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Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Suggest local anesthetic for root canal

I am allergic to PPD and having a root canal tomorrow. PPD is the ingredient in hair dye that can cause a reaction. What type of local anesthetic is safe to use ? Septocaine and lidocaine has been used in the past, but it has been many years since I have had to have dental work and the ppd allergy has just occurred over the past couple of months. My endodontist said to ask my allergist and my allergist wanted to know what I have previously tolerated. I told them that I haven't had work done since the PPD allergy.
Fri, 17 Jan 2014
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Dentist 's  Response
Hello and welcome to HCM forum.
I would like to inform you that being allergic to para - phenylenediamine does not interfere with administration of local anesthesia.
Lignocaine and xylocaine are safe in your case.
Being allergic to PPD restricts you from exposure to hair dyes, printing inks some medications which hav sulphonamides.
I will advise you to consult your dermatologist as well before taking any medication.
I hope i answered your query.
I wish you good health.
Take care.
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