Universal occlusal matrix

Details Universal occlusal matrix Universal occlusal matrix

A - Human Necessities

61

C

A61C 5/00 (2006.01) A61C 13/097 (2006.01)

Patent

CA 2194531

A universal occlusal matrix for application to the occlusal surface of a tooth having a central groove forming a V-shape in cross-section, the universal occlusal matrix being transparent to ultraviolet rays and to rays of the visible spectrum to permit rapid hardening by polymerization of the filling material and of a material which does not adhere to that of the said filing. The universal occlusal matrix has an elastic lamina having a central groove forming a V-shape in cross-section with first and second curved concave wings extending outward from the central groove. The elastic lamina extends away from the central groove sufficiently far to cover the occlusal surface of the various teeth to which it may be applied. The angle of the V-shape of the groove of the lamina is greater than the angle of the V-shape of the groove of the various teeth to which it may be applied. The elastic lamina is characterized by having wings whose radius of curvature is less than the radius of curvature of the cusps of the various teeth to which it may be applied.

atrice occlusale universelle pour application à la surface d'occlusion d'une dent présentant un sillon central en forme de V en coupe transversale; la matrice laisse passer les rayons ultraviolets et les rayons du spectre visible pour permettre un durcissement rapide par polymérisation du matériau d'obturation et d'un matériau n'adhérant pas à celui de l'obturation. La matrice universelle possède une lame élastique pourvue d'un sillon central en forme de V en coupe transversale, dont la première et la seconde ailes concaves courbes dépassent le sillon central. La lame élastique se prolonge suffisamment au-delà du sillon central pour couvrir la surface d'occlusion des diverses dents auxquelles elle peut être appliquée. L'angle du V du sillon de la lame élastique est supérieur à celui du sillon des diverses dents auxquelles elle peut être appliquée. La lame élastique est caractérisée par des ailes dont le rayon de courbure est inférieur à celui des cuspides des diverses dents auxquelles elle peut être appliquée.

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