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Topical anesthetic
Also called: topical, numbing gel, benzocaine gel
A numbing gel, liquid or spray placed on the gum before an injection.
Topical anesthetic numbs only the surface of the tissue so the needle stick is less noticeable. The site is dried with gauze and a small amount is placed with a cotton-tipped applicator for the time the product directs (often about a minute). Benzocaine 20% is a common example; it starts working within seconds to a minute.
How to spot it
- A small jar or tube of flavored gel, or a spray, with cotton-tipped applicators.
What it is used for
- Placed by the dentist or, where your state allows, by the assistant, before injections.
Safety and care
- Use only a small amount; the FDA warns that benzocaine can cause methemoglobinemia (a dangerous blood problem) and should not be used in children under 2.
- Follow your office's protocol and your state's rules on who may place topical.
Related
Sources: FDA. Drug Safety Communication (May 23, 2018): OTC oral benzocaine products and methemoglobinemia, Drugs.com. Benzocaine (EENT) monograph, Dentalcare.com CE643. The Concepts of Four-handed Dentistry Including Ergonomic Instrument Transfer. Pages: zones of activity, single-handed transfer, two-handed transfer, scissors/hinged instruments, syringe transfer, non-locking forceps