bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Energy Density on the Physical Properties of Resin-Based Restorative Materials when Polymerized with Quartz-Tungsten Halogen or LED-Light
Authors: Ruttermann Stefan , Tomruk Senay , Raab Wolfgang H. M. , Janda Ralf 
Published: September 2019

Objectives: The purpose of this study was to evaluate flexural strengths, moduli, and maximum deflection of Clearfil AP-X (APX) and Ceram-X Mono (CXM) when cured with a quartz-tungsten halogen (QTH) or an LED-light (LED).Methods: Specimens were made according to ISO 4049 and cured with QTH or LED for 10, 20 or 60 s. Flexural strength, modulus, and deflection were determined after 24 h water storage at 37°C and after thermocycling. Statistical significance was P<.05.Results: Flexural strength did not depend on energy density or curing light and was significantly higher for APX than for CXM but decreased after thermocycling for both materials. Modulus and deflection depended on energy density. Modulus was significantly higher for APX than for CXM and increased for APX but decreased for CXM after thermocycling. Deflection decreased with increasing energy density and decreased after thermocycling. Though energy density did not influence flexural strength, it positively correlated with flexural modulus and negatively with maximum deflection.Conclusions: Energy density did not influence flexural strength but modulus and deflection. Thermocycling affected all material properties. The LED was as effective as the QTH. (Eur J Dent 2010;4:183-191)
Frequency of Developmental Dental Anomalies in the Indian Population
Authors: Guttal Kruthika S , Naikmasur Venkatesh G , Bhargava Puneet , Bathi Renuka J 
Published: September 2019

Objectives: To evaluate the frequency of developmental dental anomalies in the Indian population.Methods: This prospective study was conducted over a period of 1 year and comprised both clinical and radiographic examinations in oral medicine and radiology outpatient department. Adult patients were screened for the presence of dental anomalies with appropriate radiographs. A comprehensive clinical examination was performed to detect hyperdontia, talon cusp, fused teeth, gemination, concrescence, hypodontia, dens invaginatus, dens evaginatus, macro- and microdontia and taurodontism. Patients with syndromes were not included in the study.Results: Of the 20,182 patients screened, 350 had dental anomalies. Of these, 57.43% of anomalies occurred in male patients and 42.57% occurred in females. Hyperdontia, root dilaceration, pegshaped laterals (microdontia), and hypodontia were more frequent compared to other dental anomalies of size and shape.Conclusions: Dental anomalies are clinically evident abnormalities. They may be the cause of various dental problems. Careful observation and appropriate investigations are required to diagnose the condition and institute treatment. (Eur J Dent 2010;4:263-269)
The Effect of Framework Design on Stress Distribution in Implant-Supported FPDs: A 3-D FEM Study
Authors: Eraslan Oguz , Inan Ozgur , Secilmis Asli 
Published: September 2019

Objectives: The biomechanical behavior of the superstructure plays an important role in the functional longevity of dental implants. However, information about the influence of framework design on stresses transmitted to the implants and supporting tissues is limited. The purpose of this study was to evaluate the effects of framework designs on stress distribution at the supporting bone and supporting implants.Methods: In this study, the three-dimensional (3D) finite element stress analysis method was used. Three types of 3D mathematical models simulating three different framework designs for implant- supported 3-unit posterior fixed partial dentures were prepared with supporting structures. Convex (1), concave (2), and conventional (3) pontic framework designs were simulated. A 300-N static vertical occlusal load was applied on the node at the center of occlusal surface of the pontic to calculate the stress distributions. As a second condition, frameworks were directly loaded to evaluate the effect of the framework design clearly. The Solidworks/Cosmosworks structural analysis programs were used for finite element modeling/analysis.Results: The analysis of the von Mises stress values revealed that maximum stress concentrations were located at the loading areas for all models. The pontic side marginal edges of restorations and the necks of implants were other stress concentration regions. There was no clear difference among models when the restorations were loaded at occlusal surfaces. When the veneering porcelain was removed, and load was applied directly to the framework, there was a clear increase in stress concentration with a concave design on supporting implants and bone structure.Conclusions: The present study showed that the use of a concave design in the pontic frameworks of fixed partial dentures increases the von Mises stress levels on implant abutments and supporting bone structure. However, the veneering porcelain element reduces the effect of the framework and compensates for design weaknesses. (Eur J Dent 2010;4:374-382)
Effects of Finger Pressure Applied By Dentists during Cementation of All-Ceramic Crowns
Authors: Zortuk Mustafa , Bolpaca Pinar , Kilic Kerem , Ozdemir Eylem , Aguloglu Suleyman 
Published: September 2019

