发明名称 Framework for producing tooth-replacing bridges
摘要 A prefabricated bridge framework for producing tooth-replacement bridges consists of a support bar to bridge over a gap between teeth and connecting elements for placing the support bar on bridge pillars. The bridge framework as a whole is made of a dental alloy and is capable of being adjusted automatically to the length of a gap between teeth by changing the length of the support bar. Reinforcing ribs are provided on the bottom of the support bar. This bridge framework makes superfluous the manual construction of a wax model of a framework and the subsequent casting in metal that have been required up to now. This bridge framework is always made the same qualitatively, and guarantees that the production of tooth-replacement bridges will be considerably simpler and quicker.
申请公布号 US4950162(A) 申请公布日期 1990.08.21
申请号 US19880224604 申请日期 1988.07.27
申请人 KORBER, KARLHEINZ;LUDWIG, KLAUS 发明人 KORBER, KARLHEINZ;LUDWIG, KLAUS
分类号 A61C13/003;A61C13/275 主分类号 A61C13/003
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