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periapical abcess/ gum boil

I had a root canal over 20 years ago in #19. 2 months ago I developed a periapical abscess and then a gum boil. I was treated with antibiotics and then 2 days ago had  root canal re-treatment. How long before I know that the re-treatment is effective? Currently I have only minor discomfort and swelling, but the gum boil remains. Should the gum boil have resolved by now?
2 Responses
Avatar universal
Gum boil tends to resolve within a week if retreatment of root canal is successful.
Avatar universal
Thanks for your response!  :)
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taipei, Taiwan
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