Clinical evaluation of zirconia crowns for single posterior teeth.

Author: Yuanhua CHEN ; Xiangfeng MENG ; Qing YU
Publication Type:Journal Article
MeSH: Ceramics; Computer-Aided Design; Crowns; Dental Porcelain; Dental Prosthesis Design; Zirconium
From: West China Journal of Stomatology 2014;32(3):256-258
CountryChina
Language:Chinese
Abstract:
OBJECTIVETo observe and evaluate the clinical performance of zirconia crowns made by CEREC inLab computer aided design/computer aided manufacturing(CAD/CAM) for posterior teeth.
METHODSA total of 242 patients were implanted with zirconia crowns fabricated by CEREC inLab CAD/CAM. The crowns were evaluated by Modified US Public Health Service criteria at baseline, 6, 12, 24, and 36 months. The chi-square test was used to analyze the survival rate.
RESULTSAll but five crowns were evaluated by an independent evaluator at baseline, 6, 12, 24, and 36 months. The survival rate declined with time. The A score percentage was above 85% at 36 months.
CONCLUSIONThe single zirconia crowns fabricated by CEREC inLab CAD/CAM demonstrate satisfactory clinical performance during a short period.