根管治療後に「歯のピンを入れる」と言われたら——それは何で、必ず必要？｜證據鏈

根管治療後に「歯のピンを入れる」と言われたら——それは何で、必ず必要？｜證據鏈

F-Units（事実単元帳）

• F1｜confidence: verified｜basis: law（台湾医療法第 21 条、第 22 条）｜period: 現行条文、2026-08-06 に curl で全国法規資料庫の条文ページを HTTP 200 で取得し条文を逐字照合｜geo: TW｜span: “The standards for medical institutions to charge medical fees shall be approved by the competent authority of special municipality, county or city.”｜caveat: 金額・項目を含まない。本記事は第 22 条全文を引用せず、checklist の領収書義務だけを要約する。
• F2｜confidence: verified｜basis: law（台湾医療法第 87 条、第 81 条）｜period: 現行条文、2026-08-06 curl HTTP 200 で逐字照合｜geo: TW｜span: “The publishing of medical new knowledge or research reports, health education for patients and academic publications that do not involve soliciting medical business shall not be deemed medical advertisements.”｜span: “When treating a patient, a medical institution shall inform the patient or his legal representative, spouse, relative or related person of his condition, treatment policy, treatment, medication, prognosis and possible adverse reactions.”｜caveat: 第 87 条は衛生教育の位置づけであり広告許可ではない。
• F3｜confidence: verified｜basis: official_statement（MeSH Post and Core Technique、UID 68011176、2026-08-06 efetch db=mesh）｜period: Year introduced: 1991(1975)｜geo: universal｜span: “Use of a metal casting, usually with a post in the pulp or root canal, designed to support and retain an artificial crown.”｜caveat: 金属鋳造の定義で、既製ファイバー等（F10、F12、F13、F14）もある。名称対応は台北市の項目名による。
• F4｜confidence: verified｜basis: official_statement（MeSH Orthodontic Anchorage Procedures、UID 68052280、2026-08-06 efetch db=mesh）｜period: Year introduced: 2006｜geo: universal｜span: “Attachment of orthodontic devices and materials to the MOUTH area for support and to provide a counterforce to orthodontic forces.”｜caveat: Entry Terms に temporary anchorage device はなく、各名称は F18 の検索語である。
• F5｜confidence: verified｜basis: official_statement（MeSH Dental Implants、UID 68015921、2026-08-06 efetch db=mesh）｜period: Year introduced: 1990｜geo: universal｜span: “Biocompatible materials placed into (endosseous) or onto (subperiosteal) the jawbone to support a crown, bridge, or artificial tooth, or to stabilize a diseased tooth.”｜記録: Dental Implant／Implant, Dental／Implants, Dental／Dental Prostheses, Surgical／Dental Implants, Mini／Dental Implant, Mini／Mini Dental Implant／Mini Dental Implants｜caveat: 器材分類で適応判断ではない。「罹患歯を安定」も含むため丸ごとの欠損に限らない。Mini Dental Implant の重複名は同一処置を意味しない。
• F6｜confidence: verified｜basis: official_statement（台湾 FDA 委託の医療機器分類データベース、2026-08-06 ego-browser 実査）｜period: 2026-08-06 の検索状態｜geo: TW｜記録: 牙釘 0、支抗 0、骨釘 3（F.4120、N.3030、N.3480；歯科 1、整形外科 2）、矯正 15（13＋2 廃止、歯科 4：F.0002、F.3750、F.5470、F.5500）、根管 3、F.3890 Endodontic stabilizing splint 等級 2｜caveat: 検索なしは台湾での不存在・違法を意味しない。用途説明は適応判断でない。
• F7｜confidence: verified｜basis: official_statement（台北市歯科料金表 1090117 認可版、2026-08-06 curl HTTP 200、411,466 bytes、SHA256 33588b87…f98183、pdftotext -layout 照合）｜period: 認可日 109-01-17、認可番号 北市衛醫字第 1093010058 號｜geo: TW｜span（項次 2-48 鑄造牙柱心，單位每支，公告內容）:「1.本項費用含臨床操作及調整。2.不含診療費用。3.本項費用包含牙體技術師/士費用。4.依鑄造使用金屬不同而有所差異。」｜span（項次 2-49 現成牙柱心，單位每支，公告內容）:「1.本項費用含臨床操作及調整。2.不含診療費用。3.本項費用不包含牙體技術師/士費用。4.依現成牙柱心材質不同而有所差異。」｜span（附註三）:「本表所列項目日後納為衛福部中央健保署醫療服務支付項目後，依「臺北市醫療機構醫療費用收費標準核定原則」規定辦理」｜實測紀錄（全文檢索）: 全文不含「牙釘」二字；「釘」字共 4 處，其中「骨釘」2 處均位於口腔顎面外科段落（正顎手術系列項次之公告內容，以及項次 3-15「顎顏面區域骨釘、骨板二次處置或移除」），齒顎矯正科段落（項次 3-50 至 3-81，編號連續無缺號，共 32 項）無矯正支抗螺釘之專屬項次；缺席檢索另以「錨」「螺釘」「小螺」「微小」「迷你」「植釘」「釘入」「支抗」「微植體」與英文 anchor／screw／TAD 逐一比對全文，皆 0 命中｜caveat: 単一都市の文書で全国一律でない。価格欄の数値は引用しない。未収録は給付判定でない。
