Performance evaluation of a dental handpiece in simulation of clinical finishing using a novel 2DOF <i>in vitro</i> apparatus
Date
2006-08-01
Authors
Li, J
Yang, Z Y
Mei, J P
Huang, T
Qu, S F
Song, X F
Yin, L
Journal Title
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Volume Title
Publisher
SAGE Publications (UK and US)
Abstract
This paper reports on the performance evaluation of a dental handpiece in simulation of clinical finishing using a novel two-degrees-of-freedom (2DOF) in vitro apparatus. The instrumented apparatus consisted of a two-dimensional computer-controlled coordinate worktable carrying a dental handpiece, a piezoelectric force dynamometer, and a high-speed data acquisition and signal conditioning system for simulating the clinical operations and monitoring the dental finishing processes. The performance of the dental handpiece was experimentally evaluated with respect to rotational speed, torque, and specific finishing energy under the applied clinical finishing conditions. The results show that the rotational speeds of the dental handpiece decreased by increasing either the depth of cut or the feed rate at a constant clinically applied air pressure and water flowrate. They also decreased when increasing both the tangential and normal finishing forces. The specific finishing energy decreased with an increase in either depth of cut or feed rate, while the finishing torque increased as either the depth of cut or the feed rate was increased. Implications of these results were to provide guidance for proper applications of dental handpieces in clinical practice.
Description
Keywords
dental, handpiece, in vitro, finishing, rotational, speed, torque, energy, evaluation, performance
Citation
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Source
Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Type
Journal article
Book Title
Entity type
Access Statement
Open Access