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    Congenital Insensitivity to Pain: A Case Report with Dental Implications
    (Medcom Ltd, 2010) Bolgul, B. Sezgin; Hamamci, N.; Agackiran, E.; Celenk, S.; Ayna, B.
    Congenital insensitivity to pain is a rare disorder seen in early childhood. Five different types of hereditary sensory and autonomic neuropathy have been identified, to date, with different patterns of sensory and autonomic dysfunction, peripheral neuropathy, clinical features, and genetic abnormalities. Absence of pain and self-mutilation are characteristic findings of this syndrome. Teeth in the oral cavity can cause damage to the oral tissues and tongue. When diagnosed, there should be cooperation between the dentist and neurologist. Using an oral shield prevents biting, and thus tissue trauma can be prevented. Here, we present the case of a 6-month-old boy with congenital insensitivity to pain (hereditary sensory and autonomic neuropathies; HSAN type V) with self-mutilation injuries to his tongue and fingers caused by biting, along with a discussion of treatment strategies. The results of this report suggest that early diagnosis and specific dental management for patients with congenital insensitivity to pain are important for prevention of the characteristic oral and dental problems accompanying this disorder.
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    Leakage testing for different adhesive systems and composites to permanent teeth
    (Wolters Kluwer Medknow Publications, 2017) Bolgul, B. S.; Ayna, B.; Simsek, I.; Celenk, S.; Seker, O.; Kilinc, G.
    Aim: To explore the microleakage of different adhesive systems and flowable composites to permanent teeth. Subjects and Methods: In this study, a total of 84 human premolar teeth were used. Class V cavities were prepared on the buccal surfaces. The teeth were randomly assigned to six groups of 14 teeth each as follows: The first group u etch-rinse adhesive applied and cavities filled with flowable composite, the second group u etch-rinse adhesive applied and cavities filled with bulk-fill resin composite, the third group u one-stage self-etch (SE) adhesive applied and cavities filled with flowable composite, the fourth group u one-stage SE adhesive applied and cavities filled with bulk-fill resin composite, the fifth group u two-stage SE adhesive applied and cavities filled with flowable composite, and the sixth group u two-stage SE adhesive applied and cavities filled with bulk-fill resin composite. All specimens were then stored for 24 h at 37 degrees C in distilled water. Teeth were then thermocycled for 500 cycles between 5 degrees C and 55 degrees C prior to immersion in 0.5% basic fuchsin for 24 h. Two mesiodistal cuts of each tooth were photographed for leakage with a digital camera. The dye infiltrated surface for each specimen was measured and data were collected with a software program. Statistical evaluations were done by nonparametric KruskaluWallis test and MannuWhitney U-test. Results: There were statistically significant differences in mean microleakage ratio among the groups (P < 0.05). The first group had shown significantly increased microleakage areas than the other four groups (third, fourth, fifth, and sixth groups) (P < 0.05), except for the second group (P 0.05). It was also no significant different between the mean microleakage areas of group fourth and group fifth (P 0.05). The sixth group had exhibited the lowest microleakage areas, and it was statistically significant (P < 0.05) compared to the other groups. Conclusion: In this study, it has been found that the use of total etch adhesive systems resulted in high leakage values.
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    Microleakage of Glass Ionomer based Restorative Materials in Primary Teeth: An In vitro Study
    (Wolters Kluwer Medknow Publications, 2018) Ayna, B.; Celenk, S.; Atas, O.; Tumen, E. C.; Uysal, E.; Toptanci, I. R.
    Aim: Using AutoCAD, we examined the microleakage of dye at the edges of primary-teeth restorations using three glass ionomer-based restorative materials. Materials and Methods: A total of 30 extracted noncarious primary molars were used. Class V cavities were adjusted on the buccal surfaces. The teeth were randomly divided into three groups of 10 teeth each as follows: Group A (Ketac Molar), Group B (Photac Fil), and Group C (Dyract XP). All specimens were stored for 24 h at 37 degrees C in distilled water. The teeth were thermocycled 1000 times between 5 degrees C +/- 2 degrees C and 55 degrees C +/- 2 degrees C before immersion in 0.5% basic fuchsin for 24 h. Two mesiodistal cuts of each tooth were photographed under a stereomicroscope equipped with a digital camera. The dye-infiltrated surface area was measured. Statistical evaluations were performed by the Kolmogorov-Smirnov test, Levene test, one-way analysis of variance, and Tukey's honestly significant difference test. Results: The mean microleakage ratio differed significantly among the groups (P < 0.05). Group C exhibited a significantly smaller area (P < 0.001) than the other groups. Group A had a nonsignificantly higher mean microleakage value than Group B (P > 0.05). Conclusions: Polyacid-modified composite resin may be a useful restorative material in primary teeth in terms of minimizing microleakage.
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    Three-year clinical evaluation of endodontically treated anterior teeth restored with a polyethylene fibre-reinforced composite
    (Wiley, 2009) Ayna, B.; Celenk, S.; Atakul, F.; Uysal, E.
    Polyethylene fibre-reinforced composites (FRCs) have been under development for some time. However, there is a lack of data on the clinical performance of these restorations. The purpose of this descriptive study was to evaluate the clinical performance of endodontically treated anterior teeth restored using polyethylene FRCs. Eighty-seven endodontically treated anterior teeth in 65 patients were restored with polyethylene FRCs. The restorations were placed by three operators. The patients were recalled for examinations every year for up to three years. The restorations were evaluated using modified Ryge and USPHS criteria. A statistical analysis showed no significant difference in marginal irregularity, marginal discolouration, surface texture, wear/anatomic form, fracture and retention, radiographic appearance, or debonding between the baseline and three-year results. Based on our three-year examination results, polyethylene FRC restorations appear to be clinically successful.