bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of the stress distribution and displacement of the denture base in edentulous mandible with varied implant positions
Authors: Dang Meghna K. , Ram Sabita M. 
Published: July 2019

AbstractAimTo evaluate the stress distribution and displacement of the denture base in a three dimensional finite element edentulous mandibular model with varied implant positions.Objectives1)To evaluate the stresses induced by implants placed in the anterior region of the edentulous mandible. 2)To evaluate the stresses induced by implants placed in the anterior and posterior region of the edentulous mandible. 3)To compare the stresses induced by implants placed in the anterior and posterior region of the edentulous mandible. 4)To evaluate the displacement of the denture base with implants placed in the anterior and posterior region of the edentulous mandible.5)To compare the displacement of the denture base with implants placed in the anterior and posterior region of the edentulous mandible.Materials and MethodsThe materials used were Nobel Biocare Mk III long implants 3.75×13mm and short 5.0×7.0 implants, with O-ball head attachment. ANSYS: Version 8.0 software was used to create a threedimensional model of an edentulous mandible and the two implants. Three models were prepared having different implant positions and locations. MODEL 1 Two long implants were placed interforaminally in lateral incisor region one on either side, MODEL 2 Four long implants placed were interforaminally in the central incisor and canine region two on either side and, MODEL 3 Two long implants were placed interforaminally in lateral incisor region one on either side and two short implants were placed in premolar region 3mm posterior to the mental foramen, one on either side. Two types of load were given ie. vertical load of 325N was applied in second premolar and first molar region and 10N load at 150 angulation was applied in the anterior incisors area. The models were loaded separately and stress pattern, amount of stresses and amount of displacement were analysed for each model.ResultsThe observations obtained from the ANSYS software were analysed and evaluated. Model 3 showed the least amount of stress and displacement as compared to the other models.ConclusionWhen the implants were spread across the arch both anteriorly and posteriorly, the stress induced in the bone and displacement of the denture base was seen to be less.
Management of non vital maxillary central incisors with open apex using Mineral Trioxide Aggregate apical plugs – Case report
Authors: Sumanthini M.V. , Malgaonkar Mausami A 
Published: July 2019

AbstractThe case report describes the treatment of maxillary central incisors with open apex, due to apical root resorption, as a consequence of trauma experienced three years earlier. Open apices pose a challenge during endodontic treatment. Several materials and methods have been widely studied and tried in the past. Obtaining an adequate apical seal is of paramount importance regardless of the material or technique used. In the present case the involved teeth were treated nonsurgically using white Mineral Trioxide Aggregate (MTA) as an artificial apical barrier. The treated teeth were asymptomatic and the follow up clinical and radiographic examination showed healing with apparent regeneration of periradicular tissues. Extrusion of MTA beyond the root end was not an obstacle in the healing process. MTA can be considered an effective material to treat infected open apex teeth with large periapical lesions.
Compound Composite Odontoma in Mandibular Symphysis – A Rare Case
Authors: Khalid Imran , Asnani Usha , Poonja Kartik , Vaidya Sushrut , Sonavane Smita , Bhardwaj Alok 
Published: July 2019

AbstractCompound odontomas are considered as hamartomatous malformation rather than true neoplasms & are generally asymptomatic . The exact etiology is unknown and is often associated with the overretained deciduous teeth, most commonly in maxillary anterior region. In this case, multiple denticles or rudimentary teeth numbering 42 were enucleated from the mandibular symphysis region of 17 yr old female which makes this case rare and unusual. Evidence of concrescence, fusion, dilaceration were observed in the denticles enucleated, the size of which ranged from 2mm to 10mm.
A Comparative Evaluation of Marginal Fit of Crowns Fabricated by Three All Ceramic CAD-CAM Systems Using Their Respective Scanners - An in vitro study
Authors: Ram Sabita M. , Agarwal Niku 
Published: July 2019

