Dental anaesthetic. Dental worker injecting a local anaesthetic into the gum of a patient's tooth. This will numb the gum to allow a simple surgical p

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Dental anaesthetic. Dental worker injecting a local anaesthetic into the gum of a patient's tooth. This will numb the gum to allow a simple surgical procedure, such as a single tooth extraction, and reduce the patient's pain. Local anaesthesia allows the patient to remain conscious during the operation and is preferred to the more complicated general anaesthesia.

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Photo credit: © SAMUEL ASHFIELD/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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