Application anesthesia
*The article was translated into English using automatic translation. The editors are working on its improvement.
Application (terminal, superficial) anesthesia is a procedure for non-injection application of solutions of local anesthetics (painkillers) on the surface of tissues or mucous membranes by lubrication or irrigation.
As a result, sensitivity decreases, and the patient does not feel anything within the treated area. Unlike injection techniques, this method is completely painless and is successfully used for anesthesia for shallow and extensive interventions. Can be used alone or in combination with infiltration or conduction anesthesia.
The operating principle of topical anesthesia is to block sensory receptors of nerve endings. When applied, the drug quickly penetrates to the nerve endings to a depth of 3-5 mm, blocking the passage of nerve impulses. The analgesic effect begins to appear within a few minutes and lasts up to half an hour, covering adjacent soft and hard tissues.