结合螺旋式种植体的非血管化髂骨在下颌骨缺损重建中的临床应用研究

目的探讨结合螺旋式种植体的非血管化髂骨修复下颌骨缺损的方法并对其效果进行评价。方法对15例患者共38枚种植体植入非血管化髂骨的情况进行研究,采用大体观察、X线片观察,并对种植义齿修复后进行咀嚼效率的测定。结果种植体植入非血管化髂骨后稳定性良好,但2例下颌骨缺损较大的(>8 cm)病例,术后半年发现种植体骨界面有较明显吸收。种植义齿修复后,患者咀嚼效率接近正常,表明结合种植体的非血管化髂骨修复下颌缺损,可早期恢复患者的咀嚼功能。结论结合螺旋式种植体的非血管化髂骨修复下颌骨缺损可以早期实现下颌骨的功能性重建,但大范围的下颌骨缺损不宜用此法修复。

Reconstruction of mandibular defects using non-vascularized iliac bone grafts with placement of screw-type dental implants

Objective To investigate the method and asses the outcomes of reconstruction of mandibular defects using non-vascularized iliac bone garfts with placement dental implants.Methods Fifteen patients with 38 dental implants were researched.The outcomes were observed and X-ray was taken,then the chewing rate was measured. Results A good stability for dental implants placed in non-vascularized iliac bone grafts was achieved.But 6 months after openition,2 cases of greater defect showed an irregular absorption in interface.After mandibles were reconstructed,the chewing rate could reach as much as normal.The result showed implants and non-vascularized iliac bone grafts could be used for mandibular reconstruction to recover the chewing functionally.Conclusion It can be used to reconstruct functionally mandibular defects using non-vascularized iliac bone grafts with placementdental implants,but a wide range of mandibular defect is not fit for reconstruction by the way.