The shaping ability of manual ProTaper on mandibular second molars
- VernacularTitle:手用ProTaper成形下颌第二磨牙根管的实验研究
- Author:
Li HE
;
Bing FAN
;
Tuqiang HU
;
Zhuan BIAN
- Publication Type:Journal Article
- Keywords:
Mandibular second molar;
C-shaped root canal;
Manual ProTaper
- From:
Journal of Practical Stomatology
2010;26(1):117-119
- CountryChina
- Language:Chinese
-
Abstract:
Investigate the cleaning ability of manual ProTaper on mandibular second molars with C-shaped (c-shaped root) or normal root canal(separated root). Twenty mandibular second molars with C-shaped root or with separated roots were sectioned at 3.0, 5.5 and 8.0 mm from the root apex. The images of pre-preparation and F1, F2, and F3-prepapared of manual ProTaper were captured respectively. The cross-sectional areas of the canals were measured and the formula of area after treatment/area before treatment was used to calculate the area ratio. The data were analyzed by SPSS 10.0. The results showed that there was no statistically difference between cross-section root canal area ratios in two groups. Significant differences were found between the cross-section canal area ratio of F1 and F2, F1 and F3 at section 5 mm of S group, and F1 and F3 at section 3 mm of C group. The results suggested that the increasing of cross-section ratio of the two kinds of canals was not obviously concerned with their anatomical morphology.
