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Type: Artigo de periódico
Title: Lethal photosensitization and guided bone regeneration in treatment of peri-implantitis: an experimental study in dogs
Author: Shibli, JA
Martins, MC
Ribeiro, FS
Garcia, VG
Nociti, FH
Abstract: The purpose of this study was to evaluate the effect of lethal photosensitization and guided bone regeneration (GBR) on the treatment of ligature-induced peri-implantitis in different implant surfaces. The treatment outcome was evaluated by clinical and histometric methods. A total of 40 dental implants with four different surface coatings (10 commercially pure titanium surface (cpTi); 10 titanium plasma-sprayed (TPS); 10 acid-etched surface; 10 surface-oxide sandblasted) were inserted into five mongrel dogs. After 3 months, the animals with ligature-induced peri-implantitis were subjected to surgical treatment using a split-mouth design. The controls were treated by debridment and GBR, while the test side received an additional therapy with photosensitization, using a GaAlAs diode laser, with a wavelength of 830 nm and a power output of 50 mW for 80 s (4 J/cm(2)), and sensitized toluidine blue O (100 mu g/ml). The animals were sacrificed 5 months after therapy. The control sites presented an earlier exposition of the membranes on all coating surfaces, while the test group presented a higher bone height gain. Re-osseointegration ranged between 41.9% for the cpTi surface and 31.19% for the TPS surface in the test sites; however differences were not achieved between the surfaces. The lethal photosensitization associated with GBR allowed for better re-osseointegration at the area adjacent to the peri-implant defect regardless of the implant surface.
Subject: guided bone regeneration
photodynamic therapy
Country: Inglaterra
Editor: Blackwell Publishing
Rights: fechado
Identifier DOI: 10.1111/j.1600-0501.2005.01167.x
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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