| ABSTRACTBack ground: The purpose of this study was to evaluate the effect of smoking on periodontal status and the salivary composition.Materials and Methods: The study groups include 25 healthy subjects, 13 smokers and 12-non-smokers.Periodontalparameter included PL.I, G.I, CI.S and B.O.P was recorded. Five ml of unstimulated whole saliva was collected beforeclinical measurement. Biochemical analysis of salvia was carried out which include thiocyanate, sodium, calcium,magnesium and potassium.Results: The smokers exhibited significant difference in mean of PL.I and CI.S (1.47, 1.44) respectively in comparison to non smoker (1.19, 0.82) respectively. The non smoker exhibited higher percentage of B.O.P (39%) in comparison to smoker (27%) which is significantly difference. There was no difference in the mean of G.I for smoker in compare to non smoker (1.21, 1.29) respectively. The biochemical analysis of saliva showed that sodium values were significantly greater in non smoker (13.89 mEq/I) when compared to smoker (8.99mEq/I). Like wise non smoker exhibited greater calcium level (7.09 mg/100ml) when compared to smoker (3.43 mg/100ml) and for magnesium was (0,81mEq/I) for non smoker in comparison with smoker (0,47mEq/I). On contrary smoker showed higher level of thiocyanate and potassium (1.33 mM , 18.89mEq/I) respectively in comparison with non smoker (0.56 mM, 13.79mEq/I) respectivelyConclusion: Smoker exhibited low level of oral hygiene and greater disease level but reduced calcium, sodium and magnesium concentration in compare to non smokerKey words: Smoking, periodontal parameter, saliva and chemistry. (J Bagh Coll Dentistry 2008; 20(1) 49-51) |