AbstractAimTo evaluate and compare the marginal fit of crowns fabricated by three All Ceramic CAD-CAM systems using their respective scanners.Objectives1. To evaluate the marginal fit of All Ceramic crowns fabricated using Contact scanner- Procera system. 2. To evaluate the marginal fit of All Ceramic crowns fabricated using Optical scanner-Lava system. 3. To evaluate the marginal fit of All Ceramic crowns fabricated using Laser scanner-Cercon system. 4. To compare the marginal fit of crowns fabricated by three All Ceramic CAD-CAM systems using their respective scanner-Contact scanner, Optical scanner and Laser scanner.Materials and Methods5 crowns fabricated with Contact scanner- Procera system (Group I), 5 crowns fabricated with Optical scanner-Lava system (Group II), 5 crowns fabricated with Laser scanner-Cercon system(Group III). The marginal fit would be evaluated at two stages for each group: A- Pre-veneering stage (coping) B-Post-veneering stage (crown).ResultsThe mean value of marginal gap with Group IA was 27.48 +2.63 and IB was 26.13+ 0.85 and that of Group IIA was 23.27 + 0.99 and IIB 19.22 + 0.88. The mean value of marginal gap of Group IIIA was 32.80 + 2.46 and IIIB was 28.77 + 1.94.ConclusionThe marginal gap was maximum with Group III and minimum with group II amongst the three used systems. The mean marginal gap values of subgroup B were less than subgroup A.
Reattachment of the Original Crown Fragment
Authors: Sevekar Shrirang , Subhadra H.N 
Published: July 2019

AbstractCrown fracture is the most common type of dental injuries. One of the options of management of crown fracture is fragment reattachment, whenever intact tooth fragment is available after trauma. The fragment reattachment procedure presents a conservative, simple and esthetic alternative. This article presents two case reports of restoration of fractured maxillary central incisor using fragment reattachment.
Desmoplastic Ameloblastoma
Authors: Dekate Kamlesh , Poonja L.S 
Published: July 2019

AbstractAccording to the WHO (2005) classification of odontogenic tumors, Desmoplastic Ameloblastoma is recognized as a variant of ameloblastoma. This rare entity differs from the other forms of ameloblastoma in its anatomical location, morphology, and radiographic appearance. Due to its unusual clinic-pathological presentation, this tumor mimics various odontogenic as well as non odontogenic neoplasms. We are presenting a rare case of desmoplastic ameloblastoma in the maxilla in a 53 year old male with regards to its clinical and radiographical and histological viewpoints.
Use of a Whitening Dentifrice for Control of Chlorhexidine Stain
Authors: Tillis Terri S. I. 
Published: July 2019

Abstract
A major drawback to clinicians prescribing and patients using chlorhexidine rinse is the development of extrinsic staining. In order to assess the effectiveness of a whitening dentifrice in controlling chlorhexidine stain, fifty-seven subjects rinsed with chlorhexidine twice daily while brushing twice daily with either fluoridated whitening or a fluoridated regular dentifrice. Stain was assessed at 1, 2, and 3 month intervals using a stain index with two components; one with parameters for color intensity and one for tooth percentage covered with stain. Facial surfaces accumulated less stain than lingual surfaces. For many, although not all surfaces, and at many, although not all time periods, the group utilizing the whitening dentifrice exhibited less staining.
It is advantageous to recommend a whitening dentifrice that has demonstrated stain suppression when prescribing a chlorhexidine rinse. Improved patient satisfaction leading to increased compliance with the antimicrobial regimen is a desired outcome.
Anticalculus Effects of a Novel, Dual-Phase Polypyrophosphate Dentifrice: Chemical Basis, Mechanism, and Clinical Response
Authors: White Donald J. , Gerlach Robert W. 
Published: July 2019

