bluuebunny/crossref_metadata_2025 huggingface dataset:
Extra Cusp Formation in the Human Dentition
Authors: Kallay Juraj
Published: November 2010

SYNOPSIS IN INTERLINGUA

FORMATION DE CUSPIDES SUPERNUMERARI IN LE DENTITION HUMAN.-Cuspides supernumerari pote posseder differente intrinsec e etiam extrinsec structuras que es importante in le diagnose de lor origines. Le differentias es non semper discernibile quanto al possession de un pulpa o un independente radice. Un importantia special in le question del origine de tal cuspides debe esser attribuite al presentia o absentia de pulpa. Cuspides sin pulpa existe in consequentia de un causation disveloppamental plus tosto que genetic. Es discutite in detalio le possibilitates del origine de cuspides supernumerari, incluse cuspides anormal, tuberculos de Carabelli, e le protostiloide.
The Influence of Flow Rate on the Concentration of Uric Acid in Human Parotid and Submandibular Saliva
Authors: Mason D.K. , Boyle J.A. , Harden R.M. , Duncan Anne M. , Greig W.R.
Published: November 2010

SYNOPSIS IN INTERLINGUA LE INFLUENTIA DEL VELOCITATE DEL FLUXO SUPER LE CONCENTRATION DE ACIDO URIC IN HUMAN SALIVA PAROTIDIC E SUBMANDIBULAR.-Esseva constatate un correlation inverse inter le concentration de acido uric e le velocitate del fluxo in saliva submandibular e parotidic. In saliva parotidic, le concentration de acido uric declinava ab 4,1 ± 0,43 mg per 100 ml a lente velocitates de fluxo ad 1,7 ± 0,28 mg per 100 ml a rapide velocitates de fluxo. Le concentrationes esseva plus basse in saliva submandibular, i.e., 3,3 ± 0,46 mg per 100 ml e 1,3 ± 0,12 mg per 100 ml, respectivemente.

In studios de acido uric, saliva deberea esser colligite quando le velocitate del fluxo es superior a 1 ml per minuta, viste que sub ille conditiones pauc variation occurre in le augmentos del concentration e precise mesurationes del rapiditate del fluxo non es necessari.
Histochemical Detection of Succinic Dehydrogenase in Osteoclasts following Experimental Tooth Movement
Authors: Takimoto Kazuo , Deguchi Toshio , Mori Masahiko
Published: November 2010

SYNOPSIS IN INTERLINGUA DETECTION HISTOCHIMIC DE DEHYDROGENASE SUCCINIC IN OSTEOCLASTOS POST MOVIMENTO EXPERIMENTAL DE DENTES.—Technicas histochimic esseva utilisate pro demonstrar le existentia de osteoclastos in tissus supportante dentes le quales se trovava sub pression orthodontic. Le plus alte concentration de dehydrogenase succinic in osteoclastos esseva detegite in sectiones de specimens decalcificate con EDTA in solution neutre a 4 C sequite de congelation in stato fresc. Osteoclastos disveloppate sub conditiones normal e orthodontic monstrava le plus alte grado de activitate de dehydrogenase succinic. Illos se disveloppava in le superficie periodontal de osso alveolar al latere del pression e, characteristicamente, in le superficie medullar de osso alveolar al latere del tension.
Reaction of Cobalt-Chromium Casting Alloy with Investment
Authors: Allan F.C. , Asgar Kamal
Published: November 2010

SYNOPSIS IN INTERLINGUA

REACTION DE ALLIGATO FUSIONAL DE COBALT E CHROMO CON INVESTIMENTO.—AIterationeS chimic occurrente intra le investimento ligate a phosphato durante le prisa e le cocer esseva determinate per technicas a diffraction de radios X. Es postulate le occurrentia de certe reactiones durante le processo. Tests del resistentia al compression effectuate a varie temperaturas corroborava ille postulatos.

Esseva trovate al interfacie inter alligato e investimento tres productos de reaction. Immediatemente adjacente al alligato se formava un scalia de color gris sequite de un intimemente adherente scalia de color verde. Esseva etiam trovate intra le investimento areas de un composito de color rubiastre-brun. Le sonda electronic esseva usate pro analysar iste productos.
Dose-Response of Submandibular Glands to Carcinogen Pellets in Rats and Hamsters
Authors: Chaudhry Anand P. , Liposky Richard , Jones Jefferson
Published: November 2010

LE RELATION INTER DOSE DE GRANOS DE CARCINOGENOS E LE RESPONSA DEL GLANDULAS SUBMANDIBULAR IN RATTOS E HAMSTERS.-Pro studiar le effecto carcingenic de 5, 10, e 20 pro cento 7:12-dimethylbenz-γ-anthraceno mixte con glycerol polyethylenic, granos continente le mixtura experimental esseva implantate in le glandulas submandibular de rattos e hamsters durante un periodo de 24 septimanas. Un augmento in le dose del carcinogeno resultava in un augmento correspondente in le inducite tumores maligne in ambe species. Tamen, plus carcinomas de cellulas squamose esseva notate in le rattos e plus sarcomas in le hamsters. Iste statisticamente significative differentia in le typo de tumor inducite es attribuite a specificitate de tissu o de specie.
A Comparative Study of Evolutionary Trends in the Upper Molar Pattern of Recent Kodiak Island Inhabitants and Subrecent Javanese Malayans
Authors: Korenhof C.A.W.
Published: November 2010

