Allen Ali NassehAllen Ali Nasseh

@rparmar: mepivacain plain is only used as a pre-anesthesia. It’s role is to numb up soft tissue before giving any anesthesia with a catecolamine containing anesthetic that is typically more acidic and therefore more painful.
Myotonic quality of Marcaine and Bupivacaine has been known for a long time.
I don’t give Marcaine shots routinely. Only for this type of emergency care at the end of the day and for post op after surgery as it reduces inflammation.
Your friend’s parenthesis was Likey accidental. Normally 6-10 hours is what you would expect from a block.
For conventional RCT molar in mandible I give 1 block mepivacain plain as preamesthesia and two blocks of Septicaine with 1:100,000epi with one carpet Septocaine buffalo infiltration.
And no, worries Septocaine doesn’t cause paresthesia.

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