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Proceedings Paper

OCT evaluation of single ceramic crowns: comparison between conventional and chair-side CAD/CAM technologies
Author(s): A. Gabor; A. Jivanescu; C. Zaharia; S. Hategan; F. I. Topala; C. M. Levai; M. L. Negrutiu; C. Sinescu; V.-F. Duma; A. Bradu; A. Gh. Podoleanu
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Paper Abstract

Digital impressions were introduced to overcome some of the obstacles due to traditional impression materials and techniques. The aim of this in vitro study is to compare the accuracy of all ceramic crowns obtained with digital impression and CAD-CAM technology with the accuracy of those obtained with conventional impression techniques. Two groups of 10 crowns each have been considered. The digital data obtained from Group 1 have been processed and the all-ceramic crowns were milled with a CAD/CAM technology (CEREC MCX, Sirona). The all ceramic crowns in Group 2 were obtained with the classical technique of pressing (emax, Ivoclar, Vivadent). The evaluation of the marginal adaptation was performed with Time Domain Optical Coherence Tomography (TD OCT), working at a wavelength of 1300 nm. Tri-dimensional (3D) reconstructions of the selected areas were obtained. Based on the findings in this study, one may conclude that the marginal accuracy of all ceramic crowns fabricated with digital impression and the CAD/CAM technique is superior to the conventional impression technique.

Paper Details

Date Published: 22 March 2016
PDF: 7 pages
Proc. SPIE 9670, Sixth International Conference on Lasers in Medicine, 96700Z (22 March 2016); doi: 10.1117/12.2191907
Show Author Affiliations
A. Gabor, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
A. Jivanescu, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
C. Zaharia, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
S. Hategan, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
F. I. Topala, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
C. M. Levai, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
M. L. Negrutiu, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
C. Sinescu, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
V.-F. Duma, Aurel Vlaicu Univ. of Arad (Romania)
Politehnica Univ. of Timisoara (Romania)
Univ. of West Timisoara (Romania)
A. Bradu, Univ. of Kent (United Kingdom)
A. Gh. Podoleanu, Univ. of Kent (United Kingdom)


Published in SPIE Proceedings Vol. 9670:
Sixth International Conference on Lasers in Medicine
Darinca Carmen Todea; Adrian Gh. Podoleanu; Virgil-Florin Duma, Editor(s)

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