Influence of a colloidal silver dioxide solution on the edge adjustment of the mineral aggregate trioxide cement for closure of perforation communications <i>in vitro</i>

BACKGROUND: According to Russian and foreign literature, the probability of iatrogenic perforation wall tooth root canal is high (9.712.5%) during endodontic dental treatment. This a poor prognostic sign may subsequently result in extraction. Moreover, cases without curing mineral trioxide aggregate (MTA) cement with pronounced exudation were reported. Сurrently, modification domestically produced MTA relevant for closing teeth perforation.
 AIM: study aimed conduct comparative experimental microscopic preservation marginal fit tissues areas filled mixed conventionally distilled water colloidal silver dioxide solution.
 MATERIALS AND METHODS: Sixty previously removed medical reasons endodontically treated after formation furcation area roots. Two groups formed. In first group, was used close perforations. second solution utilized. The divided into subgroups depending on brand used. placed an automatic incubator HHD 7 LED, which optimal mode created, simulating conditions oral cavity (t = 37 C, humidity 99%). samples artificial saliva. After two months exposing humid environment, damage fillings determined under Levenhuk 720B binocular microscope.
 RESULTS: perforations 30 sealed various types water, found seven (23.3 7.9%) cases. Similar prepare cements detected (6.7 4.6%) (p 0.050, t 1.82).
 CONCLUSION: use solution, comparison contributes greater material walls vitro experiment.