How does a dentist decide whether to apply a numbing gel prior to giving an injection for a root canal?
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1 Expert Answer
Nirav P. answered • 05/17/20
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5
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Experienced Dentist
We prefer to giving numbing gel for all patients before injections unless the region is already numb from a previous injection.
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Dr. B.
https://www.ncbi.nlm.nih.gov/m/pubmed/26992649/ This is an article supporting that when teeth has necrotic ( non vital) pulp or retreated root canal teeth with a lesion ( infection) around the apex do not require local anesthetic.02/22/20