Objectives: To compare the finger pressure applied by dentists during cementation and to examine the effect of gender and time of day on finger pressure.Methods: Fifteen dentists (9 males, 6 females) formed a study group and 10 master dies in premolar shape and Turcom Cera all-ceramic crowns were prepared to measure the maximum finger pressure applied by dentists during cementation. The dentists performed a total of 300 cementation processes. One-way analysis of variance and independent t tests were used to evaluate the results.Results: A statistically significant difference was found in the amount of pressure applied during cementation (P<.005). However, there was no significant difference for time of day or gender according to one-way analysis of variance.Conclusions: Our results show that finger pressure varies by dentist. For this reason, the optimum pressure should be determined exactly. Special equipment or an apparatus could be developed to apply that pressure. (Eur J Dent 2010;4:383-388)
Age Estimation for Dental Patients Using Orthopantomographs
Authors: Karaarslan Bekir , Karaarslan Emine Sirin , Ozsevik Abdul Semih , Ertas Ertan 
Published: September 2019

Objectives: The aim of this study was to conduct age estimates for dental patients using orthopantomographs (OPGs). The OPGs were selected by an independent author with respect to criteria and evaluated by two independent dentists. The results were compared to chronologic ages. The reliability of the estimates, concurrently made by the two independent dentists using OPGs, was also evaluated.Methods: In this retrospective study, the OPGs of 238 Turkish individuals of known chronological age, ranging from 1 to 60 years, were measured. Patients were then classified. Radiographs were evaluated by two independent dentists and age estimation was achieved according to the decades.Results: The truest age estimates made by the dentists were in the 1-10 years age range (89.6%), the most inaccurate age estimates were in the 41-50 years age range (41.7%). Results indicate that the accuracy of age estimation diminishes with age.Conclusions: Despite the variations related to the practitioners, in this study, there were no significant differences in age estimations between the two participant practitioners. Age estimation through evaluating OPGs was the most accurate in the first decade and the least in fourth decade. It can be concluded that OPGs are not adequate for accurate age estimation. (Eur J Dent 2010;4:389-394)
An Assessment of the Relationship between the Maxillary Sinus Floor and the Maxillary Posterior Teeth Root Tips Using Dental Cone-beam Computerized Tomography
Authors: Kilic Cenk , Kamburoglu Kivanc , Yuksel Selcen Pehlivan , Ozen Tuncer 
Published: September 2019

Objectives: The aim of the present study was to assess the relationship between the maxillary sinus floor and the maxillary posterior teeth root tips using dental cone-beam CT.Methods: A total of 87 right and 89 left maxillary sinus regions from 92 patients were examined using dental cone-beam CT. Images were analyzed by a specialist in oral and maxillofacial radiology. Perpendicular lines were drawn on the cross-sectional images between the deepest point of the maxillary sinus floor and the root tips of the maxillary first and second premolars and first, second and third molars, and the distances were measured using built-in measurement tools. Means, standard deviations and minimum and maximum values were calculated for all right and left premolars and molars. T-tests were used to compare measurements between left and right sides and between female and male patients.Results: The distance between sinus floor and root tip was longest for the first premolar root tip and shortest for the second molar buccodistal root tip for both right and left sides. No statistically significant differences were found between the right and left side measurements or between female and male patients (P>.05).Conclusions: Knowledge of the anatomical relationship between the maxillary sinus floor and the maxillary posterior teeth root tips is important for the preoperative treatment planning of maxillary posterior teeth. (Eur J Dent 2010;4:462-467)
Oral Health Attitudes and Behavior among a Group of Dental Students in Bangalore, India
Authors: Neeraja R , Kayalvizhi G , Sangeetha P 
Published: September 2019

