評價富血小板纖維蛋白單獨(dú)用于上頜竇提升種植骨再生的效果
[Abstract]:Background: platelet-rich fibrin, as a kind of autologous blood concentrate rich in growth factor and fibrin, has the effect of promoting tissue regeneration. It is usually mixed with autologous or allogenic bone powder to repair oral and maxillofacial bone defects and promote bone regeneration, but its osteogenic effect as maxillary sinus lifting bone grafting material is controversial. Objective: to observe and evaluate the effect of bone regeneration around maxillary sinus by establishing maxillary sinus lifting simultaneous implantation model and using platelet-rich fibrin as bone transplantation material alone. Methods: twelve healthy adult mongrel dogs aged 12 months were randomly divided into platelet rich fibrin group, autologous bone group and autologous blood group with 4 dogs in each group. Bilateral maxillary first molars were removed and external maxillary sinus lifting and simultaneous implantation were performed 12 weeks later. The same volume of platelet-rich fibrin, autologous bone debris and autologous blood were implanted into the maxillary sinus of the three groups. The bone regeneration effect was evaluated by gross observation, imaging and histology analysis 12 weeks after implantation. Results and conclusion: (1) there were different degrees of new bone formation around all the implants. the new bone was connected with the bone at the floor of the sinus, and there was no bone formation at the tip of the implantation. (2) the height of new bone: the platelet-rich fibrin group was (3.135 鹵0.288) mm, the autologous bone group was (3.218 鹵0.345) mm, the platelet-rich fibrin group was (1.898 鹵0.157) mm, platelet-rich fibrin group, and the autologous blood group was (1.898 鹵0.157) platelet-rich fibrin group. There was significant difference in the height of new bone between autologous bone group and autologous blood group (P 0.05). (3) New bone mineral density: platelet-rich fibrin group was (65.06 鹵5.88) g / cm ~ 3, autologous bone group was (75.34 鹵8.18) g / cm ~ 3, autologous blood group was (56.92 鹵4.95) g 路cm ~ 3. There were significant differences in new bone mineral density between platelet-rich fibrin group and autologous bone group, autologous bone group and autologous blood group, platelet-rich fibrin group and autologous blood group (P 0.05). (4) the results showed that the application of platelet-rich fibrin alone in maxillary sinus lifting implantation could promote the formation of new bone around the implantation, but the amount of new bone formation was limited.
【作者單位】: 大連醫(yī)科大學(xué)口腔醫(yī)學(xué)院口腔頜面外科;大連醫(yī)科大學(xué)附屬口腔醫(yī)院口腔頜面外科;
【基金】:遼寧省自然科學(xué)基金(2015010313-301)~~
【分類號】:R783.6
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