Assertion: anesthesia | /r/HasProperty | necessary
Facets:
Source sentences:
text: Although root canals have become much easier over the years, they are another example of when an anesthesia is necessary.
text: 2 months later they still look like they do in the photo above, BUT they are still there and no root canal is needed (no anesthesia was needed either!).
text: Every precaution will be taken to minimize these risks when anesthesia is a necessary part of treatment.
text: Many people seem to just look at anesthesia alone, seemingly forgetting that anesthesia is necessary to make the operation possible.