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KMID : 1137820230440020109
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2023 Volume.44 No. 2 p.109 ~ p.117
Effect of Feedrate and Specimen Shape on Cutting Force and Surface Roughness of Ultrasonic Dental Surgical Instrument
Kim Sang-Ho

Yang Seung-Han
Lee Joong-Ho
Shin Sung-Ui
Abstract
In this study, the effect of the shape of the specimen and the feedrate of the dental ultrasonic surgical instrument on the cutting force and surface roughness of the specimen is analyzed. Experimental specimens were made of SAWBONES artificial bone materials in square and spherical specimens. In addition, the cutting feedrate of the surgical instrument was controlled through the developed moving system. The cutting force generated when cutting the specimen was measured through a force sensor. After the experiment, the cutting surface of the specimen was observed through a three-dimensional optical microscope and the surface roughness was measured. Through one-way ANOVA, the effect of each specimen shape and feed rate on surface roughness was analyzed. As a result of the experiment, the cutting force increased proportionally in the initial feed rate increase stage, but the increase in cutting force decreased as the feed rate continued to increase. Also, the cutting force showed a difference according to the shape of the specimen. The spherical specimen with a relatively small cutting surface area had less cutting force than the square specimen. However, as a result of one-way ANOVA, it was found that the specimen shape and feed rate did not affect the surface roughness. In future studies, it is expected to be used for comparative analysis of ultrasonic surgical instruments and correlation analysis between cutting factors.
KEYWORD
Artificial Bone, Cutting Performance, Ultrasonic Bone surgery, Surface roughness
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