In the 1840s, the introduction of the first three surgical anesthetics occurred. These agents were nitrous oxide, chloroform, and:
A. ester
B. ether
C. chlorophyll
D. ammonium dioxide
b
Rationale: In the 1840s, surgical anesthesia became possible with the introduction of three agents in quick succession: chloroform, ether, and nitrous oxide.
Health Professions
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Fill in the blank(s) with correct word
Health Professions
What is the best guide for an erupting permanent tooth?
a. No guide is needed b. Primary tooth c. Space maintainer d. None of the above
Health Professions