GI-1型玻璃离子粘固剂治疗牙颈部楔状缺损疗效分析

EFFECT ANALYSIS OF WEDGE SHAPE DEFECT TREATED WITH GLASS IONOMER CEMENT 1

用GI－1型玻璃离子治疗不同程度的牙颈部楔状缺损，其结果随方法的不同也不尽相同，充填体保存率在深、中度损害不随备洞而提高，在轻度损害中却随备洞而明显提高；对牙髓组织的刺激情况在深、中度损害中均随衬洞而明显不同，提示在用玻璃离子修复牙颈部楔状缺损时，深、中度缺损者不需备洞但应注意衬洞，轻度损害者应注意备洞。

The results of different depth wedge shape defect treated with glass ionomer cement by different methods were not the same. The keeping efficiency of filling material was apparently raised by cavity preparation in shallow lesions. But it was not the case in deep and middling lesions. On condition that tile pulp was stimulated, there was a difference between the case of cavity lining and noncavity lining in deep and middling lesions. It suggested that in filling wedge shape defect with glass ionomer cement 1, cavity lining ought to be used in deep and middling lesions while cavity preparation be used in shallow lesions.