Journal of Indian Society of Periodontology
Journal of Indian Society of Periodontology
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ORIGINAL ARTICLE
Year : 2015  |  Volume : 19  |  Issue : 1  |  Page : 18-24

Efficacy versus health risks: An in vitro evaluation of power-driven scalers


Department of Conservative Dentistry and Periodontology, School of Dental Medicine, University of Kiel, Kiel, Germany

Correspondence Address:
Christian Graetz
Clinic for Conservative Dentistry and Periodontology, School of Dental Medicine, Christian-Albrechts-University at Kiel, Arnold-Heller-Str. 3, Haus 26, Kiel 24105
Germany
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-124X.145796

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Background: Power-driven instrumentation of root surfaces during supportive periodontal therapy is an alternative to hand instrumentation. The purpose of this pilot in vitro study was to investigate the efficacy of sub- and supragingival plaque removal with a sonic (AIR: Synea, W and H, Bόrmoos, Austria) and two ultrasonic devices (TIG: Tigon+, W and H, Bόrmoos, Austria; VEC: Vector, Dόrr, Bietigheim-Bissingen, Germany) as well as the health-risk for dental professionals during treatment. Materials and Methods: The power-driven devices were utilized to remove plaque from model teeth in dummy heads. The percentage of residual artificial plaque after 2 min of supra- or subgingival instrumentation was calculated by means of image-processing techniques at four sites (n = 576) of each tooth. The Health-Risk-Index (HRI: spatter/residual plaque quotient) with the different power-driven devices was assessed during treatment. Results: The smallest amounts of residual plaque were found for the sonic device AIR (8.89% ± 10.92%) and the ultrasonic scaler TIG (8.72% ± 12.02%) (P = 0.707). Significantly more plaque was remained after the use of the ultrasonic scaler VEC (18.76% ± 18.07%) (P < 0.001). Irrespectively of the scaler, efficacy was similar sub- (10.7% ± 11.6%) and supragingivally (13.5% ± 17.2%) (P = 0.901). AIR/TIG demonstrated equal residual amounts of plaque sub- (P = 0.831) as well as supragingivally (P = 0.510). However, AIR/VEC and TIG/VEC were significantly in favor of AIR and TIG (P < 0.001). In contrast, the lowest HRI was found after using VEC (0.0043) and differed considerably for AIR (0.2812) and TIG (0.0287). Conclusion: Sonic devices are as effective as ultrasonic devices in the removal of biofilm but bear a higher risk to the dental professional's health concerning the formation of spatter.


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