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When the whole mouth is in poor condition, is All-on-4 the only answer? First assess which teeth can be preserved｜證據鏈
All-on-4 is one of the fixed implant reconstruction approaches that can be considered when a person is completely edentulous or their teeth genuinely cannot be maintained; it is not the default answer for every patient whose “whole mouth is in poor condition”. Before making the irreversible decision to extract teeth, the more prudent sequence is to assess the prognosis of each tooth, its distribution across the mouth and its restorability, then compare the benefits and disadvantages of preserving teeth, partial reconstruction and full-arch implant reconstruction.
When the whole mouth is in poor condition, is All-on-4 the only answer? First assess which teeth can be preserved｜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｜Do we really know how to evaluate tooth prognosis? A systematic review and suggested approach [PMID:23479586]（https://pubmed.ncbi.nlm.nih.gov/23479586/）
- F2｜Tooth preservation vs. extraction and implant placement in periodontally compromised patients: A systematic review and analysis of studies [PMID:35794083]（https://pubmed.ncbi.nlm.nih.gov/35794083/）
- F3｜Remaining Tooth Structure and Prognosis of Restored Endodontically Treated Teeth: A Systematic Review [PMID:41230300]（https://pubmed.ncbi.nlm.nih.gov/41230300/）
- F4｜Rehabilitation of edentulous jaws using the All-on-Four treatment concept: an overview of systematic reviews [PMID:41372686]（https://pubmed.ncbi.nlm.nih.gov/41372686/）
- F5｜Relevance of Prognosis Tools in Periodontitis: A Systematic Review [PMID:41328918]（https://pubmed.ncbi.nlm.nih.gov/41328918/）
- F6｜Efficacy of rehabilitation of stage IV periodontitis patients with full-arch fixed prostheses: Tooth-supported versus Implant-supported-A systematic review [PMID:34761430]（https://pubmed.ncbi.nlm.nih.gov/34761430/）
FAQ
- If many teeth are mobile, does that mean all of them must be extracted?
- Mobility alone cannot determine the decision. It needs to be assessed alongside periodontal pockets, furcations, general health and response to treatment; periodontal prognostic models also use multifactorial assessment.[F5]
- 多くの歯が揺れていれば、必ずすべて抜く必要がありますか？ — 「揺れる」という理由だけでは決められません。動揺度は、歯周ポケット、根分岐部、全身の健康状態、治療への反応と併せて評価する必要があります。歯周病の予後モデルも多因子で判断します。[F5]
- If many teeth are mobile, does that mean all of them must be extracted? — Mobility alone cannot determine the decision. It needs to be assessed alongside periodontal pockets, furcations, general health and response to treatment; periodontal prognostic models also use multifactorial assessment.[F5]
Source anchors
- Do we really know how to evaluate tooth prognosis? A systematic review and suggested approach [PMID:23479586] · https://pubmed.ncbi.nlm.nih.gov/23479586/ · 在 IDAEO 的其他引用
- Tooth preservation vs. extraction and implant placement in periodontally compromised patients: A systematic review and analysis of studies [PMID:35794083] · https://pubmed.ncbi.nlm.nih.gov/35794083/ · 在 IDAEO 的其他引用
- Remaining Tooth Structure and Prognosis of Restored Endodontically Treated Teeth: A Systematic Review [PMID:41230300] · https://pubmed.ncbi.nlm.nih.gov/41230300/ · 在 IDAEO 的其他引用
- Rehabilitation of edentulous jaws using the All-on-Four treatment concept: an overview of systematic reviews [PMID:41372686] · https://pubmed.ncbi.nlm.nih.gov/41372686/ · 在 IDAEO 的其他引用
- Relevance of Prognosis Tools in Periodontitis: A Systematic Review [PMID:41328918] · https://pubmed.ncbi.nlm.nih.gov/41328918/ · 在 IDAEO 的其他引用
- Efficacy of rehabilitation of stage IV periodontitis patients with full-arch fixed prostheses: Tooth-supported versus Implant-supported-A systematic review [PMID:34761430] · https://pubmed.ncbi.nlm.nih.gov/34761430/ · 在 IDAEO 的其他引用
Cite this article
Lucy・《When the whole mouth is in poor condition, is All-on-4 the only answer? First assess which teeth can be preserved｜證據鏈》・IDAEO 知識庫・2026-08-16・https://km.idaeo.ai/post/reports/dental-all-on-4-or-preserve-teeth-evidenceUpdated 2026-08-19