bluuebunny/crossref_metadata_2025_split huggingface dataset:
An Evaluation of Survival of Space Maintainers: A Six-year Follow-up Study
Authors: Tulunoglu Ozlem , Ulusu Tezer , Genç Yasemin 
Published: July 2019

Abstract
The aim of this study was to evaluate the median survival time of fixed and removable space maintainers related to age groups, gender, and their distribution in upper and lower dental arches. The adherence of patients to a periodic recall program and the success rate of different types of space maintainers related to different arches were also evaluated. This study included 663 patients aged between 4-15 years old that were treated between the years of 1997 and 2002. The patients were categorized into four main groups: lost to follow-up, failed, successful, and censored at the end of study. Three hundred forty-five space maintainers were considered lost to follow-up, 83 were considered failed, 206 successful, and 20 censored-at-end. The overall median survival time of the appliances was 6.51 months. Median survival time was 7.25 months in the 4-6 age group, 6.35 months in the 7-12 age group, and 7.0 months in the 13+ age groups. Median survival time was 5.76 months in girls and 7.11 months in boys. Median survival time of space maintainers was 7.17 months for maxilla and 6.69 months in the mandible. Median survival time was 5.25 months for space maintainers fabricated in both arches.

Citation
Tulunoglu Ö, Ulusu T, Genç Y. An Evaluation of Survival of Space Maintainers: A Six-year Follow-up Study J Contemp Dent Pract 2005 February;(6)1:074-084.
The Effect of Bleaching Agents on the Surface Hardness of Tooth Colored Restorative Materials
Authors: Taher Nadia Malek 
Published: July 2019

Abstract

Aim of the Study
The aim of this study was to evaluate the effect of at-home (Opalesence/Dr. kit 15%, Ultradent, Products, Inc. South Jordan, UT, USA) and in-office (Superoxol 35%, Sultan Chemists, Inc., Englewood, NJ, USA) bleaching on the surface hardness of the following tooth colored restorative materials: composite resin, Point-4 (P4), Kerr Corporation, Orange, CA, USA; ormocer, Admira (AD),VOCO, Germany; compomer Dyract AP (DY), Dentsply DeTrey GmbH, Germany; and resin modified glass ionomer cement, Fuji II LC (FL), GC Corporation, Japan.

Methodology
Sixty specimens were prepared; 15 specimens of each material (each group n = 5, control after 15 days, at-home and in-office). All specimens were stored in distilled water at room temperature for 24 hrs before testing. A universal testing machine (Micromet 2100 series micro hardness testers) was used for testing Vicker's surface hardness for the three groups for every tested material. All results were statistically analyzed with one way analysis of variance (ANOVA), Post hoc Tukey HSD tests (P<0.05), and percentage changes for Tukey.

Results
All the tested materials showed an increase in Vicker's surface hardness between base line (24 hrs) and the control group after 15 days storage in distilled water except DY which showed a decrease in surface hardness. All tested materials showed a decrease in surface hardness from control group after 15 days and both at-home and in-office bleaching agents except DY which showed increased values.

Significance
At-home as well as in-office bleaching agents have a softening effect on some tooth colored restorative material, and the patient must be aware before using them.

Citation
Taher NM. The Effect of Bleaching Agents on the Surface Hardness of Tooth Colored Restorative Materials. J Contemp Dent Pract 2005 May;(6)2:018-026.
The Weight Change of Various Light-Cured Restorative Materials Stored in Water
Authors: Yalcin Filiz 
Published: July 2019

Abstract
This study investigated weight changes of seven different light-cured composite restorative materials, one polyacid glass ionomer compomer, and one light-cured glass-ionomer cement following short-term and long-term storage in water. Two packable composites, three universal (hybrid) composites, one microglass composite, one polyacid glass ionomer resin composite (compomer), one microhybrid low-viscosity (flowable) composite, and one light cured glass ionomer composite cement were evaluated in this study. The weight changes of these specimens were measured daily (short-term storage), and they were measured after six weeks (long-term storage) using an electronic analytical balance. A significant difference was found in Ionoliner, Dyract AP, Opticor flow, Charisma, and Solitare 2, but no significant difference was found in the others (Filtek Z 250, Filtek P60, TPH Spectrum, and Valux Plus). Weight change showed a tendency to increase with the time of water storage. The greatest weight change occurred in light-cured glass ionomer composite cement (Ionoliner), which is followed in order by the weight changes in Dyract AP, Opticor Flow, Charisma, Solitare 2, Filtek Z250, Filtek P60, TPH Spectrum; Valux Plus had the least amount of change.

