Perfil clínico e microbiológico das doenças peri-implantares antes e após diferentes terapias mecânicas anti-infecciosas

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The aim of this study was to evaluate the clinical and microbiological profiles before and after mechanical anti-infective therapies for mucositis and peri-implantitis. According to clinical and radiographic peri-implant diagnostic, Brånemark system titanium implants were assigned to one of the following groups: health (n=11); mucositis (n=16): mechanical debridement using abrasive sodium carbonate air-powder and teflon curettes and overcontour prosthesis removal as indicated; peri-implantitis (n=20): Open-flap debridement for implant surface decontamination using abrasive sodium carbonate air-powder and teflon curettes. Visible plaque local score (VPI), gingival marginal bleeding (GI), bleeding on probing (BoP), suppuration (SUP), probing depth (PD) and relative clinical attachment level (rCAL) were assessed at baseline and 90 days after therapies. Each experimental implant was subgingivally sampled (baseline and 90 days) and analyzed by Checkerboard DNA-DNA hybridization. Clinical results demonstrated significant improvements regarding PI, GI, BoP, and PD for mucositis and peri-implantitis and regarding SUP for peri-implantitis at 90 days after treatments (p<0.05). Clinical attachment level gain ( SD) amounted 0.2 0.4; 1.2 1.2 and 2.1 0.9 for healthy, mucositis and peri-implantitis, respectively. At the beginning of the study, diseased implants revealed higher proportions of pathogenic species from red complex such as T. forsythia, P.gingivalis and T. denticola than healthy implants. T. forsythia was the predominant pathogenic species detected in peri-implantitis (p<0.05). A significant decrease in the proportion of P. gingivalis and T. denticola and one specie from orange complex (P. micros) was observed at 90 days after peri-implantitis therapy (p<0.05). After therapies, the proportions of red complex for mucositis and peri-implantitis were similar to healthy implants (p>0.05). In conclusion, the findings of this study revealed improvements of the levels of plaque accumulation, mucosal inflammation, probing depth and microbiological profile in both types of peri-implant lesions at 90 days after treatments.

ASSUNTO(S)

peri-implantite mucosite peri-implantitis dental implants sondas de dna hibridizadas biofilme implantes dentários terapias mecânicas anti-infecciosas mucositis biofilm dna hybridization probes geociencias ant-infective mechanical therapy

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