• F8｜confidence: verified｜basis: official_statement（F7 と同じ PDF）｜period: F7 と同じ｜geo: TW｜span（項次 3-26 人工植牙種植手術費（一般），單位每顆牙，公告內容）:「人工牙根植入技術費，不包含人工牙根材料費。」｜span（項次 3-40 暫時性植體手術費，單位每顆牙，公告內容）:「基於維持美觀或咬合所需之暫時性植體置入及移除手術費，不包含暫時修復體與暫時性植體材料費。」｜caveat: 3-40 は補綴目的で矯正支抗ではない。
• F9｜confidence: verified｜basis: official_statement（MeSH Bone Screws、UID 68001863、2026-08-06 efetch db=mesh）｜period: Year introduced: 1974(1971)｜geo: universal｜span: “Specialized devices used in ORTHOPEDIC SURGERY to repair bone fractures.”｜caveat: 整形外科の骨折固定であり矯正支抗の主題語ではない。
• F10｜confidence: verified｜basis: peer_reviewed（PMID 40216072）｜period: searched to 2024-10、13 randomized clinical trials、2026-08-06 efetch 逐字・pubtype no Retracted Publication｜geo: universal｜span:「Electronic database searches were conducted in MEDLINE/PubMed, Embase, Scopus, and Web of Science up to October 2024」｜span:「Overall, restorations with posts showed significantly lower failure rates compared to those without posts (P = .001; Risk Ratio [RR]: 0.61). Subgroup analysis demonstrated favorable outcomes for post-use in indirect restorations (P < .001; RR: 0.44).」｜span:「Further analysis revealed significant benefits only for prefabricated fiber posts (P < .001; RR: 0.54) and customizable fiberglass posts (P = .001; RR: 0.66). In contrast, cast post and core (P = .66; RR: 0.84) and prefabricated metallic posts (P = .67; RR: 1.19), showed no significant difference compared to restorations without posts.」｜span:「The overall certainty of the evidence was classified as low due to the risk of bias, indirectness, and imprecision.」｜caveat: 直接修復 RR 1.10（P = .74）は非有意。確実性低。
• F11｜confidence: verified｜basis: peer_reviewed（PMID 39231718）｜period: no time limit; 57 articles, 17 clinical studies, 7,278 patients, 7,330 ETT; 2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「17 clinical studies (11 prospective and 6 retrospective studies) were found to be suitable for quantitative analysis. These studies included 7,278 patients (7,330 ETT)」｜span:「There was a statistically significant difference in survival rate between ETT with or without posts (P < 0.001).」｜span:「As compared with teeth with no posts, post placement on ETT may improve clinical performance and survival probability of endodontically treated teeth.」｜caveat: `may improve` を確定表現にしない。
• F12｜confidence: verified｜basis: peer_reviewed（PMID 37827970）｜period: searched to 2022-11、25 articles、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「Fiber posts (RR=0.15 [95% CI: 0.06, 0.33]) significantly prevented tooth fracture as compared with no posts.」｜span:「Metal posts (RR=0.24 [95% CI: 0.12, 0.46]) ranked higher than fiber posts (RR=0.39 [95% CI: 0.27, 0.56]) in the outcome of debonding.」｜span:「Prefabricated glass fiber posts (RR=0.40 [95% CI: 0.20, 0.81]) had statistically significant differences in the outcome of secondary caries.」｜span:「The GRADE approach determined a moderate level of certainty of evidence.」｜caveat: 脱離では金属 RR 0.24（95% CI 0.12, 0.46）、ファイバー RR 0.39（95% CI 0.27, 0.56）。SUCRA は相対順位で、破折・脱離・二次う蝕を合算・減算しない。
