Comparative study on the effect of ultrasonic instruments on the root surface in vivo |
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Authors: | Fábio André Santos Márcia Thaís Pochapski Paola Cristina Leal Patrícia Panizzi Gimenes-Sakima Jr" target="_blank">Elcio MarcantonioJr |
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Institution: | Department of Periodontics, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil. fasantos11@gmail.com |
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Abstract: | The present study was designed to investigate the effectiveness of different ultrasonic instruments on the root surface. Fourteen
patients with 35 single root teeth designated for extraction were recruited to the present study. Teeth were assigned to four
experimental groups: group 1, piezoelectric ultrasonic device; group 2, magnetostrictive ultrasonic device; group 3, hand
instrumentation; and group 4, untreated teeth (control). After instrumentation, the teeth were extracted and the presence
of residual deposits (roughness and root surfaces characteristics) were analyzed. The results showed that residual deposits
were similar in all tested groups: piezoelectric, 8.7%; magnetostrictive, 9.7%; hand instrumentation, 11.1% and control, 76.4%.
There were statistically significant differences between control and all the experimental groups (p < 0.0001). With respect to roughness parameters evaluation, Ra and Rz of the roots treated with the different instruments showed a similar pattern (p > 0.05), but for Rt and Ry, a significant difference was observed (p < 0.05) among hand instrumentation and ultrasonic devices. SEM analysis revealed a similar root surface pattern for the ultrasonic
devices, but curettes showed many instrumental scratches, deep gouges, and a relatively large amount of dentin was removed.
Within the limits of the study, although the instruments produced similar results, root surfaces instrumentated with curettes
were rougher and had more root surface tissue removed than with the ultrasonic device. |
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Keywords: | Dental scaling Root planning Dental instruments Dental calculus Dental plaque |
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