نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشکده دندانپزشکی، دانشگاه علوم پزشکی کرمانشاه، کرمانشاه، ایران
2 گروه پریودنتیکس، دانشکده دندانپزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران
3 گروه اندودانتیکس، دانشکده دندانپزشکی، دانشگاه علوم پزشکی کرمانشاه، کرمانشاه، ایران
4 گروه رادیولوژی دهان فک و صورت، دانشکده دندانپزشکی، دانشگاه علوم پزشکی کرمانشاه، کرمانشاه، ایران
چکیده
تازه های تحقیق
مهدی ضیایی: PubMed, Google Scholar
سید امیرحسین حجازی: PubMed, Google Scholar
صابر خزاعی: PubMed, Google Scholar
مریم قاضی زاده: PubMed, Google Scholar
عنوان مقاله [English]
نویسندگان [English]
Introduction: Root canal preparation is a crucial phase of endodontic therapy, significantly impacting treatment outcomes. One of the main procedural complications is canal transportation, defined as an unintended deviation from the original canal axis due to excessive or asymmetrical dentin removal. This study aimed to compare canal transportation and canal-centering ability of two rotary file systems, Mtwo and Denco, in mesio-buccal canals of extracted human mandibular molars with curvatures ranging from 20° to 40°, using cone-beam computed tomography (CBCT).
Materials and Methods: In this in vitro experimental study, fifty extracted mandibular molars with 20–40° curvature, measured by Schneider’s technique, were randomly assigned to two groups. The first group was instrumented with Mtwo rotary files and the second with Denco rotary files. CBCT scans were obtained before and after instrumentation at 1, 3, 5, and 7 mm from the apex. Canal transportation and centering ability were calculated and statistically analyzed using an independent t-test and Mann–Whitney U test.
Results: Across all examined levels, no statistically significant differences were found between Mtwo and Denco systems in terms of canal transportation and centering ability (P > 0.05).
Conclusion: Within the limitations of this study, Mtwo and Denco rotary file systems demonstrated comparable performance in preserving the original canal anatomy. Both systems can therefore be considered reliable and safe options for the preparation of curved root canals