• F13｜confidence: verified｜basis: peer_reviewed（PMID 35430048）｜period: published online 2022, print 2024; 7 trials, at least 2 years; 2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「Meta-analyses revealed an overall survival rate of 92.8% for endodontically treated teeth restored with glass-fiber-reinforced posts compared with 78.1% of those restored with metal posts. No statistically significant difference (P>.05) was found in the survival, success, or failure rates.」｜span:「Both are reliable materials when a significant amount of coronal tooth structure is missing and treatment with a post is indicated.」｜caveat: 二数値は未達有意差と同文で、減算しない。
• F14｜confidence: verified｜basis: peer_reviewed（PMID 30600326）｜period: searched to 2018-01、4 trials、3 to 7 years、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「Fiber posts presented significantly higher survival rates than did metal posts (RR 0.57, 95% CI: 0.33 to 0.97, P = .04), while no difference was observed in success rates, post debonding rates, or root fracture rates.」｜span:「when used in the restoration of endodontically treated teeth with no more than two coronal walls remaining」｜caveat: 冠部歯壁二面以下に限定。
• F15｜confidence: verified｜basis: peer_reviewed（PMID 41601347）｜period: PRISMA 2020、33 studies (6 clinical, 18 in vitro, 9 finite-element)、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「To systematically review and meta-analyze clinical, in vitro, and finite-element studies assessing how ferrule height, width, and circumferential extent influence fracture resistance and survival of endodontically treated teeth.」｜span:「Thirty-three primary studies (6 clinical, 18 in vitro, 9 finite-element) were included. Ferrule height ≥ 2 mm significantly improved fracture resistance (MD +165 N; 95% CI: 110-215). Ferrule presence increased clinical survival (RR 1.34; 95% CI: 1.12-1.59).」｜span:「No restorative strategy matched the biomechanical reinforcement provided by a natural dentin ferrule.」｜span:「These findings should be interpreted within the context of variation in study designs and reporting quality.」｜caveat: 著者は ferrule 高さ 1.5–2.0 mm、象牙質厚さ ≥ 1 mm と良好な力学・臨床結果の関連も記す。+165 N は力学結果で臨床効果でない。ferrule と furcation は別概念。
• F16｜confidence: verified｜basis: peer_reviewed（PMID 38216376）｜period: 8 studies, at least 6 months、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span: “Direct analysis of success rates (2 studies, 123 teeth) showed a significant increase in success when a uniform circumferential ferrule was present (RR=1.28, 95% CI: 1.06, 1.54, P<.05). However, indirect analysis of survival and success rates (8 studies, 407 teeth) indicated no significant differences in outcomes between the ferrule and no ferrule groups (P>.05).”｜caveat: 両解析を併記する。
• F17｜confidence: verified｜basis: peer_reviewed（PMID 30617032）｜period: 6 studies、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「The risk ratio for anterior versus posterior teeth was 1.06 (95% confidence interval [CI], 0.69-1.64; P=.79). The risk ratio for incisors versus canines was 3.08 (95% CI, 0.56-17.04; P=.20) and that for premolars versus molars was 0.45 (95% CI, 0.12-1.74; P=.25). The risk ratio for prefabricated glass fiber posts on anterior versus posterior teeth was 1.13 (95% CI, 0.61-2.09; P=.70) and that for metal posts was 1.10 (95% CI, 0.64-1.91; P=.72).」｜caveat: 切歯対犬歯 3.08（95% CI 0.56–17.04、P=.20）、小臼歯対大臼歯 0.45（95% CI 0.12–1.74、P=.25）、既製グラスファイバー 1.13（95% CI 0.61–2.09、P=.70）、金属 1.10（95% CI 0.64–1.91、P=.72）。全区間が 1 をまたぐ。