Citation
Keyf F, Yalcin F. The Weight Change of Various Light-Cured Restorative Materials Stored in Water. J Contemp Dent Pract 2005 May;(6)2:072-079.
Immediate Loading of Two Single Tooth Implants in the Maxilla: Preliminary Results After One Year
Authors: Nuzzolese Emilio 
Published: July 2019

Abstract
This clinical report describes the traumatic avulsion of the left maxillary central and lateral incisors with minimal tissue trauma, followed by placement of provisional restorations of two root-form implants in a 14-year old female patient. Ten days following the avulsion, implant therapy was performed with Summers osteotomes and flapless technique using a root-form 3i osseotite NT. Angulated abutments and acrylic provisional crowns were placed. No occlusal contact was detected. An impression was made 30 days after implant insertion and ceramic restorations were placed 3 months later. No significant soft tissue contraction was observed during the provisional period. The patient exhibited no clinical or radiologic complications for 8 months after loading. In carefully selected under-aged patients implant therapy and immediate loading in the anterior maxilla for traumatic tooth avulsion may prove to be valuable to avoid soft tissue contraction, alveolar bone resorption, and positive esthetic/psychological response.

Citation
Nuzzolease E. Immediate Loading of Two Single Tooth Implants in the Maxilla: Preliminary Results After One Year. J Contemp Dent Pract 2005 August;(6)3:148-157.
A Survey of Localized Lesions of Oral Tissues: A Clinicopathological Study
Authors: Bataineh Anwar , Al-Dwairi Ziad Nawaf 
Published: July 2019

Abstract

Objective
The purpose of this study was to establish the relative prevalence of the different histopathological aspects of biopsied localized soft tissue oral lesions in a university-based dental school biopsy service.

Study Design
A retrospective analysis of patients’ records with localized lesions treated in the Department of Oral Medicine and Oral Surgery between 2001 and 2004 was conducted. The lesions were classified into either fibrous lesions or soft hemorrhagic lesions. Clinical data regarding age, gender, location, and treatment of the lesions were obtained for each case.

Results
The majority of the lesions were located in the gingiva. There were a total of 294 cases of which 182 (61.9%) were fibrous lesions and 112 (38.1%) were soft hemorrhagic lesions. All cases were treated by excisional biopsy and elimination of the chronic irritant.

Conclusion
Although this data might be used as a guide for forming clinical impressions about oral lesions, the clinician must always be aware of the possible occurrence of more rare lesions. This study indicates there are some differences in age and gender distribution as well as in location between the different lesions.

Citation
Bataineh A, Al-Dwairi ZN. A Survey of Localized Lesions of Oral Tissues: A Clinicopathological Study. J Contemp Dent Pract 2005 August;(6)3:030-039.
The Prevalence of Dental Caries among International Students at U.S. Universities
Authors: Woodmansey Karl F. 
Published: July 2019

Abstract
Last year 572,509 international students studied at U.S. universities. The dental health of these students is as diverse as the countries from which they come. This paper discusses the known prevalence and causative factors of dental disease among these students, reported global variations in oral health, and barriers to receiving care faced by international students while in the U.S. The author recommends greater appreciation of the dental needs of this population by scholastic administrators and suggests further research to better quantify the dental needs of this population.

Citation
Woodmansey KF. The Prevalence of Dental Caries among International Students at U.S. Universities. J Contemp Dent Pract 2005 November;(6)4:124-135.
Clinical Management of the Dental Patient Taking Multiple Drugs
Authors: Jacobsen Peter L. , Chávez Elisa M. 
Published: July 2019

Abstract
Adverse drug reactions (ADRs) occur often in elders often due to polypharmacy. Those over 65 currently comprise 13% of the population but consume approximately a third of all drugs prescribed. Increased care when prescribing certain drug classes and careful monitoring of the patient can prevent many ADRs. This article examines four questions that should be addressed when providing dental care for an older patient taking multiple medications. These include: (1) what are the medical conditions that necessitate the medications, (2) what impact do these medical conditions have on the provision of care, (3) what are the oral side effects of the medications, and (4) how will the patient's current list of medications alter the dentist's prescribing patterns for drugs used in dentistry?

