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Öğe A comparison of the accuracy of Willems' and Cameriere's methods based on panoramic radiography(Elsevier Ireland Ltd, 2019) Ozveren, Neslihan; Serindere, Gozde; Meric, Pamir; Cameriere, RobertoTooth development evaluation is majorly the current approach to identify age and maturity. Dental age (DA) is therefore considerably emphasized in forensic and pediatric dentistry. The aim of this study was to assess the applicability of Willems and Cameriere methods for Turkish children. Panoramic images of 636 Turkish healthy children (319 male; 317 female) aged between 6 and 15 years were assessed. DA of the subjects was determined by using Willems and Cameriere methods. The seven right and left permanent lower teeth were valued using these two methods. The mean chronological age (CA) of the subjects was 11.53 +/- 2.25 (min:6, max:14.99) years (boys: 11.29 +/- 2.34 years, girls: 11.77 +/- 2.15 years). Willems method overestimated the CA (p <= 0.001), in contrast, Cameriere method underestimated the CA (p <= 0.001) for both sexes. In different age groups the mean difference between the CA and DA calculated by Cameriere method (CA-DA) ranged from 0.86 to -0.41 years for boys and from 1.00 to -0.21 years for girls, while the mean difference between the CA and DA calculated by Willems method ranged from -0.26 to -0.71 years for boys and from 0.19 to -0.76 years for girls. Cameriere method provided a better percentage of accuracy (84.6% and 77.3% for males and females, respectively) in the absolute difference values within 1 year compared to Willems method. Cameriere method performed slightly better but, both methods may be used for DA estimation in the Turkish population. (C) 2019 Elsevier B.V. All rights reserved.Öğe Effect of Acid Etching and Er: YAG Laser Enamel Conditioning on the Microleakage of Glass Carbomer Fissure Sealants(Univ Indonesia, Fac Dentistry, 2020) Ozveren, Neslihan; Uslu, Yesim Sesen; Donmez, NazmiyeObjective: This study aimed to evaluate the effects of Er:YAG laser used alone or in combination with acid etching as surface conditioners on the microleakage of a glass carbomer fissure sealant for permanent molar teeth. Methods: Forty sound human permanent molar teeth were randomly divided into four experimental groups based on enamel etching methods: group I, no surface conditioning; group II, 37% phosphoric acid etching; group III, Er:YAG laser etching; and group IV, sequential laser etching and acid etching. After surface conditioning procedures were conducted, the teeth were sealed with a glass carbomer seal. The teeth were subjected to thermocycling with 2500 cycles at 5 +/- 2 degrees C to 55 +/- 2 degrees C for 24 h. Subsequent microleakage was assessed via dye penetration under a stereomicroscope. Results: Group II showed the lowest microleakage scores. Groups III and IV exhibited similar score distribution, which was lower than that of group I. Conclusions: Laser etching and acid etching decrease the microleakage probability of glass carbomer sealants, and acid etching alone provides a more suitable surface for these sealants. Sequential laser etching and acid etching have no additional benefit in comparison with acid etching alone and yield worse results than those of the other tested methods.Öğe Effect of Disposable Sheaths on the Vickers Microhardness of Resin Composites(Marmara Univ, Inst Health Sciences, 2021) Atay, Meltem Tekbas; Dindar, Mediha Buyukgoze; Ozveren, NeslihanObjective: The aim of this study was to evaluate the effect of disposable sheaths on microhardness of resin composites. Methods: A total of 40 resin composite specimens were fabricated with disc-shaped perspex molds (5x2 mm). Specimens were divided into 4 groups: Irradiated by 1-Elipar LCU (EL), 2-Elipar LCU with sheath (ELS), 3-Valo LCU (VL), 4-Valo LCU with sheath (VLS), (n=10). The specimens were subjected to surface microhardness (SMH) test (Tronic, Digital Microhardness Tester DHV-1000) on the top and bottom surfaces under 200 g load applied for 10 s with a Vickers indenter. The specimens were stored in the distilled water at 37 degrees C for 24 hours and the same measurements were repeated. One-way ANOVA test, Tukey and Tamhane post-hoc tests were used for intergroup comparisons. Also paired sample t-test was used for comparisons of the different time results. Results: According to the 1st-hour data from the top and bottom SMH measurements, EL and VL groups have significantly higher microhardness values than VLS and ELS groups (p<0.05). There was a dependent change in the top surface measurements with the time (p=0.000), but also interaction with the LCU (p=0.000). All groups showed significant microhardness decrease from 1st to 24th-hour for both top and bottom values (p<0.05) except for top SMH of VLS group (p=0.151). Conclusion: Disposable sheaths decreased the light output of the LCU's and caused reduction in the SMH. Although they are effective in preventing cross-infection, they significantly reduced the polymerization efficiency, thereby mechanical properties of resin composites.