ABSTRACTObjectives: To evaluate self-reported oral health attitudes and behavior among a group of dental students in Bangalore, India and to compare the oral health attitudes of students of different years of dental school. Methods: A self-administered questionnaire based on a modified version of the Hiroshima University Dental Behavior Inventory (HU-DBI) was administered to 250 dental students. Results: Significant differences (P<.05) were observed among students of different years in the degree of worrying about the color of the teeth, not having been to the dentist before and brushing each tooth carefully. Strongly significant differences (P<.001) were observed among students of different years in brushing the teeth twice daily, being satisfied with the appearance of the teeth, cleaning the teeth well without toothpaste, visiting dentist only when having a toothache, taking too much time to brush their teeth, worrying about having bad breath and using mouth rinse on a regular basis. Conclusions: Among dental students, the overall knowledge of oral health was good, even though there were deficits in knowledge in a few areas. The oral health attitudes and behavior of dental students improved with increasing levels of education. (Eur J Dent 2011;5:163-167)
Children’s Perception of Their Dentists
Authors: AlSarheed Maha 
Published: September 2019

ABSTRACTObjectives: The aim of this study was to assess school children’s feelings and attitudes toward their dentist. Methods: A questionnaire designed to evaluate children’s attitudes and preferences toward dentists was completed by 583 children (289 females, 294 males) with age range 9-12 years attending public schools. Results: 76% of the children who completed the questionnaire reported that they had been to the dentist before. Of the children who had visited the dentist, approximately 64% reported liking their visit, 11% didn’t like their visit, and 12% were afraid. 90% of the children preferred their dentist to wear a white coat, while 40% preferred them to wear a mask and protective eye glasses as protective measures during treatment. When asked to choose between two pictures of different clinical settings, 63% of the children indicated that they preferred a decorated dental clinic over a plain clinic. Fear of local anesthesia and tooth extraction were the most common reasons cited for not liking dental treatment. Conclusions: Children have strong perceptions and preferences regarding their dentists. Data collected for this study can be used by dentists to improve delivery of care. (Eur J Dent 2011;5:186-190)
Do Resin Cements Alter Action Potentials of Isolated Rat Sciatic Nerve?
Authors: Ertan Ahmet Atila , Beriat Nilufer Celebi , Onur Mehmet Ali , Tan Gamze , Cehreli Murat Cavit 
Published: September 2019

ABSTRACTObjectives: The purpose of this study was to explore the effects dual-cure resin cements on nerve conduction. Methods: Panavia F, RelyX ARC, and Variolink II polymerized either by light-emitting diode (LED) or quartz tungsten halogen (QTH) were used in the study (n=10). The conductance of sciatic nerves of 50 rats were measured before and after contact with the specimens for 1 h. Results: The time-dependent change in nerve conductance and the comparison of LED versus QTH showed that differences between groups are significant (P&.05). For both polymerization techniques, pair-wise comparisons of resin cements showed that the nerve conductance between groups is different (P&.05). RelyX ARC elicited irreversible inhibition of compound action potentials (more than 50% change) and Panavia F and Variolink II polymerized by LED and QTH did not alter nerve conduction beyond physiologic limits. Conclusions: Resin cements may alter nerve conductance and even lead to neurotoxic effects. (Eur J Dent 2011;5:199-205)
Nanoleakage for Self-Adhesive Resin Cements used in Bonding CAD/CAD Ceramic Material to Dentin
Authors: El-Badrawy Wafa , Hafez Randa Mohamed , El Naga Abeer Ibrahim Abo , Ahmed Doaa Ragai 
Published: September 2019

