@article{ART002589151},
author={Seung-Hwan Ong and Jong-Soo Kim and Kim Jongbin and JISUN SHIN and Seunghoon Yoo},
title={Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth},
journal={Journal of the Korean academy of pediatric dentistry},
issn={1226-8496},
year={2020},
volume={47},
number={2},
pages={205-212},
doi={10.5933/JKAPD.2020.47.2.205}
TY - JOUR
AU - Seung-Hwan Ong
AU - Jong-Soo Kim
AU - Kim Jongbin
AU - JISUN SHIN
AU - Seunghoon Yoo
TI - Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth
JO - Journal of the Korean academy of pediatric dentistry
PY - 2020
VL - 47
IS - 2
PB - The Korean Academy Of Pediatric Dentistry
SP - 205
EP - 212
SN - 1226-8496
AB - The purpose of this study is to evaluate the validity of primary anterior zirconia crown made with Computer Aided Design/Computer Aided Manufacturing (CAD/CAM) technology by analyzing fracture strength and translucency parameter.
Zirconia crown was designed with CAD software, using 3D scanned data of #61 tooth model. Crown fabrication was performed with CAM machine using zirconia block. Zirconia crowns were divided into 3 groups according to thickness(0.3, 0.5, and 0.7 mm), and fracture strength was compared with 1.0 mm thickness of resin strip crown. The compressive force was applied with universal testing machine at 30° along the incisal edge at increments of 1 mm/min.
For translucency evaluation, 0.3, 0.5, and 0.7 mm thickness of zirconia specimens were fabricated and translucency was measured with spectrophotometer.
Among zirconia groups, there was a significant increase in fracture strength as thickness increased (p < 0.05). The fracture strength of zirconia crown was significantly higher than resin strip crown in all groups (p < 0.05). Translucency parameter was highest in 0.3 mm group, and significantly decreased as thickness increased to 0.5 and 0.7 mm (p < 0.05).
Thin primary anterior zirconia crown can be designed and fabricated according to individual needs by using CAD/CAM.
Restoration with thin crown would reduce the amount of tooth reduction, risk of pulp exposure, and make more esthetic restoration possible.
KW - CAD/CAM;Zirconia crown;Primary teeth;Esthetic restoration
DO - 10.5933/JKAPD.2020.47.2.205
ER -
Seung-Hwan Ong, Jong-Soo Kim, Kim Jongbin, JISUN SHIN and Seunghoon Yoo. (2020). Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth. Journal of the Korean academy of pediatric dentistry, 47(2), 205-212.
Seung-Hwan Ong, Jong-Soo Kim, Kim Jongbin, JISUN SHIN and Seunghoon Yoo. 2020, "Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth", Journal of the Korean academy of pediatric dentistry, vol.47, no.2 pp.205-212. Available from: doi:10.5933/JKAPD.2020.47.2.205
Seung-Hwan Ong, Jong-Soo Kim, Kim Jongbin, JISUN SHIN, Seunghoon Yoo "Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth" Journal of the Korean academy of pediatric dentistry 47.2 pp.205-212 (2020) : 205.
Seung-Hwan Ong, Jong-Soo Kim, Kim Jongbin, JISUN SHIN, Seunghoon Yoo. Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth. 2020; 47(2), 205-212. Available from: doi:10.5933/JKAPD.2020.47.2.205
Seung-Hwan Ong, Jong-Soo Kim, Kim Jongbin, JISUN SHIN and Seunghoon Yoo. "Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth" Journal of the Korean academy of pediatric dentistry 47, no.2 (2020) : 205-212.doi: 10.5933/JKAPD.2020.47.2.205
Seung-Hwan Ong; Jong-Soo Kim; Kim Jongbin; JISUN SHIN; Seunghoon Yoo. Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth. Journal of the Korean academy of pediatric dentistry, 47(2), 205-212. doi: 10.5933/JKAPD.2020.47.2.205
Seung-Hwan Ong; Jong-Soo Kim; Kim Jongbin; JISUN SHIN; Seunghoon Yoo. Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth. Journal of the Korean academy of pediatric dentistry. 2020; 47(2) 205-212. doi: 10.5933/JKAPD.2020.47.2.205
Seung-Hwan Ong, Jong-Soo Kim, Kim Jongbin, JISUN SHIN, Seunghoon Yoo. Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth. 2020; 47(2), 205-212. Available from: doi:10.5933/JKAPD.2020.47.2.205
Seung-Hwan Ong, Jong-Soo Kim, Kim Jongbin, JISUN SHIN and Seunghoon Yoo. "Fracture Strength and Translucency of CAD/CAM Zirconia Crown for Primary Anterior Tooth" Journal of the Korean academy of pediatric dentistry 47, no.2 (2020) : 205-212.doi: 10.5933/JKAPD.2020.47.2.205