颌骨骨质缺损是治疗学上的一大难题。骨质缺损的原因很多,包括外伤、恶性肿瘤术后、先天性腭裂、牙周病。最常见的原因是牙齿丧失后生理性的骨质吸收。金属、医用聚合物和陶瓷是三种可用于修复骨质缺损的材料。金属是最为广泛应用的修复材料。但是,所有的金属都有其不足之处。有足够强度的金属常常是毒性最大或最易腐蚀,而更为贵重的金属又往往缺乏足够的强度。金属在使用一段时间以后会产生 Jaw bone defect is a major problem in therapeutics. There are many reasons for bone defects, including trauma, malignant tumor surgery, congenital cleft palate, periodontal disease. The most common reason is physiological loss of bone after tooth loss. Metals, medical polymers, and ceramics are three materials that can be used to repair bone defects. Metals are the most widely used restoration materials. However, all metals have their drawbacks. Metals that are strong enough are often the most toxic or most corrosive, and more expensive metals often lack sufficient strength. Metal will be used after a period of time