ABSTRACTObjectives: To determine nanoleakage of CAD/CAM ceramic blocks bonded to dentin with selfadhesive resin cement. Methods: Eighteen sound extracted human molars were sterilized and sectioned into 3 mm-thick dentin sections. Trilux Cerec Vitablocks (Vita) were also sectioned into 3 mm sections, surfacetreated using 5% hydrofluoric acid-etchant, and then coated with silane primer (Vita). Trilux and dentin sections were cemented together by means of three resin cements: Rely-X Unicem (3M/ ESPE), BisCem (Bisco), and Calibra (Dentsply), according to manufacturers' recommendations. Calibra was used in conjunction with Prime/Bond-NT adhesive (Dentsply), while the other two are self-adhesive. The bonded specimens were stored for 24h in distilled water at 37°C. Specimens were vertically sectioned into 1 mm- thick slabs, yielding up to six per specimen. Two central slabs were randomly chosen from each specimen making up the cement groups (n=12). Each group was subdivided into two subgroups (n=6), a control and a thermocycled subgroup (5-55°C) for 500 cycles. Slabs were coated with nail polish up to 1 mm from the interface, immersed in a 50% silver nitrate solution for 24h, and tested for nanoleakage using Quanta Environmental SEM and EDAX. Data were statistically analyzed using two-way ANOVA and Tukey's post-hoc tests. Results: Rely-X Unicem and Calibra groups demonstrated no significant difference in the percentage of silver penetration, while the BisCem group revealed a significantly higher percentage (P≤.05). Thermocycling (500 cycles) did not have a statistically significant effect on the percentage of silver penetration (P>.05). Conclusions: One self-adhesive-resin cement demonstrated a similar sealing ability when compared with a standard resin cement. Thermo-cycling did not significantly increase dye penetration under the test conditions. (Eur J Dent 2011;5:281-290)
Resolution of Anterior Scleritis after Periodontal Therapy
Authors: Guncu Guliz Nigar , Caglayan Feriha 
Published: September 2019

ABSTRACTScleritis is a chronic inflammation that involves the outermost coat and the skeleton of the eye. Scleritis may be associated with a systemic or immune mediated disease and it might be caused by an infection, trauma or drug reaction. This case presents a patient with generalized chronic periodontitis and anterior diffuse scleritis. A 30-year-old female complained of pain and persistent scleritis in the left eye was referred to the Periodontology department due to her periodontal problems. She was treated with oral non steroidal anti-inflammatory drugs and topical medications (corticosteroid) for her scleritis during last two years. However, these treatments failed to control the progression of the disease. After periodontal examination, deep periodontal pockets and serious bone loss was detected radiographically. She was treated by flap procedures and 3 teeth were extracted. After a 4-month healing period, scleritis was resulted in rapid resolution. (Eur J Dent 2011;5:337-339)
The Frequency and Characteristics of Mesiodens in a Turkish Patient Population
Authors: Kazanci Fatih , Celikoglu Mevlut , Miloglu Ozkan , Yildirim Hanifi , Ceylan Ismail 
Published: September 2019

ABSTRACTObjectives: The aim of this study was to investigate the frequency and characteristics of mesiodens among a group of orthodontic patients in Turkey. Methods: A retrospective study was performed using panoramic radiographs of 3,351 patients ranging in age from 8 to 16 subjected to dental treatment in the Department of Oral and Maxillofacial Radiology and Department of Orthodontics (Erzurum, Turkey) between 1996 and 2008. All medical and demographic data (age and sex) were obtained from the files. Descriptive characteristics of mesiodentes, including number, shape, position, complication caused by mesiodens and treatment were recorded. The Chi-squared test was used. Results: Results show that the frequency of mesiodens was 0.3% with the ratio of boys (6 cases) to girls (4 cases) being 1.5:1 and this was not statistically significant (P>.05). Of the 10 children, 8 (80.0%) had 1 mesiodens and 2 (20.0%) had 2 mesiodentes bilaterally to midline. Of the 12 mesiodentes, 8 (66.7%) were fully impacted, 7 (58.3%) in a vertical position and 9 (75.0%) conical shape. The most common complication caused by mesiodens was delayed eruption of the permanent incisors in 4 cases (40.0%). Conclusions: The frequency of mesiodens in Turkish orthodontic patients was found to be 0.3% and more frequently in males with the ratio being approximately 1.5:1. Most of the mesiodentes were in conical shape (75.0%). Sixty-seven percent of the cases were fully impacted. (Eur J Dent 2011;5:361-365)
Evaluation of the Restoration Success of Endodontic Therapy of the Primary Molars
Authors: Kirzioglu Zuhal , Gungor Ozge Erken , Ciftci Z Zahit 
Published: September 2019

