[The dependence of the marginal adaptation of composite fillings in caries cavities of class ii by black, on the state of oral hygiene and intensity of caries].

INTRODUCTION: The problem of treatment of dental caries by fillings in dentistry is the key point in dentistry. Thus the main issue is the long-term functioning of the restorations. Particularly acute, this problem in the reduction of cavities class II according to Black, where the pressure on the filling is sufficiently high. MATERIALS AND METHODS: It was examined and treated 87 patients with different levels of oral hygiene of oral cavity and caries of varying intensity and whom 186 defects of hard tissues of teeth class II Black were fitted. All patients were divided into 3 groups depending on the type of filling material selected. Each group was in turn divided into two groups depending on the type of the prepared cavity. In a subgroup (1) the preparation was carried out without additional primary cavity retention elements. In a subgroup (2) the preparation was carried out with the main cavity in the form of retention elements as extra place on the chewing surface. RESULTS: Analyzing the quality of edge adjacent of fillings and restorations in the long-term period (24 months) depending on the intensity of caries and oral hygiene, we found that the best results were obtained in patients with low intensity of caries, and in patients with a high level of oral hygiene of patients in all study groups. CONCLUSION: The best results in the short and long-term periods were obtained in II and IІІ groups. It should be noted that these groups the particularity of preparation has no influence on the quality of the restoration. According to restorations of group I where the restorative material was composite material as chemical hardening"Charisma PPF" ( "Heraeus Kulser"), this relation takes place. The best results in the short and long-term periods shown those restorations, under which created at preparing retention elements in the form of extra place.