Damghani,M , , Hakimaneh,S M R , , Kargar,K , , Shahab,S , and Shayegh,S . "Radiographic comparison of crestal bone resorption around two implant systems; a retrospective study", Daneshvar Medicine, 30, 6, 2023, 57-69. doi: 10.22070/daneshmed.2023.16228.1221