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    Approaches of General and Specialist Dentists to Deep Caries Management: A Cross-Sectional Study from Turkey
    (Univ Indonesia, Fac Dentistry, 2021) Delikan, Ebru; Erturk-Avunduk, Ayse Tugba; Aksu, Seckin
    Objective: To determine the differences in treatment strategies and material preferences for deep dentine carious lesions (DDCLs) management among general and specialist dentists. Methods: Dentists working in universities, oral and dental health centers, or private practice were administered a 14-item web-based questionnaire regarding demographic and occupational characteristics, approaches to DDLCs, pulp capping methods, and preferences for restorative materials. The data were examined using descriptive statistical analysis and Pearson's chi-square tests. Results: The study enrolled 298 general and 265 specialist dentists among whom 67.1% were female and 73.3% were aged 25 to 35 years. Total excavation and permanent restoration of DDCLs were the commonly preferred treatments (67.0%), although the pediatric dentists tended toward selective caries removal in these lesions. Mineral trioxide aggregate was used more regularly by the pediatric dentists and endodontists. The pediatric dentists exhibited statistically significantly lower preference for canal treatment than general dentists and endodontists as treatment option for mature teeth with DDCLs (p<0.05). Conclusion: Conservative treatment approaches and material preferences of specialists and general dentists in DDCLs are generally different. The age of dentists, the time since their graduation, place of work and the number of patients they have seen daily may affect the approaches and preferences.
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    Does childhood chemotherapy affect mandibular bone structures in a lifetime?
    (Wroclaw Medical Univ, 2022) Kis, Hatice Cansu; Cosgunarslan, Aykagan; Delikan, Ebru; Aksu, Seckin
    Background. Chemotherapy, one of the most important treatment modalities for treating childhood cancers, is a major cause of bone loss in patients and survivors.Objectives.This study aimed to evaluate mandibular bone structures in childhood cancer survivors (CCSs) by means of fractal dimension (FD) analysis and the Klemetti index (KI), and to compare them with regard to the control group.Material and methods. In this retrospective study, the panoramic radiographs of 49 CCSs were included as the study group and the panoramic radiographs of 49 cancer-free volunteers were included as the control group. Based on the panoramic radiographs, FD and KI were determined.Results. No significant differences were observed between the study and control groups in terms of mean FD values for regions of interest (ROIs) ROI_1, ROI_2 and ROI_3 (p = 0.750, p = 0.490 and p = 0.910, respectively). The mean FD values for ROI_1 for the study and control groups were 1.08 +/- 0.18 and 1.07 +/- 0.14, respectively. The mean FD values for ROI_2 for the study and control groups were 1.11 +/- 0.13 and 1.09 +/- 0.13, respectively. The mean FD values for ROI_3 for the study and control groups were 1.15 +/- 0.14 and 1.15 +/- 0.15, respectively. Statistically significant differences between the study and control groups were noted only in the distribution of the KI categories (p = 0.015).Conclusions. Childhood chemotherapy may affect mandibular bone structures during a lifetime. The Klemetti index should be considered a useful clinical diagnostic tool for the examination of mandibular bone structures.
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    The Effects of Mouthwashes on the Color Stability of Resin-Based Restorative Materials
    (Univ Costa Rica, Fac Odontologia, 2021) Erturk-Avunduk, Ayse Tugba; Aksu, Seckin; Delikan, Ebru
    Objective: This study investigated the effects of three types of mouthwash on the color stability of three resin-based restorative materials (nanohybrid resin composite, sonic-activated bulk-fill material, and compomer). Materials and Methods: To this end, 120 cylindrical disc specimens were prepared and polished, after which they were incubated in distilled water for 24 hours for post-polymerization. The baseline color values of each specimen were measured with a spectrophotometer, then the specimens were randomly divided into four groups. Following immersion in the mouthwashes for 24 hours, the specimens were rinsed with distilled water and dried before the color measurement was repeated. The values of color change (Delta E-00) were subsequently calculated. A two-way analysis of variance and Duncan's post hoc multiple comparison tests were conducted to determine statistically significant differences among the restorative materials. Results: All samples showed discoloration after immersion, albeit some instances of discoloration were imperceptible. In this respect, a statistically significant difference was found among the restorative materials and mouthwashes (p<0.05). Imperceptible Delta E-00 values were derived on the nanohybrid resin composite and compomer, but perceptible and acceptable Delta E-00 values were detected on the sonic-activated bulk-fill materials (p<0.05). The clinically unacceptable discoloration was observed on the sonic-activated bulk-fill composite immersed in Listerine (R). Conclusions: Clinicians should make recommendations based on the potential staining capacity of mouthwashes prescribed for daily use in restorative materials. In this way, the need for renewal of restorations due to discoloration could be avoided.
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    The osteoinductive potential of different root-end filling materials in a rat femur model
    (Nature Portfolio, 2024) Aksu, Seckin; Delikan, Ebru; Kucuk, Ayse Ozcan; Asoglu, Zehra Demiray; Yilmaz, Sakir Necat
    In pediatric dentistry, the enduring success of root-end filling materials employed for the establishment of apical plugs in immature teeth undergoing endodontic intervention is contingent upon their possessing a robust osteoinductive capacity. Hence, the primary objective of this study was to histologically assess the osteoinductive potential of four distinct dental materials, specifically recommended for retrograde filling applications, utilizing an animal hard tissue model. Within the designed experimental model, two bone defects measuring 2 mm in diameter and 2 mm in depth were created in both femurs of a cohort comprising 21 male Wistar albino rats. The first defect in the right femur was left blank as the control group, and Neo MTA Plus was placed in the second defect. The EndoSequence BCRRM Fast Set Putty was placed in the first of the defects on the left femur, and Endo Repair was placed in the second defect. Subjects were sacrificed after 7, 14, and 28 days of follow-up, and sections were examined to assess the degree of inflammation, connective tissue formation, and new bone formation. The data were statistically evaluated with Kruskal-Wallis and post hoc Dunn's tests using SPSS 12 software. The bone healing levels of the Neo MTA Plus group were significantly higher than those of the other groups in all periods (p < 0.05). Bone organization in all groups decreased over time, and fibrous tissue was enriched. The results of this study demonstrate that NeoMta Plus has superior osteoinductive properties compared to other materials but that EndoSequence and Endo Repair have the potential to be developed.