Thesis Type: Doctorate
Institution Of The Thesis: Gazi University, Turkey
Approval Date: 2017
Thesis Language: Turkish
Student: Bahruz Aliyev
Supervisor: GÜLAY TÜTER
Abstract:The aims of this study are to evaluate plaque index (PI), gingival index (GI), probing pocket depth (PPD), clinical attachment level (CAL), halimeter values (HMV), organoleptic scores (OLS), Winkel tongue coating index (WTCI) and salivary β - galactosidase levels at baseline and 1 month after phase I periodontal therapy in chronic periodontitis patients with halitosis (H), chronic periodontitis patients without halitosis and periodontally healthy patients and also to investigate the effect of phase I periodontal therapy on these parameters. PI, GI, PPD, CAL, HMV, OLS, WTCI scores were recorded and salivary β - galactosidase levels were measured in the chronic periodontitis patients with halitosis (Group1-H(+); 25 patients), chronic periodontitis patients without halitosis (Group2-H(-); 25 patients) and periodontally healthy (Group3-Control; 25 subjects) individuals at baseline and 1 month after phase I periodontal treatment. Chronic periodontitis patients were informed about tongue cleaning during the therapy. Statistical analysis were performed (Significance level was declared at P < 0.05 for all statistical evaluations) . All of the parameters in H (+) and H (-) chronic periodontitis groups were significantly higher than periodontally healthy group (p <0.05). The baseline values of PI, GI, HMV, OLS, WTCI and salivary β - galactosidase levels were showed significantly difference between Group1-H(+) and Group2-H(-) (p <0.05). A statistically significant decrease was found in PI, GI, PPD, CAL, HMV, OLS, WTCI and salivary β - galactosidase levels in chronic periodontitis patients with or without halitosis after non - surgical periodontal treatment and tongue cleaning (p <0.05). When we compared to H (+) and H (-) groups it was found that HMV, OLS and WTCI scores showed a higher and statistically significant difference in H (+) group after treatment (p <0.05). There was a positive correlation between HMV and PI, GI, PPD, CAL, OLS, WTCI and salivary β-galactosidase levels of initial measurements of all the subjects in the study. Although there was a positive correlation between HMV and PI, GI, PPD, CAL, OLS, WTCI, there was no correlation between HMV and salivary β-galactosidase levels after phase I periodontal therapy. In our study, salivary β - galactosidase levels were positively correlated with PPD, CAL, HMV, OLS and WTCI only before treatment. According to our results, the increase in salivary β - galactosidase level have an important role in the development of oral malodor in patients with chronic periodontitis. In conclusion, we suggest that non-surgical periodontal treatment and tongue cleaning are effective methods in the treatment of oral malodor in patients with chronic periodontitis.