Citation
Jacobsen PL, Chávez EM. Clinical Management of the Dental Patient Taking Multiple Drugs. J Contemp Dent Pract 2005 November;(6)4:144-151.
Effect of Placement Techniques on the Marginal Adaptation of Class V Composite Restorations
Authors: Sensi Luis Guilherme , Marson Fabiano Carlos , Baratieri Luiz Narciso , Junior Sylvio Monteiro 
Published: July 2019

Abstract

Statement of the Problem
Several techniques are proposed for the restoration of Class V cavities but there is no agreement in the literature as to which technique is more effective.

Purpose
To evaluate the effect of different techniques of composite increment placement on the marginal adaptation of Class V restorations.

Methods and Materials
Twenty-four human molars were selected and prepared with standardized saucershaped cavity dimensions of 3.0 mm (occlusal-gingival), 2.0 mm (mesial-distal), and 2.0 mm (depth). The margins are in reference to the cemento-enamel junction with 1.5 mm being located on enamel and 1.5 mm on dentin. The cavities were randomly assigned into three groups (n=8) and restored with composites as follows: Group 1, the occlusal increment was placed and cured first followed by the gingival increment; Group 2, the gingival increment was placed and cured first followed by the occlusal increment; and Group 3, the cavities were restored with one bulk increment. Restorations were immediately finished and stored for 24 h in tap water. Specimens were subjected to thermocycling (1000 cycles, 5°C to 55°C, 30 s dwell time) and immersed in 0.5% basic fuchsin solution for 24 h in room temperature. After rinsing with running water, the restorations were sectioned longitudinally and enamel and dentin margins were evaluated and scored according to the microleakage on a 0-3 scale. Data were subjected to Kruskal-Wallis test at p<0.05.

Results
Median of microleakage scores for all evaluated groups was zero. No statistical difference was observed among the three groups both in enamel (p = 0.5929) and dentin (p = 0.3679) margins

Conclusion
The placement technique did not influence the marginal adaptation of moderate Class V restorations.

Clinical Significance
No differences on marginal adaptation were observed when restoring conservative Class V cavities using incremental or bulk placement techniques.

Citation
Sensi LG, Marson FC, Baratieri LN, Junior SM. Effect of Placement Techniques on the Marginal Adaptation of Class V Composite Restorations. J Contemp Dent Pract 2005 November;(6)4:017-025.
The Significance of Marginal Gap and Overextension Measurement in the Evaluation of the Fit of Complete Crowns
Authors: Boeckler Arne F. , Stadler Anke , Setz Jürgen M. 
Published: July 2019

Abstract

Introduction
An important criterion for the success of a crown is marginal fit. However, in the patient's mouth fit can only be evaluated by subjective methods. This study describes the correlation between objective marginal fit and its subjective evaluation by dentists and dental technicians.

Materials and Methods
Thirty human premolars and molars were randomly divided into six groups and prepared with a shoulder. For each of the six groups, complete crowns were made of different alloys and technologies (casting: AuAgCu, AuPdPt, PdAgAu, CoCrMo, and Ti; milling: Ti). The crowns were cemented with provisional cement. Ten dentists and 10 technicians were asked to evaluate the fit of the crowns with a new dental explorer. The crowns were then cleaned and cemented with a zinc-oxide-phosphate-cement. The marginal gap and a possible overextended margin of the crowns were examined under a special 4x light microscope with a magnification level of 560 X. The means of the gaps and the overextended margins were calculated for each group. Significances were detected by analysis of variance (ANOVA) and the post-hoctest (Bonferroni, p<0.05). Correlations between objective measuring and subjective evaluation were evaluated using the Pearson test. The influence of the measured values on the subjective evaluation was determined by regression analyses.

Results
Crowns made from different alloys and technologies showed partly significantly (p<0.05) different marginal gaps (mean ranging from 35ìm to 92ìm) and significantly (p<0.05) different overextended margins (mean ranging from 40ìm to 149ìm). There were significant correlations (p<0.05) between subjective findings and objective data. Significant correlations (p<0.01) were also found between the subjective findings of dentists and technicians. Compared to the marginal gap, only the overextended margin had a significant influence (p=0.00) on the subjective evaluations of the clinicians.

Conclusion
Crowns from different alloys and technologies showed differences in marginal fit. Marginal gap and the overextension of the crowns significantly correlated with the subjective evaluation of their fit by dentists and dental technicians. For the decision of the clinicians, whether a crown is acceptable, overextension was more important than marginal gap.

