医用钛合金材料对种植体生物力学行为的影响

钛合金材料具有优异的机械性能、化学稳定性和生物相容性,已成为种植体主要原材料,但要满足患者临床治疗的长效安全性和功能性,医用钛合金材料的生物及力学相容性仍有待提高。具有较低弹性模量和较高强度的新型医用钛合金,对降低由应力屏蔽导致的种植体的松动、脱落有着重要作用。本文利用有限元方法,对比新型医用钛合金材料以及传统医用钛合金材料对种植体结构和颌骨应力分布。通过对比发现由于新型医用钛合金材料高强度、低模量等特点,减少了由应力遮挡效应导致,诱发骨吸收、植入体松动、失效等问题的风险。

Effect of New Titanium Alloy on Biomechanical Behavior of Dental Implant

Titanium alloy materials have excellent mechanical properties, chemical stability and biocompatibility, and have become the main raw materials for implants. However, the biomechanical compatibility of medical titanium alloys still needs to be improved in order to meet the long-term safety and functionality of patient's clinical treatment requirement. New medical titanium alloy materials with high strength and low modulus play an important role in reducing the loosening and shedding of implants caused by stress shielding. The effects of new medical titanium alloy materials and traditional medical titanium alloy materials on implant structure and stress distribution of jaw are compared and analyzed by the finite element method. The results show that the new medical titanium alloy material is more suitable for implant application, which reduces the risk of bone resorption, implant loosening and failure caused by stress shielding effect.