• F18｜confidence: verified｜basis: peer_reviewed（PMID 39377777）｜period: searched MedLine/Cochrane/Web of Science/EMBASE and grey literature、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「The search terms used were "Orthodontic Anchorage Procedures," "mini-implant," "Mini Dental Implant," "Miniscrew," and "microimplant."」｜span:「Miniscrews are small-sized intraoral devices used for temporary skeletal anchorage and are easy to place and remove.」｜span:「Patients tend to overestimate the pain inherent in this procedure. The insertion of micro implants is more accepted than the tooth extraction procedure, with less postoperative pain reported.」｜span:「The most frequent outcome reported is pain and discomfort, which varies depending on its location (less with mini interradicular screws than with extra-alveolar screws). Most patients are satisfied or very satisfied with this application.」｜caveat: 非構造化の叙述で疼痛統合値なし。無痛保証にしない。
• F19｜confidence: verified｜basis: law（台湾全民健康保険法第 51 条）＋official_statement｜period: current text; site checked 2026-08-05｜geo: TW｜span（第 51 條第 3 款）:「藥癮治療、美容外科手術、非外傷治療性齒列矯正、預防性手術、人工協助生殖技術、變性手術。」｜span（第 51 條第 11 款）:「義齒、義眼、眼鏡、助聽器、輪椅、拐杖及其他非具積極治療性之裝具。」｜實測紀錄（比價網）: 兩查詢軌之品項分類皆不含牙科，頁面可見文字不含「牙」字｜caveat: 個別給付を判断しない。
• F20｜confidence: verified｜basis: peer_reviewed（PMID 40919671）｜period: searched to 2024-10; 11 meta-analyses, 50 data sets、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「Eleven meta-analyses comprising 50 data sets were included. The results indicated that mini-screws significantly increased intermolar width (ES: 2.61 mm, 95% CI: 0.29-4.92, p = 0.02) and skeletal width (ES: 3.33 mm, 95% CI: 1.37-5.29, p = 0.001). However, no significant impact was found on interpremolar width or alveolar width before and after MARPE. Micro-implants significantly reduced molar movement (ES: -1.13 mm, 95% CI: -1.99 to -0.26, p = 0.01).」｜span（方法：CI 與異質性是兩種不同的量）:「a random-effects model was used to calculate effect sizes (ESs) and 95% confidence intervals (CIs). Heterogeneity was evaluated using the I² statistic and Cochrane's Q-test, with subgroup and sensitivity analyses conducted to identify sources of heterogeneity.」｜span（異質性結果）:「Substantial heterogeneity was noted across several outcomes (I² > 50%), which persisted despite subgroup analyses.」｜caveat: 95% CI は個人差でない。
• F21｜confidence: verified｜basis: peer_reviewed（PMID 32473811）｜period: PROSPERO CRD42018094463; 17 reviews、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「Most of the studies reported high success rates (≥90%), and just one systematic review indicated a low rate of success (≤56%) for the mini-screws.」｜span:「The results should be analysed cautiously because of several research gaps related to the methodological quality and the high heterogeneity of the original studies」｜caveat: 異なるレビュー値で区間にしない。
• F22｜confidence: verified｜basis: peer_reviewed（PMID 30246217）｜period: searched to 2017-10; 61 studies、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「Palatal sites had failure rates of 1.3% (95% CI 0.3-6), 4.8% (95% CI 1.6-13.4) and 5.5% (95% CI 2.8-10.7) for the midpalatal, paramedian and parapalatal insertion sites, respectively. The failure rates for the maxillary buccal sites were 9.2% (95% CI 7.4-11.4), 9.7% (95% CI 5.1-17.6) and 16.4% (95% CI 4.9-42.5) for the interradicular miniscrews inserted between maxillary first molars and second premolars and between maxillary canines and lateral incisors, and those inserted in the zygomatic buttress respectively.」