Comportamento microbiológico de conexões cone morse em próteses imediatas do tipo protocolo

Resumo (EN)

The objective of this prospective study was to evaluate microbiologically dental implants with prosthetic connections, external hexagon and cone morse in immediate prosthesis of the protocol type. For this controlled, randomized, blind and split-mouth study, 21 mandibular total edentulous patients were selected. The implants evaluated were of the extremities, which were divided into two groups: Group 1 - External Hexagon (HE): conical implant of prosthetic connection external hexagon; Group 2- Cone Morse (CM): conical implant of prosthetic cone morse connection. Subgengival biofilm collections for the detection and quantification of the pathogens Aggregatibacter actinomycetemcomitans (Aa), Porphyromonas gingivalis (Pg) and Tannerella forsythia (Tf) by means of real-time PCR were carried out shortly after the implantation of the implants (Baseline) and in 7, 30 and 180 days. The data were submitted to paired T test at a significance level of 5%. It was possible to observe only reduction in levels of the Aa pathogen in the cone morse group at 7 days (p <0.05). No intra and intergroup differences were observed for the other pathogens. The frequency of detection of the microorganisms was similar in the two types of connections. It can be concluded that the studied connections have the same microbiological profile in the studied period.