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51. 发明授权

US5908299A Prosthetic teeth and mold making therefor 失效
标题翻译：假牙和模具制作
公开(公告)号：US5908299A
公开(公告)日：1999-06-01
申请号：US988072
申请日：1997-12-10
申请人： Barry Dehoff , Jeffrey McGraw , James McNulty , Vickie Reynolds , Roger Shue , Mark White
发明人： Barry Dehoff , Jeffrey McGraw , James McNulty , Vickie Reynolds , Roger Shue , Mark White
IPC分类号： A61C13/00 , A61C13/08
CPC分类号： A61C13/0004 , A61C13/081
摘要： A prosthetic tooth having an enamel layer which has a zone of substantially constant thickness. This tooth is molded using a dental tooth mold part prepared by imaging a dental pattern of a prosthetic tooth shade layer and/or shader mold part outer surface, and forming the dental pattern in a mold by program directed milling. A family of prosthetic teeth is provided including a first tooth in a first set of teeth having a first overall labial length, and a first back length, and a second tooth in a second set of teeth having a second overall labial length, and a second back length. The invention provides a prosthetic incisor tooth including a tooth body having two generally symmetrical curved grooves between three curved ridges on the labial face of the body at the incisal end of the body. The grooves are deepest at the incisal end and extend substantially from the incisal edge to at least about 15 percent of the overall tooth length.
摘要翻译：具有具有基本上恒定厚度的区域的搪瓷层的假牙。使用通过对假牙齿遮蔽层和/或着色器模具部件外表面的牙齿图案进行成像制备的牙齿模具部件来模制该牙齿，并且通过程序定向铣削将模型形成在模具中。提供了一系列假牙，其包括具有第一整体唇长的第一组齿中的第一齿和第一后长度，以及具有第二整体唇长的第二组齿中的第二齿，以及第二齿后中长。本发明提供了一种假肢切牙，其包括在身体的切口端处的身体的唇面上的三个弯曲脊之间具有两个大致对称的弯曲凹槽的齿体。凹槽在切割端处最深，并且从切割边缘基本上延伸到整个牙齿长度的至少约15％。

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