玻璃纤维增强型复合树脂桩核修复牙体缺损的临床应用

目的:探讨利用玻璃纤维增强型复合树脂桩核修复牙体严重缺损的可行性。方法:选择59例87颗牙体严重缺损的患牙,利用玻璃纤维作为增强材料,制作复合树脂桩核,然后以金属烤瓷全冠修复牙体缺损;患者在治疗完成后3、6和12个月复诊,观察修复效果。结果:1年中有2例3颗患牙失访,在57例84颗复查的患牙中,83颗患牙修复体稳固无松动,咬合功能恢复良好;仅有1颗患牙的修复体松动,但桩核稳固未松动,重新修复后效果良好;所有的修复患牙均未发生牙折,临床修复效果满意。结论:玻璃纤维增强型复合树脂桩核的强度高,色泽好,操作方便,可作为根管桩核材料在临床应用。

Clinical use of glassfiber-reinforced composites post and core

PURPOSE:To evaluate the usefulness of glassfiber-reinforced composites post and core in restoration of serious dentine defects.METHODS:59 cases,87 teeth with serious dentine defects were selected.Glassfiber was used as the reinforcement frame and glassfiber-reinforced composites post and core were fabricated.Then the defected teeth were restored with porcelain-fused-metal crown.All patients were asked to re-visit 3 months,6 months and 12 months after treatments.RESULTS:2 cases(3 teeth)were out of visit 12 months after treatments.The restorations of other 57 cases(84 teeth)were firm and the occlusion was rebuilt satisfactorily during 12 months' clinical observations.Only one crown restoration was found to be loose.But the post and core was found to be still firm after the crown was taken off.Satisfactory results were achieved after being restored again.No dentine fracture was found in all restored teeth.The clinical results were satisfactory.CONCLUSION:Glassfiber-reinforced composite can be considered as a good material to fabricate post and core due to its high-strength,aesthetics and convenient operation.