Sixty-three cases were followed up for 1~5 years, with 1 case post core drop(1.6%),1 case post core fracture(1.6%),and the rate of patients satisfaction was 96.8%.

• 63颗瓷桩核修复体；观察1~5年；其中脱落1颗占1.；6%25; 桩核折断1颗；占1