Guide post for trephine

Details Guide post for trephine Guide post for trephine

2005-08-02

2005-08-02

O'Connor, Cary E. (Department: 3732)

Dentistry

Method or material for testing, treating, restoring, or...

Crown

C433S174000

Reexamination Certificate

active

06923650

ABSTRACT:
A pilot bore is cut into bone tissue; a post is fixed in the bore, and an elongate enlarged region is formed at the top end of the bore using a tubular cutter which is guided on the post. The elongate enlarged region can be accurately cut even with a hand drill due to the guidance provided by the post. The cutter may have holes or channels for circulation of cooling/lubricating liquid, and a swarf-removing slot may be provided. When the technique is used in dentistry for replacement of a tooth crown, a tubular support element is fixed around the post in the bore enlargement.

REFERENCES:
patent: 4693644 (1987-09-01), Takahashi
patent: 5118294 (1992-06-01), Kurer
patent: 5161973 (1992-11-01), Johnson
patent: 5282747 (1994-02-01), Nordin
patent: 5453010 (1995-09-01), Klein
patent: 29700604 (1997-07-01), None
patent: 0 336 082 (1989-11-01), None

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