Acid-basic balance (ABB) is the important element that supports local homeostasis in oral cavity (OC). However dentists usually do not take into account ABB in OC thus reducing the efficiency of dental care and treatment of mucous membrane disorders in these patients. The purpose of the research was to estimate the ABB values in OC in patients having chronic general somatic diseases. The ABB in OC in 80 healthy persons and in 289 persons with ulcer disease, chronic kidneys insufficiency or insulin-dependent diabetes aged 35-44 years was assessed. The speed of no stimulus salivation, рН of oral and gingival liquids as well as amplitude tests (saccharose and carbamide) curves рН were evaluated. Patients with a somatic pathology have an impairment of OC ABB regulation system associated with changes of acid- and ammonia-producing microflora activity, topographical redistribution of functional acidosis and alkalosis zones. Correction of the revealed impairments is necessary to increase the efficiency of dental care and preventive treatment in these groups of patients.
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