Lima Ilana-Thais-de Freitas, Paula Ana-Letícia-Linhares-de Sousa, Palheta-Filho Reuton-Dos Santos, Santos Amanda-Brito, Freitas Nathalia-de Aguiar, Candeiro George-Táccio-de Miranda
MSC, Department of Dentistry, Unichristus, Fortaleza, Ceará, Brazil.
DDS, Department of Dentistry, Unichristus, Fortaleza, Ceará, Brazil.
J Clin Exp Dent. 2024 Jan 1;16(1):e18-e24. doi: 10.4317/jced.61003. eCollection 2024 Jan.
To evaluate the accuracy of four different Electronic Foraminal Locators (EFLs): Root ZX II (J. Morita, Tokyo, Japan), Romiapex A15 (Romidan, Kiryat-Ono, Israel), FinePex (Schuster, Porto Alegre, Brazil), and VDW Gold (VDW, Munich, Germany), in determining root canal length.
Twenty-seven human single-rooted teeth had their crowns sectioned at the cementoenamel junction, and the actual length of the tooth was obtained by visualizing with an operative microscope a #15 file placed adjacent to the apical foramen. The teeth were instrumented with R25 and R40 files, and at the end of each instrumentation, measurements of the lengths of the root canals were made with #25 and #40 files. The data were statistically analyzed by ANOVA and chi-square tests and were considered significant when <0.05. All devices showed a tendency to underestimate measurements by 0.25 mm diameter.
The mean accuracy of the Root ZX II appliance was statistically lower than the other EFLs (<0.001). For the 0.40 mm diameter, the mean accuracy of the Romiapex A15 appliance was statistically higher than the other LEFs (<0.001). However, when the diameter was 0.40 mm, only the Romiapex A15 device tended to overmeasure. Regarding the acceptable limits of variation, it was observed that the devices showed similar efficiency in determining odontometry (>0.05), both with diameters of 0.25 mm and 0.40 mm.
It was concluded that the devices presented similar and adequate efficacy when observing the limits of acceptable measurements. It was observed that increasing the apical diameter did not influence the accuracy of EFLs in determining root canal lengths. Endodontics, working length, electronic foraminal locators, endodontic treatment.
评估四种不同的电子根尖定位仪（EFLs）：Root ZX II（日本东京森田公司）、Romiapex A15（以色列基里亚托诺Romidan公司）、FinePex（巴西阿雷格里港舒斯特公司）和VDW Gold（德国慕尼黑VDW公司）在确定根管长度方面的准确性。
27颗人类单根牙在牙骨质牙釉质交界处截冠，通过手术显微镜观察与根尖孔相邻放置的#15锉来获取牙齿的实际长度。用R25和R40锉对牙齿进行预备，在每次预备结束时，用#25和#40锉测量根管长度。数据采用方差分析和卡方检验进行统计学分析，当P<0.05时认为具有统计学意义。所有器械均有将测量值低估0.25 mm直径的趋势。
Root ZX II器械的平均准确性在统计学上低于其他EFLs（P<0.001）。对于0.40 mm直径，Romiapex A15器械的平均准确性在统计学上高于其他定位仪（P<0.001）。然而，当直径为0.40 mm时，只有Romiapex A15器械有测量值偏大的趋势。关于可接受的变异限度，观察到在确定牙测量值方面，器械在直径为0.25 mm和0.40 mm时显示出相似的效率（P>0.05）。
得出结论，当观察可接受测量限度时，这些器械表现出相似且足够的有效性。观察到增加根尖直径并不影响EFLs在确定根管长度方面的准确性。牙髓病学、工作长度、电子根尖定位仪、牙髓治疗。
