CHEMICAL VAPOUR DEPOSITION(CVD) DIAMOND BURS

CHEMICAL VAPOUR DEPOSITION(CVD) DIAMOND BURS

CVD technology allows high adherence of the diamond as a unique stone on the metallic surface with excellent abrading performance.

CVD diamond burs become an option for cavity preparation,and preservation of tooth structure.

In 1996,CVD diamond burs coupled with an ultrasonic handpiece were introduced in dentistry to eliminate problems relate with diamond burs

CVD method produce high adherence between the diamond film and metal surface,induced by chemical bond

Because of the inherent roughness of the sharp edged and polycrystalline diamond layers,these tools are well suited for tooth grinding










They are obtained by chemical vapour deposition( CVD) of diamond film over a molybdenum substrate.

They were synthesized inside an enhanced hot filament assisted reactor.

This manufacturing process,and the adaptation to an ultrasonic handpiece,provide some potential advantage.

SMART BUR 2

PROCEDURE









WITHOUT LA

SMART BUR Cutting is limited to the superficial layer of affected dentin will not remove the odontoblast reaction zone of mineralized tubule plugs and can be completed without the use of LA

When working with the polymer(SMART) bur, and early intensive contact with hard areas of the tooth should be avoided to reduce the possibility that the excavating performance of the bur is diminished.

Like conventional bur,polymer(SMART) bur rake angle is also negative.unlike cabide bur,the downward pressure applied by the polymer bur against the tissue is dessipated as the bur starts abrade when it encounters hard dentine

The dentist was requested to exert as little force as possible on the SMART BUR.

CONSERVATIVE

One of the goals of conservative dentistry is to develop a method of removing caries-infected dentin while preserving caries-affected dentin.

The polymer(SMART BUR) instrument appears to offer a
straightforward and efficient means of achieving this goal and conserving healthy tooth