Öğe Effect of Mouthrinses on Water Sorption and Solubility of Flouride-Releasing Restorative Materials(Bezmialem Vakif Univ, 2021) Ozveren, Neslihan; Baltaci, Ezgi; Batur Kara, SinemObjective: This study aimed to investigate water sorption/solubility behavior of glass ionomer cement-based-containing restorative materials. Methods: A total of 21 specimens for each material (Riva Self Cure. Riva Light Cure, GCP Glass Fill) were prepared using a teflon ring (10x2 mm). These specimens were stored in a desiccator for 24 hours at 37 +/- 1 degrees C and the weight of each sample was measured using a sensitive balance. Afterwards, the specimens were stored in an incubator containing distilled water, mouthrinse with alcohol, and mouthrinse without alcohol at 37 +/- 1 degrees C for one day. The specimens were later dried to a constant mass in a desiccator, and each specimen was measured using a digital electronic caliper. Data were statistically analyzed (p<0.05). Results: Data were evaluated using one-way ANOVA and post-hoc Tukey tests. Water sorption values were found to be significantly higher for the resin-modified glass ionomer cement group than for the high-viscosity glass ionomcr cement (HVGIC) group in all the three different media (p<0.05). HVGIC material showed similar water sorption values for all three media. Conclusion: Compositions of restorative materials play key roles in their water sorption/solubility in different areas.Öğe Effectiveness of an educational cartoon animation on the knowledge of children about traumatic dental injuries(Wiley, 2022) Ozveren, Neslihan; Yildirim, SinemBackground/Aim: Although children are frequently exposed to traumatic dental injuries (TDIs), their knowledge and attitude regarding the emergency management of TDIs are largely insufficient. The aim of this study was to determine the knowledge of children about TDIs utilizing a questionnaire before and after watching a custom animated instructional video. Material and Methods: The study was conducted with 332 children aged 8 to 13 years. The children were asked to complete a 3-part questionnaire that included socio-demographic data, past experiences related to TDIs, and knowledge of the emergency management of TDIs. An educational video containing evidence-based information about the management of TDIs was shown to the children. They then completed the questionnaire again immediately after viewing the video and 1 week later. The data were analyzed using Friedman's two-way ANOVA by ranks test, McNemar's test, and the Mann-Whitney U-test. Results: The children's scores increased significantly following the viewing of the video (p = .0001). Prior to watching the animation, children who had previously received dental trauma education had considerably higher scores than their peers (p = .004). The animation was considered to be beneficial by 96.7% of the children. Prior to watching the animation, 49.1% of the children believed they could help their friends in the event of dental trauma, and after viewing the animation, this rate increased to 86.4%, but decreased to 77.1% after 1 week (p < .001). Conclusions: After watching the video, the children's scores improved dramatically and their self-confidence in helping their friends in the event of dental trauma increased.Öğe Evaluation of causes of primary tooth extraction by age and gender in pediatric patients admitted to a university hospital(Kerman Univ Medical Sciences, 2021) Ozveren, Neslihan; Sisman, Kubra Yaman; Baltaci, EzgiBACKGROUND AND AIM: Determining the reasons for the extraction of primary teeth is of high importance for countries in terms of taking precautions while establishing their health policies. The aim of this study was to investigate the main causes of primary tooth extraction and the most commonly extracted tooth type in children aged 0-13 years. METHODS: The records of patients aged 0-13 years admitted to the Department of Pediatric Dentistry, School of Dentistry, Trakya University, Edirne, Turkey, between 2016 and 2020 were collected. The patients' age, gender, number of extracted teeth, and causes of extraction were analyzed retrospectively. Data were analyzed using SPSS software. Descriptive statistics and Mann-Whitney U, independent samples t-test, Welch ANOVA with post-hoc Tamhane, and Pearson's chi-square test were used for analyses. Statistical significance was considered at P < 0.05. RESULTS: In this study, 3076 deciduous teeth of 1363 pediatric patients aged 0-13 years (mean age of 7.8 +/- 2.1 years) were evaluated. No difference was found between the genders in terms of the number of extractions (P = 0.489). The most common reasons for extraction were caries and mobility/root resorption, which constituted 55.1% and 42.4% of the extractions, respectively. CONCLUSION: In this study, the teeth extraction in patients aged 0-13 years were investigated. Dental caries (55.1%) was the most common cause of deciduous teeth extraction. Moreover, it was the most common reason for deciduous teeth extraction in the age groups of 0-5 and 6-9 years. Primary molar teeth were the most commonly extracted teeth. Although there was no significant difference between genders, striking results were recorded regarding teeth types in different age groups. According to the results obtained in this study, steps should be taken regarding the implementation of preventive dentistry programs.