Introduction: Provisional prosthodontic materials provide pulpal protection by covering the prepared tooth structure, providing thermal insulation, and preventing leakage by forming an intimate seal with the prepared tooth during the fabrication of the definitive prosthesis. Aims and Objectives: To compare colour stability of provisional restoration to provide an initial esthetic shade match and then to remain colour-stable during its period of service. Material and Methods: A total of 90 disc-shaped specimens (10 __ampersandsignplusmn; 0.1mm by 1 __ampersandsignplusmn; 0.05mm) will be fabricated with three commercially available provisional prosthodontic materials: Methyl Methacrylate Resin (RR Rapid Repair, Dentsply), Methyl Methacrylate Resin (RR Cold Cure, DPI), Methyl Methacrylate Resin (Acrylic-R, Asian). Ten specimens of each material will be randomly selected and immersed individually in coffee (37__ampersandsigndeg;C) for 20 days or exposed to UV irradiation for 1 hour time respectively. Colour will be measured with a colourimeter before and after the immersion or UV exposure. Colour change (?E) will be calculated and data will be analysed by 1-way ANOVA and the Tukey multiple comparisons test (__ampersandsignalpha; =0.05). Results: In 3 types of provisional restorative material, Asian provisional restorative material shows the highest colour difference and least colour stability. Integrity provisional restorative material sample shows the lowest colour difference and highly colour stable. Comparison of mean of colour change by coffee and UV light shows that coffee caused more colour change than UV light. Discussion and Conclusion: Discolouration of provisional materials in fixed prosthodontics may lead to patient dissatisfaction and additional expense for replacement. The stainability of the various materials is not just related to the chromogens but also to the chemical composition of the materials that are being tested.