Title: Experience of endodontic failure in 82 molars
Abstract: Objective To investigate the causes of endodontic failure in molars.Methods The X-ray films of 82 molars in 76 patients before and after unsuccessful treatment were observed.And we analyzed the causes of failure from the length,shape,number,calcification and curvature of roots,and sum up the experiences.Results The reasons of endodontic failure in 82 molars included 56 cases (68.3%) with fistulous tract,discomfort and bite jaw pain in gingiva.16 cases (19.5%) needed repeated diagnosis for recovery treatment.10 cases (12.2%) of teeth defect or secondary caries.The 82 molars of endodontic failure manifested on missing of the root (62,75.6%),filling materials extruded (11,13.4%),apical leakage (5,6.1%) and root canal omissions (4,4.9%).Conclusion Molars' root canal treatment is very difficult.The operators must improve their technical levels and clinical experiences.
Key words:
Molar; Root canal treatment; Root canal filling; Root canal system
Publication Year: 2013
Publication Date: 2013-03-15
Language: en
Type: article
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