Publicação: Treatment of experimental periodontal disease by photodynamic therapy in immunosuppressed rats
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Wiley-Blackwell Publishing, Inc
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Fernandes LA, de Almeida JM, Theodoro LH, Bosco AF, Nagata MJH, Martins TM, Okamoto T, Garcia VG. Treatment of experimental periodontal disease by photodynamic therapy in immunosuppressed rats. J Clin Periodontol 2009; 36: 219-228. doi: 10.1111/j.1600-051X.2008.01355.x.The aim of this study was to compare photodynamic therapy (PDT) as an adjunctive treatment of induced periodontitis with scaling and root planing (SRP) in dexamethasone-inhibited rats.The animals were divided into two groups: ND (n=90), saline solution treatment; D (n=90), dexamethasone treatment. In the ND and D Groups, periodontal disease was ligature-induced at the first mandibular molar. After 7 days, the ligature was removed and all animals received SRP and were divided according to the following treatments: SRP, saline solution; Toluidine Blue-O (TBO), phenothiazinium dye; and PDT, TBO and laser irradiation. Ten animals in each treatment were killed at 7, 15 and 30 days. The radiographic and histometric values were statistically analysed.In the ND and D Groups, radiographic analysis showed less bone loss in animals treated by PDT in all the experimental periods than SRP and TBO at 15 days (p < 0.05). After a histometric analysis was carried out in the ND and D groups, the animals treated by PDT showed less bone loss in all periods than SRP and TBO after 15 days (p < 0.05).The PDT was an effective adjunctive treatment of induced periodontitis compared with SRP in dexamethasone-inhibited rats.
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animal model, non-surgical periodontal therapy, periodontal disease, periodontal therapy, systemic host effect
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Inglês
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Journal of Clinical Periodontology. Malden: Wiley-blackwell Publishing, Inc, v. 36, n. 3, p. 219-228, 2009.
