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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0219804 (1994-03-29) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 335 인용 특허 : 0 |
A method for the making of a tooth mold which includes the steps of scanning the surface of a model of a tooth to obtain data on the three-dimensional surface locations of the model, processing the data in a CAD/CAM computer, and using the processed data to fabricate a tooth mold. The scanning step
A method for the making of a tooth mold which includes the steps of scanning the surface of a model of a tooth to obtain data on the three-dimensional surface locations of the model, processing the data in a CAD/CAM computer, and using the processed data to fabricate a tooth mold. The scanning step involves subjecting a rotating tooth model to radiant energy from a laser beam, receiving and translating reflections of the radiant energy into electronic signals, and digitizing the signals into data of the three-dimensional surface locations of the tooth model. The processing step involves translating the data, editing the data, creating a three-dimensional surface pattern of the tooth model, evaluating the surface pattern by visual analysis and comparison to known geometric values of the tooth model, and creating a tooth path program. Finally, the fabricating step involves using the tooth path program to direct a machine to mill a tooth mold and using the same program to direct a machine to finish-polish the mold.
A method of repeatedly molding high definition artificial dental teeth each having a molded coating, comprising: scanning a model of a dental tooth, and milling to make at least three mold parts each said part being milled with a first mill by executing a first pass along a first tool path to remove
A method of repeatedly molding high definition artificial dental teeth each having a molded coating, comprising: scanning a model of a dental tooth, and milling to make at least three mold parts each said part being milled with a first mill by executing a first pass along a first tool path to remove material to form multiple cavities in a first metal block to make a multiple cavity mold part adapted to form multiple dental prosthetic teeth, said milling being directed by a milling program which uses edited data, said edited data being obtained by editing reflection data using a design program, said reflection data being representative of the surface of said tooth model, said edited data being representative of the surface of said dental artificial teeth, said edited data being adapted by said milling program to direct said milling along said tool path and repeatedly molding in said mold high definition artificial dental teeth each having a molded coating.
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