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AssigneeSyntex (U.S.A.) Inc.
InventorJohn E. Nash
Estimating the term…
A powered dental scaler is disclosed of a type which drives a vibrating scaling tip in a circular or ellipsoidal pattern of motion. A scaling tip having working surfaces provided by the edges 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 has a radius of curvature in the range of about 0.001 inch to about 0.005 inch. The free end of the scaler work tool preferably terminates in rounded or ball-shaped configurations, and the working surfaces can be joined along inactive edges by a convex surface 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.
A dental scaler comprising:
A dental scaler comprising:
A dental scaler tip having an operative end and an end adapted to be secured to a hand-held dental scaler, said operative end terminating in a curved free end, said operative end having a plurality of sides extending substantially the entire length thereof, a perpendicular cross-section of said operative end at any point substantially along the entire longitudinal dimension thereof being a multi-sided figure, said multi-sided figure having a plurality of edges, each of said edges provided by an intersection of a pair of adjacent sides of said plurality of sides, said edges extending substantially the entire length of said free end, each of said edges having a radius of curvature in the range from about 0.001 inch to about 0.005 inch.
A dental scaler tip having an operative end and an end adapted to be secured to a hand-held dental instrument, said operative end terminating in a curved free end, said operative end having at least two generally planar sides extending along a portion of the length thereof and intersecting at a junction to define a longitudinal working edge, said operative end further having at least one pair of longitudinally extending non-intersecting edges and a convex surface joining said longitudinally extending non-intersecting edges.
Dependencies are inferred from the claim text.