Most root canals are done with regular Novocaine (BTW, this is technically not true anymore. Novocaine isn't used is a liquid anesthesia anymore due to allergic reactions. It's mainly used in the topical gel that is placed on the tissue before numbing).
If patients request to be completely sedated then I have a dental anesthesiologist that comes to my office. He does his thing and I do mine. We never do general anesthesia (unless we are at a hospital setting), it's usually IV sedation (patient still breathes on their own).
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