Fabrication of titanium restoration by means of calcium aluminate-bonded magnesia investment material and one-chamber arc casting apparatus.
Fabrication of titanium restoration by means of calcium aluminate-bonded magnesia investment material and one-chamber arc casting apparatus.
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利用铝酸钙结合镁砂熔模材料和一室电弧铸造装置制造钛修复体。
DOI：
10.2334/josnusd.20-0558
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发表时间：
2020
影响因子：
1.9
通讯作者：
H. Koizumi
中科院分区：
文献类型：
--
作者：
Mika Furuchi;Yoshimasa Takeuchi;Atsushi Kamimoto;H. Matsumura;Hideyuki Imai;H. Koizumi
铸造钛修复磨牙具有很高的生物相容性，并由日本国民健康保险覆盖。钛的铸造需要特殊的包埋材料和铸造设备。本研究用钛制作了下颌左第二磨牙的铸型修复。在最终铸件上制作的蜡模被包覆在铝酸钙结合的氧化镁包埋材料中。钛的铸造使用了一种充气加压的单室铸造装置。表面没有观察到缺陷，孔洞清晰地重现。通过低速抛光，修复体表面光滑。本研究制备的钛修复体的重复性和抛光性能与传统的牙科金属修复体相当。
Cast titanium restoration for molars has high biocompatibility and is covered by the Japanese national health insurance. Titanium casting requires specific investment material and casting apparatus. A cast restoration for the mandibular left second molar was fabricated using titanium in this study. A wax pattern fabricated on a definitive cast was invested in calcium aluminate-bonded magnesia investment material. Titanium was cast using an argon gas pressure one-chamber casting apparatus. No defects were observed on the surface and the hole was clearly reproduced. A smooth surface on the restoration was obtained by polishing at low speed. Reproductivity and polishing properties of the titanium restoration fabricated in this study were comparable to those of conventional dental metal restorations.