Comparison of the effects of different instrumentation techniques on root surface roughness and cement loss using microcomputed tomography: An in-vitro study.

Abstract

OBJECTIVES\nThe purpose of this study was to compare the effectiveness of three different instruments on the cement loss and roughness of the root surface following scaling and root planning (SRP) using micro computed tomography (micro CT).\n\n\nMETHODS\nIn this experimental study, 60 single-rooted extracted human teeth were used and divided into three groups. All teeth were scanned with micro-CT before and after SRP. Group 1: SRP was performed by Gracey curette, Group 2: SRP was performed by using an ultrasonic device, and Group 3: SRP was performed by using a piezzoultrasonic device. Cement loss and porosity of the root surface were analyzed by micro-computed tomography, which is an current imaging technique that provides high-quality images and allows for qualitive and quantitative analysis of samples.\n\n\nRESULTS\nResults of our study revealed that initial porosity values were 1.60%, 1.25%, 1.59% for the group 1,2,3, and 0.93%, 0.86, and 0.80 after SRP respectively. Although Group 3 had the least surface roughness, there was no statistically significant difference between the groups. Cement loss following SRP was 47.15μmin the piezzo ultrasonic device group, 59.44 µm in the ultrasonic device, and 134.163 µm in the Gracey curette group respectively. The highest cement loss was seen in the Gracey curette group and there was a significant difference between the three groups.\n\n\nCONCLUSIONS\nIn conclusion, it was observed that surface roughness decreased and similar surface roughness was obtained with all three methods, but more cementum loss was observed with Gracey curette. Therefore, ultrasonic devices appear to be a viable alternative to manual instrumentation with curettes.