Patent ID: 9060830
Filing Date: 2015-06-23
Classification: A61C

Abstract:
1. A tear-resistant dental dam, comprising: a first elastomeric sheet; and a second elastomeric sheet being disposed on and against the first elastomeric sheet, the first and second elastomeric sheets having a grid pattern of weld joint regions that couple together the first and second elastomeric sheets, the grid pattern of weld joint regions defining a plurality of unwelded regions of the first and second elastomeric sheets, the second elastomeric sheet being disposed on and against the first elastomeric sheet in the plurality of unwelded regions, a combined thickness of the first and second elastomeric sheets in each unwelded region of the plurality of unwelded regions being greater than a combined thickness of the first and second elastomeric sheets in the grid pattern of weld joint regions, the first and second elastomeric sheets having an aperture extending through a first unwelded region of the plurality of unwelded regions, the aperture being sized to receive a tooth therethrough.