Öğe Evaluation of maxillary sinusitis from panoramic radiographs and cone-beam computed tomographic images using a convolutional neural network(Korean Acad Oral & Maxillofacial Radiology, 2022) Serindere, Gozde; Bilgili, Ersen; Yesil, Cagri; Ozveren, NeslihanPurpose: This study developed a convolutional neural network (CNN) model to diagnose maxillary sinusitis on panoramic radiographs (PRs) and cone-beam computed tomographic (CBCT) images and evaluated its performance. Materials and Methods: A CNN model, which is an artificial intelligence method, was utilized. The model was trained and tested by applying 5-fold cross-validation to a dataset of 148 healthy and 148 inflamed sinus images. The CNN model was implemented using the PyTorch library of the Python programming language. A receiver operating characteristic curve was plotted, and the area under the curve, accuracy, sensitivity, specificity, positive predictive value, and negative predictive values for both imaging techniques were calculated to evaluate the model. Results: The average accuracy, sensitivity, and specificity of the model in diagnosing sinusitis from PRs were 75.7%, 75.7%, and 75.7%, respectively. The accuracy, sensitivity, and specificity of the deep-learning system in diagnosing sinusitis from CBCT images were 99.7%, 100%, and 99.3%, respectively. Conclusion: The diagnostic performance of the CNN for maxillary sinusitis from PRs was moderately high, whereas it was clearly higher with CBCT images. Three-dimensional images are accepted as the gold standard for diagnosis; therefore, this was not an unexpected result. Based on these results, deep-learning systems could be used as an effective guide in assisting with diagnoses, especially for less experienced practitioners.Öğe Evaluation of Orbit Vector Relationships in Different Types of Skeletal Malocclusions(Galenos Publ House, 2022) Garip, Ruveyde; Meric, Pamir; Ozveren, Mehmet; Ozveren, NeslihanObjective: This study aimed to determine the orbit vector relationships between different types of malocclusion supported by cephalometric analysis. Materials and Methods: This retrospective study was conducted on 69 patients who were diagnosed with orthodontic malocclusion. Demographic information, such as age and gender, were provided from the medical records of the patients. Cephalometric analysis was performed by an expert orthodontist to determine the anteroposterior skeletal relationship. The orbit vector relationship was evaluated by digital patient photographs taken by the Frankfort horizontal plane by two different ophthalmologists. Results: The mean age of the patients was 14.58 +/- 3.95 (range, 8-28) years. Forty-five (65.2%) of the patients were female and 24 (34.8%) were male. Positive orbit vector patients had significantly higher SNA measures and ANB readings than negative orbit vector patients (pSNA=0.014, pANB=0.001). There was no difference in orbit vector status between Class I and II malocclusion groups (p=0.580). Negative vectors were more common in the Class III group than in the Class I (p=0.039) and Class II (p=0.004) groups. Conclusion: The majority of patients in the Class I and II groups had a positive orbit vector, whereas patients in the Class III group had a negative orbit vector relationship.Öğe Evaluation of Pediatric Patient's Age, Behaviors, and Reasons for the First Dental Visit in Edirne, Turkey: a Cross-Sectional Study(Univ Costa Rica, Fac Odontologia, 2021) Ozveren, Neslihan; Serindere, Gozde; Baltaci, EzgiOral and dental health are vital parts of general baby health, and early dental visits provide significant prevention-focused intervention and parental counseling regarding oral health. Evaluating the age and main complaints of children is therefore important during their first dental visit (FDV). The purposes of this study were to determine the age, reason for the visit, behavioral response, and caries status at the FDV and to evaluate the factors affecting these parameters. Parents of 325 pediatric patients (159 males; 166 females; mean age 7.20 +/- 2.78 years) at their FDV were asked to fill out a questionnaire requesting sociodemographic information and their child's medical history, brushing habits, and reasons for attending dental consultation. The decayed-missing-filled-teeth ( dmft/DMFT) scores were also recorded. The child's behavioral responses during the FDV were evaluated according to Frankl's Behavior Rating Scale (FBRS). Higher maternal education level and dmft/DMFT score were associated with earlier FDV age. The most common reason for the FDV was dental caries in 33.5% of patients, followed by toothache (29.5%). Most of the children showed positive behavior (46.7%), with positive behavior affected by age and negative behavior affected by the dmft/DMFT score and distance from home. The mean dmft/DMFT score was 8.1 +/- 4.4 and was negatively affected by toothbrushing frequency and family income. These study results indicate that Turkish children living in Edirne present at a late age for the FDV. Raising awareness in terms of dental health care among parents is important to ensure that children attend their FDV at an early age.