Abstract
A primary patient motivation for oral hygiene is effective cleaning. Dentifrice serves this function by including ingredients such as abrasives, surfactants, and specialized cleaning ingredients such as anticalculus agents. This introductory article aims to introduce professionals, educators, and researchers on the rationale behind the development of an improved cleaning dentifrice formulation, Crest® Multicare Advanced Cleaning. This new dentifrice is based upon the application of an improved tartar control/cleaning ingredient that is a polymeric adjunct of a pyrophosphate anion commonly applied in tartar control and stain control whitening dentifrices. The polypyrophosphate anion, also referred to as sodium hexametaphosphate, produces superior activity and substantivity on oral surfaces as compared to both pyrophosphate and some other commonly used dental cleaning ingredients and cleaning/conditioning adjuncts. The increased activity and substantivity translate into significant improvements in the prevention of dental stains and supragingival calculus and in the non-abrasive removal of dental stains.
This article describes the structure of polypyrophosphate as compared to the parent pyrophosphate molecule, the rationale for its improved chemistry, and, in particular, its tartar control chemistry. In addition, the fundamental mechanisms of calculus formation and inhibition are reviewed. Lastly, a preliminary clinical study evaluating the improved efficacy of a polypyrophosphate dentifrice is described where the tartar control activity of the polypyrophosphate dentifrice is shown to be superior to that of a clinically established and marketed industry standard pyrophosphate dentifrice.
A Study of the Relationship between Helicobacter pylori and Recurrent Aphthous Stomatitis Using a Urea Breath Test
Authors: Baharvand Maryam , Maleki Ziba , Alavi Kaveh , Sayyari Ali Akbar , Sayyari Leila 
Published: July 2019

AbstractAimHelicobacter pylori (H. pylori)is one of the most common, well-known pathogenic agents in the development of peptic ulcers. Some investigators have shown a relationship betweenH. pyloriand recurrent aphthous stomatitis (RAS). However, this relationship is controversial. The aim of this study was to determine the association betweenH. pyloriand RAS using the urea breath test (UBT).Methods and MaterialsForty-three patients with RAS and 44 non-RAS controls were evaluated. There were no differences in gender or age in the two groups. The UBT was used to detectH. pyloriinfection. Data were analyzed using the Chi Square Test.ResultsSixteen individuals in the RAS patients (37.2%) and 14 individuals in the control group (31.8%) had a positive breath test. The difference was not considered statistically significant (p=0.597).ConclusionIn the present study no statistically significant difference was found between frequency of a positive UBT in the RAS patients and the control group.Clinical SignificanceSince the probability of a positive test was higher in the more severe cases this factor needs to be considered in the diagnosis and treatment of RAS.CitationMaleki Z, Sayyari AA, Alvavi K, Sayyari L, Baharvand M. A Study on the Relationship betweenHelicobacter pyloriand Recurrent Aphthous Stomatitis Using a Urea Breath Test. J Contemp Dent Pract 2009 January; (10)1:009-016.
Severe Fracture of the Maxillary Alveolar Process Associated with Extrusive Luxation and Tooth Avulsion: A Case Report
Authors: Saito Célia , Gulinelli Jéssica , Cardoso Leandro , Garcia Idelmo Rangel , Panzarini Sônia , Poi Wilson , Sonoda Celso 
Published: July 2019

Abstract

Aim
The aim of this report is to present a case of severe fracture of the maxillary anterior alveolar process with substantial bone dislodgement associated with extrusive tooth luxation and avulsion.

Background
Dentoalveolar trauma is a challenge to dentistry, especially in young patients, for it can lead to early tooth loss which compromises oral function, esthetics, self-esteem, and alter the long-term plan of care for the victim.

Case Report
A 12-year-old girl with severe dentoalveolar trauma to the maxillary anterior region presented for emergency care for her injury. Treatment consisted of fracture reduction of the alveolar process, repositioning of the teeth that had suffered extrusive luxation, placement of a semi-rigid splint, and suturing of soft tissue lacerations. The traumatized teeth presented with pulpal necrosis and were treated endodontically. After 24 months of follow up, the fracture of the alveolar process was completely healed and the displaced teeth presented no signs of ankylosis or root resorption.

Summary
First-aid care contributed remarkably to this case allowing the re-establishment of esthetics, function, and patient's self-esteem. In spite of trauma extension the treatment outcomes were favorable.

Clinical Significance
Cases of dentoalveolar trauma should be evaluated on an individual basis. However, early emergency management and adequate follow-up can prevent further complications and contribute to treatment success.

