🏛 Part of the "reports" topic shelf →
Root canal treatment failure: retreatment, apical surgery or extraction?｜證據鏈
A persistent radiolucency, swelling or discomfort on biting after root canal treatment does not mean that extraction is the only option. Nonsurgical root canal retreatment re-enters from the coronal direction with the aim of removing old material, finding missed spaces and cleaning them again; apical surgery approaches the lesion and root apex from the end of the root. Neither is a higher- or lower-tier treatment: their routes of access differ. A systematic review of direct comparisons found only 5 studies with 529 teeth available for follow-up. Most studies had a high risk of bias, and meta-analysis was not possible; the authors therefore did not conclude that either treatment was clearly superior. A tooth-preserving route may cease to be reasonable when there is a vertical root fracture, decay extends so deeply that the tooth cannot be restored, or periodontal support is inadequate. The order of decision-making should be: diagnose the cause, assess restorability, compare the cost of access, and only then discuss reconstruction after extraction.
Root canal treatment failure: retreatment, apical surgery or extraction?｜證據鏈
本頁逐條列出本卡每一個 [Fn] 標記對應的文獻出處。
- F1｜Non-surgical root canal treatment and retreatment versus apical surgery in treating apical periodontitis: A systematic review. [PMID:35762859]（https://pubmed.ncbi.nlm.nih.gov/35762859/）
- F2｜Outcome of Contemporary Nonsurgical Endodontic Retreatment: A Systematic Review of Randomized Controlled Trials and Cohort Studies. [PMID:38280514]（https://pubmed.ncbi.nlm.nih.gov/38280514/）
- F3｜Long-Term Prognosis of Endodontic Microsurgery-A Systematic Review and Meta-Analysis. [PMID:32899437]（https://pubmed.ncbi.nlm.nih.gov/32899437/）
- F4｜Outcome of nonsurgical retreatment and endodontic microsurgery: a meta-analysis. [PMID:25595864]（https://pubmed.ncbi.nlm.nih.gov/25595864/）
- F5｜Comparison of Endodontic Failures between Nonsurgical Retreatment and Endodontic Surgery: Systematic Review and Meta-Analysis with Trial Sequential Analysis. [PMID:35888613]（https://pubmed.ncbi.nlm.nih.gov/35888613/）
- F6｜Endodontics, Endodontic Retreatment, and Apical Surgery Versus Tooth Extraction and Implant Placement: A Systematic Review. [PMID:28343928]（https://pubmed.ncbi.nlm.nih.gov/28343928/）
FAQ
- If there is only a radiolucency and no pain, does the treatment need to be redone immediately?
- Not necessarily. Images from different times, the interval since treatment was completed, whether the lesion is shrinking, and whether there is clinical swelling, a sinus tract or functional discomfort need to be compared. A single image is insufficient to decide on immediate intervention.
- 透過像があるだけで痛みがなくても、直ちに再治療が必要ですか？ — 必ずしもそうではありません。異なる時期の画像、治療完了からの期間、病変が縮小しているか、臨床的な腫れ、瘻孔、機能時の不快感があるかを比較する必要があります。単独の画像だけでは、直ちに介入するかを決められません。
- If there is only a radiolucency and no pain, does the treatment need to be redone immediately? — Not necessarily. Images from different times, the interval since treatment was completed, whether the lesion is shrinking, and whether there is clinical swelling, a sinus tract or functional discomfort need to be compared. A single image is insufficient to decide on immediate intervention.
Source anchors
- Non-surgical root canal treatment and retreatment versus apical surgery in treating apical periodontitis: A systematic review. [PMID:35762859] · https://pubmed.ncbi.nlm.nih.gov/35762859/ · 在 IDAEO 的其他引用
- Outcome of Contemporary Nonsurgical Endodontic Retreatment: A Systematic Review of Randomized Controlled Trials and Cohort Studies. [PMID:38280514] · https://pubmed.ncbi.nlm.nih.gov/38280514/ · 在 IDAEO 的其他引用
- Long-Term Prognosis of Endodontic Microsurgery-A Systematic Review and Meta-Analysis. [PMID:32899437] · https://pubmed.ncbi.nlm.nih.gov/32899437/ · 在 IDAEO 的其他引用
- Outcome of nonsurgical retreatment and endodontic microsurgery: a meta-analysis. [PMID:25595864] · https://pubmed.ncbi.nlm.nih.gov/25595864/ · 在 IDAEO 的其他引用
- Comparison of Endodontic Failures between Nonsurgical Retreatment and Endodontic Surgery: Systematic Review and Meta-Analysis with Trial Sequential Analysis. [PMID:35888613] · https://pubmed.ncbi.nlm.nih.gov/35888613/ · 在 IDAEO 的其他引用
- Endodontics, Endodontic Retreatment, and Apical Surgery Versus Tooth Extraction and Implant Placement: A Systematic Review. [PMID:28343928] · https://pubmed.ncbi.nlm.nih.gov/28343928/ · 在 IDAEO 的其他引用
Cite this article
Lucy・《Root canal treatment failure: retreatment, apical surgery or extraction?｜證據鏈》・IDAEO 知識庫・2026-08-16・https://km.idaeo.ai/post/reports/dental-root-canal-retreatment-options-evidenceUpdated 2026-08-19