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    The effect of periodontal prophylaxis procedures on the surface properties of tooth-colored restorative materials
    (Iop Publishing Ltd, 2022) Acikgoz-Alparslan, Ece; Buyukgoze-Dindar, Mediha; Tekbas-Atay, Meltem
    This study aimed to investigate the effect of various periodontal hygiene procedures on the surface properties of direct and indirect restorative materials. Disc-shaped specimens (10 x 2 mm) of FC: Flowable Composite, UC: Universal Composite, IC: Indirect Composite, CC: CAD/CAM Composite were fabricated (n = 70) and divided randomly into subgroups: 1-Control, 2-US: Ultrasonic scaling, 3-RP: Rubber-cup polishing, 4-AP: Air-polishing, 5-US+RP, 6-US+AP, 7-US+AP+RP. The color, surface roughness, and gloss measurements were performed. Data were analyzed with variance analysis and the correlation coefficient was used to evaluate the relationship between surface properties (p < 0.05). The highest and lowest roughness values were obtained in FC after US and CC's control group, respectively. The surface roughness of FC, IC, and CC was significantly affected by the application of various prophylaxis procedures (p < 0.05). AP and US+AP+RP presented the least and most affected surface roughness, respectively. The lowest surface gloss value was in the US and RP subgroups of FC. The process that the least reduced the surface gloss was AP. Material and procedure affected the color stability (p < 0.05) except for CC. The highest Delta E values were obtained in US+AP+RP subgroups. Indirect restorative materials showed less roughness and color change as well as higher gloss values after all periodontal prophylaxis procedures. The use of air-polishing has proven to be a reliable periodontal hygiene approach for direct and indirect restorations due to the less deterioration in the surface properties.
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    Evaluation of Radicular Dentin Thickness in Maxillary and Mandibular Central Incisor, Canine, and Premolar Teeth
    (Springernature, 2024) Arili-Ozturk, Esra; Buyukgoze-Dindar, Mediha
    Background This study aimed to compare the radicular dentin thickness in single -rooted maxillary and mandibular anterior and premolar teeth by measuring on four different surfaces (buccal, lingual, mesial, and distal) at three different levels (apical, middle, and coronal). Methods A total of 150 single -rooted human anterior and premolar teeth were included in the present study. The teeth were sectioned at the cemento-enamel junction (CEJ; coronal), 4 mm away from the apex (apical), and the midpoint between these two distances (middle). First, the teeth were divided buccolingually into two parts, and the dentin thickness in the mesial/distal region was measured. Subsequently, both parts were divided again to measure the dentin thickness in the buccal/lingual region. All measurements were recorded, and statistical analysis was performed. Results Apical radicular dentin thickness was significantly less than CEJ (p < 0.001). The maxillary central incisor, maxillary, and mandibular canine exhibited the maximum radicular dentin thickness, whereas the mandibular premolars showed the minimum. Radicular dentin thicknesses on the lingual and buccal surfaces were significantly higher than those on other surfaces (p < 0.001). Conclusion The lowest radicular dentin thickness values were observed in the premolars, especially on mesial and distal surfaces. Considering these areas as danger zones and paying attention during dental procedures are essential to avoid possible complications.
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    Investigation of the Effect of the COVID-19 Pandemic on Anxiety Levels and Career Satisfaction of Dentistry Students
    (Univ Indonesia, Fac Dentistry, 2024) Kir, Furkan; Bayrak, Ata Batuhan; Buyukgoze-Dindar, Mediha
    Objective: This study aimed to investigate the effect of the COVID-19 pandemic on the anxiety levels and career satisfaction of dentistry students. Methods: A total of 220 dentistry students were included in the study. A questionnaire was mailed to dentistry students at Trakya University between June 2021 and January 2022. Beck Anxiety Inventory (BAI) was used to evaluate anxiety levels. Data were analyzed, and p < 0.05 was considered statistically significant. Results: The mean BAI scores of the participants were 14.6 +/- 13.6. The anxiety levels of the females were significantly higher than the males (p = 0.004). There was a significant relationship between the level of knowledge about COVID-19 and anxiety (p = 0.032). More than half of dentistry students were anxious about the pandemic conditions and concerned about being infected during treatment. Moreover, most participants were anxious about infecting their patients and families, yet 86.8% do not regret choosing dentistry as a profession. Conclusion: An increase was observed in the anxiety levels caused by the pandemic in dentistry students. The outcomes of the current study revealed that the COVID-19 pandemic affected female dental students more. Although the COVID-19 pandemic negatively affected the psychological health of dental students, most participants were satisfied with their careers.
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    Investigation of the prevalence of impacted third molars and the effects of eruption level and angulation on caries development by panoramic radiographs
    (Medicina Oral S L, 2022) Yildirim, Handan; Buyukgoze-Dindar, Mediha
    Background: This study is aimed to determine the prevalence of impacted third molars and to investigate the effects of their eruption level and angulation on caries formation in the distal of the adjacent tooth. Material and Methods: This cross-sectional study was conducted on panoramic radiographs of 38481 patients who were admitted to the Trakya University, Faculty of Dentistry. The panoramic radiographs of 7998 patients with at least one impacted third molar were included. Third molars were classified according to Winter's classification and Pell and Gregory's classification. The frequency of caries in partially impacted third molars and adjacent second molars was determined. The chi-square tests were used to determine potential associations between the third molars' level of eruption, angulation, and caries development. Results: The study group consisted of 4423 females (55.3%) and 3575 males (44.7%) with a mean age of 36.3 +/- 13.4 years. The prevalence of the third molar impaction rate was 23%. The impaction pattern of partially erupted third molars was characterized by an eruption level of A with the vertical position in both jaws. Partially erupted and vertically placed maxillary third molars in the level of position A caused more caries in the adjacent tooth and mesioangularly located partially erupted mandibular third molars were associated with more caries in the adjacent tooth. Conclusions: The angulation and eruption level of partially erupted third molars should be carefully examined. The prophylactic extraction of vertically and mesioangularly located third molars, especially with an eruption level of position A can be suggested to eliminate the related complications and risk of caries.
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    nZ Prevalence of Dental Anomalies Assessed Using Panoramic Radiographs in a Sample of the Turkish Population
    (Quintessence Publishing Co Inc, 2022) Buyukgoze-Dindar, Mediha; Tekbas-Atay, Meltem
    Objective: To determine the prevalence, frequency and distribution of dental anomalies that were detectable on panoramic radiographs in a large sample Turkish population, and the associations among the anomalies.Methods: This study was conducted retrospectively on panoramic radiographs of 43,880 patients who were admitted to the Faculty of Dentistry at Trakya University, Edirne, Turkey. Patients 'files were examined by two observers and radiographic images of2265patients with at least one dental anomaly were included. Dental anomalies were classified as anomalies in the number, structure, position and shape of teeth. The interactions between the groups were analysed using chi-square tests.Results: The study group consisted of 1336women (59%) and 929 men (41%) with a mean age of 33.3 +/- 14.4 years. A total of 2265 patients, with a prevalence of 5.2% (2265/43880), had at least one dental anomaly. The most frequent anomalies were in position (2.7%) and number (2.1%). Structure anomalies were least common, affecting 0.02% ofpatients. Among the study group ofpatients with dental anomalies, 12.2% presented more than one kind of anomaly.Conclusion: Position anomalies were the most common dental anomaly, whereas struc-tural anomalies were least common in a Turkish sample. The prevalence of anomalies varies between populations, confirming the role of racial factors.