Öğe Evaluation of third molar agenesis associated with hypodontia and oligodontia in turkish pediatric patients(Istanbul Univ Press, Istanbul Univ Rectorate, 2020) Atay, Meltem Tekbas; Ozveren, Neslihan; Serindere, GozdePurpose To evaluate the association between third molar (M3) agenesis and hypodontia and oligodontia in pediatric patients by using panoramic radiography. Materials and Methods Panoramic radiographs of 1,471 patients (899 females; 572 males) and 5,884 teeth were retrospectively evaluated. The age and gender of the patients were recorded. Patients ages 9-15 years old were included in the study. The mean age was 12.76. The agenesis of M3 teeth and the relationship between M3 agenesis and hypodontia and oligodontia were recorded according to findings from the upper and lower jaw, in both the right and left locations, along with the number of M3 with agenesis. Data were analyzed using chi-square and McNemar tests (p<0.05). Results A total of 1,319 (89.7%) patients had all M3 teeth present in the mouth, while the other 152 (10.3%) had congenital agenesis in one or more teeth. The number of teeth in which M3 agenesis was seen, in order of the number of missing M3 teeth, the percentages were 2.6% for one, 2.4% for two, 1.0% for three and 4.3% for four missing teeth.Hypodontia was detected in 37 patients and oligodontia was detected in 3 patients. Conclusion The prevalence of M3 agenesis varies from one population to another. Two of the dental anomalies associated with M3 agenesis are hypodontia and oligodontia. In this study, M3 agenesis varied in terms of region and gender; hypodontia was also significantly higher in patients with missing mandibular M3.Öğe Gingival Enlargement in Patients who Have Undergone Renal Transplants: A Meta-Analysis(Univ Indonesia, Fac Dentistry, 2018) Serindere, Gozde; Ozveren, NeslihanSevere gingival enlargement (GE) is one of the most commonly observed adverse effects in patients who have undergone renal transplants due to the use of cyclosporine A. Objectives: We aimed to gain more insight into the prevalence of GE in patients with renal transplants. Methods: We searched the PubMed and Web of Science databases for relevant studies from January 1990 to January 2018. Using random effects models, we calculated summary incidence rates and 95% confidence intervals (CIs). Results: A total of 595 patients from 10 studies were included. Patients using cyclosporine A with or without any other drugs had a 62.6% (95% CI, 41.9%-79.5%) incidence of GE. Subgroup analysis according to diagnostic criteria showed that the incidence of GE was lower when using well-defined diagnostic criteria or scoring system. The incidence of GE was 88.2% (95% CI, 80.9%-93.0%) in patients using cyclosporine A with nifedipine. Cyclosporine A without nifedipine was associated with a significantly decreased risk of GE incidence when compared with the combination of cyclosporine A and nifedipine (odds ratio: 0.198; 95% CI, 0.083-0.473; P < 0.001). Conclusions: It is important for all clinicians to know the effects of the aforementioned drugs and the treatment options.Öğe Microhardness and SEM-EDX Analysis of Permanent Enamel Surface Adjacent to Fluoride-releasing Restorative Materials Under Severe Cariogenic Challenges(Quintessence Publishing Co Inc, 2018) Ozveren, Neslihan; Ozalp, SerifePurpose: In this study, the protective effects of restorative materials with fluoride content, resin-modified glass-ionomer cement (RMGIC), giomer, and glass carbomer against artificial initial caries lesions in a simulated highly cariogenic oral environment were evaluated. Considering the reported recharging abilities of these restorative materials, fluoridated toothpaste was applied to some groups, in which the anti-demineralising effect was also evaluated. Materials and Methods: Two enamel blocks were produced from each of 60 sound permanent molars. Sixty specimens were used for microhardness analysis, and the rest were used for SEM-EDX analysis. Enamel specimens were randomly assigned to three groups according to the restorative material: A = resin-modified glass-ionomer cement; B = giomer; C = glass carbomer. Artificial initial caries lesions were created using demineralising solutions, after which specimens were exposed to in vitro pH cycling simulating a highly cariogenic oral environment. Microhardness and mineral analyses were performed on the enamel surrounding the restorative materials at three different times during the experiment: at the beginning of the experiment, then after the creation of the artificial early caries lesions, and finally after pH cycling. Results: Microhardness and SEM-EDX results mostly confirmed each other. RMGIC and glass carbomer groups with added fluoride toothpaste showed statitsically significantly better anti-demineralising effects in comparison to other groups. Neither of the giomer groups performed as well as RMGIC or glass carbomer. Conclusion: Because of the similarity between the demineralisation inhibitory activity of glass carbomer and RMGIC, glass carbomer may be preferred as a restorative material in paediatric dentistry.
