Publicação: The influence of chlorhexidine on the severity of cyclosporin A-induced gingival overgrowth
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Amer Acad Periodontology
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THE INFLUENCE OF CHEMICAL PLAQUE CONTROL, using topically applied 0.12% chlorhexidine, on the severity of cyclosporin A (CsA)-induced gingival overgrowth (GO) was evaluated. Forty Holtzman rats were divided into four groups: 1) control; 2) cyclosporin A: a 10mg/kg/day subcutaneous dose of CsA; 3) chlorhexidine: 0.12% chlorhexidine (CHX) was applied to the buccal surface of the right mandibular molars; and 4) cyclosporin A/chlorhexidine: a combination of the treatment described for cyclosporin A and chlorhexidine groups. The animals were fed a high sucrose diet during the experiment and were sacrificed after 14 and 21 days. The histometric analysis revealed a significant increase in buccal gingival area in the cyclosporin A group compared to other groups (P < 0.01) after 21 days. The epithelium thickness of the buccal gingiva was significantly increased in the cyclosporin A group, compared to the control group (P < 0.05). The cyclosporin A/chlorhexidine group exhibited statistically significantly lower gingival overgrowth than the cyclosporin A group. These findings, if replicated in human studies, suggest that topically applied 0.12% chlorhexidine may be a valuable measure in the management of cyclosporin-induced gingival overgrowth.
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chlorhexidine therapeutic use, cyclosporin A adverse effects, dental plaque prevention and control, gingival hyperplasia, animal studies
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Inglês
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Journal of Periodontology. Chicago: Amer Acad Periodontology, v. 68, n. 9, p. 900-904, 1997.
