PDF(Pubmed)
Abstract：
UNASSIGNED: The aim of this in vitro study was to determine the accuracy in measuring the working length (WL) using Dentaport ZX, Rootor, and a newly introduced budget friendly electronic apex locator (EAL), E-Pex Pro in two commonly simulated clinical conditions (in the presence of irrigant and blood).
UNASSIGNED: Eighty-eight single-rooted premolars were randomly assigned to two groups according to simulated clinical conditions: Group 1: Presence of irrigant (5% NaOCl) and Group 2: Presence of blood. WL was determined with all three EAL and was then compared with actual length (AL) of the tooth, which was measured using Vision Inspection System. The difference between the length measured by EAL and AL was tabulated and statistically analyzed using one-way analysis of variance (ANOVA) with post hoc Dunnett\'s test. All testing was done using two-sided tests at alpha 0.05 (95% confidence level). Thus, the criteria for rejecting the null hypothesis were \"P < 0.05.\"
UNASSIGNED: Measurement using Dentaport ZX, Rootor, and E-Pex Pro had an accuracy of 99.79%, 99.69%, and 99.64%, respectively, in Group 1 and 99.95%, 99.7%, and 99.74%, respectively, in Group 2. ANOVA revealed that the mean error value is least for Dentaport ZX followed by Rootor and then E-Pex pro EAL.
UNASSIGNED: Dentaport ZX gave better results both in the presence of NaOCl and blood followed by Rootor and E-Pex Pro EALs.
UNASSIGNED: Eighty-eight single-rooted premolars were randomly assigned to two groups according to simulated clinical conditions: Group 1: Presence of irrigant (5% NaOCl) and Group 2: Presence of blood. WL was determined with all three EAL and was then compared with actual length (AL) of the tooth, which was measured using Vision Inspection System. The difference between the length measured by EAL and AL was tabulated and statistically analyzed using one-way analysis of variance (ANOVA) with post hoc Dunnett\'s test. All testing was done using two-sided tests at alpha 0.05 (95% confidence level). Thus, the criteria for rejecting the null hypothesis were \"P < 0.05.\"
UNASSIGNED: Measurement using Dentaport ZX, Rootor, and E-Pex Pro had an accuracy of 99.79%, 99.69%, and 99.64%, respectively, in Group 1 and 99.95%, 99.7%, and 99.74%, respectively, in Group 2. ANOVA revealed that the mean error value is least for Dentaport ZX followed by Rootor and then E-Pex pro EAL.
UNASSIGNED: Dentaport ZX gave better results both in the presence of NaOCl and blood followed by Rootor and E-Pex Pro EALs.
摘要：
■这项体外研究的目的是确定使用DentaportZX测量工作长度（WL）的准确性，Rootor,以及新推出的预算友好型电子顶点定位器(EAL)，E-PexPro在两种通常模拟的临床条件下(在存在冲洗剂和血液的情况下)。
■根据模拟的临床情况，将88个单根前磨牙随机分为两组：第1组：冲洗剂（5％NaOCl）的存在和第2组：血液的存在。用所有三个EAL确定WL，然后与牙齿的实际长度（AL）进行比较，这是使用视觉检测系统测量的。将通过EAL和AL测量的长度之间的差异制成表格并使用单向方差分析(ANOVA)和事后Dunnett检验进行统计学分析。所有测试均使用α0.05(95%置信水平)的双侧测试进行。因此，拒绝原假设的标准为“P<0.05”。\"
■使用DentaportZX进行测量，Rootor,E-PexPro的准确率为99.79%,99.69%,99.64%,分别,在第一组和99.95%中，99.7%,99.74%,分别,在第2组。方差分析显示，DentaportZX的平均误差值最小，然后是Rootor，然后是E-PexproEAL。
■DentaportZX在存在NaOCl和血液的情况下都得到了更好的结果，然后是Rootor和E-PexProEAL。
■根据模拟的临床情况，将88个单根前磨牙随机分为两组：第1组：冲洗剂（5％NaOCl）的存在和第2组：血液的存在。用所有三个EAL确定WL，然后与牙齿的实际长度（AL）进行比较，这是使用视觉检测系统测量的。将通过EAL和AL测量的长度之间的差异制成表格并使用单向方差分析(ANOVA)和事后Dunnett检验进行统计学分析。所有测试均使用α0.05(95%置信水平)的双侧测试进行。因此，拒绝原假设的标准为“P<0.05”。\"
■使用DentaportZX进行测量，Rootor,E-PexPro的准确率为99.79%,99.69%,99.64%,分别,在第一组和99.95%中，99.7%,99.74%,分别,在第2组。方差分析显示，DentaportZX的平均误差值最小，然后是Rootor，然后是E-PexproEAL。
■DentaportZX在存在NaOCl和血液的情况下都得到了更好的结果，然后是Rootor和E-PexProEAL。
