As numerous studies show mechanically it is impossible to clear completely all the internal surfaces of the root canal, efficiently it is handled 70% of the root canal walls passable. Therefore antimicrobials for intracanal application deserve the attention. They must have a high anti-microbial and anti-inflammatory, non-irritating and sensitizing effects, activate the reparative processes in  periapical tissues. However, even a single drug thorough root canal treatment does not guarantee against recurrence. The main disadvantage of antiseptic treatment is the lack of exposure for the complete elimination of pathogens. The optimal thing is an occlusion of the channel and the removal of material at the tip of the tooth root, combining features of suppressing the inflammatory process in the channel and in the periodontal tissues, eliminates pathogens and damaged tissue structures, and stimulates regeneration of newly complete periodontal tissues.

In our work we studied the efficiency of treatment of destructive forms of apical periodontitis using the technology of the delayed filling of the root canal by the Russian drug «Trapeks», R&P Org. POLYSTOM, which has the properties listed above, due to the combination in the structure of substances with anti-inflammatory properties, suppressing oxidative stress and depositing growth factors.
Our study provides data analysis of the results of examination and treatment of 12 patients with chronic destructive forms of periodontitis. The study excluded patients with accompanying medical conditions that lead to a change in the immune status.
Patients were carried out according to traditional methods, adopted in clinical dentistry. Endodontical and pharmacological treatment was carried out according to standard principles. To improve the efficiency of decontamination of the root canal and periodontal tissues technology of deferred root canal filling with breeding of «Trapeks» in the hearth of destruction was used. The length of temporary obturation was 14 — 30 days, followed by a final sealing of the channels.
Clinical efficacy of treatment of chronic periodontitis defined as the percentage of achieved remission. The evaluation was conducted during the second visit in six months. The criterion for the efficiency of the proposed scheme of therapy was the incidence of clinical remission, confirmed by radiographic images.
Analyzing the results of the next treatment of various forms of chronic destructive periodontitis we came to the following conclusions:
— The results of treatment should be regarded as satisfactory;
— Application for a temporary obstruction of channels of «Trapeks» can improve the results of treatment.

References
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