P Shruthi, M Jaya Nagendra Krishna, Reddy Jayaprada, N Nikhil Kumar, Jayyarapu Dilip, Punna Rajani, R Divya, S Anuhya
Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences, Nalgonda, IND.
Prosthodontics, Kamineni Institute of Dental Sciences, Nalgonda, IND.
Cureus. 2024 Jun 10;16(6):e62077. doi: 10.7759/cureus.62077. eCollection 2024 Jun.
Root canal therapy is a vital procedure for saving teeth by removing infection and cleaning the complex root canal system. However, a delicate balance exists between thorough cleaning and preserving tooth strength. The study aims to evaluate the instrumentation effect of three innovative file systems, XP-endo® shaper, Reciproc®, and Self-adjusting file (SAF) on fracture resistance of mandibular premolars.
Thirty single-rooted mandibular premolars were collected; a standard access cavity was prepared and the working length was established 1 mm short of the apex. The teeth were randomly divided into three groups(n=10). In Group 1, the shaping of the specimens was achieved using XP-endo® shaper; in Group 2, it was instrumented using Reciproc® file; and in Group 3, it was instrumented using SAF. All samples were decoronated and the roots were mounted vertically in acrylic resin and subjected to fracture resistance under a universal testing machine.
Intergroup analysis was done by one-way ANOVA followed by Bonferroni post hoc test, which did not report a statistically significant difference (p>0.05).
All three tested file systems were similar in fracture resistance. XP-endo® shaper exhibited better fracture resistance on root canal instrumentation when compared to Reciproc® and SAF although they are not statistically significant.
根管治疗是通过去除感染物质并清理复杂的根管系统来保存牙齿的关键步骤。然而，在彻底清洁与保持牙齿强度之间存在着微妙的平衡。本研究旨在评估三种创新锉系统，即XP-endo® 成型锉、Reciproc® 锉和自调式锉（SAF）对下颌前磨牙抗折性能的预备效果。
收集30颗单根下颌前磨牙；制备标准开髓腔，并将工作长度确定为距根尖1mm处。将牙齿随机分为三组（n = 10）。第1组使用XP-endo® 成型锉对样本进行预备；第2组使用Reciproc® 锉进行预备；第3组使用SAF进行预备。所有样本均去除牙冠，将牙根垂直固定在丙烯酸树脂中，并在万能试验机上进行抗折测试。
采用单因素方差分析进行组间分析，随后进行Bonferroni事后检验，结果显示差异无统计学意义（p>0.05）。
所有三种测试的锉系统在抗折性能方面相似。与Reciproc® 锉和SAF相比，XP-endo® 成型锉在根管预备时表现出更好的抗折性能，尽管差异无统计学意义。
