Calcium hydroxide mixed with camphoric p-monochlorophenol or chlorhexidine in delayed tooth replantation |
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Authors: | Trevisan Carolina Lunardelli Panzarini Sônia Regina Brandini Daniela Atili Poi Wilson Roberto Luvizuto Eloá Rodrigues Dos Santos Cláudia Letícia Vendrame Saito Célia Tomiko Hamada Matida |
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Affiliation: | Department of Surgery and Integrated Clinic, UNESP–Universidade Estadual Paulista, Dentistry School of Ara?atuba, Ara?atuba, S?o Paulo, Brazil. |
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Abstract: | This study evaluated the repair process after delayed replantation of rat teeth, using calcium hydroxide (Ca(OH)2) mixed with camphorated p-monochlorophenol (CMCP), chlorhexidine 2% (CHX), or saline as temporary root canal dressing to prevent and/or control inflammatory radicular resorption. Thirty Wistar rats (Rattus norvegicus albinos) had their right upper incisor extracted, which was bench-dried for 60 minutes. The dental papilla, the enamel organ, the dental pulp, and the periodontal ligament were removed. The teeth were immersed in 2% acidulated-phosphate sodium fluoride solution for 10 minutes. The root canals were dried with absorbent paper cones and divided into 3 groups of 10 animals according to root canal dressing used: group 1: Ca(OH)2 + saline, group 2: Ca(OH)2 + CMCP, and group 3: Ca(OH)2 + CHX 2%. Before replanting, the teeth sockets were irrigated with saline. Histological analysis revealed the presence of inflammatory resorption, replacement resorption, and ankylosis in all 3 groups. Statistical analysis showed a significant difference between group 3 and the other groups. The use of Ca(OH)2 mixed with CMCP or CHX did not show an advantage over the use of Ca(OH)2 mixed with saline in preventing and/or controlling inflammatory resorption in delayed replantation of rat teeth. |
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