Both materials have excellent retention within the surgically debrided defect, more than conventional materials.
两种材料可以很好的作用于手术清创缺损区，有效剂量多于传统材料。
2
Some had different degree defect of dentition, deciduous tooth retention, caries or periodontitis.
有些病例伴有牙列缺损，有些病例还有乳牙滞留、龋病、牙周病等。
3
Conclusion: the application of attachment in the restoration of unilateral maxillary defect was feasible technically, which may increase the retention and stability of the prosthesis.