Tittle Mia, Dunlap Craig A, Scott Raymond, Arias Ana, Davis Scott, Peters Ove
Department of Endodontics, University of the Pacific Arthur A. Dugoni School of Dentistry, San Francisco, California, USA.
Department of Conservative and Prosthetic Dentistry, School of Dentistry, Complutense University, Madrid, Spain.
Aust Endod J. 2023 Sep;49 Suppl 1:253-258. doi: 10.1111/aej.12727. Epub 2022 Dec 8.
The aims of this study were to determine the efficacy of the KontrolFlex™ Accufile™ compared to the READY•STEEL™ Flexofile® using an electronic apex locator and to evaluate the instrument's design via scanning electron microscopy. Actual canal lengths of 30 extracted teeth were determined under magnification. An alginate model was used to determine experimental canal lengths with the Root ZX II apex locator (EAL) and size #10 Accufiles and Flexofiles. Differences between actual lengths and experimental lengths were compared with Student's t test. The average experimental lengths were short of the actual length by -0.10 mm (±0.34) and -0.12 mm (±0.16) for the Accufile and Flexofile, respectively with no statistical difference (p > 0.05). SEM images revealed similar non-cutting Batt tips and a square cross-section for the Accufile and triangular for the Flexofile. Both files provided similarly high levels of reliability when used with the Root ZX II EAL.
本研究的目的是使用电子根尖定位仪确定KontrolFlex™ Accufile™与READY•STEEL™ Flexofile®相比的疗效，并通过扫描电子显微镜评估该器械的设计。在放大条件下确定30颗拔除牙齿的实际根管长度。使用藻酸盐模型，通过Root ZX II根尖定位仪（EAL）以及10号Accufile和Flexofile确定实验根管长度。实际长度与实验长度之间的差异采用学生t检验进行比较。Accufile和Flexofile的平均实验长度分别比实际长度短-0.10毫米（±0.34）和-0.12毫米（±0.16），无统计学差异（p>0.05）。扫描电子显微镜图像显示，Accufile的非切割Batt尖端和方形横截面与Flexofile的三角形横截面相似。当与Root ZX II EAL一起使用时，两种锉具都具有同样高的可靠性。
