Ana sayfa Sorular ve Cevaplar Treatments Root Canal Treatment What happens if root canal treatment fails? What happens if root canal treatment fails? Updated on: April 27, 2026 A repeat root canal treatment (retreatment) or surgical procedure may be performed. How did you find the answer? Happy Normal Sad Share the question: Do antibiotics need to be used after root canal treatment?Can a tooth that has undergone root canal treatment become fragile?