Abstract
Background Tobacco chewing and smoking influence salivary antioxidant levels and therefore their effect on dental caries incidence needs to be evaluated. Objectives To correlate the effect of smoking and tobacco chewing on salivary pH and total antioxidant capacity TAC in individuals with and without dental caries in North Karnataka region of India.Methods About 180 male patients aged 20-60 years were chosen and allotted to three groups n60. Group 1 Non-smokers and chewers. Group 2 Only tobacco chewers and Group 3 Only smokers. Each group was further split into two subgroups n30 A with dental caries B without dental caries. Dental caries was assessed by WHO-recommended DMFT Decayed Missing Filled Teeth criteria and salivary samples were obtained by spitting method. Salivary pH was determined and supernatants from centrifuged samples were subjected to ferric reducing antioxidant power FRAP assay for estimating TAC levels. The one-way analysis of variance ANOVA and Post Hoc Tukey tests were used for statistical analysis P lt0.05.Results Higher caries rate with lower pH and decreased salivary TAC levels were found in tobacco chewers and smokers with and without dental caries compared to non-tobacco chewers and non-smokers with significant difference.Conclusion Tobacco chewers and smokers showed decreased salivary TAC levels with lower pH and high caries rate compared to individuals without these habits.
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