Assertion: nitrous oxide | /r/ObjectUse | used as anesthetic
Facets:
value: medically
type: MANNER
value: with virtually no risk
type: OTHER
value: as a short acting
type: MANNER
value: around 1840
type: TEMPORAL
value: in dentistry
type: LOCATION
Source sentences:
text: Nitrous oxide began to be used as an anesthetic in dentistry around 1840.
text: Nitrous Oxide is important because it can be used as a short acting (1-5 minute duration) anesthetic with virtually NO risk.
text: Nitrous oxide is a gas used medically as an anaesthetic.
text: Laughing gas is used medically as an anesthetic and anxiolytic in dentistry.
text: Additionally, it is used as an anesthetic.