摘要
目的:评价Root ZX在临床上测量根管长度的准确性,分析影响Root ZX测量准确性的因素。方法:选择临床上需作根管治疗的患者52例,测量Root ZX读数为‘0.5’时锉尖离影像根尖的距离,再用Ingle照片法确定牙齿的工作长度,比较Root ZX电测仪在根管内干、湿条件下的测量结果。结果:以距影像根尖0～2 mm为标准,Root ZX的准确率可达96.2%;不同性别、年龄组Root ZX的测量值的差异无统计学意义;确定根管工作长度时,Root ZX电测仪在根管湿润时的测量值与Ingle照片法估计值间的差异无统计学意义。结论:Root ZX根尖定位仪测量根管长度的准确性高,且不受患者性别、年龄、根尖周透射影的影响,根管含生理盐水时能提高其准确性。
Objective： （i） to assess the accuracy of the Root ZX for measuring root canal length ; （ii） to explore the fac- tors which influenced the measurements of Root ZX. Methods ： Fifty - two patients were selected for the study. The dis- tance between the tip of probe file and radiographic apex was recorded when Root ZX indicated ＇ 0. 5 ＇ readings. Every root canal working length was determined by Ingle method. The measurements of Root ZX under dry canal condition were compared with those under moist canal condition. Results：Root ZX was 96. 2% accurate in positioning the probe 0 to 2ram short of the radiographic apex. No significant difference existed in the measurements of different age or gender. No statistical significance was found between the measurements of Root ZX under moist canal condition and radiographic ones. Conclusions：There was high accuracy of measuring root canal length with Root ZX apex locator, which wasn＇t in- fluenced by patient＇s age, gender and periapical radiolucency. Normal saline in canal can improve the performance of Root ZX.
出处
《航空航天医学杂志》
2013年第1期5-7,共3页
Journal of Aerospace medicine
关键词
电子测量
根管
放射影像
electronic measurement
root canal
radiograph
