公开(公告)号：US20150150651A1

公开(公告)日：2015-06-04

申请号：US14556092

申请日：2014-11-28

Applicant: DENTSPLY International Inc.

Inventor： Simon Paul MCDONALD

IPC: A61C5/12

CPC classification number: A61C5/88 ,  A61C5/85 ,  A61C2201/007

Abstract: A dental wedge for inserting into the interproximal space between adjacent teeth comprises a first and second sidewall comprised of a shape memory material, including a nickel-titanium alloy, wherein the dental wedge is in a first, resting state when outside of the interproximal space and transforms to a second, operational state when the dental wedge is interested into the interproximal space between adjacent teeth and exposed to a first transformation stimulus, namely exposure to the higher temperature in the interproximal space. The expansion force generated by the dental wedge when in the second, operational stage is sufficient to secure a dental matrix against the tooth being restored and to separate the tooth being restored and adjacent tooth to expand the interproximal space.

Abstract translation: 用于插入到相邻牙齿之间的邻间空间中的牙楔包括由包括镍 - 钛合金的形状记忆材料组成的第一和第二侧壁，其中当在邻间隙外部时，牙楔处于第一静止状态，以及 当牙楔对相邻牙齿之间的间隙空间感兴趣并暴露于第一转化刺激，即暴露于邻间间隙中的较高温度时，转换到第二操作状态。 当在第二操作阶段时由牙楔产生的膨胀力足以固定牙齿基体以抵抗正在恢复的牙齿，并且将被复原的牙齿与相邻牙齿分开以扩展邻间隙。