Comparative evaluation of surface roughness of posterior primary zirconia crowns.
Tarun WaliaC BrigiAbdel Rahman M M KhirAllahPublished in: European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry (2018)
Mechanically polished posterior primary zirconia crowns had a smoother surface profile than the combined polished-glazed primary zirconia crowns. Cheng Crowns had the lowest mean Ra and Rz values although not statistically significant from Sprig EZCrowns and Nu Smile. Kinder Krowns had the highest mean Ra and Rz scores than other crown groups.