SYNOPSIS IN INTERLINGUA

UN STUDIO COMPARATIVE DEL TRENDS EVOLUTIONARI IN LE CONFIGURATIONES SUPERO-MOLAR DE RECENTE HABITANTES DEL INSULAS KODIAK E SUBRECENTE MALAYES DE JAVA.-Multe cautitate e forte evidentia es necessari si on vole reguardar un molar particular como plus primitive (i.e., conservatori) o plus progressive que un altere. Pro clarificar iste problema il es indispensabile comparar un numero de detalios morphologic. Le resultato de un tal comparation demonstra que certe characteristicas de un typo de molar indica un stato conservatori, durante que altere characteristicas manifesta tendentias plus progressive que illos occurrente in un altere typo molar, e iste divergentias pare esser disproviste de regularitate.
The Posteruptive Maturation of Teeth II. Normal Posteruptive Maturation of Hamster Teeth
Authors: Yonan Theodore , Nicolau José , Fosdick Leonard S.
Published: November 2010

SYNOPSIS IN INTERLINGUA LE MATURATION POSTERUPTIVE DEL DENTES. II. LE NORMAL MATURATION POSTERUPTIVE DEL DENTES DEL HAMSTER.-Esseva studiate alterationes del morphologia e del resistentia contra acido in adamante de dentes del hamster in correlation con le crescente etate del dentes. Un progressivemente plus spisse strato de adamante con crescente densitate e resistentia contra acido se formava e progredeva in le direction del pulpa con le avantiamento del etate del dente. Le accrescite spissitate e densitate—e, presumitemente, le decrescite permeabilitate-de ille strato es grossiermente in parallela con le declino del activitate cariogene in dentes de hamster durante le avantiamento del etate del animal. Simile alterationes in dentes human explica possibilemente le decrescente susceptibilitate pro carie con le progresso del etate. In le interesse del disveloppamento de methodos pro le acceleration del resistentia contra carie, il es proponite que dentes del hamster es usate pro studiar le possibilitate de stimular le formation del strato mentionate.
Structure and Microdistribution of Components of Gold Alloys
Authors: Söremark Rune , Freedman George , Goldin Joel , Gettleman Lawrence
Published: November 2010

SYNOPSIS IN INTERLINGUA STRUCTURA E MICRODISTRIBUTION DEL COMPONENTES DE ALLIGATOS DE AURO.-Specimens de fusible alligatos de auro dental esseva subjicite a un varietate de analyses, incluse le sondage electronic e le quantitative microscopia televisional. Esseva trovate que certe areas de inclusion esseva componite de oxydos de metallo, durante que alteres consisteva de materiales de investimento o de politura. Es postulate que inhomogeneitates contribue possibilemente al migration de iones metallic ad in dur e molle tissus oral.
Osteosclerotic Changes in the Periapical Region of Filled Root Canals in the Rat Molar
Authors: Bordoni Noemi , Inés Egozcue María , Erausquin Jorge
Published: November 2010

SYNOPSIS IN INTERLINGUA

ALTERATIONES OSTEOSCLEROTIC IN LE REGION PERIAPICAL DEL REPLENATE CANAL DE RADICE IN LE MOLAR DEL RATTO.—Iste investigation esseva interprendite pro analysar certe causas additional del osteosclerosis observate in le ratto, per examines microscopic, al nivello del radice mesial del prime molar mandibular post un tractamento del canal de radice. Esseva preparate sectiones histologic ab mandibulas de tres gruppos de rattos. Istos esseva un gruppo de controlo, un gruppo con tractamento del mesial canal de radice, e un gruppo con le mesme tractamento in association con exposition distal. Le studio histiometric del sectiones monstrava que le complicationes periapical del non-tractate radices vestibular, lingual, e distal produce osteosclerosis additional al nivello del tractate radice mesial.
Local Effect of Alcohol in Combination with DMBA on Hamster Cheek Pouch
Authors: Elzay Richard P.
Published: November 2010

SYNOPSIS IN INTERLINGUA

LE EFFECTO LOCAL EXERCITE SUPER LE CAVITATE VESTIBULAR DEL HAMSTER PER ALCOHOL IN COMBINATION CON DMBA (7,12-DIMETHYL-BENZ-(a)-ANTHRACENO).—Le cavitates esseva pingite con solutiones de DMBA in oleo mineral, solutiones de DMBA in alcohol ethylic, oleo mineral, e alcohol ethylic durante 9 septimanas e tenite sub observation durante 18. Le periodos latente e le magnitude e numero del resultante tumores esseva registrate. Le constatationes microscopic esseva correlationate subsequentemente con le constatationes clinic. Le cavitates tractate con DMBA in alcohol exhibiva tumores plus precocemente e de magnitude e numero plus grande que cavitates tractate con DMBA in oleo mineral. Alcohol sol non produceva tumores. Per consequente il pare que alcohol age localmente como agente promotori in experimental carcinogenese oral.
Autoradiographic Investigation of Tritiated Thymidine Incorporation into Replanted and Transplanted Mouse Mandibular Incisors
Authors: Grewe John M. , Felts William J.L.
Published: November 2010

Mandibular incisors from young inbred Balb/C mice were extracted and subsequently replanted or isologously transplanted to determine morphologic and cellular kinetic alterations.
Calcium Exchange in the Alveolar Process of Dogs as Influenced by Light Continuous and Heavy Intermittent Orthodontic Forces
Authors: Sklaroff Jerome H. , Rabinowitz Joseph L.
Published: November 2010

A quantitative autoradiographic technic was used to measure 45Ca activity in the tension and pressure regions of dog teeth subjected to light continuous or heavy intermittent forces. Significant differences were observed betwee these regions.
Microstructure and Physical Properties of Alloys for Partial Denture Castings
Authors: Asgar Kamal , Allan F.C.
Published: November 2010

Four types of alloys were investigated from the viewpoint of effect of composition and casting technic on the microstructure and mechanical properties. The microstructures are shown and correlated with the mechanical properties.
Sorption of a Group of Dicarboxylic Acids by an Insoluble Polyamide
Authors: Stobaugh K. , Nematollahi J. , Guess W.L. , Autian J.
Published: November 2010