Citation
Boeckler AF, Stadler A, Setz JM. The Significance of Marginal Gap and Overextension Measurement in the Evaluation of the Fit of Complete Crowns. J Contemp Dent Pract 2005 November; (6)4:026-037.
Load-to-fracture Value of Different All-ceramic Crown Systems
Authors: Snyder Mark David , Hogg Kyle Douglas 
Published: July 2019

Abstract

Objectives
The purpose was to investigate the potential difference in the load-to-fracture values of several all-ceramic crown systems. Five different coping-reinforced all-ceramic crown systems were selected. Ten crowns from each system were fabricated and luted to standardized titanium dies.

Methods
The study consisted of five groups of ten samples each, all luted using G.C. Link Max resin adhesive cement. Group A: IPS Eris®, Group B: Cerac® In-lab Alumina coping, Group C: Cerac® In- lab Zirconia coping, Group D: Procera® AllCeram Alumina coping, and Group E: Procera® Zirconia coping. Following cementation, the samples were placed under a 5 Kg static load for 10 minutes insuring proper seating and stored in 100% humidity for one week. All samples were visually inspected prior to testing and were loaded to fracture at the rate of 0.5 mm/min using a universal-testing machine.

Results
Group A = 321.49 KgF ± 113.69 (S.D.), Group B = 288.63 ± 102.82 (S.D.), Group C = 266.58 ± 69.17 (S.D.), Group D = 295.49 ± 80.54 (S.D.), and Group E = 420.37 ± 82.45 (S.D.). The data were analyzed using an unpaired t-test; this indicated a statistical difference between group E and all of the others (P-value ≤0.039).

Conclusions
We concluded under these conditions, the Procera® Zirconia crown system has significant higher load-to-fracture value than several other all-ceramic crown systems.

Citation
Snyder MD, Hogg KD. Load-to-fracture Value of Different All-ceramic Crown Systems. J Contemp Dent Pract 2005 November;(6)4:054-063.
Perceived Sources of Stress within a Dental Educational Environment
Authors: Al-Omari Wael M. 
Published: July 2019

AbstractThe aim of this study was to identify the perceived sources of stress among dental students, dental hygiene students, and dental technology students enrolled at Jordan University of Science and Technology (JUST). The modified dental environment stress questionnaire was administered to 183 students. The perceived stressors varied between major and year. Dental students gave high scores for examinations, reduced holidays, inadequate time for relaxation, fear of failure, completing clinical requirements, and differences in opinion between staff. Dental hygiene students gave the highest scores for uncertainty about the field of study as future career, examinations, inadequate clinical training and supervision, inadequate relaxation, and discrimination between students. Dental technology students also gave high scores for uncertainty about future career, examinations, approachability of the staff, inadequate relaxation, and completing requirements. Females are more stressed than males with regard to personal factors. Dental technology and/or dental hygiene students have significantly higher scores than dental students in 12 items. Students who reported their first choice of study was not their current field of study showed more stress concerning their future careers. The high scores reported for some stressors among students emphasize the need to address student's concerns.CitationAl-Omari WM. Perceived Sources of Stress within a Dental Educational Environment. J Contemp Dent Pract 2005 November;(6)4:064-074.
Assessment of DMFT and Enamel Hypoplasia Among Junior High School Children in Iran
Authors: Daneshkazemi A.R. , Davari A. 
Published: July 2019

Abstract

Aim
The main purpose of this study was to assess the prevalence and distribution of decayed, missing, and filled teeth (DMFT) and enamel hypoplasia in 12-year old students in junior high school in Iran.

Materials and Methods
This descriptive study was carried out in 2001 on 1,223 12-year old students, which were randomly selected in Yazd and Hadi-Shahr, Iran. A questionnaire was designed to record the status of the teeth along with the occupational and educational levels of parents. Data was analyzed using SPSS software, the Chi-square test, and analysis of variance (ANOVA).

Results
The mean DMFT score was 1.8 ± 1.75 and 28.6% of the students were caries-free. There was no significant relationship between DMFT and the rate of dental caries with parents’ education and occupation. The percentage of enamel hypoplasia was 32.7%. No statistically significant relationships were found between hypoplasia and DMFT with regard to gender. The relationship between enamel hypoplasia with DMFT score and dental caries was statistically significant.

