Assertion: mastoid process | /r/HasProperty | opened
Facets:
value: by drilling into the bone
type: MANNER
value: timely
type: DEGREE
Source sentences:
text: Hence, mastoids should be opened timely if lesion tissues cannot be entirely removed with the posterior ear canal wall preserved.
text: The mastoid must be reopened, and the vertical part of the nerve must be explored and, if necessary, grafted.
text: The mastoid is opened by drilling into the bone overlying it.