钛网在上前牙唇侧重度骨缺损种植中的临床研究

目的:探讨在上前牙种植时使用钛网联合胶原膜和富血小板纤维蛋白(platelet rich fibrin,PRF)在修复唇侧骨板重度缺损的骨再生效果.方法:选择20例上前牙种植唇侧骨板重度缺损的患者,随机分为两组.一组使用骨粉+胶原膜+PRF进行骨增量,一组使用钛网+骨粉+胶原膜+PRF进行骨增量.埋入式愈合6个月二期手...

Clinical research on titanium mesh and collagen membrane using in implantation of severe labial bone defect of anterior teeth

Objective:To investigate the effect of bone regeneration through titanium mesh combined with collagen membrane and platelet rich fibrin(PRF)in the repair of severe defects in the labrum plates during implanting of the anterior teeth.Methods:Twenty patients with severe buccal bone defect of maxilla were selected and randomly divided into two groups.Whenbone regeneration,One group were treated with bone powder,collagen membrane and PRF in dental implantation,and the other group were treated with titanium mesh,bone powder,collagen membrane and PRF.Two-stage surgery was carried out after 6 months of submerged healing,and prosthesis was used after 1 month.The repairs of the defect were observed at the second stage surgery.The height of margin bone around implants and the thickness of bone at implants lingual side were measured,at the time of the second stage operation,6 months and 1year after permanent restoration.The differences were analyzed by SPSS 19.0 software package with t test.Results:During the second stage operation,the labial bone plate was reconstructed and plump,and the new bone covered the top end of the implant.The CBCT showed that the thickness of lip and neck bone was 2.82±0.12 mm,the control group had less new bone formation,and the thickness of lip was 1.03±0.11.while the new bone was formed in the labial bone of the control group,but most of the height was less than experiment group.CBCT showed the thickness of the labial bone were 0.97±0.13 mm and 2.77±0.21 mm 1 year after restoration,which was significantly different between the two groups.Conclusion:The results indicate that bone augmentation at severe defect in anterior teeth implantation can be achieved using titanium mesh and collagen membrane.This method is worthy of wide clinical application.