The invention is an open-ended dental ring with varying height used in the preparation of a tooth for a restorative procedure. The ring is used in conjunction with a shield to ensure the shield between a tooth to be restored and an adjacent tooth. The result is a close contact being formed between the two teeth after restoration and improved flexibility recall after repeated use.
申请公布号
WO2008101176(A3)
申请公布日期
2008.10.23
申请号
WO2008US54112
申请日期
2008.02.15
申请人
DANVILLE MATERIALS, INC.;BERTOLOTTI, RAYMOND L.;FERNWOOD, MARK S.