The Study of Dental CVDD Burs with Ultrasonic System on Enamel Removal Characteristics
Date Issued
2012
Date
2012
Author(s)
Lee, Chung-Ling
Abstract
The aim of this study was to increase enamel removal rate of dental diamond burs with ultrasonic system. In this study, the cutting performances of burs made by electroplated diamond and by chemical vapor deposition diamond (CVDD) were compared, and the mechanism of enamel removal of CVDD was analyzed. Further, CVDD burs with new surface morphology created by heating at 700℃ were proposed. The results revealed that the cutting performances of CVDD burs are better than the electroplated diamond one. When preparing cavities on enamel, the direction of enamel prism influences a lot. Working direction parallel to the enamel prism gets better performance than perpendicular to it. After 10 minutes heating in Nitrogen, the enamel removal rate of parallel and vertical enamel prism increased respectively in 60% and 30% than original.
Subjects
ultrasonic
enamel
CVDD.
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-101-R00522713-1.pdf
Size
23.54 KB
Format
Adobe PDF
Checksum
(MD5):91498c4a140d2eaf282f4abfd88bede6