Browsing by Author "Cehreli, S. Burcak"

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Accuracy of The Third Molar Index for Assessing the Legal Majority of 18 Years in Turkish Population
(2016) Gulsahi, Ayse; De Luca, Stefano; Cehreli, S. Burcak; Tirali, R. Ebru; Cameriere, Roberto; https://orcid.org/0000-0001-6487-3984; 27344224; AAD-6138-2021; HZK-4947-2023
In the last few years, forced and unregistered childmarriage has widely increased into Turkey. The aim of this study was to test the accuracy of cut-off value of 0.08 by measurement of third molar index (I-3M) in assessing legal adult age of 18 years. Digital panoramic images of 293 Turkish children and young adults (65 girls and 128 boys), aged between 14 and 22 years, were analysed. Age distribution gradually decreases as I-3M increases in both girls and boys. For girls, the sensitivity was 85.9% (95% CI 77.1-92.8%) and specificity was 100%. The proportion of correctly classified individuals was 92.7%. For boys, the sensitivity was 94.6% (95% CI 88.1-99.8%) and specificity was 100%. The proportion of correctly classified individuals was 97.6%. The cut-off value of 0.08 is a useful method to assess if a subject is older than 18 years of age or not. (C) 2016 Elsevier Ireland Ltd. All rights reserved.
Effect of Biodentine on Secondary Caries Formation: An in Vitro Study
(2016) Ozgul, Betul Memis; Tirali, R. Ebru; Cehreli, S. Burcak; https://orcid.org/0000-0001-6487-3984; 27295863; AAZ-1977-2021; AAD-2907-2020; AAD-6138-2021
Purpose: To compare the effects of two materials, Biodentine and conventional glass-ionomer cement (CGIC), on secondary caries formation around restorations when used as a dentin replacement material. Methods: 30 approximal cavities were prepared on mesial and distal surfaces of 15 caries-free human premolar teeth extracted for orthodontic or periodontal reasons. Cavities were filled with A: Biodentine as a base + Filtek Z250 composite (n = 15) or B: CGIC as a base + Filtek Z250 composite (n= 15). The materials were applied according to the manufacturers' instructions. Teeth were thermocycled, and placed in a demineralizing solution for 5 weeks. Secondary caries formation was assessed using the International Caries Detection and Assessment System (ICDAS) II and quantitative computer aided image measurement of caries depth. Results: The computer-aided measurements showed that the Biodentine group had significantly lower lesion depth measurements than the CGIC group (P = 0.004). However, there was no significant difference among the groups based on the ICDAS II scores (P > 0.05).
The Effect of Temperature and Contact Time of Sodium Hypochlorite on Human Roots Infected with Enterococcus Faecalis and Candida Albicans
(2014) Gulsahi, Kamran; Tirali, R. Ebru; Cehreli, S. Burcak; Karahan, Zeynep Ceren; Uzunoglu, Emel; Sabuncuoglu, Bizden; https://orcid.org/0000-0003-3510-7265; https://orcid.org/0000-0001-6487-3984; 23011474; AAX-5565-2021; AAD-2907-2020; AAD-6138-2021
The aim of this study was to evaluate the effectiveness of 2.5 % NaOCl at different temperature and time intervals on Enterococcus faecalis and Candida albicans-infected human roots. A total of 112 root cylinders prepared from extracted single-rooted humans were infected by E. faecalis (Group A, n = 56) or C. albicans (Group B, n = 56); 3 root cylinders served as negative controls. Both groups were further divided into 6 subgroups according to three contact times (30 s, 1 min, 5 min) with NaOCl at two different temperatures (25 or 37 A degrees C). Microorganism growth was controlled at the 24th and 48th hours. Statistical analysis was performed using the Chi-square test. While NaOCl at 25 A degrees C for 5 min was the most effective irrigation regimen to eliminate E. faecalis (p < 0.001), NaOCl at 37 A degrees C for 5 min exhibited significantly superior antifungal properties (p < 0.05). At the same contact times, difference in the temperature of NaOCl did not affect the growth of either E. faecalis or C. albicans. As a result, the irrigation time of NaOCl was more effective than the temperature to eliminate E. faecalis, while pre-heating of NaOCl to 37 A degrees C increased its effectiveness on C. albicans at 5 min contact time.
Hall Versus Conventional Stainless Steel Crown Techniques: in Vitro Investigation of Marginal Fit and Microleakage Using Three Different Luting Agents
(2014) Erdemci, Zeynep Yalcinkaya; Cehreli, S. Burcak; Tirali, R. Ebru; https://orcid.org/0000-0001-6487-3984; 25197992; AAD-6138-2021; HZK-4947-2023
Purpose: This study's purpose was to investigate microleakage and marginal discrepancies in stainless steel crowns (SSCs) placed using conventional and Hall techniques and cemented with three different luting agents. Methods: Seventy-eight human primary maxillary second molars were randomly assigned to two groups (N=39), and SSCs were applied either with the Hall or conventional technique. These two groups were further sub grouped according to the material used for crown cementation (N=13 per group). Two specimens in each group were processed for scanning electron microscopy investigation. The extent of microleakage and marginal fit was quantified in millimeters on digitally photographed sections using image analysis software. The data were compared with a two-way independent and a two-way mixed analysis of variance (P=.05). Results: The scores in the Hall group were significantly worse than those in the conventional technique group (P<.05). In both groups, resin cement displayed the lowest extent of microleakage, followed by glass ionomer and polycarboxylate cements (P<.05). Conclusions: Stainless steel crowns applied using the Hall technique displayed higher microleakage scores than those applied using the conventional technique, regardless of the cementation material. When the interaction of the material and technique was assessed, resin cement presented as the best choice for minimizing microleakage in both techniques.
The Reliability of Cameriere's Method in Turkish Children: A Preliminary Report
(2015) Gulsahi, A.; Tirali, R. Ebru; Cehreli, S. Burcak; De Luca, S.; Ferrante, L.; Cameriere, R.; 0000-0001-6487-3984; 25704458; AAD-2907-2020
Dental age estimation in children is an important issue both legally and medically. Currently, however, there is a lack of contemporary dental age estimation standards for a Turkish population. This study assessed the accuracy of Cameriere's method by examining the panoramic radiographs of 573 healthy Turkish children between the ages of 8 and 15 years. Radiographs of the left permanent developing mandibular teeth, except wisdom teeth, were evaluated. All subjects were divided into 7 groups according to their chronological age. The Intra-class Correlation Coefficient was used to determine the intra-and inter-observer agreement error. A comparison of the distributions of estimation errors among age groups was performed using the Nemenyi test. There were no significant differences between inter-observer (p = 0.352), and intra-observer readings after 2 weeks (p = 0.275 and p = 0.273, respectively). The dental age was underestimated when using Cameriere's method with a mean difference of -0.35 years (-0.24 years for girls and -0.47 years for boys). The median values of the differences between dental and chronological age were -0.44 years in boys (range: -3.70, 4.06) and -0.21 years in girls (range: -2.74, 3.29). In addition, the differences between dental and chronological ages in the different age groups decreased with increasing chronological age. Results from the Nemenyi test implied that Cameriere's method is more accurate for girls than for boys in this cohort of a Turkish population. (C) 2015 Elsevier Ireland Ltd. All rights reserved.