To develop a body of knowledge in regard to solute-polymer interactions, a study was initiated to investigate the sorption characteristics of a group of dicarboxylic acids when nylon-6,6 was used as the substrate. Results demonstrated the importance of the hydrophobic moiety in the group of acids.
Dental Silicate Cements: IV. Phosphoric Acid Modifiers
Authors: Wilson Alan D. , Kent Brian E. , Batchelor Reginald F.
Published: November 2010

The effects of aluminum, zinc, and boric acid modifiers of the phosphoric acid liquid on the properties of the final cement are discussed, and conclusions are drawn as to the optimum conditions required for a good cement. Several commercial brands are examined in the light of the constitution of the liquids.
Carbon 14 Tryptophan Metabolism in Developing Rat Molars
Authors: Slavkin Harold C. , Tetreault C.E. , Bavetta Lucien A.
Published: November 2010

The unique absence of tryptophan in dentin collagen and its presence in enamel protein(s) provide a specific biological marker for the study of amelogenesis. Isotopic tryptophan was administered to young rats. The incorporation, distribution, and turnover of the labeled precursor was expressed in auto-radiographs and radiochemically determined specific activitv.
Interaction of Carbon Dioxide Laser Radiation with Enamel and Dentin
Authors: Lobene Ralph R. , Bhussry B. Raj , Fine Samuel
Published: November 2010

Extracted human teeth were exposed to continuous CO2 laser radiation at 10.6μ. Ground sections showed disrupted enamel rods and incineration of odontoblastic processes in dentin. Microradiographs of enamel confirmed the changes observed, which were probably due to high temperature elevation at the site of interaction together with heat flow from this region.
Experimental Allogeneic Tooth Transplantation in the Rhesus Monkey
Authors: Fong Chester , Berger James , Morris Merle
Published: November 2010

Forty-eight tooth allografts were studied histologically and radiographically four days to 13 months after transplantation. The pulp and periodontal ligament degenerated and appeared to be replaced by host tissues. The relationship of attached fibers or uncalcified cells of hard tissues to allograft immunity and the similarity of tooth allografts to other tissue allografts were discussed.
Dental Caries in Gnotobiotic Rats Inoculated with Lactobacillus casei
Authors: Rosen S. , Lenney W.S. , O'Malley J.E.
Published: November 2010

Dental caries was produced in three strains of gnotobiotic rats inoculated with Lactobacillus casei. A high-sucrose (L-2000) diet induced greater caries activity than a coarse-particle (modified Hoppert-Webber-Canniff) diet.
Effect of a Cavity Varnish on the Retention of Restorations
Authors: Kanai Shozo , Fusayama Takao
Published: November 2010

The effect of a cavity varnish on the retention of restorations was investigated by measuring the force needed to push restorations out of bottomless ivory cavities. The varnish lining decreased the retaining force of inlays by half, and slightly increased the retaining force of amalgam restorations.
Compounds Formed in Silver Dental Amalgam
Authors: Pihl Carl F. , Beasley Wayne M.
Published: November 2010

A high-resolution X-ray powder diffraction camera was used in the identification and crystallography of compounds in dental amalgam. The study included determination of the effects of the mercury-alloy ratio and of aging in clinical restorations. In all instances, γ silver-tin, y silver-mercury, and γ tin-mercury were found. Line positions, relative intensities, and calculated lattice parameters were tabulated for each compound.
Linear Model of Tooth Displacement by Applied Forces
Authors: Ledley Robert S. , Huang Han K.
Published: November 2010

A theoretical linear model of the displacement of a tooth as a function of the magnitude and the direction of a force applied to the crown of the tooth was constructed. The linear assumption and its errors were discussed.
Fetal Blood Calcium Response to Maternal Hypercalcemia in Guinea Pigs
Authors: Greeson C.D. , Crawford E.G. , Chandler D.C. , Bawden J.W.
Published: November 2010

Eleven guinea pigs in advanced stages of pregnancy were given infusions of calcium gluconate and calcium chloride solutions. Fetal and maternal blood samples were collected to determine the influence of acute maternal hypercalcemia on fetal blood calcium levels. The fetal plasma calcium values were not elevated. The relationship between this result and placental transfer mechanisms was discussed.
Association of Oral Disease with 12 Selected Variables: I. Periodontal Disease
Authors: Summers Chester J. , Oberman Albert
Published: November 2010

The association of periodontal disease with 12 selected variables, considered to be intrinsic-systemic factors, was examined. A probability sample of 324 subjects, ≥ 20 years old, was studied. The statistical analyses included simple, partial, and multiple correlations, and linear regression.
X-Ray Diffraction Analyses of the Reactions Between Intact and Powdered Enamel and Several Fluoride Solutions
Authors: Wei Stephen H.Y. , Forbes Warren C.
Published: November 2010

The X-ray diffraction patterns of intact enamel treated with various fluoride solutions showed essentially no change in the crystalline structure of hydroxyapatite. The reaction between powdered enamel of various particle size and fluoride solutions showed a predominance of calcium fluoride formation. The substitution of F for OH ions in hydroxyapatite was not detected in the formation of fluorapatite under the experimental conditions.
Laboratory Studies Concerning the Enamel and Dentin Abrasion Properties of Common Dentifrice Polishing Agents
Authors: Stookey George K. , Muhler Joseph C.
Published: November 2010

In view of the meager amount of information available concerning commercially available dentifrices, a study was conducted to evaluate 43 dentifrices with regard to abrasion to enamel and dentin and enamel polishing ability. The results indicated a wide range of abrasiveness and polishing ability.
Adhesive Polyurethane Liners for Anterior Restorations
Authors: Galligan John D. , Schwartz Anthony M. , Minor Francis W.
Published: November 2010

