A comparative evaluation of marginal accuracy and colour stability of provisional restorations fabricated from one cold cure acrylic resin, two autopolymerizing resins and one Light cure resin provisional materials.

Dr Anuradha Mohite; Dr Prasad Adhapure; Dr Jitendra Shinde; Dr Nimisha Barve; Ashutosh Pai

Volume : VII, Issue : VIII, August - 2018

A comparative evaluation of marginal accuracy and colour stability of provisional restorations fabricated from one cold cure acrylic resin, two autopolymerizing resins and one Light cure resin provisional materials.

Dr Anuradha Mohite, Dr Prasad Adhapure, Dr Jitendra Shinde, Dr Nimisha Barve, Ashutosh Pai

Abstract :

The purpose of the present study was to evaluate and compare the marginal accuracy and color stability of four commercially available provisional restorative materials including one cold cure acrylic resin, two autopolymerizedbis– acrylic composite resins and one light–cured composite resin.Marginal discrepancy was measured by measuring the distance between the vertical reference line and crown margin of the restoration using a metallurgical microscope.

Marginal accuracy was found be in the following order.

Luxatemp>= Protemp IV > DPI >Revotek LC.

Forty disc specimens of 10 X 2 mm diameter each from cold cure acrylic resin, Protemp IV, Luxatemp, Revotek LC were faicated to evaluate color stability in tea solution and artificial saliva.It was observed that there was least mean color change in the tea solution for cold cure acrylic resin.