Comparison of Reproducibility of Milled Acrylic Resin and Zirconia Models for 3-unit bridge Using Three-dimensional Analysis

Gang-Seok Park; Seong-Kyun Kim; Seong-Joo Heo; Jai-Young Koak; Ji-Man Park; Jin-Soo Ahn; Deog-Gyu Seo

doi:10.32542/implantology.20180011

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2018 Vol.22, Issue 3 Next Page

Original Article

Comparison of Reproducibility of Milled Acrylic Resin and Zirconia Models for 3-unit bridge Using Three-dimensional Analysis 밀링 방법으로 제작한 레진과 지르코니아 3본 브릿지 모델의 3차원 분석을 이용한 재현성 비교

30 September 2018. pp. 130-138

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Abstract

Purpose: The objective of this study was to investigate the reproducibility of milled acrylic resin and zirconia models using three-dimensional analysis.

Material and Methods: Zirconia discs and acrylic resin blocks were milled to make models. Each model was scanned with a model scanner. The zirconia models were superimposed with other zirconia model, and the acrylic resin models were superimposed with other acrylic resin model threedimensionally. Root-mean-square (RMS) values were obtained. Distances between two superimposed models were measured. Statistical significances were tested using the Mann-Whitney U test and t-test.

Results: The RMS values of the zirconia model and the acrylic resin model were not significantly different (p ≥0.05). At the premolar site, distances between the zirconia models at the upper axial and at the lower axial wall were significantly smaller than for the acrylic resin models (p <0.05). At the molar site, distance between the zirconia models at the lower axial wall was significantly smaller than for the acrylic resin models (p <0.05).

Conclusion: Although there is a difference in reproducibility between the milled acrylic resin model and the zirconia model in the localized region, no significant difference was found in the whole model.

Keywords

Zirconia

Milled acrylic resin

Three-dimensional analysis

Reproducibility

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Information

Publisher :The Korean Academy of Oral & Maxillofacial Implantology
Publisher(Ko) :대한구강악안면임플란트학회
Journal Title :Implantology
Journal Title(Ko) :대한구강악안면임플란트학회지
Volume : 22
No :3
Pages :130-138
Received Date : 2018-09-03
Revised Date : 2018-09-11
Accepted Date : 2018-09-13
DOI :https://doi.org/10.32542/implantology.20180011

Journal of implantology and applied sciencesISSN:2765-7833(Print) 2765-7841(Online)대한구강악안면임플란트학회

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