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Abstract Objective：To investigate clinical application，aesthetics，stability and bio-compatibility of zirconia all-ceramic crowns.Method：Computeraided design and computer aided manufacturing（CAD/CAM）techniqueswere used to make zirconia all-ceramic crowns for 78 teeth on 59 patients.After one year follow-up,the esthetics,stability biocompatibility were investigated by examining oral adaptability of crow color，breakage ratio，losing ratio and gingival health.. Result：The effect of the 59 patients to repair the overall satisfaction. Conclusion：The esthetics,stability and biocompatibility of zirconia-veneered crowns were enhanced by CAD/CAM technique.
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