IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-13-6-56466 Original Research Paper Comparative Evaluation Of Colour Stability In Laboratory Provisional Crown And Bridge Materials Exposed To Varying Concentrations Of Chlorhexidine Gluconate Mouth Rinse At Different Time Intervals: An In Vitro Study. Susan Raju Dr. Jinsa P Devassy Dr. June 2024 13 6 01 02