TY - JOUR AU - LI, Changtao AU - WU, Jing AU - GUAN, Li AU - WANG, Ruiyong PY - 2017 TI - Clinical application of E-MAX glass ceramic onlays in the restorations of the nonvital posterior teeth JO - Journal of Prevention and Treatment for Stomatological Diseases SN - 2096-1456 SP - 600 EP - 604 VL - 25 IS - 9 AB - ObjectiveTo investigate the clinical use of glass ceramic onlay in the restoration of the non-vital posterior teeth with computer aided design and computer-aided manufacturing technique(CAD/CAM).Methods70 patients with 75 teeth of residual crown were selected and restored with CAD/CAM glass-ceramic onlay after completely root canal therapy. Marginal adaptation, anatomic form, adjacent relation, contour appearance, color match were checked in 12-month follow-up.ResultsMarginal adaptation, anatomic form, adjacent relation, contour appearance, color match of 73 teeth were satisfactory and 2 cases was excluded because of lost to follow-up. There were no significant differences in the number of cases which met clinical criterion A or B between immediate restoration and 12-month follow-up(P>0.05), and more than 95% of cases met clinical criterion A.ConclusionThe CAD/CAM glass-ceramic onlay in the restoration of non-vital posterior teeth can provide better effect of retention and esthetics in a short term observation of 12 months. UR - https://doi.org/10.12016/j.issn.2096-1456.2017.09.011 DO - 10.12016/j.issn.2096-1456.2017.09.011