Polyurethane-type compositions were developed as adhesive liners for poly(methyl methacrylate) restorations. Several polyglycol-diisocyanate mixtures had excellent adhesion to human dentin when applied to moist teeth in vitro. Conventional acrylic restorations became durably bonded when applied on top of these urethane liners within 15 to 30 minutes.
Glycogen Storage Within Undifferentiated Cells of the Dental Papilla: Electron Microscope Findings
Authors: Garant Philias R.
Published: November 2010

Large cytoplasmic pools of glycogen were observed within relatively undifferentiated cells in the dental papillae of the developing incisor teeth of young Swiss albino mice. Little or no glycogen was present within fully differentiated odontoblasts and fibroblasts, which suggests that the depletion of glycogen stores provides the energy needed for differentiation.
Pressure and Cephalometric Technics for Evaluation of Normal and Cleft Palate Patients: II. Palatopharyngeal Competency
Authors: Quigley Lawrence F.
Published: November 2010

Results from air pressure and cephalometric measurements for control and cleft palate patients have been compared and correlated to evaluate palatopharyngeal competency. Distances measured in a static condition correlated best with nasal air flow. Pressure data correlated least with cephalometric measurements, and their value as a measure of palatopharyngeal competency is doubtful.
Odontogenic Epithelial-Mesenchymal Interactions in Vitro
Authors: Slavkin Harold C. , Bavetta Lucien A.
Published: November 2010

Epithelial or mesenchymal isolates cultivated on the chicken chorioallantoic membrane singly do not possess the potential for tooth morphogenesis. However, when randomly recombined in vitro, their histogenic interaction relates to tooth formation. After 16 days of continuous culture, surviving recombinants formed an advanced tooth germ. Such structures did not, however, demonstrate uniformity in odontogenesis or in developmental cusp patterns.
Nocturnal Teeth-Grinding: All-Night Psychophysiologic Studies
Authors: Reding Georges R. , Zepelin Harold , Robinson John E. , Zimmerman Stuart O. , Smith Vernon H.
Published: November 2010

All-night electromyographic, electro-oculographic, and electroencephalographic studies were conducted on 40 nocturnal bruxists and 18 control subjects. Teeth-grinding incidents occurred at all stages of sleep, with a strong predominance at stage 2.
Shovel-Shaped Incisors in a Northwestern Argentine Population
Authors: Devoto Francisco C.H. , Arias Norberto H. , Ringuelet Susana , Palma Nestor H.
Published: November 2010

The prevalence and the inheritance of shovel-shaped incisors were studied in children from northwestern Argentine provinces. One hundred percent of the deciduous and permanent incisors were shovel shaped, and a high frequency of the S-gene in the permanent dentition was found. These findings demonstrate a strong Mongoloid genetic component in this population.
Quantitative Method for Studying Microleakage In Vivo and In Vitro
Authors: Going Robert E. , Myers Howard M. , Prussin Stanley G.
Published: November 2010

Quantitation of microleakage of dental restorations was evaluated in situ in humans and in vitro using neutron activation of 55Mn. Results are expressed in μg units of uptake per tooth. In general, uptake for all restorations was greater in vivo than in vitro.
Influence of Intermittent Treatment with Dietary Fluoride on Experimental Dental Caries
Authors: Shaw James H.
Published: November 2010

Fluoride-supplemented diets were fed intermittently to caries-susceptible rats in post-weaning assays. Fluoride supplements of 100 ppm for four 84-minute periods per day, 200 ppm for two 84-minute periods per day, 100 ppm for 24 hours on alternate days, and 150 ppm for 24 hours every third day were approximately as effective in reducing the caries prevalence as was 50 ppm, given continuously.
Studies on the Biology of the Periodontium of Marmosets: IV. Innervation of the Periodontal Ligament
Authors: Bernick Sol , Levy Barnet M.
Published: November 2010

The innervation of the developing and functional periodontal ligament was studied in unerupted and functional teeth of marmosets. Somatic afferent nerve fibers enter the periodontal ligament after the tooth has erupted into the oral cavity and become prominent when the tooth is in clinical occlusion.
Studies on the Biology of the Periodontium of Marmosets: V. Lymphatic Vessels of the Periodontal Ligament
Authors: Levy Barnet M. , Bernick Sol
Published: November 2010

Lymphatic vessels of the periodontal ligament were traced in the marmoset. Lymph capillaries originated in the ligament as blind endings and emptied into collecting lymph vessels, which coursed along three pathways in the ligament.
Effect of Cigarette Smoking on the Circulation of the Oral Mucosa
Authors: Shuler R.L.
Published: November 2010

Much research has been done on cigarette smoking and its relation to systemic and local pathologic conditions of the human body.1-13 No one has studied the effect of cigarette smoking on blood circulation of the oral mucosa, however. If significant changes occur in the oral circulatory system, they may have undesirable effects on systemic and local pathologic conditions. The purpose of this project was to determine whether smoking without inhaling has an effect of the blood circulation of the oral mucosa that is not mediated through the sympathetic nervous svstem.
Role of Attrition and Occlusal Contact in the Physiology of the Rat Incisor: IV. Prevention of Attrition in the Articulating Incisor
Authors: Weinreb M.M. , Michaeli Y. , Silberman G.
Published: November 2010

Basal growth in the rat incisor is controlled by occlusal restraint. The result of these two antagonistic forces is eruption, which is mediated via the periodontal ligament. The amount of eruption depends on the relation between the quality of the periodontal tissues and the amount of occlusal interference. If eruption does not rise above a certain minimum, odontogenesis proceeds abnormally.
Periodontal Condition and Blood Citrate Level in Pregnant Women
Authors: Katz A. , Shapiro S. , Gedalia I. , Zukerman H.
Published: November 2010

