Stress-relaxation testing. Part III: Influence of wire alloys, gauges, and lengths on clasp behavior.
Stress-relaxation testing. Part III: Influence of wire alloys, gauges, and lengths on clasp behavior.
复制标题
应力松弛测试。
DOI：
10.1016/0022-3913(81)90441-8
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发表时间：
1981
期刊：
影响因子：
--
通讯作者：
H. F. Morris
中科院分区：
文献类型：
--
作者：
J. Brudvik;H. F. Morris
已通过应力松弛试验对常用的市售牙科金属丝进行了评价和评级，为临床医生确定其作为固位卡环臂的用途提供了依据。临床实验室的原则，有关使用线卡环武器进行了讨论。在过去8年中，在隆突下入路中使用钴铬镍丝固位卡环臂的临床经验是有益的。这些金属丝卡环与铸棒卡环一样有效，并且在可调节性和抗断裂性方面被证明是上级的。活动卡环长度与固位力和永久变形的关系是一个至关重要的关系，应该成为可摘局部义齿设计和构建的每一个哲学的组成部分。
Commonly used, commercially available dental wires have been evaluated and ranked through stress-relaxation testing to given the clinician a basis for determining their use as retentive clasp arms. Clinical laboratory principles relative to the use of wire clasp arms have been discussed. Clinical experience with the cobalt-chrome-nickel wire retentive clasp arms used in the infrabulge approach over the last 8 years has been rewarding. These wire clasps have been every bit as effective as the cast bar clasps and have proven to be superior in terms of adjustability and resistance to fracture. The relation of active clasp length to retention and permanent deformation is a crucial one and should be a component of every philosophy of design and construction of removable partial dentures.