Computer-aided design/computer-aided manufacturing of zirconia all-ceramic crowns: stability and biocompatibility

doi:10.3969/j.issn.2095-4344.2015.34.016

Abstract

Abstract:

BACKGROUND: Zirconia all-ceramic crowns have been widely accepted in the clinic because of its excellent mechanical properties, biocompatibility and aesthetic performance.

OBJECTIVE: To investigate the clinical efficacy of zirconia all-ceramic crowns prepared using computer-aided design/computer-aided manufacturing versus conventional method.

METHODS: Eighty-seven patients who used zirconia all-ceramic crowns, consisting of 56 males and 31 females, aged 21-56 years were included in this study. Among these patients, 42 patients were subjected to tooth repair with zirconia all-ceramic crowns prepared using computer-aided design/computer-aided manufacturing technique (experimental group) and 45 patients received tooth repair with zirconia all-ceramic crowns prepared using conventional method (control group). At the end of the 6^th month after zirconia all-ceramic crown repair, denture surface texture, the color of the restoration, anatomic appearance of prosthesis, marginal integrity, denture health and patient’s satisfaction were investigated between the experimental and control groups.

RESULTS AND CONCLUSION: After repair with zirconia all-ceramic crowns, patient satisfaction rate of the color of the restoration and total patient satisfaction rate in the experimental group were significantly greater than in the control group (100% vs. 78%, 95% vs. 82%, P < 0.05). The anatomic appearance of prosthesis in the experimental group was superior to that in the control group (P < 0.05). There were no significant differences in

denture surface texture, the color of the restoration, and marginal integrity between the experimental and control groups (P > 0.05). Discoloration, cracks and chipping and other adverse reactions were observed in neither experimental group nor control group. These findings suggest that the zirconia all-ceramic crowns prepared using computer-aided design/computer-aided manufacturing technique exhibit good aesthetic performance, stability and biocompatibility.

中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程

Key words: Dental Prosthesis, Computer-Aided Design, Dentures, Local, Fixation

CLC Number:

R318

Li Shuang. Computer-aided design/computer-aided manufacturing of zirconia all-ceramic crowns: stability and biocompatibility [J]. Chinese Journal of Tissue Engineering Research, 2015, 19(34): 5491-6495.

Figures/Tables 2

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