Comparison of newly formed microcracks after instrumentation using Protaper Next, Reciproc and Self-Adjusting File systems

• Main Authors: Fatih Çakıcı, Elif Bahar Çakıcı, Burak Sadık, Ali Keleş, Funda Fundaoglu Küçükekenci
• Format: Article
• Language: English
• Published: Istanbul University 2019-01-01
• Series: European Oral Research
• Subjects: Dentinal microcracks; micro–computed tomography; Protaper Next; Reciproc; Self-Adjusting File
• Online Access: https://cdn.istanbul.edu.tr/file/1CD58DF90A/59D008F5A7F748DCAF238908C61E9E18?doi=10.26650/eor.201972917418

Purpose The purpose of the present study is to assess the rate of newly formed microcracks comparatively during root canal instrumentation by using ProTaper Next, Reciproc, and Self-Adjusting File systems using micro-computed tomography. Subjects and Methods Thirty mesial roots of mandibular molars were randomly assigned to 3 experimental groups (n = 10) as follows, ProTaper Next, Reciproc and Self-Adjusting File system. Preoperative and postoperative scans were obtained at the isotropic resolution of 13.68 μm. Cross-section images were examined to identify the presence of newly formed dentinal microcracks. Results The Self-Adjusting File and Reciproc systems caused a higher rate of new microcrack formation than the ProTaper Next group (p < 0.001). There were also significant differences in the new microcrack formation between Reciproc and Self-Adjusting File groups (p < 0.001). Conclusion Reciproc and Self-Adjusting File systems caused a higher rate of newly formed microcraks compared to ProTaper Next system.