Double scanning method for computer aided design and computer aided manufacture all-ceramic restorations.
- Author:
Yi-Hong LIU
1
;
Hai-Lan FENG
;
Hai-Tao WANG
;
Lin WANG
;
Yu-Guang NIE
;
Tao WANG
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Computer-Aided Design; Crowns; Dental Porcelain; Dental Prosthesis Design; Dental Restoration Wear; Female; Follow-Up Studies; Humans; Male; Middle Aged; Photometry; Surface Properties; Zirconium
- From: Chinese Journal of Stomatology 2010;45(3):168-171
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo introduce the double scanning for producing computer aided design and computer aided manufacture (CAD-CAM) zirconia crowns, and to compare Procera with Everest CAD-CAM system by observing clinical effects of the crowns.
METHODSForty CAD-CAM zirconia crowns (10 crowns by Procera, and 30 crowns by Everest) were evaluated, and the examination criteria included: marginal fit, aesthetics, gingival health, retention, and fracture. All of the zirconia copings were produced using double scanning. Procera system and Everest system use contact scanner and optical scanner respectively.
RESULTSThe observation time for the crowns ranged from 6 to 24 months. The results of clinic evaluation were acceptable in all restorations.
CONCLUSIONSDouble scanning could be used to produce complicated zirconia copings by CAD-CAM in order to get proper symmetrical porcelain length. It was easier to make complicated coping with contact scanner than with optical scanner.
