Chetan R Patil1, Veerendra Uppin. 1. Department of Conservative & Endodontics, KLE's V K Institute of Dental Sciences, Belgaum, Karnataka, India. chetsrpats@yahoo.com
Abstract
CONTEXT: To evaluate the effect of widely used endodontic irrigating solutions on root dentin microhardness and surface roughness. MATERIALS AND METHODS: One hundred twenty, non-carious extracted human permanent incisor teeth were selected. The crowns of the teeth were sectioned and the roots were separated longitudinally to get 240 specimens. These specimens were then divided into six groups according to the irrigating solutions used. The solutions used were 5% and 2.5% NaOCl solutions, 3% H2 O2 , 17% EDTA solution, 0.2% chlorhexidine gluconate, and distilled water. Then, the specimens were subjected to microhardness and roughness testing. The data were analyzed using ANOVA and Tukey's multiple comparison tests. RESULTS: The results of this study indicated that all irrigation solutions, except 0.2% chlorhexidine gluconate, decreased the microhardness of root dentin, and 3% H2 O2 and 0.2% chlorhexidine gluconate had no effect on surface roughness. CONCLUSIONS: Within the limitation of this study, it is concluded that 0.2% chlorhexidine gluconate seems to be an appropriate irrigation solution, because of its harmless effect on the microhardness and surface roughness of root canal dentin.
CONTEXT: To evaluate the effect of widely used endodontic irrigating solutions on root dentin microhardness and surface roughness. MATERIALS AND METHODS: One hundred twenty, non-carious extracted human permanent incisor teeth were selected. The crowns of the teeth were sectioned and the roots were separated longitudinally to get 240 specimens. These specimens were then divided into six groups according to the irrigating solutions used. The solutions used were 5% and 2.5% NaOCl solutions, 3% H2 O2 , 17% EDTA solution, 0.2% chlorhexidine gluconate, and distilled water. Then, the specimens were subjected to microhardness and roughness testing. The data were analyzed using ANOVA and Tukey's multiple comparison tests. RESULTS: The results of this study indicated that all irrigation solutions, except 0.2% chlorhexidine gluconate, decreased the microhardness of root dentin, and 3% H2 O2 and 0.2% chlorhexidine gluconate had no effect on surface roughness. CONCLUSIONS: Within the limitation of this study, it is concluded that 0.2% chlorhexidine gluconate seems to be an appropriate irrigation solution, because of its harmless effect on the microhardness and surface roughness of root canal dentin.
Authors: Marta Barón; Carmen Llena; Leopoldo Forner; María Palomares; Cristina González-García; Manuel Salmerón-Sánchez Journal: Med Oral Patol Oral Cir Bucal Date: 2013-07-01
Authors: Talita Tartari; Patrícia de Almeida Rodrigues Silva E Souza; Bruno Vila Nova de Almeida; José Otávio Carrera Silva Júnior; Oscar Facíola Pessoa; Mario Honorato Silva E Souza Junior Journal: Int J Dent Date: 2013-07-25