Plaque, gingival, periodontal indexes, and blood citrate levels were determined in 137 women at various stages of pregnancy. The indexes increased during the whole pregnancy. Blood citrate levels were significantly increased at the end of pregnancy. Estrogenic hormone is probably associated with the gingival and blood citrate alterations.
Studies on Dental Aerobiology: I. Bacterial Aerosols Generated during Dental Procedures
Authors: Micik Rudolph E. , Miller Robert L. , Mazzarella Maurice A. , Ryge Gunnar
Published: November 2010

A controlled environment operatory and specially designed human aerosol test chamber were used to study characteristics of bacterial aerosols generated from a patient's mouth during dental procedures and by common naso-oral activities. Some dental procedures generated aerosols with bacterial concentrations that exceeded those produced during coughing or sneezing and that were considered potential health hazards.
Tissue Response to a Dental Cement Containing Butyl Cyanoacrylate
Authors: Bhaskar Surindar N. , Frisch Joe , Margetis Peter M.
Published: November 2010

Tissue response to a mixture of butyl cyanoacrylate and calcium sulfate hemihydrate which polymerizes in the presence of saliva and forms a hard mass. In rat connective tissue, it produced a response which was comparable with the response to zinc oxide and eugenol.
Elastomeric Mold Liners in the Production of Porosity-Free Polymethyl Methacrylate
Authors: Harcourt J.K. , Lautenschlager E.P. , Molnar E.J.
Published: November 2010

The presence of an elastomeric lining within the mold enabled preparation of porosity-free specimens of acrylic resin even when heating rates were far more severe than those normally used in dental laboratory procedures. The mechanisms whereby elastomeric liners prevent porosity under such conditions was investigated.
X-Ray-Opaque Reinforcing Fillers for Composite Materials
Authors: Bowen R.L. , Cleek G.W.
Published: November 2010

Clear, colorless glasses that absorb roentgen rays were prepared by melting together compounds yielding silica, boric oxide, alumina, barium oxide, and barium fluoride. Barium made the glasses radiopaque, fluoride lowered the refractive indexes, and alumina tended to stabilize the glasses. These glasses are part of the reinforcing fillers for composite dental restorative materials.
Effect of Ascorbic Acid on Guinea Pig Skin Collagen Synthesis: II. Neutral and Acid Soluble Collagens, Mucopolysaccharides, and Amino Acid Composition
Authors: Richmond Virginia , Stokstad E.L.R.
Published: November 2010

Scorbutic guinea pigs incorporated approximately 15% as much 3H-proline into total skin collagen as the positive controls and hydroxylated 66% as much of that incorporated. 35S-sulfate incorporation into skin acid mucopolysaccharides was decreased 50% in scorbutic animals. Amino acid composition of collagens was similar to that of other vertebrates.
Release of Fluoride into Saliva after Topical Fluoride Application
Authors: Margalit D. , Gedalia I.
Published: November 2010

Fluoride uptake by the surface enamel of teeth treated with fluoride solutions in vitro and fluoride release into saliva after topical applications in vivo were determined. The fluoride uptake after NaF + Na2HPO4 treatment was higher than that after NaF treatment. The fluoride release into saliva was less after NaF + Na2HPO4 than after NaF application, pointing to a greater permanent fluoride fixation.
Variation in Form of Human Teeth: II. An Anthropologic and Forensic Study of Maxillary Canines
Authors: Taylor R.M.S.
Published: November 2010

Qualitative analyses were made of morphologic variations in a large collection of extracted upper canine teeth. The range of variation negates the concept of a "typical tooth," but it also shows that certain characteristics tend to be found in a particular tooth of the dentition. This knowledge may be of anthropologic or forensic significance, especially to facilitate the identification of incomplete teeth.
Germ-Tube Formation by Candida albicans
Authors: Bartegs Henry A. , Cohen Gerson , Scopp Irwin W.
Published: November 2010

Germ-tube formation by Candida albicans has been reported as a significant factor in pathogenicity. Wide variation has been seen in the formation of germ tubes in saliva specimens obtained from both healthy and systemically ill individuals. However, germ tubes were found more frequently and in higher numbers in the saliva of diseased individuals.
Ability of Human Subjects To Discriminate Forces Applied to Certain Teeth
Authors: Bonaguro John G. , Dusza Gerald R. , Bowman Douglas C.
Published: November 2010

Subjective ability to discriminate differences in intensity of forces applied to maxillary canines, and to mandibular incisors, canines, and first premolars was evaluated. Least relative differences in force could be discriminated through the maxillary canines (8.6 to 9.5%). Individuals showed nearly the same discriminatory ability for all mandibular teeth tested.
3H-Proline Uptake by the Cells of Developing Teeth
Authors: Sayegh Fayez S.
Published: November 2010

Thirty-seven white rats were killed one-half hour to two months after administration of 3H-proline. Radioautographs were made, and the labeled material was assessed in the cells of the developing tooth at various stages of maturation. From the location of the labeled material, it was possible to compare the metabolic activities of the cells involved in tooth formation as well as the daily rate of dentin apposition.
Study of Cornification of Oral Epithelium by Phase Microscopy
Authors: Wilkens Donald H. , Wheatcroft Merrill G.
Published: November 2010

Smears of oral epithelial cells from 20 male students were compared by phase microscopy and by the Papanicotaou technic to determine degrees of cornification. Cell size and numbers of nucleated and nonnucleated cells were dependable criteria for determining degrees of cornification by phase microscopy.
Improved Tensile Specimen for Dental Casting Gold Alloys
Authors: Gettleman Lawrence , Harrison James D.
Published: November 2010

An improved tensile specimen has been developed for dental casting gold alloys. This design approximates the size of most dental castings, is easily produced, conforms with current engineering specifications, and can be used in the as-cast condition. Conducted tests showed that the specimens yield reliable mechanical values which should permit better correlation between materials-testing procedures and applied research efforts.
Effect of Natural Fluoride Concentration of Human Tooth Enamel on Fluoride Uptake In Vitro
Authors: Nicholson C.R. , Mellberg J.R.
Published: November 2010

