topical anesthesia
Học thuậtThân thiện
The dentist applies topical anesthesia to the patient's gum before the procedure.
Definition
Noun: A type of local anesthesia that causes a loss of sensation only on a specific, localized area of the skin or a mucous membrane. This is achieved by applying an anesthetic agent directly to the body's surface.
Usage
This term is used in medical contexts to describe a numbing technique for superficial procedures. It is a precise, non-systemic method of anesthesia. - The dentist used topical anesthesia on my gums before giving the injection. - Minor skin surgeries often require only topical anesthesia.
Advanced Usage
- Mechanism: The anesthetic drug blocks nerve signals at the site of application without entering the bloodstream in significant amounts.
- Contrast with other anesthesia: Unlike general anesthesia (which affects the whole body and consciousness) or regional anesthesia (which numbs a larger area like a limb), topical anesthesia is strictly surface-level.
Variants and Related Words
- Topical anaesthesia: The British English spelling variant.
- Surface anesthesia: A less common synonym.
- Topical anesthetic (noun): The drug used to induce topical anesthesia, such as lidocaine or benzocaine.
Synonyms
- Surface anesthesia
- Localized surface numbness
Related Phrases
- Apply topical anesthesia: To administer the anesthetic.
- The nurse will apply topical anesthesia before the suture removal.
- Under topical anesthesia: Describing a procedure performed using this method.
- The biopsy was performed under topical anesthesia.
The dentist applies topical anesthesia to the patient's gum before the procedure.
Noun
- loss of sensation confined to the skin or mucous surfaces (as when benzocaine or Lidocaine is applied to the surface)