Trueness of milled prostheses according to number of ball-end mill burs

The Journal of Prosthetic Dentistry
Chong-Myeong KimWoong-Chul Kim

Abstract

Making a computer-aided design/computer-aided manufacturing (CAD/CAM) prosthesis with a milling machine often requires 2 (2- and 1-mm diameter) or 3 (2-, 1-, and 0.6-mm diameter) burs; however, using 3 burs can reduce time effectiveness and increase cost. Studies evaluating the trueness of prostheses made with 2 and 3 burs are lacking. The purpose of this in vitro study was to evaluate the 3-dimensional trueness of crown prostheses made using 2 and 3 ball-end mill burs in the milling process. The abutment die of the maxillary right first molar for ceramic crowns was designed with computer-aided design software. After the crown prosthesis design was completed, polyurethane blocks were milled using 2 and 3 burs with a 5-axis milling machine. The outer and inner surfaces of the milled crown prostheses were scanned with a dental scanner. The inner part was separated into a marginal part and an internal part using 3-dimensional evaluation software. The 3-dimensional trueness of the prostheses milled with 2 or 3 burs was compared. No significant differences in trueness were found for the inner or internal parts of the prosthesis (P>.05). However, the outer and marginal parts of the prosthesis did show significant differences in truen...Continue Reading

References

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Jun 8, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Oliver SchaeferArndt Guentsch
Mar 19, 2014·The Journal of Prosthetic Dentistry·Jonathan NgChris Wyatt
Jul 6, 2014·The Journal of Prosthetic Dentistry·Gabriel BoschAlbert Mehl
Sep 15, 2014·The Journal of Prosthetic Dentistry·Ki-Baek KimJi-Hwan Kim
Feb 16, 2015·The Journal of Prosthetic Dentistry·Seok-Hwan ChoArndt Guentsch
May 10, 2015·The Journal of Prosthetic Dentistry·Nicolas LebonBernardin Mawussi

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Citations

Jul 12, 2019·Postgraduate Medical Journal·Abigail WalkerClaire Hopkins
Oct 30, 2018·The Journal of Advanced Prosthodontics·Seen-Young KangWoong-Chul Kim
Jul 7, 2017·The Journal of Advanced Prosthodontics·Dong-Yeon KimWoong-Chul Kim
Sep 7, 2017·The Journal of Advanced Prosthodontics·Dong-Yeon KimWoong-Chul Kim
Aug 25, 2018·The Journal of Advanced Prosthodontics·Dong-Yeon KimWoong-Chul Kim
Aug 29, 2020·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Khaled Q Al HamadNadim Z Baba
Dec 5, 2018·The Journal of Prosthetic Dentistry·Alexis GoujatBrigitte Grosgogeat
Jul 3, 2021·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Khaled Q Al HamadNadim Z Baba

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