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    Clinical Evaluation of Complications for Single Visit Class III and Class V Restorations at the First Recall Appointment
    (Marmara Univ, Inst Health Sciences, 2025) Kaya, Bengu Dogu; Korkut, Bora; Ozturk, Ezgi Kizil; Alkan, Elif; Atali, Pinar Yilmaz
    Objective: Clinical evaluation of senior students' Class III and Class V restorations at the first recall (control) appointment, regarding revised FDI criteria. Methods: Seventy-six anterior Class III and V restorations were assessed. A nano-ceramic, simplyshade composite (NeoSpectra-ST, Dentsply) was used. Restorative procedures were checked and approved by an experienced (3 years) restorative dentistry instructor. The first recall (control) appointment was scheduled 1 week after the restorations and a restorative instructor re-evaluated the restorations based on the biological, functional, and esthetic aspects of revised FDI criteria. Results: Significantly greater scores were observed for Esthetic criteria compared to Functional and Biological criteria (p<.001). Six failures were detected forform and contour, two for surface luster and texture, two for marginal staining, and two for color match. Onlyfortheform and contour criteria, Class V restorations obtained significantly higher scores than Class III (p=.033). Conclusion: Although anterior composite restorations were approved by an experienced instructor, various irreversible complications were observed at the first recall. Following the restorative procedure, a control appointment shortly is considered mandatory. The highest risk for failure was detected for Esthetic criteria. Class III restorations are considered more prone to failures compared to Class V.
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    Diastema Closure Following Detection and Removal of Residual Resins After Orthodontic Treatment: Case Report with 1-year follow-up
    (Marmara Univ, Inst Health Sciences, 2025) Kaya, Bengu Dogu; Atali, Pinar Yilmaz; Sever, Deniz Meltem; Tagtekin, Dilek
    This case report aimed to determine and remove the residual resins after debonding, to restore the upper lateral teeth with a single shade composite to evaluate with follow-ups. An 18-year-old female patient applied to our clinic with the complaint of the presence of diastemas. Following the sond marking technique, MDP (Smile Lite, Smile Line) and mobile phone (iPhone 11, Apple); DSLR camera (Nikon), macro lens and D-Light caries detection mode (GC) before and after the application of plaque disclosing gel (TriPlaque ID, GC) to detect resin residues on tooth surfaces after bracket removal. The residual resins were removed with finishing and polishing discs (last 3 stages) (OptiDisc, Kerr). One week later, the selective-etch technique, universal adhesive (Gluma Bond Universal, Kulzer), and single shade composite (Charisma Diamond One, Kulzer) were used for diastema closure. The patient was called for follow-up at 3, 6, and 12-months and evaluated FDI criteria. Residual resins were best determined by using a combination of plaque disclosing agent and MDP since the composite used was not a fluorescent light-emitting material. For restorations, FDI 1and 2 scores were observed in the esthetic, functional, and biological evaluations.
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    Effect of Print Orientation and Thermal Aging on the Flexural Strength of Zirconia-Reinforced Three-Dimensional-Printed Restorative Resin Materials
    (Mdpi, 2025) Ozden, Yunus Emre; Kaya, Bengu Dogu; Atali, Pinar Yilmaz; Ozer, Fusun; Kayahan, Zeynep Ozkurt
    This study evaluated the effects of print orientation and thermal aging on the flexural strength (FS) and flexural modulus (FM) of novel permanent three-dimensional (3D)-printed polymethyl methacrylate (PMMA) resins reinforced with nano-zirconia and nano-silica. Bar-shaped specimens (25 x 2 x 2 mm) were fabricated using a digital light processing (DLP) 3D printer (Asiga Max UV, Asiga Inc., Australia) in two orientations (0 degrees and 90 degrees). Specimens underwent three-point bending tests at 24 h and after artificial thermal aging (10,000 and 30,000 cycles) to simulate one and three years of intraoral conditions. Scanning electron microscopy (SEM) was used to analyze fracture patterns. Print orientation did not significantly affect FS or FM (p > 0.05). However, artificial aging significantly reduced FS and FM after 10,000 cycles (p < 0.001), with further deterioration after 30,000 cycles. The micro hybrid resin composite exhibited higher FS than the 3D-printed materials throughout aging. SEM analysis revealed distinct fracture patterns, with 3D-printed resins displaying radial fractures and the micro hybrid composite exhibiting horizontal fractures. These findings indicate that aging plays a more critical role in the long-term mechanical performance of 3D-printed restorative resins than print orientation. This study provides original data on the effects of print orientation and prolonged thermal aging on the mechanical behavior of permanent three-dimensional (3D)-printed dental resins. Furthermore, the comparative evaluation of aging protocols simulating one and three years of intraoral service represents a novel contribution to the existing literature. Further studies are required to optimize the mechanical durability of 3D-printed dental restorations.
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    Evaluation of dental students' attitude to elderly patients based on demographic data: a cross-sectional study
    (Bmc, 2025) Gencer, Buesra Karabulut; Senol, Ayse Asli; Kaya, Bengue Dogu; Atali, Pinar Yilmaz; Tarcin, Bilge
    BackgroundComprehensive curricular modifications in dental education are essential to address the healthcare needs of the growing geriatric population. In this context, incorporating attitudes of dental students towards this complex patient group into the design of educational programs is crucial for developing effective curricula. The aim of this study was to evaluate the attitudes of dental students towards elderly patients during their educational progress, which is a crucial period in the formation of dentists' approaches to patients and treatment, and to consider the influence of demographic data in this process.MethodsIn this cross-sectional study, a two-part questionnaire was administered to 3rd-, 4th-, and 5th-year students at Marmara University, Faculty of Dentistry. The first part collected demographic data on age, gender, place of residence, presence of grandparents, and history of living with grandparents. The second part used the validated Ageism Scale for Dental Students (ASDS) with 5 items on a 6-point Likert scale. Mann-Whitney U and Kruskal-Wallis tests were used for two- and multi-group comparisons, respectively, and the Spearman Correlation Test examined age-scale score relationships. A Type 1 error rate of 0.05 was applied.ResultsA total of 305 students participated, 204 (66.9%) of whom were female. The distribution across the 3rd, 4th, and 5th years was 35.1%, 32.1%, and 32.8%, respectively. The median ASDS score was 3.2. No significant differences in ASDS scores were found concerning age (p = 0.925), gender (p = 0.631), year of study (p = 0.581), place of residence (p = 0.282), presence of grandparents (p = 0.199), or history of living with grandparents (p = 0.859).ConclusionDemographic factors did not significantly affect ASDS scores. Larger, translated, and validated studies in different regions of T & uuml;rkiye are needed. However, the neutral attitudes observed among students suggest that the content of geriatrics in dentistry education should be strengthened in a way that promotes positive attitudes towards elderly patients.