A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
83/16
A61C 3/06 (2006.01) A61C 3/10 (2006.01) A61C 17/20 (2006.01)
Patent
CA 1160080
19930-FF ABSTRACT OF THE DISCLOSURE A powered dental scaler (10) is disclosed of a type which drives a vibrating scaling tip (26) in a circular or ellipsoidal pattern of motion. A scaling tip (26) having working surfaces provided by the edges (104, 106, 108) of an elongated, curved element which has a cross-sectional configuration in the shape of a multi-sided figure, e.g., a triangle or a diamond, is particularly useful with a scaler having this type of vibrational pattern. Each of the longitudinal edges (104, 106, 108) has a radius of curvature in the range of about 0.001 inch to about 0.005 inch. The free end (94) of the scaler work tool (26) preferably terminates in rounded or ball-shaped configurations, and the working surfaces can be joined along inactive edges by a convex surface (116) to provide "safe" surfaces. The absence of sharp edges or points on the scaler tool work surfaces substantially reduces the likelihood of damage to tooth dentin, cementum or gums.
363939
Johnson Douglas S. Q.c.
Syntex (u.s.a.) Llc
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