Citation
Saito C, Gulinelli J, Cardoso L, Garcia Jr IR, Panzarini S, Poi W, Sonoda C. Severe Fracture of the Maxillary Alveolar Process Associated with Extrusive Luxation and Tooth Avulsion: A Case Report. J Contemp Dent Pract 2009 January; (10)1:091-097.
Prosthetic Rehabilitation in a Four-year-old Child with Severe Early Childhood Caries: A Case Report
Authors: Parisotto Thaís Manzano , de Souza-e-Silva Cíntia Maria , Steiner-Oliveira Carolina , Nobre-dos-Santos Marinês , Gavião Maria Beatriz Duarte 
Published: July 2019

AbstractAimThe purpose of this case report was to describe the oral rehabilitation of a 4-year-old girl presenting early childhood caries (ECC).BackgroundECC is highly prevalent in developing countries and its severity increases with age. This disease implies serious consequences for the development of the stomatognathic system and for the child's quality of life. As young children are usually anxious about dental treatment, their level of co-operation is limited, leading to a challenging situation.Case ReportA 4-year-old girl was brought by her mother for dental treatment with the complaint of pain. The clinical examination revealed extensive carious coronary destructions. After preventive and curative measures, the oral rehabilitation was performed; it included the use of stainless steel crowns, resin filled celluloid crowns with previous cementation of glass post pins when necessary, an amalgam restoration, orthodontic treatment, and a partial removable prosthesis. The child has been monitored in the Pediatric Dentistry Clinic at 4-monthly intervals.SummaryThe oral rehabilitation was able to reestablish the oral health in the primary arches mutilated by early childhood caries. This is important for the establishment of an adequate mixed and permanent dentition, for proper facial and maxillary growth, and to the child's psychological and social development.Clinical SignificanceThe full management, including preventive, psychological, and curative measures of a young child with severe ECC was found successful after 8 months of follow up. This result can encourage the clinicians to seek a cost-effective technique such as stainless steel crowns, resin filled celluloid crowns, and partial removable prosthesis to reestablish the oral functions and improve the child's psycho-social development.CitationParisotto TM, Souza-e-Silva CM, Steiner-Oliveira C, Nobre-dos-Santos M, Gavião MBD. Prosthetic Rehabilitation in a Four-year-old Child with Severe Early Childhood Caries: A Case Report. J Contemp Dent Pract 2009 March; (10)2:090-097.
A Comparison of Two Methods of Removing Zinc Oxide-eugenol Provisional Cement Residue from the Internal Surfaces of Cast Restorations
Authors: Mosharraf Ramin , Soleimani Bahram , Sanaee-Nasab Mehdi 
Published: July 2019

Abstract

Aim
Remnants of provisional cement on the internal surface of cast restorations can have an adverse effect on the performance of the definitive luting agent. The purpose of this study was to evaluate the effect of eugenolcontaining temporary cement removal by an ultrasonic or an organic solvent on the retentive strength of metallic rings cemented to amalgam cores using zinc phosphate cement.

Methods and Materials
A total of 36 cylindrical amalgam cores measuring 5.9×6 mm were made by condensing amalgam in brass molds for use in this in vitro study. Thirty-six cylindrical spaces measuring 6×6 mm were machined in the center of cast rods of Rexillium III alloy to create simulated retainers. The amalgam cores were divided into two groups and provisionally cemented in these cylindrical spaces (retainers) using zinc oxide–eugenol cement. After separation of the cores from the retainers, one group was cleaned with an ultrasonic cleaning device with water and the other group was cleaned with Solitine organic solvent. All specimens were then cemented with zinc phosphate cement and the samples were stored at 100% humidity in a 37°C water bath after which they were tested with a DARTEK testing machine at a 0.02 cm/minute cross head speed. The data were analyzed using the Independent t-test.

Results
The statistical analysis revealed a significant difference between the two groups (p<0.0005) with the ultrasonic group having significantly higher separation forces than the Solitine group.

