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    Comparative Evaluation of Oral Health Status in Healthy Children and Children with Autism Spectrum Disorder
    (Georg Thieme Verlag Kg, 2020) Tulumbaci, Fatih; Korkut, Emre; Ozer, Hazal
    Objective Autism spectrum disorder (ASD) is regarded a severe neuropsychiatric disorder. The objective of this study was to compare the status of the oral health between children with and without ASDs. Methods A total of 95 children (44 with ASD and 51 without ASD) were included. dmft/DMFT (d/D: decay; m/M: missing; f/F: filling; t/T: teeth) scores and plaque data of all participants were recorded. SalivaStreptococcus mutansand lactobacilli load were determined using CRT bacteria. Results Streptococcus mutansload was >10(5) CFU in 54.5% of the ASD group and 43.1% in the non-ASD group. Lactobacilli load was >10(5) CFU in 47.70% of the ASD group and 49.0% in the non-ASD group. There was no statistically significant difference in theS. mutansor lactobacilli loads between the ASD and non-ASD groups. A total of 83.1% of the ASD group had caries, with dmft = 3.25 and DMFT = 5.10. In the non-ASD group, 81.10% of patients had caries, with dmft = 3.10 and DMFT = 4.90; 38.6% of the ASD group and 29.4% of the non-ASD group had no clinical signs of periodontal disease. Conclusion The examination of the amount of salivaS. mutansand lactobacilli at intervals with these patients will provide quantitative data to evaluate the effectiveness of oral health care.
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    Evaluation of temperature changes in the pulp chamber during polymerization of pulp capping materials
    (Taylor & Francis Ltd, 2018) Korkut, Emre; Tulumbaci, Fatih; Gezgin, Onur; Ozer, Hazal; Ozcan, Mutlu
    Polymerization of resin-based materials leads to temperature rise, caused by the exothermic nature of the reaction and energy absorbed during polymerization. This temperature rise is influenced by intensity of light, composition of resins, and type of light source. This study evaluated thermal insulating properties of four photo-polymerizing pulp-capping agents in primary and permanent teeth. Roots of 80 primary and permanent teeth were removed. Class-I cavities were prepared on the occlusal surfaces of teeth. Materials used were TheraCal LC, Biner LC, ACTIVA BioACTIVE, and Calciplus LC and light sources were 3M-Elipar and VALO LED. Temperature rise was measured using a J-type thermocouple. Data were statistically evaluated using ANOVA and Tukey`s tests (p=0.05). VALO LED exhibited significantly lower temperature rise in all groups and temperature rise in primary teeth was significantly higher with all experimental materials (p<0.05). The highest temperature change was observed in the Biner LC group (3.82 +/- 0.58) and the lowest change in the Activa-BioACTIVE group (1.78 +/- 0.34). The VALO LED light source caused a significantly lower increase in pulpal temperature compared with the 3M-Elipar source. All tested materials and light sources maintained pulpal temperature under safe limits, with temperature increases not exceeding 5.5 degrees C.
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    HPLC analysis of eluted monomers released from dental composites containing bioactive glass
    (Taylor & Francis Ltd, 2018) Gezgin, Onur; Korkut, Emre; Tulumbaci, Fatih; Ozer, Hazal; Sener, Yagmur
    Objectives: The aim of the present study is to evaluate the released residual monomers from composite resins that contain different proportions of bioactive glass (BAG). Methods: Experimental resin composites were prepared by a resin matrix (50% BisGMA and 50% TEGDMA) and inorganic filler with BAG (5, 10 and 30%). Each resin composite was placed in the tooth cavity (n=5). After polymerisation, samples were immediately immersed in 75% ethanol and 25% deionised water (6ml) at 37 degrees C. Residual monomers (Bis-GMA, TEGDMA, HEMA and UDMA) that were eluted from the composites for 10m, 1h, 1 d, 7 d and 30 d were analysed by high-performance liquid chromatography (HPLC). The data were analysed with one-way ANOVA and Tukey HSD at a p<0.05 significance level. Results: Among the time periods, the fastest released residual monomer was observed in the 10m elution. The highest amount of released residual monomer from all groups (except the control group) was TEGDMA, whereas this was HEMA for the control group. The amounts of residual monomers eluted from BAG30 were significantly higher than other groups (p<0.05). Conclusions: The release of the monomer increases in accordance with the increased BAG addition to the composite resins.