Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1996-03-15
1998-02-10
Lewis, Ralph
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433172, A61C 800
Patent
active
057162158
ABSTRACT:
A post and core for dentures which is machinable to adjust for axial misalignment of a denture with respect to surrounding dentures or teeth. The core has excess material which is machined away by a dental practitioner to result in a core appropriately oriented to compensate for the misalignment. The unnecessary material projects from the core to form a pie slice or wedge configuration. The pie slice or wedge tapers to a maximum cross sectional area with increasing distance from the post. The included angle of the wedge does not exceed thirty degrees when the post is hexagonal. The novel configuration of the core minimizes volume of material which must be removed by tedious hand machining to result in a core which is appropriately angled with respect to the post in order to overcome the misalignment.
REFERENCES:
patent: 2735181 (1956-02-01), Carpenter
patent: 2793438 (1957-05-01), Ashkin
patent: 5052929 (1991-10-01), Seal
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patent: 5135395 (1992-08-01), Marlin
patent: 5238405 (1993-08-01), Marlin
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patent: 5350302 (1994-09-01), Marlin
patent: 5407359 (1995-04-01), Balfour et al.
patent: 5564923 (1996-10-01), Grassi et al.
Lewis Ralph
Siemens Terrance L.
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