Preliminary study of clinical effect of Lava full-contour CAD/CAM zirconia crowns for posterior teeth
CHENLei
SUNQiang
LIANYun-min
Abstract：Objective To evaluate clinical effects of Lava full-contour CAD/CAM zirconia crowns for posterior teeth. Methods Sixty two patients participated in the present study. Seventy three Lava full-contour CAD/CAM zirconia crowns were made on posterior teeth. All of the crowns were cemented using resin cement. Evaluating the cases of crown fracture, color of the crown, contour, marginal fitness, secondary caries, marginal color change at two weeks, three months, half a year, one year, two years and three years following delivery. Results Lava full-contour zirconia crowns demonstrated good fracture resistance, and no fracture were found. All of 73 crowns were grouped into A-level in color, contour, marginal fitness, secondary caries. There were only 5 crowns suffered from marginal color change. Conclusion The full-contour CAD/CAM zirconia crowns are good restorations for posterior teeth defect. It contributes to avoid the incidence of veneering porcelain fracture, and conserve more residual tooth structure.
Keywords：Zirconia dioxideCrownsPosterior teethRestoraticn
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 108-110 )