Duplicate enamel blocks were cut from teeth of various age groups from areas differing in water fluoride. One enamel block received a fluoride treatment and the other served as control. Analysis of thin enamel layers revealed that ftuoride uptake was inversely proportional to the natural F- concentration and, in a lesser degree, to the age of the enamel.
Analyses of the Amalgam-Tooth Interface Using the Electron Microprobe
Authors: Wei Stephen H.Y. , Ingram M.J.
Published: November 2010

The electron microprobe was used to study tooth discoloration caused by old silver amalgam fillings. Oscilloscopic displays were obtained for the distribution of tin, silver, and mercury. In addition, a linear graphic display technic on the Enhancitron was used. The oscilloscopic displays showed the migration of tin from the amalgam into the enamel and dentin as opposed to silver or mercury, or both. These findings confirm that tooth discoloration is due to the presence of tin from the process of corrosion rather than from mercury.
Innervation of the Developing Hamster Maxillary Incisor
Authors: Katele Kazimieras V. , James Verda Elizabeth
Published: November 2010

Innervation was correlated with the development of the hamster maxillary incisor. Absence of nerves until the stage of morphodifferentiation indicated that the initiation and early proliferation of the tooth germ was independent of the nervous system. The association of nerves with the tooth germ during morphodifferentiation may mean that nerves influence shaping of the tooth.
Nasal Airflow as an Index of Success of Prosthetic Management of Cleft Palate
Authors: Lubker James F. , Schweiger James W.
Published: November 2010

Nasal airflow measures, articulation test scores, breath-pressure ratios, and listener judgments were obtained for 30 prosthetically managed cleft-palate speakers and noncleft controls. Results indicate nasal airflow measures will not provide accurate prediction of velopharyngeal function, although they permit some gross differentiation.
Dental Silicate Cements: VIII. Acid-Base Aspect
Authors: Kent Brian E. , Wilson Alan D.
Published: November 2010

The decrease in acidity of dental silicate cements with age was studied and was considered to be a major factor controlling the setting reaction. Liquid type, powder/liquid ratio, temperature, and storage conditions profoundly affected cement acidity.
Effect of Soaking on the Physical Properties of Plaster
Authors: El Tannir Mohamed D. , Imam Hassan F.
Published: November 2010

One kind of plaster and one kind of dental stone were subjected to a series of experiments in order to evaluate the effect of soaking before mixing on the physical properties of the set gypsum. Highest accuracy was seen with no soaking, and highest strength was achieved with one-minute soaking.
Adrenal Corticosteroids in Submaxillary Fluid
Authors: Katz Fred H. , Shannon Ira L.
Published: November 2010

Human submaxillary fluid was analyzed for adrenal corticosteroids. The major steroids present were cortisol and cortisone, with small amounts of tetrahydrocortisol. The concentrations of cortisol and cortisone after adrenocorticotropin (ACTH) injection were similar to those previously found in parotid fluid.
Maximum Palatal Height in Patients with Turner's Syndrome
Authors: Johnson Ronald , Baghdady Virgin S.
Published: November 2010

A specially designed palatal height gauge demonstrated the mean palatal height of the dental casts of 14 female patients with Turner's syndrome to be higher in all age categories than in a normal control population. Also, palatal height was found to increase with age in both control and experimental groups.
Acid Glycosaminoglycans and Sialic Acid Content in Salivary Glands of Rats
Authors: Kofoed Jorge A. , Curbelo Halina M. , Houssay Alberto B.
Published: November 2010

Sialic acid concentrations were strong in retrolingual and moderate in submaxillary glands. Uronic acid concentrations were high in retrolingual, intermediate in parotid, and low in submaxillary glands. The major fraction in the submaxillary and parotid glands was hialuronic acid, whereas in the retrolingual gland, the major fractions were glycoproteins and dermatan-sulfate.
Cytogenetic Studies of Normal and Cleft-Palate Epitheliums in Mice
Authors: Nasjleti Carlos E. , Spencer Herbert H. , Blankenship John , Walden James M.
Published: November 2010

This study investigated teratogenic activity on a cellular level through analysis of the cytogenetic complex in cleft-palate epithelial cells from the progenies of mice treated with cortisone. Analysis showed no detectable aberration from a normal chromosomal complement.
Radiation Effects on Oral Epithelium in Mice
Authors: Goepp Robert A. , Fitch Frank W.
Published: November 2010

The effects of radiation on the replacement of mature squamous cells was studied in the dorsal epithelium of the mouse tongue. The findings suggested that the movement of basal cells into the mature population may be due to increased focal pressures in the basal cell layer resulting from the occurrence of mitotic activity in clusters.
The Connective Tissue Fiber-Water Interface: Physiological and Pathological Implications
Authors: Smith David J.
Published: November 2010

Water has an important role in the maintenance of the structure and strength of collagen fibers. Lathyrism and certain corticoid hormones alter the degree of hydration of the fibers and consequently affect their strength.
The Function and Reliability of the Orogranulocytic Migratory Rate as a Measure of Oral Health
Authors: Klinkhamer James M. , Zimmerman Stuart
Published: November 2010

The phenomenon of leukopedesis in gingival and periodontal tissues was measured by counting the number of orogranulocytes migrating into the mouth during repeated intervals of 30 seconds. Measurements were carried out with a computerized electronic cell grading system and classified as a non-subjective laboratory routine for indexing oral inflammation. For orogranulocytic migratory rate (OMR) readings above 1.2 X 106/30 sec, a minimum of three determinations is required for reliability. Single readings suffice for OMR's below 0.5 X 106/30 sec, which indicates that the system is suitable for mass screening purposes.
The Internal Surface and Pore Structure of Enamel
Authors: Dibdin G.H.
Published: November 2010

