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US 6,186,789 B1Granted
Dental tool for preparing a tooth for a dental crown
AssigneeKaltenbach & Voigt GmbH & Co.
InventorsBurkhard Hugo, Walter Mössle
Life of this patent
Estimating the term…
Abstract
A dental tool having a processing section at one end which includes a longitudinally extending lateral face and a transversely extending front face having an abrasive working face located at a distance from the lateral face so as to permit forming a precise marginal edge around a tooth to permit precise positioning of a crown while avoiding deleterious working of the tooth region nearest the stump on which the crown is to be mounted.
Claims11
A dental tool for preparing a tooth for a dental crown, said tool comprising:
- an elongated tool shank having an elongated center axis;
- a processing section connected to one end of said tool shank;
- said processing section having a functional region, said functional region having a lateral face which extends longitudinally in substantially the same direction as said center axis, said functional region also having a front face which is located opposite said tool shank and which extends from said lateral face in a direction substantially transverse to said center axis;
- said lateral face being smooth and said front face having an abrasive working surface which constitutes a portion of said front face located at a given distance from said lateral face, and a portion of said front face adjacent said lateral face being smooth.
1 more element
A dental tool for preparing a tooth for a dental crown, said tool comprising:
- an elongated tool shank having a longitudinal center axis;
- a processing section connected to one end of said tool shank;
- said processing section having a functional region, said functional region having a lateral face which extends longitudinally in substantially the same direction as said center axis, said functional region also having a front face which is located opposite said tool shank and which extends from said lateral face in a direction substantially transverse to said center axis;
- said functional region having an abrasive working face which constitutes a portion of said front face;
- said front face being convex as viewed in an oblique section thereof facing away from said center axis;
- and
- said lateral face being rounded in a concave manner in a cross-section thereof taken through said center axis.
4 more elements
Dependencies are inferred from the claim text.