Tuesday, September 16, 2008

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

Sunday, September 14, 2008

SMARTPREP (SMART BUR) INSTRUMENTS



POLYMER BUR or SMART BUR


The SMARTPREP Instrument is a medical grade polymer that safely and effectively remove decayed dentin, leaving healthy dentin intact.

The hardness of instrument is less than that of healthy dentin and enamel but harder than carious dentin

SELFLIMITING

The polymer instrument is self-limiting and will not cut sound dentin unless applied with great force, and then it will only wear away, rather than cut, the healthy dentin

Smartprep instrument in a range of sizes (equivalent to round burs nos. 2, 4 and 6)

The Smartprep Instrument is used in a slow speed handpiece (500-800 rpm) to complete caries removal

They are single-patient-use rotary instruments

Carious tissue is removed with circular movements starting from the centre to the periphery.

ADVANTAGE


They are being used for deep caries removal in anticipation of an indirect pulp capping procedure


Use the Smart-Prep burs in the beginning of their clinic experience and hopefully a

void iatrogenic pulp exposures


DISADVANTAGE


Polymer bur left large amount of decayed tissue unexcavated (underprepation)

Technique sensitive (the Smart Prep can be readily defeated by the dumb operator)


the burs disintegrate when they touch enamel or even sound dentin


potentially expensive