Method for the manufacture of dental reconstructions and blank f

Details Method for the manufacture of dental reconstructions and blank f Method for the manufacture of dental reconstructions and blank f

1997-05-07

1999-08-17

Jones, Deborah

Stock material or miscellaneous articles

Article of intermediate shape

428 345, 428 357, 428 369, 428 3691, 428469, 428472, 428701, 428702, 433 49, 4332011, 433167, 433197, 433215, 433218, 4332221, 264 16, 264 17, 264 19, B32B 700

Patent

active

059392118

ABSTRACT:
A blank for preparing artificial tooth parts, such as inlays, overlays or partial and complete crowns and bridges comprises a body of laminate material. The body has at least one layer of high abrasive resistance, at least one layer of high breaking strength, and at least one layer of lower hardness and breaking strength. For forming the tooth part, material is removed from the blank in such a way that the layer having high fracture strength forms a reinforcing structure. In a single working step, a tooth part of high strength can be machined.

REFERENCES:
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patent: 4970032 (1990-11-01), Rotsaert
patent: 5151044 (1992-09-01), Rotsaert
patent: 5342696 (1994-08-01), Eidenbenz et al.
Marks et al., J. Dent. Res. 75:148, Abstract 1041, 1996.
Mormann et al. "CAD/CIM in Aesthetic Dentistry," CEREC 10 Year Anniversary Symposium, pp. 81-110, W.H. Mormann (Ed.), Quintessence Publishing Co., Inc., Chicago 1996.
"Cerec/Cerec 2, Vitablocs Mark II", VITA Zahnfabrik H. Rauter GmbH & Co., Sep. 1994.
"The New Epoch. Cerec 2", Siemens Aktiengesellschaft, Sep. 1994.

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