Patent ID: 7214058

Claim:
A dental matrix comprising: an elongated body comprising a gingival edge, an ocelusal edge, and first and second end portions, terminating in respective first and second ends; the body comprising a first central portion of a first thickness positioned between said first and second end portions and reinforcing portions adjacent to said central portion and of a second thickness that is greater than the first thickness; a first retainer receiving aperture positioned between the first central portion and the first end of the body, a second retainer receiving aperture positioned between the first central portion and the second end of the body; and a first retainer engaging slot at the first end portion of the body and nearer to the first end than the first aperture, the first retainer engaging slot terminating in a slot opening at the occlusal edge of the body, a second retainer engaging slot at the second end portion of the body and nearer to the second end than the second aperture, the second retainer engaging slot terminating in a first slot opening at the occiusal edge.