楔状缺损是常见的牙齿唇、颊面颈部硬组织疾病,是由于长期持续的机械因素作用,使牙体硬组织逐渐形成的缺陷。真正的病因尚不明确,因其缺损部位及形态特殊,故充填不易固位。我们现选用玻璃离子黏固剂和光固化复合树脂进行修复,经充填后6个月至2年复查,就其疗效进行比较及分析。 Wedge-shaped defect is a common tooth lip, buccal neck and neck hard tissue disease, due to long-term continuous mechanical factors, the gradual formation of dental hard tissue defects. The real cause is not clear, because of its defect site and shape special, so the filling is not easy to retainer. We now use glass ionomer cement and light curing composite resin repair, after filling 6 months to 2 years review, its efficacy compared and analyzed.