ABSTRACT
Objective: To analyze the effect of citric acid solution on the surface roughness of RMGIC with immersion time of 1 hour, 3 hours and 5 hours. Methods: This research is a laboratory experiment with pre-test post-test method. Using RMGIC chip specimen samples soaked in citric acid solution with pH 3 for 1 hour, 3 hours and 5 hours. Surface roughness is then measured using a profilometer. Result: There was a significant change between the surface roughness of the RMGIC specimen material before and after immersion in citric acid in the three-time groups. Conclusion: This surface roughness evaluation impacts food residue adhesion, abrasion resistance, and material interaction with surrounding tissue. Dentists should advise patients to reduce or avoid drinks containing citric acid, such as carbonated or sour fruit drinks.
