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US 7,717,710 B2Granted
Ceramic instrument
AssigneeGebr. Brasseler GmbH & Co. KG
InventorsKarl-Heinz Danger, Michael Krumsiek
Life of this patent
Estimating the term…
Abstract
The present invention relates to a rotating instrument made of a ceramic material and comprising a shaft 1 and a working member 2 which is secured to the shaft or can detachably be secured thereto, wherein at least part of the working member 2 is made from a ceramic material, characterized in that the ceramic part of the working member 2 has a surface roughness of 0.5 μm to 6 μm.
Claims33
A dental instrument comprising:
- a shaft (1);
- and
- a working member (2) which is secured to the shaft, said dental instrument having a longitudinal axis of rotation, said dental instrument being sized and configured to perform a dental procedure in a person's mouth, said dental instrument being sized and configured to rotate at a high speed effective to perform said dental procedure,
- wherein at least part of the working member (2) is made from a ceramic material, characterized in that at least one cutting edge and/or toothing consisting of the ceramic material is provided in the outer surface of the at least part of the working member (2) that is made from the ceramic material such that the at least one cutting edge and/or toothing consisting of the ceramic material is adapted to perform a cutting function during the dental procedure, wherein the at least part of the working member (2) made from the ceramic material and containing the at least one cutting edge and/or toothing consisting of the ceramic material has a surface roughness of 0.5 μm to 6 μm.
1 more element
A method of performing a dental procedure comprising the steps of:
- (a) providing a dental instrument, said dental instrument comprising a shaft and a working member which is secured to the shaft, said dental instrument having a longitudinal axis of rotation, said dental instrument being sized and configured to perform the dental procedure in a person's mouth, said dental instrument being sized and configured to rotate at a high speed effective to perform the dental procedure, wherein at least part of the working member is made from a ceramic material, characterized in that at least one cutting edge and/or toothing consisting of the ceramic material is provided in the outer surface of the at least part of the working member that is made from the ceramic material such that the at least one cutting edge and/or toothing consisting of the ceramic material is adapted to perform a cutting function during the dental procedure, wherein the at least part of the working member made from the ceramic material and containing the at least one cutting edge and/or toothing consisting of the ceramic material has a surface roughness of 0.5 μm to 6 μm;
- (b) rotating said dental instrument about said longitudinal axis of rotation;
- and
- (c) causing said rotating dental instrument to contact tooth or bone and cut said tooth or bone in the course of the dental procedure.
1 more element
Dependencies are inferred from the claim text.