牙用固位钉、镍铬合金冠等材料在快速自旋回波图像上伪影减轻。
Artifacts produced by retention pin, nickel chromium crown and so on were less severe on fast spin-echo.
结论用钛-镍记忆合金牵张器牵张，增高犬下颌后牙区牙槽嵴，新生骨质量可以满足种植等后期修复的要求。
Conclusions the canines mandibular posterior alveolar ridge could be augmented by distraction osteogenesis using Ti-Ni SMA distractor, and the new bone is strong enough for implant placement.
牙用钛合金TC4 ，使用渗氮表面技术处理。
Titanium alloy material (TC4) samples were treated with nitriding technique.
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