Dental bur with enhanced durability

Details Dental bur with enhanced durability Dental bur with enhanced durability

1985-07-05

1987-07-21

Peshock, Robert

Dentistry

Apparatus

Tool bit

408144, A61C 302

Patent

active

046815414

ABSTRACT:
A dental bur whose abrading or cutting surfaces are covered by an adherent layer of a suitable nitride or carbide deposited thereon. The layer is deposited on edge surfaces and adjacent surfaces by vacuum deposition, are deposition, are catheter sputtering to produce a larger of thickness controlled to be insufficiently thick to form an unsuitably dull edge.

REFERENCES:
patent: 2084329 (1934-10-01), Emmons
patent: 3755866 (1973-09-01), Ohlsson
patent: 4058898 (1977-11-01), Nasa

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