Effect of the gutta-percha solvents on the microhardness and the roughness of human root dentine.
The purpose of this in vitro study was to evaluate the effect of gutta-percha solvents on the microhardness and the roughness of human root dentine. Forty-five recently extracted human mandibular anterior teeth were used. The teeth were sectioned longitudinally, embedded in acrylic resin and polished. Ninety specimens were divided into three groups containing 30 teeth each. In group 1, the specimens were treated with chloroform for 15 min. In group 2, the specimens were treated with halothane for 15 min. In group 3, distilled water was used and this group was served as control. All groups were then divided into two subgroups of 15 specimens each. The specimens, in groups 1a, 2a and 3a, were submitted to Vicker's microhardness indentations. Groups 1b, 2b and 3b were used for determination of the roughness of root dentine. The data were recorded as Vicker's numbers and Ra, mum for roughness test. The results were then analysed by one-way ANOVA and post hoc Tukey tests. The results indicated that chloroform and halothane did not affect the microhardness and the roughness of root dentine (P > 0.05).
Erdemir
A
A
Department of Endodontics, Faculty of Dentistry, Selçuk University, Konya, Turkey. erdemir@selcuk.edu.tr
Eldeniz
A U
AU
Belli
S
S
D003804:Dentin; D006171:Gutta-Percha; D006244:Hardness; D006801:Humans; D012997:Solvents; D013499:Surface Properties; D014092:Tooth Root
D012997:Solvents; D006171:Gutta-Percha