US 2019/0167394 A1 · TOOTH CUTTING GUIDE OR TOOTH RIDGE LAP GUIDE AND METHOD OF MANUFACTURING THE SAME

Abstract

A tooth cutting guide or tooth ridge lap guide for processing at least one prefabricated artificial tooth from a set of prefabricated artificial teeth using a subtractive processing method, the tooth cutting guide comprising a base body, at least one retainer for receiving and positioning the at least one prefabricated artificial tooth, which is formed in the base body, wherein an inner surface of each of the at least one retainer form fits to a first surface area of one of the at least one prefabricated artificial tooth from the set of prefabricated artificial teeth, and at least one through hole which is located in the at least one retainer, wherein the at least one through hole exposes at least a part of a basal surface or an occlusal surface of the one of the at least one prefabricated artificial tooth if inserted into the corresponding retainer. Also disclosed is a method for manufacturing at least one tooth cutting guide or tooth ridge lap guide for processing prefabricated artificial teeth and a method for producing a denture using first said method.

Claims35

Dependent claims

Tooth cutting guide or tooth ridge lap guide for processing at least one prefabricated artificial tooth from a set of prefabricated artificial teeth using a subtractive processing method, the tooth cutting guide or tooth ridge lap guide comprising:

a base body,
at least one retainer for receiving and positioning the at least one prefabricated artificial tooth, which is formed in the base body, wherein an inner surface of each of the at least one retainer form fits to a first surface area of one of the at least one prefabricated artificial tooth from the set of prefabricated artificial teeth, and
at least one through hole which is located in the at least one retainer, wherein the at least one through hole exposes at least a part of a basal surface or an occlusal surface of the one of the at least one prefabricated artificial tooth if inserted into a corresponding retainer.

Tooth cutting guide or tooth ridge lap guide for processing at least two prefabricated artificial teeth of a set of prefabricated artificial teeth using a subtractive processing method, the tooth cutting guide or tooth ridge lap guide comprising:

a base body,
a plurality of retainers for receiving and positioning a plurality of prefabricated artificial teeth which are formed in the base body, wherein inner surfaces of each retainer form fits to a first surface area of one of the plurality of prefabricated artificial teeth from the set of prefabricated artificial teeth, and
at least two through holes which are located in more than one of the plurality of retainers, wherein the at least two through holes each expose at least a part of a basal surface or an occlusal surface of at least two of the plurality of prefabricated artificial teeth if inserted into a corresponding retainer.

Method for manufacturing at least one tooth cutting guide or tooth ridge lap guide for processing prefabricated artificial teeth, the method comprising the following steps:

calculating a virtual model of a denture based on data from a virtual model of an oral cavity of a patient and data of virtual models of prefabricated artificial teeth from a set of prefabricated artificial teeth,
separating the virtual model of the denture into a virtual model of a denture base and a virtual model of processed prefabricated artificial teeth such that the virtual model of the processed prefabricated artificial teeth form fits to sockets in the virtual model of the denture base,
calculating a difference in shape of the virtual model of the processed prefabricated artificial teeth compared to the virtual model of the prefabricated artificial teeth,
calculating at least one virtual model of at least one tooth cutting guide or tooth ridge lap guide from the virtual model of the prefabricated artificial teeth and the calculated difference in shape, wherein each of the at least one virtual model of the tooth cutting guide or tooth ridge lap guide comprises a virtual model of a base body which comprises or which each comprise retainers for each of the prefabricated artificial teeth,
calculating inner surfaces of each retainer to have a form fit to a first surface area of the virtual model of the prefabricated artificial teeth in areas where there is no difference in shape compared to the virtual model of the processed prefabricated artificial teeth,
calculating through holes into the virtual model of the at least one tooth cutting guide or tooth ridge lap guide inside the virtual model of the base body, the through holes being located in the retainers, wherein borders of the through holes being defined by boundaries of the difference in shape of the virtual model of the processed prefabricated artificial teeth compared to the virtual model of the prefabricated artificial teeth, and
manufacturing the at least one tooth cutting guide or tooth ridge lap guide by a CAM method.

4 more elements

Dependencies are inferred from the claim text.

Tooth cutting guide or tooth ridge lap guide and method of manufacturing the same

Life of this patent

Tooth cutting guide or tooth ridge lap guide and method of manufacturing the same

Life of this patent

Abstract

Claims35