根管治療（「神経を取る」）とは？何回通う？

FAQ

根管治療は何回なら普通ですか？

標準回数はありません。単回・複数回の優劣を示す根拠はなく、複雑性、感染制御、希望、日程で決めます [F7][F10]。

根管治療は何回なら普通ですか？ — 標準回数はありません。単回・複数回の優劣を示す根拠はなく、複雑性、感染制御、希望、日程で決めます [F7][F10]。

How many visits are normal for root canal treatment? — The literature gives no standard number. The current Cochrane review finds no evidence that either single- or multiple-visit treatment is more effective [F7]. The 2026 umbrella review says visit strategy can depend on case complexity, infection-control needs, patient preference, and timing [F10]. Ask your own dentist how many visits and why [F10].

1 回で終える方が痛いですか？

1 週間以内の疼痛報告は単回群で高かった一方、2026 年レビューは一貫した臨床的重要差を示しませんでした。根拠は収束途上です [F8][F10]。

1 回で終える方が痛いですか？ — 1 週間以内の疼痛報告は単回群で高かった一方、2026 年レビューは一貫した臨床的重要差を示しませんでした。根拠は収束途上です [F8][F10]。

Is finishing it in one visit more painful? — The current Cochrane review reports a higher proportion with pain within one week in the single-visit group, risk ratio 1.55 (moderate-certainty evidence), with a clearer subgroup difference in vital teeth [F8]. Yet the 2026 umbrella review of 12 systematic reviews found that higher-certainty reviews did not show a consistent or clinically important difference [F10]. Read together, these findings mean the evidence is still converging [F8][F10].

治療は痛いですか。どのくらい続きますか？

群体値は 81%、24 時間後 40%、1 週後 11% で、強度は 54、24、5 です。6 か月以上続く痛みは約 5.3% で、再診断を受けます [F12][F13][F14]。

治療は痛いですか。どのくらい続きますか？ — 群体値は 81%、24 時間後 40%、1 週後 11% で、強度は 54、24、5 です。6 か月以上続く痛みは約 5.3% で、再診断を受けます [F12][F13][F14]。

Does “nerve removal” hurt, and how long does pain last afterward? — In the systematic review’s group figures, pain prevalence was 81% before treatment, 40% at 24 hours, and 11% at one week; intensity on a 0-to-100 scale fell from 54 to 24 to 5 [F12]. Supplemental anaesthesia was frequently required, so say so during treatment if it hurts [F12]. If pain persists six months after treatment, estimated prevalence is about 5.3%, and a substantial proportion of causes are outside that tooth; return for re-diagnosis [F13][F14].

クラウンは必ず必要で、台湾健保は払いますか？

破折しやすさやクラウンとの関連はありますが、直接比較根拠は不足し個別判断です。給付は台湾健保署の現行公告によります。本カードは判定しません [F16][F19][F21][F25][F26][F27]。

クラウンは必ず必要で、台湾健保は払いますか？ — 破折しやすさやクラウンとの関連はありますが、直接比較根拠は不足し個別判断です。給付は台湾健保署の現行公告によります。本カードは判定しません [F16][F19][F21][F25][F26][F27]。

Does every root-canal-treated tooth need a crown, and does Taiwan NHI pay? — Treated teeth are generally more susceptible to fracture [F21]. A systematic review lists crown restoration after treatment as one condition associated with higher survival, but says evidence for prognostic factors is weak [F16]. Direct randomized evidence comparing crowns with conventional fillings is insufficient, so the clinical decision depends on the individual case [F19]. For payment, use the NHI Administration’s current published payment standard; this card makes no determination. Article 51 also lists dentures and other non-actively-therapeutic appliances outside payment scope [F25][F26][F27].

治療後も虫歯・痛みは起こりますか。再診は必要ですか？

起こり得るため必要です。長期存留データと少なくとも 1 年後の画像評価を踏まえ、歯科医師の計画に従います [F7][F16][F17][F18]。

治療後も虫歯・痛みは起こりますか。再診は必要ですか？ — 起こり得るため必要です。長期存留データと少なくとも 1 年後の画像評価を踏まえ、歯科医師の計画に従います [F7][F16][F17][F18]。

Can a root-canal-treated tooth decay or hurt again, and is continued review needed? — Yes, and yes. Pooled long-term survival was 86% at 2 to 3 years, 93% at 4 to 5 years, and 87% at 8 to 10 years, meaning some teeth were extracted during follow-up [F16]. The review assesses radiological outcomes at least one year after treatment, while long-term data accumulate with yearly follow-up [F7][F17][F18]. Follow-up intervals and care should follow your dentist’s plan.