What is it?

Absence of all sensation;
insensibility.
The term most commonly
refers to anaesthesia that is induced
artificially for medical purposes.
Anesthesia: types

Two
types of anaesthesia are used: local
and general.
Anesthesia: Usage

Dental Loss of sensation
induced in a patient to prevent pain
during dental treatment.
For minor procedures

a local anaesthetic
(see anaesthesia, local) is injected
either into the gum at the site being
treated or into the nerve a short distance
away (called a peripheral nerve
block).
For complicated procedure

such as periodontal
(gum) surgery and multiple
tooth extractions, general anaesthesia
is carried out (see anaesthesia, general).
anaesthesia,
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