计算机辅助设计/计算机辅助制造技术制作的瓷贴面边缘适合性分析：一项初步体外研究

Analysis of Marginal Adaptation of Porcelain Laminate Veneers Produced by Computer-Aided Design/Computer-Assisted Manufacturing Technology: A Preliminary In Vitro Study.

作者信息

Pereira Duziene Denardini, Marquezan Mariana, Grossi Márcio Lima, Silva Oshima Hugo Mitsuo

出版信息

Int J Prosthodont. 2018 Jul/Aug;31(4):346-348. doi: 10.11607/ijp.5693.

DOI:10.11607/ijp.5693

PMID:29953565

Abstract

PURPOSE

To analyze the marginal adaptation of computer-aided design/computer-assisted manufactured (CAD/CAM) porcelain laminate veneers.

MATERIALS AND METHODS

A total of 25 three-dimensional (3D) machine-milled laminate veneers were divided into five groups of five each according to fabrication material (E-max; Empress; Lava Ultimate; Suprinity; and Vita Mark II) and cemented in 25 prepared acrylic central incisors. Digital microscopy images (×7.5 magnification) were analyzed for gaps in the mesial/distal surfaces of the prepared tooth and in the cervical, medial, and incisal thirds.

RESULTS AND CONCLUSION

All CAD/CAM laminate veneers except for Empress and Suprinity in the middle and incisal thirds showed good results (ie, gaps < 120 μm in the cervical, middle, and incisal thirds).

摘要

目的

分析计算机辅助设计/计算机辅助制造（CAD/CAM）瓷贴面的边缘适合性。

材料与方法

将总共25个三维（3D）机械研磨的贴面根据制作材料（E-max；Empress；Lava Ultimate；Suprinity；和Vita Mark II）分为五组，每组五个，并粘结到25个预备好的丙烯酸树脂中切牙上。对数字显微镜图像（放大7.5倍）分析预备牙近中/远中面以及颈部、中部和切端三分之一处的间隙。