Dental drill bit

Details Dental drill bit Dental drill bit

1996-06-18

1998-06-09

Lucchesi, Nicholas D.

Dentistry

Apparatus

Tool bit

A61C 302

Patent

active

057624984

ABSTRACT:
An improved dental drill bit (10) for use in a dental drill (18) having a short drill bit tip (12) which has a drill bit tip point (12A) positioned at an upper most distal end. A drill bit tip bottom (12B) is positioned at an opposite distal end to the drill bit tip point (12A). At least one drill bit tip plateau (12CA, 12CB) extends from the drill bit tip bottom (12B) to the drill bit tip point (12A). At least one drill bit tip groove (12DA, 12DB) extends from the drill bit tip bottom (12B) to the drill bit tip point (12A). A drill bit tip leading edge (12E) is formed between the at least one drill bit tip plateau (12CA, 12CB) and the at least one drill bit tip groove (12DA, 12DB). A base (14) comprises an upper base (14A) securely connected to a lower base (14B) having a middle base (14C) therebetween. The upper base (14A) is securely connected to the drill bit tip bottom (12B). An elongated shaft (16) has a shaft top (16A) securely connected to a shaft bottom (16B) having a shaft middle (16C) therebetween. The shaft top (16A) is securely connected to the lower base (14B).

REFERENCES:
patent: 2453696 (1948-11-01), Brooks
patent: 4021920 (1977-05-01), Kirschner et al.
patent: 4869668 (1989-09-01), Seney
patent: 5069620 (1991-12-01), Matsutani
patent: 5096421 (1992-03-01), Seney
patent: 5098293 (1992-03-01), Loof et al.
patent: 5261818 (1993-11-01), Shaw
patent: 5275558 (1994-01-01), Seney
patent: 5433604 (1995-07-01), Landgraf
patent: 5435722 (1995-07-01), Mandell
patent: 5569035 (1996-10-01), Balfour et al.

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