Krypton adsorption studies demonstrated an easily accessible system of pores in enamel, measuring between 10 and 300 A, volume 0.26%, with a surface area of about 0.4 sq m/gm (BET analysis). These figures are much lower than is suggested by figures for water content, possibly resulting from non-penetration of the organic matrix by krypton. Some measurements on demineralized enamel were also made.
Some Observations on Human Saliva Proteins and their Role in the Formation of the Acquired Enamel Pellicle
Authors: Hay D.I.
Published: November 2010

Some aspects of the composition of the acquired enamel pellicle are reported. Studies of the interaction of saliva proteins with apatite have been extended, and preliminary observations on the postsecretion behavior of the gland saliva proteins are described.
Effect of Ascorbic Acid on Guinea Pig Skin Collagen Synthesis: I. Total Collagen
Authors: Richmond Virginia , Stokstad E.L.R.
Published: November 2010

A deficiency of ascorbic acid caused a decreased uptake of 3H-proline into guinea pig skin collagen and a further decrease in the 3HO-proline formation; inanition from pair-feeding was not a contributing factor. An anemia developed in the completely deficient animals which was prevented with low levels of ascorbic acid in another group.
Quantitative Changes in the Mast Cell Population in Mikulicz's Recurrent Oral Aphthae
Authors: Dolby Alan E. , Allison Russell T.
Published: November 2010

A comparative quantitative analysis was made of the mast cell population in Mikulicz's recurrent oral aphthae of varying duration with the mast cell population in normal mucosa. There was a reduction in the number of mast cells with increasing age of the lesion. The significance of these findings in relation to the etiology of the disease is discussed.
Bone Remodeling Dynamics After Intraperitoneal Administration of Radioactive Sodium Phosphate(32P)
Authors: Bures M.F. , Wuehrmann A.H.
Published: November 2010

A tetracycline bone labeling method was used for quantitative evaluation of bone remodeling changes in tibias and mandibles after intraperitoneal administration of radioactive sodium phosphate (32P). Periosteal bone formation decreased during the 60-day experimental period, whereas endosteal formation rates were not altered significantly.
Influence of 226Ra and 239Pu on the Dental Root Canal of the Dog
Authors: Taylor Glenn N. , Rehfeld Carl E. , Christensen William R. , Jee W.S.S.
Published: November 2010

Radium 226 and plutonium 239 were injected into dogs and the rate of decrease in diameter of the pulp chambers of the lower first molar of the left side of the mandible was studied by periodic radiograms. No significant change in the rate of decrease occurred as the result of irradiation.
Relation Between the Fluoride Contents of Rat Calcified Tissues
Authors: Singer Leon , Armstrong W.D.
Published: November 2010

Rats were fed known amounts of fluoride for different periods of time. The fluoride content of bones and molar dentin was determined. The predictability of fluoride content based on analysis of dentin or a particular bone was determined.
Lymphatic Vessels of the Dental Pulp in Dogs
Authors: Bernick S. , Patek Paul R.
Published: November 2010

Lymphatic vessels of the pulp were traced in the teeth of dogs. At the coronal surface the lymph capillaries originated as blind beginnings in the pulp proper near the zone of Weil, whereas they are found adjacent to the odontoblastic layer on the lateral surfaces. These capillaries emptied into collecting lymph vessels that coursed apically to exit through the apical foramens to finally drain into the alveolar lymphatic vessel.
Blood and Urinary Fluoride Levels in Humans Associated with Ingestion of Sodium Fluoride-Containing Vitamin Tablets
Authors: Hennon David K. , Stookey George K. , Muhler Joseph C.
Published: November 2010

Urine and blood were collected from young adults at predetermined intervals after ingesting 1.0 mg fluoride (as NaF) in a vitamin-fluoride tablet. The urinary fluoride concentration reached a maximum within two hours and returned to the normal value within six hours; blood fluoride changes paralleled those observed in urine.
Postnatal Development of the Rat Mandible
Authors: Bernick Sol , Patek Paul Q.
Published: November 2010

The postnatal development of the anterior segment of the mandible was studied in the rat. A bar of cartilage was observed in the symphyseal region of a 1-day-old rat, which exhibited endochondral-like bone formation up to 21 days of age. Then the hyaline cartilage became transformed into fibrocartilage, which persisted in the midline of the adult rat mandible.
Chemical Composition of Dental Gold Casting Alloy and Dental Wrought Gold Alloys
Authors: Eick J.D. , Caul H.J. , Hegdahl T. , Dickson G.
Published: November 2010

The chemical composition of dental casting gold alloys and dental wrought gold wire alloys was determined by use of a modification of a previously described X-ray emission method. Since 1928 and 1932 there has been little change in either type of alloy; there has been a decrease in platinum content in both, and 1 % nickel is now found in wire alloys.
Some Effects of Molybdenum on Connective Tissue
Authors: Johnson R.H. , Little J.W. , Bickley H.C.
Published: November 2010

Rats fed large quantities of molybdenum for several weeks suffered connective tissue disturbances as revealed by reduced breaking strength of femurs, rupture strength of skin samples, and other tests.
Punch-Shear Test for Dental Purposes
Authors: Roydhouse Richard H.
Published: November 2010

Average shear stress may be calculated from the force required to punch a cylinder out of a disk or plate of material. Tests on aluminum and methacrylate sheets enabled the comparison of dental restoratives with human dentin. Human dentin was found to have a greater shear strength than dental restoratives other than gold alloys.
Effect of Phosphate Supplements on Cavitation in Hamsters Infected with Caries-Conducive Streptococci
Authors: Englander Harold R. , Keyes Paul H.
Published: November 2010

