Biocompatibility of different intracanal medications in rat buccal submucosa tissue
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Data
2008-01-01
Autores
Delle Vedove Semenoff, Tereza Aparecida [UNESP]
Segundo, Alex Semenoff [UNESP]
Poli de Figueiredo, Jose Antonio
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru
Resumo
The aim of this study was to analyze the buccal tissue responses of Wistar rats to 2% chlorhexidine solution, calcium hydroxide and the association of both products. For this purpose, 30 specimens were randomly implanted in the filtrum of the four upper and lower hemiarches with a polyethylene tube containing one of the following substances: 2% chlorhexidine solution, calcium hydroxide and 2% chlorhexidine solution (test groups); calcium hydroxide and distilled water and distilled water (control groups). Ten rats each were distributed according to time interval of evaluation at 7, 15 and 30 days. The histological sections were stained with Harris hematoxylin and eosin. Analysis was per-formed with an optical microscope at x100, x200 and x400 magnifications by an expert examiner blinded to the materials. The sections were classified by scores attributed to inflammatory events and by a ranking determined according to the severity of the inflammation. The results of the inflammatory events and severity ranking were submitted to the Kruskal-Wallis test at a 0.05 level of significance. No statistically significant difference occurred among the tested materials; however, all materials showed a decreased of severity with respect to longer time intervals.
Descrição
Palavras-chave
biocompatibility, calcium hydroxide, chlorhexidine, endodontics, rats
Como citar
Journal of Applied Oral Science. Bauru-sp: Univ São Paulo Fac Odontologia Bauru, v. 16, n. 1, p. 12-17, 2008.