Dental wedge

摘要

A dental wedge (10) having a wedge body (11) and a gripping portion (12). The wedge (10) also has a longitudinal axis (13). The body (11) extends from a first end (14) to a second end (15), with the gripping portion (12) attached to the first end (15). The body (11) is constructed of at least two longitudinally extending layers. In one embodiment there are three layers, a first longitudinally extending layer (16), and second longitudinally extending layer (17) and a third longitudinally extending layer (18). The layer (17) is located between the layers (16, 18). In one embodiment the layers (16, 18) are formed of a softer material than the layer (17). In an alternative embodiment the layers (16, 18) are formed of a harder material than the material forming the layer (17).

主权项

1. A dental wedge having a longitudinal axis extending between first and second ends of the wedge, the wedge including:
a pair of longitudinally extending side surfaces that converge towards the first end; a first longitudinally extending layer located between the side surfaces; a second longitudinally extending layer located between the side surfaces; and a third longitudinally extending layer located between the side surfaces, with the third longitudinally extending layer being positioned so that the first layer is located between the second and third layers; wherein the first layer is formed of either the second material or a first material, the second layer is formed of a second material, and the third layer is formed of a third material with the first material having a modulus of elasticity less than the second material and the third material.