Assertion: zirconia crown | /r/HasProperty | durable
Facets:
value: extremely
type: DEGREE
Source sentences:
text: zirconia crowns Zirconia crowns are extremely durable and tough but also highly aesthetic because they do not contain any metal in their structure
text: Zirconia crowns are durable and low-maintenance, but more expensive than gold, porcelain or ceramic crowns.