｜span:「The failure rates for the mandibular buccal insertion sites were 13.5% (95% CI 7.3-23.6) and 9.9% (95% CI 4.9-19.1) for the interradicular miniscrews inserted between mandibular first molars and second premolars and between mandibular canines and first premolars, respectively. The risk of failure increased when the miniscrews contacted the roots, with a risk ratio of 8.7 (95% CI 5.1-14.7).」｜span:「Very low to low quality of evidence suggests that miniscrews inserted in midpalatal locations have a failure rate of 1.3% and those inserted in the zygomatic buttress have a failure rate of 16.4%. Moderate quality of evidence indicates that root contact significantly contributes to the failure of interradicular miniscrews placed between the first molars and second premolars.」｜caveat: 接触は隣在歯根、furcation ではない。2019 to 2026 の同題検索で部位別統合の更新版なし。
• F23｜confidence: verified｜basis: peer_reviewed（PMID 33277824）｜period: searched to 2020-06; 5734, 7 studies、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span:「The overall mean success rate weighted by the number of miniscrews was 87.21% (89.87% in the maxilla and 79.24% in the mandible). There was a significantly higher success rate for miniscrews placed in the maxilla compared with those in the mandible (P < .05).」｜span:「Because of the small number and clinical heterogeneity of the included studies, the results should be interpreted with caution.」｜caveat: 個人の成功確率でない。
• F24｜confidence: verified｜basis: peer_reviewed（PMID 34676428）｜period: 7 studies, GRADE、2026-08-06 efetch、pubtype no Retracted｜geo: universal｜span: “When comparing the risk of failure between mini-implants and mini-plates, the risk values approached the threshold of statistical significance (p = 0.07) (RR = 1.83; 95% CI = 0.96-3.50; I2 = 69%), showing significance after sensitivity analysis (p < 0.05) and a greater risk for mini-implants. Mandible installation presented a higher risk of failure (RR = 1.85; 95% CI = 1.17-2.91).”｜caveat: RR 1.83 は 1 をまたぎ、感度分析後のみ有意。
• F25［構造的整理］｜三分流、集団と個人の区別、気道赤旗を先に置く二層構成、5 項目と 8 問は F3 から F24 による編集上の受診コミュニケーション構造｜confidence: n/a｜basis: editorial_framework｜period: 2026-08-06｜geo: universal｜caveat: 診断・臨床意思決定ではない。気道確認→診療所連絡は保守的指示で文献基準ではない。時間閾値を加えない。
• F26［構造的整理］｜post and core＝支台築造、ferrule は保持、miniscrew 等＝矯正用ミニスクリュー、部位名は原語保持。台北市項目との英語文献語対応は編集上の対訳で、製作過程・適合・公式英訳を料金表は示さない｜confidence: n/a｜basis: editorial_framework｜period: 2026-08-06｜geo: universal｜caveat: 編集判断で公式訳でない。
• F27｜GSC 照合：`` の「牙釘」は 765 行、impressions 4,094、clicks 27；2026-08-06 に awk で再実行しキュー表と一致。別検索語にも三義が共存｜confidence: verified｜basis: internal_dataset｜period: GSC retention window (from 2025-03-22)｜geo: TW｜caveat: asset-level、非重複化流量でない。公開変換で全条を除外。

出典一覧

取得日はすべて 2026-08-06。PubMed は E-utilities efetch（rettype=abstract）で逐字照合し、14 件すべて pubtype に Retracted Publication なし、WITHDRAWN 表題なしを確認。MeSH は efetch db=mesh、法規は curl HTTP 200、台北市 PDF は pdftotext -layout、分類 DB は ego-browser 実査。

• S1–S5 台湾医療法第 21・22・81・87 条、台湾全民健康保険法第 51 条。全国法規資料庫
• S6–S9 台北市衛生局料金表、PDF、医療機器分類、健保医材比価網。台北市衛生局 分類DB 健保
• S10–S13 NLM MeSH: Post and Core Technique (68011176), Orthodontic Anchorage Procedures (68052280), Dental Implants (68015921), Bone Screws (68001863).
• S14–S27 PMID 40216072, 39231718, 37827970, 35430048, 30600326, 41601347, 38216376, 30617032, 39377777, 40919671, 32473811, 30246217, 33277824, 34676428. PubMed

内部引用チェーン

• 根管治療とは？（KM-DENTAL-18）：根管治療の過程。
• 歯冠とは？（KM-DENTAL-23）：歯冠の種類・材料・適応。
• 歯冠長延長術とは？（KM-DENTAL-17）：残存歯質不足時の別処置。
• 歯根破折では？（KM-DENTAL-C02）：処置。
• 歯冠／装置が外れたら？（KM-DENTAL-38）：脱落時の詳細。
• 人工歯根植立の流れ（KM-DENTAL-25）。
• マウスピース矯正の費用（KM-DENTAL-C03）。