Root canal cleanliness after preparation with ultrasonic handpiece and hand instruments: An in vitro comparative scanning electron microscope study

• Published in: Endodontology : journal of Indian Endodontic Society Vol. 30; no. 1; pp. 32 - 37
• Main Authors: Rao, Sunil, Rao, R, Sunil Kumar, V, Babannavar, Roopa, Muniyappa, Manjunath, Naman, Shah
• Format: Journal Article
• Language: English
• Published: Wolters Kluwer - Medknow Publications 01.01.2018; Medknow Publications and Media Pvt. Ltd; Wolters Kluwer Medknow Publications
• Subjects: Comparative analysis; Debris; Dental equipment; Electron microscopy; Root canal therapy; scanning electron microscope; Scanning electron microscopes; smear layer; Ultrasonic cleaners; ultrasonic files; smear layer; ultrasonic files; Debris; scanning electron microscope
• ISSN: 0970-7212
• DOI: 10.4103/endo.endo_60_17

Aim and objective: This study aims to compare the efficacy of root canal cleanliness using hand instrumentation and ultrasonic handpiece under the scanning electron microscope. Materials and Methods: Forty five central incisor were collected and access opening was done. cleaning and shaping of all the samples were done with three different groups 1- Ultrasonic file. group-2 with Hand files and Group-3 were prepared with Ultrasonic + hand files and debris and smear layer were evaluated with SEM . Results: Group 1 (ultrasonic) removed smear layer superiorly, followed by Group 3 (ultrasonic/hand instrumentation) and Group 2 (hand instrumentation), and Group 3 (ultrasonic/hand instrumentation) showed superior cleanliness of debris followed by Group 1 (ultrasonic) and Group 2 (hand instrumentation). Conclusion: (1) At the apical, middle, and coronal third level for removal of debris, Group 3 showed superior cleanliness followed by Group 1 and Group 2. (2) At the apical, middle, and coronal third level for removal of smear layer, Group 1 showed superior cleanliness followed by Group 3 and Group 2.