53 138

Cited 1 times in

Evaluation of the machinability and machining accuracy of polymer-based CAD/CAM blocks using merlon fracture test model

Authors
 Chang-Sub Jeong  ;  Joon-Mo Moon  ;  Hee-Jeong Lee  ;  Ji-Myung Bae  ;  Eun-Joo Choi  ;  Sung-Tae Kim  ;  Youngbum Park  ;  Seunghan Oh 
Citation
 DENTAL MATERIALS JOURNAL, Vol.42(2) : 273-281, 2023-04 
Journal Title
DENTAL MATERIALS JOURNAL
ISSN
 0287-4547 
Issue Date
2023-04
MeSH
Ceramics ; Computer-Aided Design ; Materials Testing ; Polymers* ; Polymethyl Methacrylate* ; Surface Properties
Keywords
CAD/CAM ; Machinability ; Machining accuracy ; Polymer-based CAM block
Abstract
The aims of this study were to estimate the machinability and machining accuracy of polymer-based CAM blocks using the merlon fracture test model specified in ISO 18675: 2022. Three hybrid disc blanks (MazicDuro, HC Disk, and Enamic) and three polymethyl methacrylate (PMMA) disc blanks (PMMA Disk, PMMA Block, and MazicTemp Hybrid) were tested in this study. The machinability was evaluated by assigning scores according to the fracture range of merlons with areas divided by ten vertical planes. The machining accuracy was evaluated by superimposing methods via CAD reference data and CAD specimen data. Within the limits of this study, a thickness of 0.3 mm is recommended for the clinical application of polymer-based CAD/CAM blocks in dental restorations that require superior machinability and accuracy. In addition, the machinability and machining accuracy tests of polymer-based CAM blocks are expected to provide guidelines for preparing accurate dental restorations.
Files in This Item:
T202304320.pdf Download
DOI
10.4012/dmj.2022-154
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Park, Young Bum(박영범)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/196009
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse

Links