ABSTRACTObjectives: The aim of this study was to evaluate the clinical and radiographic success rates of pulpotomized primary molar teeth restored with a compomer material with using United States Public Health Service (USPHS) criteria. Methods: In 173 primary molars of 156 child patients, aged within 4-9 years (mean age: 6.1±1.4 years), conventional pulpotomy treatment were performed. The teeth treated using calcium hydroxide, formocresol or ferric sulphate. After pulpotomy procedure, teeth were restored with compomer material. The teeth were evaluated as clinically and radiographically during a period of 12-24 months. Both of success of pulpotomy treatment and also restorative material (compomer material) were evaluated during follow-up period. The data were assessed with chi-square test. Results: At the end of the first year, 45% of initial treated teeth were checked, but only 18% were checked at the end of the second year. The first year success rates in the groups treated with CH, FC, and FS were 87.5%, 95%, and 79%, respectively, and, as the number of controllable patients was lower, the success rates on available teeth were determined to be 88.3% and 80%, respectively, according to the materials at the end of the second year. Restorations having been made, they were analyzed in accordance with USPHS criteria. Conclusions: At the end of the first year, 67.5% of compomer restorations were detected to be original and healthy and at the end of the second year, 57% were deemed healthy. No statistically significant relationships were found between marginal adaptation, secondary caries and pulpotomy success (chi-square test, P>.05). Among the three groups, there is no significant difference in terms of success. The least successful age group was defined as 4-6 years. (Eur J Dent 2011;5:415-422)
Evaluation of the Immediate Dentofacial Changes in Late Adolescent Patients Treated with the ForsusTM FRD
Authors: Gunay Esen Ali , Arun Tulin , Nalbantgil Didem 
Published: September 2019

ABSTRACTObjectives: The purpose of this study was to evaluate the short-term dentoalveolar and soft tissue changes in late adolescent patients treated with the ForsusTM FRD. Methods: A prospective study was carried out on 54 lateral cephalometric radiograms that were taken before placement and after removal of the appliance in the treatment group (15 subjects) and at the beginning and six months after in the control group (12 subjects). The patient selection criteria were as follows: skeletal and dental Class II malocclusion due to retrognatic mandible, normal or low-angle growth pattern, post-peak growth period, no extracted or congenitally missing permanent teeth, and minimum crowding in the lower dental arch. Results: The statistical assesment of the data suggested the following results: No sagital and vertical skeletal changes were induced. The mandibular incisors were protruded and intruded, while the maxillary incisors were retruded and extruded. The occlusal plane was rotated in clockwise direction as a result of these dentoalveolar changes. Overbite and overjet were reduced in all patients. Soft tissue profile slightly improved. Conclusions: The results revealed that, in late-adolescent patients ForsusTM FRD corrected Class II discrepancies through maxillary and mandibular dentoalveolar changes. (Eur J Dent 2011;5:423-432)
Apert syndrome: A case report
Authors: Ileri Zehra , Goyenc Yasar Bedii 
Published: September 2019

ABSTRACTThe purpose of this report is to present Apert syndrome patient by highlighting craniofacial characteristics and orthodontic approach to treatmentThe patient, a 16-day-old female and the second child of healthy parents, was admitted to our department with primary complaint of cleft palate. She had a cone-shaped calvarium, midface hypoplasia, syndactyly of the hands and feet, hypertelorism, proptosis and cleft palate. After taking maxillary impression, an acrylic appliance was applied to orientate the growing and enable the feedingA case with Apert syndrome undergoes the orthodontic treatment for a long time and also a multidisciplinary approach is essential to determine the best collaborative corrective plan for the deficiencies of the patient. (Eur J Dent 2012;6:110-113)