摘要
目的:探讨RootZX根管长度电测仪测量后牙根管工作长度的临床效果。方法:采用RootZX对60例79个后牙186个根管进行根管长度测量,以此长度进行根管预备,按测量长度插入牙胶尖摄X线牙片,计算出实际工作长度,计算RootZX测量根管工作长度的准确率。结果:在实际工作长度±0.5mm范围内,ZootZX测量准确率为87.6%,测量活髓和死髓牙根管工作长度的准确率无显著性差异(P>0.05)。结论:ZootZX根管长度测定仪测定根管工作长度准确性较高。
Objective: To investigate the clinical effect of Root ZX electronic apex locator in measuring posterior teeth root canal working length. Method: 186 root canals working length of 60 patients with 79 posterior teeth were measured by Root ZX and calculate by X-ray. Result: An accurate rate of real working length ranged ± 0.5 mm was 87.6%. The difference between vital pulp and necrotic pulp was not significant( P 〉0.05). Concluion: Root ZX is accurate in root canal working length measuring.
出处
《临床口腔医学杂志》
2005年第12期742-743,共2页
Journal of Clinical Stomatology
关键词
根管长度测量仪
后牙
工作长度
electronic apex locator posterior teeth
working length