Conclusion
Specimens treated with the ultrasonic cleaner showed a higher mean separation force (282.2 MPa) than the solvent group (439.5 MPa).

Clinical Significance
Despite the convenience of using an organic solvent for cleaning the internal surface of cast restorations, the ultrasonic cleaning method is more effective for removing zinc-oxide temporary cement.

Citation
Mosharraf R, Soleimani B, Sanaee-Nasab M. A Comparison of Two Methods of Removing Zinc Oxide-eugenol Provisional Cement Residue from the Internal Surfaces of Cast Restorations. J Contemp Dent Pract 2009 May; (10)3:027-034.
In vitro Pharmacodynamic Activities of Root Canal Sealers on Enterococcus faecalis
Authors: Er Özgür , Sagsen Burak , Esel Duygu , Yagmur Gülhan , Altintop Yasemin 
Published: July 2019

AbstractAimThe aim of this study was to evaluate the antimicrobial efficiency of different root canal sealers onEnterococcus faecalis(E. Faecalis) at different time intervals.Methods and MaterialsAll sealers used were mixed according to the manufacturers’ instructions then 75 mg of each sealer was added to different sterile tubes and evaluated at 20 minutes, 24 hours, 7 days, and 30 days. A time-kill assay (TKA) was used to determine the antimicrobial efficiency of the sealers.ResultsAH Plus and MCS were found to be bactericidal at 20 minutes and 24 hours, but only MCS was bactericidal at the seventh and thirtieth days. Epiphany and Sealapex were found to be bacteriostatic at the seventh and thirtieth days but indifferent at 20 minutes and 24-hours. MCS and AH Plus were both found to be bactericidal in freshly mixed samples, but only MCS was bactericidal at longer time periods. Epiphany Sealer and Sealapex were found to be bacteriostatic at longer time periods but indifferent at 20 minutes and 24 hours.ConclusionThe antibacterial effect of MCS was greater than the other sealers evaluated.Clinical SignificanceSealers containing eugenol and epoxy resin might be preferable due to their antibacterial effect.CitationSagsen B, Er O, Esel D, Yagmur G, Altintop Y.In vitroPharmacodynamic Activities of Root Canal Sealers onEnterococcus faecalis. J Contemp Dent Pract 2009 May; (10)3:035-042.
The Effect of Pre-cooling the Injection Site on Pediatric Pain Perception during the Administration of Local Anesthesia
Authors: Aminabadi Naser Asl , Farahani Ramin Mostofi Zadeh 
Published: July 2019

Abstract

Aim
The aim of the study was to evaluate the effect of cooling the soft tissue of injection sites on the pain perceptions of pediatric patients during the administration of local anesthesia for routine dental procedures.

Methods and Materials
A total of 160 children aged 5-6 years were included in the present study. On a random basis, the subjects were allocated to the without ice pretreatment (WIP) group (topical anesthesia + counterstimulation + distraction) or the ice pretreatment (IP) group (cooling + topical anesthesia + counterstimulation + distraction). During the administration of an inferior alveolar nerve block, the children's behavior was assessed using the sound, eye, and motor (SEM) scale. The statistical analysis of data was performed based on the analysis of variance (ANOVA).

Results
There were no significant differences within the groups between the values of the sound, eye, and motor components for either the WIP or the IP groups (P>0.05). All three components of the SEM in the IP group were consistently lower than the WIP group (P<0.05). Moreover, the SEM value for the WIP group surpassed the IP group (P<0.05).

Conclusions
Cooling the site of infiltration block prior to the injection of local anesthesia significantly reduced the pain perceived during injection of local anesthetic agent in pediatric patients.

Clinical Significance
Pre-cooling of the soft tissues of an injection site prior to the administration of a local anesthetic can minimize the discomfort and anxiety associated with the injection procedure and facilitates the management of pediatric patients during this phase of a dental procedure.

Citation
Aminabadi NA, Farahani RMZ. The Effect of Pre-cooling the Injection Site on Pediatric Pain Perception during the Administration of Local Anesthesia. J Contemp Dent Pract 2009 May; (10)3:043-050.