Color Stability of Prefabricated Pediatric Zirconia Crowns Following Sterilization.

Since pediatric zirconia crowns (ZRCs) are prefabricated, they may be sterilized following try-in for re-use. Possible changes in color stability, gloss, and translucency were evaluated for four brands of prefabricated zirconia crowns following autoclave and cold sterilization. Sixteen maxillary right central incisor prefabricated ZRCs were obtained from NuSmile ®, Sprig, Cheng Crowns, and Kinder Krowns ® manufacturers and either autoclaved or cold sterilized.