Publicação: Otosporin reduces pulp inflammatory reactions after dental bleaching of rat molars
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Introduction: Patients undergoing dental bleaching relate to postoperative sensitivity, that is linked to hydrogen peroxide (H2O2) penetrating on the dental pulp. This study evaluated the anti-inflammatory effect of ibuprofen, Otosporin®, and curcumin gel on the pulp of the rats’ teeth after bleaching. Methods: Fifty rats were divided into CG: controlplacebo gel; BLE: bleached (35% H2O2, 30 minutes); BLE-I: bleached and ibuprofen oral administration (twice every 12 hours in 2 successive days); BLE-O: bleached followed by Otosporin® application in the molar surfaces (10 minutes); and BLE-C: bleaching session followed curcumin gel (10 minutes). After two days, the rats were killed for histological analysis. Statistical tests were performed (P<.05). Results: BLE, BLE-I, and BLE-C had severe inflammation or necrosis in the occlusal third of coronal pulp (P>.05); BLE-O had mild inflammation and was similar from CG (P>.05) and different from other groups (P<.05). In the middle third, BLE-O group had lower inflammatory infiltration and remained different from BLE group (P<.05); BLE, BLE-I, and BLE-C were similar (P>.05). In the cervical third, BLE, BLE-I, and BLE-C had a reduction of inflammation, without difference between bleached groups (P>.05). Conclusions: Otosporin® can reduce the inflammation in the pulp after dental bleaching; this result was not observed using ibuprofen or curcumin gel. Therefore, this study shows a new teeth bleaching posttreatment possibility using Otosporin®, which minimizes the inflammation generated to the pulp tissue by the bleaching gel. This could consequently minimize the postoperative sensitivity.
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Anti-Inflammatory Agents, Dental Pulp, Hydrogen Peroxide, Tooth Bleaching
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Inglês
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Dental Press Endodontics, v. 10, n. 1, p. 54-61, 2020.
