The aim: To study the effect of drug addiction and smoking on the status of periodontal tissues in patients with hepatobiliary pathology. Materials and methods: 58 smokers, 63 drug addicts with hepatobiliary pathology were examined and 92 persons of comparison group (with inflammatory periodontal diseases affected by hepatobiliary pathology, without addiction). Examination of patients included determination of iodine number by Svrakov, S-L and Stallard hygiene indices, PMA index and index PBI.

Results: The results of examination of smokers are worse in patients with cirrhosis than in patients with chronic toxic hepatitis and non-alcoholic steatohepatitis and also the results of these two groups was significantly worse than that of the comparison group (iodine number by Svrakov – 1,4 times and 1,3 times higher, PMA index – 1,7 times and 1,4 times worse, in accordance). The results of the study showed that drug addicts patients are worse values in patients with cirrhosis than in patients with chronic toxic hepatitis and non-alcoholic steatohepatitis and also the results of these two groups was significantly worse than that of the comparison group (iodine number by Svrakov – 1,5 times and 1,4 times higher, PMA index – 1,7 times and 1,5 times worse, in accordance).

Conclusions: Presence of hepatobiliary pathology in smokers and drug addicts increases the risk of periodontal diseases.

KEY WORDS: inflammatory periodontal diseases, hepatobiliary pathology, tobacco smoking, drug addiction 

 Introduction. Liver diseases and pathology of the organs of mouth cavity are interconnected. Smoking, usually increases the manifestations of the underlying disease and affects the course. The aim. To investigate the effect of chronic toxic hepatitis of nicotine-dependent patients and of patients without a bad habit on their periodontal status.

Materials and methods. During the clinical examination of the oral cavity of 86 patients, the depth and incidence of inflammation of the gum were determined using the number of the Svrakov's number (SN); the conditions of hygiene of the oral cavity were estimated using the Silness-Loe (S-l) index; Periodontal Index (PMA) and Bleeding Index (PBI). General histomorphology was studied on drugs stained with hematoxilin-eosin and by the method of Gerlich and van Gieson.

Results. It is established that the indicator of SN had the highest value among patients of group II (2,15±0,13), it was probably (p < 0.05) higher relatively to the group I and comparison group. In the smoking patients with chronic toxic hepatitis, in spinous layer of epithelium was determinanted karyorhexis, karyolysis with the formation of cell debris; basal layer cell proliferation, acanthosis, angiogenesis. We detected damage to collagen and elastic fibers of the periodontal, wich correlated with the intensity and duration of the bad habit. In areas of pronounced alterative changes colonies of bacteria were discovered.

Conclusions. Thus, the results obtained in nicotine-dependent patients with chronic toxic hepatitis visualize damaging effect on the epithelium and weakening of the histohematic barrier of the oral cavity and promotes the reproduction and penetrationof pathogenic microflora into the underlying tissues.

Keywords: periodontium, chronic toxic hepatitis, nicotine-dependent.