Abstract
Introduction. The most popular type of dentures is permanent orthopedic structures. However, their use is a serious intervention that changes biological balance in the oral cavity through galvanic, reflex and toxic allergic effects. Because of this, galvanic currents appear in the oral cavity, which have an adverse effect on the oral mucosa and the physicochemical parameters of the oral fluid. As a result of increasing bioelectric potentials in the oral cavity, oral microbiocenosis disorders may occur, the periodontium pathology develops or worsens and an unpleasant odor arises, which in aggregate can cause a social maladjustment of the patient. It is known that the main intraoral factor in the development of halitosis is the unsatisfactory hygienic condition of the oral cavity. Non-removable dentures made from non-noble dental alloys can also significantly affect the development of intraoral halitosis.
 Objective. To study potentiometric parameters in patients with intraoral halitosis who have fixed orthopedic constructions made of various materials by various technologies.
 Methods and Materials. 158 people aged 35-55 years with fixed orthopedic constructions in the oral cavity in the amount of 5-8 units with a service life of 2-3 years were examined. Four groups were formed: with stamped-brazed dentures, with cast-denture prostheses from dental alloys, with cast-in-place titanium structures and a control group without disrupting the integrity of the dentition. All patients underwent a sanation of the oral cavity, professional hygiene and anti-inflammatory treatment. In addition, hygienic training of patients with quality control of personal hygiene was conducted. In the course of the study, 35 patients from the first and second groups after the complex treatment were replaced by replacing the existing dentures with orthopedic structures made of titanium. The effectiveness of treatment was assessed by the dynamics of indices of hygiene, PMA, organoleptic assessment of halitosis and potentiometric parameters.
 Results. As a result of the study, it was found that patients with dentures, manufactured with the help of the stamped-brazed technology, were characterized by high indices of hygiene (1.29 ± 0.18 points) and PMA (66.79 ± 2.48%). The I degree of halitosis was observed in 27 patients (41.5%) of this group, II degree was observed in 35 people (53.8%) and III degree in 3 people (4.6%). In the second group, the hygiene index was 0.97 ± 0.12, the PMA index was 65.57 ± 2.18%. In 33 patients (67.4%) I degree of halitosis was detected, in 16 patients (32.6%) – II degree. In the third group, the hygiene index was 0.84 ± 0.12, the PMA index was 56.23 ± 1.22. Unpleasant odor in the majority of patients in this group (40 people or 90.9%) was determined when approaching a distance of 10 cm, which corresponded to I degree of halitosis. Only 4 patients (9.1%) had halitosis of II degree. In the control group, the KPI index was 12.13 ± 0.24, the level of hygiene was on average 0.81 ± 0.12 points and 55.56 ± 1.13%, respectively. There were no organoleptic signs of halitosis in this group.
Highlights
Під час оцінювання стану зубних протезів у 13 пацієнтів (8,2% загальної кількості пацієнтів із незнімними зубними протезами) були виявлені порушення конструкції
Під час вивчення біоелектричної активності було встановлено, що в пацієнтів першої групи вихідні показники потенціометрії були найвищими: різниця потенціалів — 123,9±4,1 мВ, сила струму – 17,4±1,4 мкА, електропровідність ротової рідини — 19,1±1,1 мкСм
Результати проведеного дослідження свідчать про можливість збереження потенціометричних показників у порожнині рота в межах норми при протезуванні незнімними зубними протезами з каркасами з біоінертного матеріалу титану і позитивну динаміку цих показників у разі заміни незнімних протезів, виготовлених з інших металів, на суцільнолиті з титану
Summary
Що всі обстежені пацієнти (158 осіб з ортопедичними конструкціями в порожнині рота і 26 осіб без порушення цілісності зубних рядів) характеризувалися високою інтенсивністю карієсу, індекс КПУ склав 13,15±0,21. У пацієнтів першої групи була задовільна гігієна порожнини рота, значення індексу гігієни склало 1,29±0,18 бала, індекс КПУ склав 13,01±0,21, але такий стан супроводжувався високим індексом РМА - 66,79±2,48%.
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