RESUMO:Agentes químicos têm sido usados para auxiliar na inibição da formação do biofilme e impedir desenvolvimento da doença periodontal (DP). O objetivo deste estudo foi avaliar radiograficamente a ação do extrato de própolis na progressão da DP induzida em ratos. Foram utilizados 48 ratos Wistar, divididos em 4 grupos (n=12): Controle, Pincel, Própolis e Clorexidina. Os grupos foram subdivididos para análise aos 7 e 21 dias. A progressão da DP foi avaliada radiograficamente pela distância entre a junção cemento-esmalte e a crista óssea alveolar na face mesial do 1º molar inferior. A perda óssea foi significativamente menor nos animais do grupo própolis em ambos os períodos (p ≤ 0,01). Concluiu-se por análise radiográfica que a aplicação tópica do extrato de própolis interfere reduzindo a progressão da doença periodontal induzida por ligadura em ratos, demonstrando a importância desse composto como substância auxiliar no tratamento periodontal.Palavras-Chave: Periodontia, Própolis, Radiografia.ABSTRACT: Results of topical application of propolis extracts in reducing progression of periodontal disease. Chemical agents have been used to assist on inhibiting biofilm formation and on preventing the development of periodontal disease (PD). The aim of this study was to radiographically evaluate the action of propolis extract on the progression of PD induced in rats. 48 Wistar rats were divided into 4 groups (n = 12): Control, Brush, Propolis and Chlorhexidine. The groups were subdivided for analysis at 7 and 21 days. The progression of the periodontal disease was radiographically assessed by the distance between the cement-enamel junction and the alveolar bone crest mesial of the 1st molar. Bone loss was significantly lower in the Propolis group in both periods (p ≤ 0.01). By radiographic analysis, it is concluded that the topical application of propolis extract interferes by reducing the progression of ligature-induced periodontal disease in rats, demonstrating the importance of this compound as an auxiliary substance in periodontal treatment.
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