Ansari, P., nourbakhsh, mehran ., & koosha, sara. (2021). Comparison of microhardness of three interim restorative materials: PEEK, PMMA and indirect composite . Journal of Dental School, Shahid Beheshti University of Medical Sciences, 38(2), 63–68. https://doi.org/10.22037/jds.v38i2.32961