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Quintessence International
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Quintessence Int 28 (1997), No. 3     1. Mar. 1997
Quintessence Int 28 (1997), No. 3  (01.03.1997)

Page 191-196


Debridement by operators with varying degrees of experience: A comparative study on manikins
Kocher / Riedel / Plagmann
The treatment of periodontally diseased root surfaces with power-driven instruments is becoming increasingly important as an alternative to the use of hand instruments. Root surfaces of artificial teeth on a manikin were debrided under simulated flap operation conditions to determine if effectiveness was dependent on the instrument used (curettes or a modified sonic scaler tip) and/or the operator's degree of experience. Two quadrants were treated with each instrument. A morphometric evaluation followed. Debridement was faster with the diamond-coated sonic scaler tip than with hand instruments. With the sonic scaler, the time necessary for tre atment was reduced by 30%. The experienced operators treated about 80% of the root surface, while the inexperienced operators treated only about 65%. Treatment qual ity depended on the operator and not on the instrument used.