CP-titanium and titanium alloys as an alternative material to dental gold-silver-palladium alloys for crown restoration
CP-titanium and titanium alloys as an alternative material to dental gold-silver-palladium alloys for crown restoration
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CP-钛及钛合金作为牙科金银钯合金的替代材料用于牙冠修复
DOI：
10.14399/jacd.40.231
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
A. Kuroiwa
中科院分区：
文献类型：
--
作者：
K. Wada;A. Kuroiwa
近年来，由于钯和黄金价格飙升，假肢设备的制造成本增加，因此，医疗保险融资面临压力。作为一项对策，2014年采用牙科CAD-CAM混合树脂作为仅用于前磨牙冠修复的治疗选择。2020年，该混合树脂的适应症扩展至上颌和下颌第一磨牙。这使得金属过敏患者或有美学需求的患者能够进行牙冠修复，并且我们能够应对贵金属价格的上涨。然而，考虑到长期预后，目前尚不清楚混合树脂冠是否具有最佳的机械性能作为磨牙冠修复的替代材料。与贵金属相比，CP-钛和钛合金（Cp-Ti和Ti合金）是具有与4型金合金相似的机械强度的廉价金属。牙科金合金的实验室技术也可应用于Cp-Ti和Ti合金。因此，由Cp-Ti和Ti合金制成的铸造牙冠于2020年纳入国家医疗器械保险。然而，钛铸造需要复杂的工艺，具有技术敏感点。因此，应用CAD-CAM技术制作纯钛及钛合金假体，有望解决钛铸造中存在的问题。本文建议在国家保险范围内采用CAD-CAM制作钛冠，以稳定地向牙科行业提供高精度的钛冠。[The Journal of the Academy of Clinical Dentistry 40（3）：231- 237，2020] WADA KUROIWA Akihiro*
In recent years, the cost of manufacturing prosthetic devices has increased due to soaring prices of palladium and gold, and as a result, health insurance financing is under pressure. As one countermeasure, a dental CAD-CAM hybrid resin was adopted in 2014 as a treatment option only for premolar crown restorations. In 2020, the indications for this hybrid resin were expanded to the maxillary and mandibular first molars. This enabled crown restoration for metal allergy patients or patients with esthetic demands, and we were able to respond to the increasing prices of precious metals. Considering the long-term prognosis, however, it is unknown whether hybrid resin crowns have optimal mechanical properties as an alternative material for molar crown restoration. In comparison with noble metals, CP-titanium and titanium alloys (Cp-Ti and Ti alloys) are inexpensive metals that have mechanical strength similar to that of Type 4 gold alloy. Laboratory techniques for dental gold alloys can be also applied for Cp-Ti and Ti alloys. Thus, cast crowns made with Cp-Ti and Ti alloy became covered by national insurance for medical devices in 2020. However, titanium casting requires complicated procedures with technically sensitive points. Therefore, application of CAD-CAM for the fabrication of Cp-Ti and Ti alloy prosthetic devices may be a solution to the problems in titanium casting. The present review proposes adopting CAD-CAM for the fabrication of titanium crowns under national insurance coverage in order to stably supply highly accurate titanium crowns to dental professions. 【The Journal of the Academy of Clinical Dentistry 40(3):231-237,2020】 WADA Kenichi KUROIWA Akihiro*
热敏树脂在CAD/CAM义齿中的应用
DOI：
--
发表时间：
2019
期刊：
影响因子：
--
作者：
Sugahara Keisuke;Matsunaga Satoru;Yamamoto Masahito;Noguchi Taku;Morita Sumiharu;Koyachi Masahide;Koyama Yu;Koyama Takumi;Kasahara Norio;Abe Shinichi;Katakura Akira;TUN MIN BO，秋葉徳寿，水口俊介
通讯作者：
TUN MIN BO，秋葉徳寿，水口俊介