Abstract
To evaluate surface quality and dimensional accuracy of elastomeric impression materials after various disinfection protocols. A Total of 150
samples were made i.e..50 from each type of impression material. Specimens were immersed in disinfectant solutions namely 0.2%
chlorhexidine,5.25% hypo,0.2% povidone iodine, running tap water and ozone water for disinfection and examined for surface quality using
stereomicroscope and dimensional accuracy using digital Vernier calipers. Silicones exhibited best dimensional accuracy & surface quality when
treated with ozone water after 24 hours of disinfection whereas polyether exhibited good surface quality & dimensional accuracy when treated with
control (tap water) after 24 hours of disinfection.