Conclusion
In the present study findings for DMFT scores in 12-year old junior high school children are higher than global standards according to the World Health Organization (WHO) references for the year 2000. There was a strong association between enamel hypoplasia and dental caries, and this subject suggests early diagnosis of enamel defects, health education programs, and suitable treatments should be emphasized in junior high school-aged children.

Citation
Daneshkazemi AR, Davari A. Assessment of DMFT and Enamel Hypoplasia Among Junior High School Children in Iran. J Contemp Dent Pract 2005 November;(6)4:085-092.
Retrospective Clinical and Radiologic Evaluation of Nonsurgical Endodontic Treatment in Human Immunodeficiency Virus (HIV) Infection
Authors: Suchina John A. , Levine Debora , Flaitz Catherine M. , Nichols C. Mark , Hicks M. John 
Published: July 2019

AbstractPurposeThis retrospective study evaluated the clinical and radiographic status of nonsurgical endodontic treatment (ET) of anterior and posterior teeth in HIV-seropositive patients.MethodsET was analyzed in 26 anterior and 34 posterior teeth from 54 consecutive HIV patients (gender ratio 3 Male : 1 Female, mean age 40.2 years, mean CD4 240, CD4<500 in 88%, 12 with AIDS) over a six year period with a minimum of six months follow-up. ET was evaluated as successful, questionable, or failure based upon clinical factors (palpation, mobility, sinus tract, percussion, function, infection/swelling, occlusion, symptoms) and radiographic factors (periodontal ligament space, rarefaction, lamina dura, root resorption, obturation) during post-treatment examinations with a mean follow up of 26 months.ResultsClinical evaluation at follow up found ET outcome was successful in 88%, questionable in 10% (tenderness with percussion, mobility, widened ligament), and a failure in 2% (developed lesion after ET). Periapical lesions were present in 37% of cases (mean lesion size 6.2 mm). Following ET, mean lesion size (1.8 mm) had decreased by 71%. Obturation was evaluated as optimal or acceptable in 68%. Radiographic evaluation was considered successful in 80%, no change in 15%, and a failure in 5%.ConclusionsDespite obturation deficiencies and the immunocompromised state of the patients, endodontic therapy has a relatively high degree of success in the majority of HIV/AIDS patients. HIV infection and AIDS should not be considered as a contraindication to endodontic therapy in this patient population.CitationSuchina JA, Levine D, Flaitz CM, Nichols CM, Hicks MJ. Retrospective Clinical and Radiologic Evaluation of Nonsurgical Endodontic Treatment in Human Immunodeficiency Virus (HIV) Infection. J Contemp Dent Pract 2006 February;(7)1:001-008.
Odontogenic Myxoma – A Case Report and Clinico-Radiographic Study of Seven Tumors
Authors: Dezotti Mariela Siqueira Gião , Azevedo Luciana Reis , Fontão Flávia Noemi Gasparini Kiatake , Capelozza Ana Lůcia Ålvares , Sant'ana Eduardo 
Published: July 2019

Abstract
The primary aim of this paper is to present clinical and radiographic aspects of odontogenic myxomas diagnosed at the Stomatology Clinic of Bauru School of Dentistry, University of São Paulo, Brazil and to compare them with data reported in a series published in the literature. A second objective is to report a clinical case of odontogenic myxoma in a 9-year-old patient in whom the lesion involved the anterior region of the maxilla. Dental records between 1975 and 2000 were reviewed and seven cases diagnosed as odontogenic myxoma were found in individuals aged from nine to 60 years. Of these, four occurred in women and three in men. The mandible was affected in five cases and the maxilla in two. All patients presented with asymptomatic swelling in the affected area. A mixed radiographic result was observed in five patients, while in two patients the lesion was completely radiolucent. The borders of the lesion were well-defined in six patients. In four cases there was dental displacement, although root resorption was not observed in any of these. The treatment of choice was surgical excision. Four cases did not recur during the period of follow-up, which varied from nine months to 19 years. It was concluded the clinico-radiographic study of odontogenic myxomas should be continually refined with the aim of offering the patient an appropriate treatment, since the lesion presents a high potential for recurrence.

Citation
Dezotti MSG, Azevedo LR, Fontão FNGK, Capelozza ALA, Sant'ana E. Odontogenic Myxoma – A Case Report and Clinico-Radiographic Study of Seven Tumors. J Contemp Dent Pract 2006 February;(7) 1:117-124.