The test kit uses a liquid culture medium to accelerate growth, averaging five to 10 days. Vials and reagents are color coded to simplify the procedure
The tooth in a dental clinic, color matching of dental restorative materials with the tooth is performed using a shade guide. The shade guide is a standard model consisting of several shade tabs based on the color distribution of natural teeth. Stable light source avoids choice of the wrong tooth color due to unstable light, thus avoiding disputes.