Browsing by Author "Evirgen, Sehrazat"

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    Pre-eruptive Intracoronal Resorption of Permanent Dentition: A New Classification and a Multidisciplinary Study
    (2023) Yuksel, Halil Tolga; Turkmenoglu, Aysegul; Celikkol, Berk; Evirgen, Sehrazat; Gulsahi, Kamran; Gulsahi, Ayse; https://orcid.org/0000-0003-3510-7265; 36317538
    The aims of this study were to develop a new classification for pre-eruptive intracoronal resorption(PIR) with different resorption areas and sizes and to compare the new classification scores among observers from different specialities and professional experience. The PIR was evaluated according to the new classification by two dentomaxillofacial radiologists and two endodontists. Information regarding the patient's age, gender, systemic diseases, the number of PIR, the affected tooth area and the size of the PIR was recorded. The new classification system showed that PIR six and seven defects were the most detected. Regarding jaw regions, the highest reliability was seen in the maxillary central teeth between observers I and IV, and maxillary premolar-molar teeth between observers II and III. This study revealed that PIR can be found in both root and crown dentine. Professional experience and specialty and awareness of the PIR defect may affect the diagnosis.
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    Volatile Sulphur Compound Levels and Related Factors in Patients with Chronic Renal Failure
    (2014) Gulsahi, Ayse; Evirgen, Sehrazat; Oztas, Bengi; Genc, Yasemin; Cetinel, Yasemin; 24923904
    Aims: To analyse specific volatile sulphur compound(VSC) levels in a group of chronic renal failure (CRF) patients and determine the relationship between these VSC levels and organoleptic measurements, blood urea nitrogen (BUN) levels, dental and periodontal conditions, salivary flow rate, and tongue coating scores. Materials and Methods: One examiner performed organoleptic and VSC measurements on fifty patients with CRF before and after haemodialysis (HD) and controls. DMFT and CPITN indexes, tongue coating scores, salivary flow rates were measured. Comparisons were performed using the Mann-Whitney U, Wilcoxon signed-ranks, and chi-square tests. Spearman correlation coefficient was used to analyse correlations. Results: Before HD, the mean dimethyl sulphide level was 1.04 +/- 1.20 in the CRF patients and 0.51 +/- 0.65 in controls, with a significant difference. The mean hydrogen sulphide, methyl mercaptan and dimethyl sulphide levels in CRF patients were 1.47 +/- 3.04, 1.03 +/- 1.85, and 1.04 +/- 1.20, respectively, before HD; and 0.53 +/- 1.65, 0.48 +/- 1.27, and 0.56 +/- 0.85, respectively, after HD; with the differences being significant. Methyl mercaptan levels increased with an increase in HD duration. Tongue coating and organoleptic measurements were significantly correlated with methyl mercaptan. Conclusions: Dimethyl sulphide is the main VSC in extraoral blood-borne halitosis; but methyl mercaptan may also contribute to this type of halitosis. A decreased salivary flow rate and an increased pH of the biofilm matrix may be a significant parameter for VSC levels in CRF patients.