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首页> 外文期刊>Pediatric dentistry >Root canal length determination by different methods in primary teeth: An in vivo study
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Root canal length determination by different methods in primary teeth: An in vivo study

机译：通过不同方法确定乳牙根管长度的体内研究

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Purpose: To evaluate and compare the accuracy of root canal lengths (RCLs) in primary teeth using different clinical methods. Methods: RCLs of 70 extracted human primary single-rooted teeth were estimated in vivo by a calibrated investigator using the electronic apex locator (EAL) method, radiovisiography (RVG), conventional radiography (X-ray), and tactile sensation method (TSM). The teeth were categorized into Group 1 (G1; teeth without physiological root resorption [PRR]); Group 2 (G2; teeth with one-fourth apical PRR); and Group 3 (G3; teeth with one-fourth to three-fourths lingual PRR). RCLs determined by various in vivo methods were compared with the ex vivo actual root canal length method (ARCL), as determined by stereomicroscope. Data obtained were compared using analysis of variance, Newman-Keuls test, and Student's test. Results: In Groups 1 and 2, the mean RCL determined by EAL was closest to that of the gold standard ARCL, followed by RVG, X-ray, and TSM. In G3, the mean RCL determined by EAL was closest to ARCL, followed by TSM, RVG, and X-ray. Conclusion: A fifth-generation electronic apex locator was found to be useful in accurately determining root canal lengths of primary teeth with or without physiological root resorption.
机译：目的：使用不同的临床方法评估和比较乳牙中根管长度（RCL）的准确性。方法：使用电子先头定位仪（EAL），放射线成像（RVG），常规放射线照相（X射线）和触感法（TSM），由校准过的研究人员在体内估算70颗提取的人类单根乳牙的RCL。 。牙齿分为1组（G1;无生理性根吸收[PRR]的牙齿）;第1组。第2组（G2;具有四分之一顶端PRR的牙齿）;第3组（G3;牙齿PRR的四分之一至四分之三）。将通过各种体内方法确定的RCL与通过体视显微镜确定的离体实际根管长度方法（ARCL）进行比较。使用方差分析，Newman-Keuls检验和St​​udent检验比较获得的数据。结果：在第1组和第2组中，由EAL确定的平均RCL最接近金标准ARCL的RCL，其次是RVG，X射线和TSM。在G3中，由EAL确定的平均RCL最接近ARCL，其次是TSM，RVG和X射线。结论：发现第五代电子根尖定位仪可用于准确确定有或没有生理性根吸收的乳牙的根管长度。

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