Casting titanium partial denture frameworks: A radiographic evaluation
Casting titanium partial denture frameworks: A radiographic evaluation
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DOI：
10.1067/mpr.2002.122275
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发表时间：
2002-03-01
影响因子：
4.6
通讯作者：
Cecconi, ML
中科院分区：
文献类型：
--
作者：
Cecconi, BT;Koeppen, RG;Cecconi, ML
问题陈述。钛是可用于牙科铸件的生物相容性最好的金属。然而，人们对日常使用的钛的可浇铸性有一些担忧。对钛部分义齿支架进行了放射学评估，以确定这些铸件在技术上是否可以用于临床。在TITEC205M铸造机上铸造了300个二级钛可摘局部义齿支架。所有材料均按制造商指示使用，所有铸件均由经验丰富的钛专家制作，每件铸件均通过X光片进行评估。根据Ar夹杂物的数量、位置和大小，将支架分为：铸型技术上可接受的；激光焊接修改后的技术上可接受的；或铸型不能接受的，需要重新制作。在铸造的300个钛支架中，97%的支架在铸造性能方面被评为技术上可以接受的临床使用。在这项放射学评估的限制范围内，确定钛的可浇铸性是可以每天生产技术上可接受的铸件的。
Statement of problem. Titanium is the most biocompatible metal available for dental castings. However, there is some concern about the castability of titanium used on a daily basis.Purpose. A radiographic evaluation of titanium partial denture frameworks was undertaken to ascertain whether these castings were technically acceptable for clinical use.Material and methods. Three hundred Grade II titanium removable partial denture frameworks were cast in a Titec 205M casting machine. All materials were used as directed by the manufacturer, and all castings were made by an experienced titanium specialist, Each casting was evaluated by radiograph. Based on the number, location, and size of argon inclusions, the frameworks were rated as follows: technically acceptable for clinical use as cast; technically acceptable after laser welding modifications; or unacceptable as cast, with remake necessary.Results. Of the 300 titanium frameworks cast, 97% were rated technically acceptable for clinical use in terms of castability.Summary. Within the limitations of this radiographic evaluation, it was determined that the castability of titanium was such that technically acceptable castings could be made on a daily basis.