Fig. 6
From: Advantages and feasibility of prefabricated PEEK crowns for aesthetic restoration in primary teeth
(a, b) Compressive and fatigue strength of 3 different prefabricated pediatric crowns. (c-e) The failure mode and fracture surface of three different kinds of prefabricated pediatric crowns: (c) Prefabricated PEEK crown; (d) Zirconia crown and (e) Performed metal crown.