Anticavitation findings from this study on the administration of phosphated compounds in a caries-inducing ration to hamsters coincide with the findings of other investigations in rats, but indicate that a regimen of phosphate supplements tends to lose its retarding effect on cavitation unless administered continuously.
Tissue Conditioners: I. Composition and Structure
Authors: Braden Michael
Published: November 2010

An analysis of five proprietary tissue conditioners was made. The polymer powders were generally a blend of copolymers based on poly( ethyl methacrylate); the liquid was a mixture of an aromatic ester ( commonly butyl phthalyl butyl glycolate) with up to 30% ethanol. Rapid gelling occurred because ethanol is a solvent for poly( ethyl methacrylate) .
Scanning Electron Microscope Study of Composite Restorative Materials
Authors: Lee Henry L. , Swartz Michael L.
Published: November 2010

The relatively new class of dental restoratives, termed composites, contain thermosetting resin binders and various concentrations of several different types of inert fillers. Because of the difference in types and amounts of resins and fillers present in these materials, each restorative has unique surface characteristics. In addition, the various resin types and filler loading volumes cause differences in polymerization shrinkage and adaptation to the margins of cavity preparations. A combination of radioisotope leakage studies and scanning electron microscopy studies was used to investigate the surfaces and adaptation of four of these composite materials in comparison to an amalgam, silicate, and unfilled poly ( methyl methacrylate).
Clinical Studies of Dental Cements: IV. A Preliminary Study of a Zinc Oxide-Eugenol Cement for Final Cementation
Authors: Gilson T.D. , Myers G.E.
Published: November 2010

An experimental reinforced zinc oxide-eugenol cement of compressive strength 8,000 to 9,200 psi (562 to 647 kg/sq cm) was studied clinically for the final cementation of all types of inlays, crowns, and bridges. Patients were recalled and their teeth were examined for loose restorations and symptoms of leakage. Success rates of 94.4% for single restorations and 93.6% for bridge retainers justify further clinical use of the cement.
Plaque pH During and After Ingestion of Solid Sugar
Authors: Luoma H. , Turtola L.O. , Kuokka I.M.A. , Kaartinen A.J.
Published: November 2010

The average pH change from the control value 6.72 for 19 subjects was -0.59 during ingestion of experimental sucrose tablets and -0.84 after ingestion. There was a significant positive correlation between the magnitude of the pH decreases and the amount of plaque. There was no correlation between the magnitude of the pH changes and the DMFS index.
Formation of Cariogenic Impactions in Rats
Authors: Hunt H.R. , Rosen S. , Hoppert C.A.
Published: November 2010

Large particles of rice in a modified HWC ration produced cariogenic impactions in the second transverse fissures of the first mandibular molars and in the transverse fissures of the second mandibular molars of rats. These particles were captured in caries-susceptible rats by the longitudinal sulcus terminating in each fissure.
Autoradiographic Evaluation of Gingival Response to Injury: V. Surgical Trauma in Low-Protein-Fed Mature Rats
Authors: Stahl S.S. , Tonna E.A. , Weiss R.
Published: November 2010

Mature low-protein-fed and control rats received a gingival injury. Healing responses were studied by autoradiographic analysis. Thirty days after injury, malnourished rats showed lower mean labeling indexes than rats fed ad libitum, which suggests that aging and malnutrition may reduce the compensatory response to injury after initial peaks of repair activity are completed.
Dynamics of Dental Epithelium During Tooth Eruption
Authors: Glavind Leif , Zander Helmut A.
Published: November 2010

The dental epithelium of developing rat molars was labeled with tritiated thymidine administered by gastric intubation. Labeled ameloblasts were lost from all enamel surfaces at approximately the same time by desquamation into the gingival sulcus. The other cells of the dental epithelium proliferated to form the renewing epithelial cuff.
Purification and Properties of Acid Phosphomonoesterase from Human Parotid Saliva
Authors: Nakamura Ryo , Watanabe Tatsuo , Iwamoto Yoshifumi , Tsunemitsu Akira
Published: November 2010

Acid phosphomonoesterase was separated from human parotid saliva and purified. The purified enzyme was proved homogeneous on sedimentation and disk electrophoresis. The optimal pH of the enzyme was 3.3. The enzyme had no substrate specificity for phosphomonoesters and its activity was inhibited by SnF2 or NaF.
Beneficial Effects of Fish Protein Concentrate on Increment in Body Weight and Microscopic Appearance of the Tibia and Alveolar Bone of Rats Fed a Wheat Flour-Containing Ration
Authors: Ershoff B.H. , Lal J.B. , Bernick S.
Published: November 2010

Immature male rats fed a wheat flour-containing ration similar to diet 256 of McClure were retarded in growth and exhibited pathologic changes in the tibia and alveolar bone. A supplement of 8% fish protein concentrate promoted an increment in body weight comparable to that of rats fed a natural food stock ration and prevented the changes in the tibia and alveolar bone.
Zinc Oxide-Eugenol Cements: II. Study of Erosion and Disintegration
Authors: Wilson Alan D. , Batchelor Reginald F.
Published: November 2010

The continuous leaching of eugenol from zinc oxide-eugenol cements causes the weak zinc eugenolate chelate, which forms the binding matrix, to decompose and the cement to disintegrate. The relevance of specification solubility and disintegration tests is discussed.
Electron Microprobe Analyses of the Remineralization of Enamel
Authors: Wei Stephen H.Y.
Published: November 2010

The electron microprobe was used to analyze the calcium and phosphorus concentrations of sound, acid-etched, and remineralized enamel. By use of a weak acetic acid-potassium acetate buffer, it was found that the demineralization probably affected only the first 10 micrometers of the enamel surface. This demineralized enamel was successfully remineralized by the use of a calcifying solution. The changes in calcium and phosphorus concentrations and the Ca/P ratios were determined.