Assertion: dental implant | /r/HasProperty | lost greater than 0.2 mm
Facets:
value: a year after
type: TEMPORAL
Source sentences:
text: A dental implant is considered to be a failure if it is lost, mobile or shows peri-implant (around the implant) bone loss of greater than 1.0 mm in the first year and greater than 0.2 mm a year after.