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根管治疗（抽神经）是什么？要跑几次？｜證據鏈

km 編輯部2026-08-13阅读约 46 分钟
#證據鏈#牙醫KM#台灣#根管

本頁是〈根管治疗（抽神经）是什么？要跑几次？〉的事實單元帳：每一條主張對應的來源、證據等級、地域與期間、原文引句與限制，逐條攤開。

根管治疗（抽神经）是什么？要跑几次？｜證據鏈

F-Units（事实单元账）

  • F1｜选题依据＝14 个诊所站 GSC 全量对账；“根管治疗”“牙齿根管治疗”“根管”“根管治疗是什么”“根管治疗要几次”5 词项合计曝光 164,202、跨 2 站。｜来源 #23｜confidence=high｜basis=internal_dataset｜period=GSC 保留窗（2025-03-22 起）｜geo: TW｜caveat：曝光为属性级数字、非去重流量；内部数据，非医学宣称，不进发布可见层。
  • F2｜根管治疗主要适应症为不可逆性牙髓炎与牙髓坏死；成因包括龋齿进展、牙冠部裂纹或断裂、牙齿外伤。｜来源 #1｜confidence=high｜basis=peer_reviewed（Cochrane 系统性回顾背景段）｜period=2022（检索截止 2022-04-25）｜geo: universal｜caveat：适应症的一般陈述，非个案诊断准则。
  • F3｜牙髓治疗定义＝移除牙髓并以根管充填物取代。｜来源 #12｜confidence=high｜basis=peer_reviewed（Cochrane 系统性回顾背景段）｜period=2015｜geo: universal｜caveat：定义性陈述。
  • F4｜成功判准：无症状（疼痛）及临床体征（肿胀、瘘管），影像上无牙周组织受累证据（牙周韧带正常）。｜来源 #1｜confidence=high｜basis=peer_reviewed｜period=2022｜geo: universal｜caveat：本卡据此转述治疗后牙仍与牙周韧带、牙槽骨相连；非牙髓生理学专篇。
  • F5｜单次就诊＝器械预备与冲洗后直接封填；多次就诊＝两次以上完成，末次封填。｜来源 #1｜confidence=high｜basis=peer_reviewed｜period=2022｜geo: universal｜caveat：定义性陈述，非流程操作指引。
  • F6｜当代照护标准含橡皮障隔离及次氯酸钠冲洗；2022 年版回顾因此排除 5 篇旧研究。｜来源 #1｜confidence=high｜basis=peer_reviewed｜period=2022｜geo: universal｜caveat：回顾作者对“当代照护标准”的界定，非各国法规要求。
  • F7｜2022 年 Cochrane 回顾纳入 47 篇、5805 位受试者、5693 颗牙；无证据显示单次或多次较有效；影像学失败风险比 0.93（95% CI 0.81 至 1.07；13 篇、1505 颗牙；中等确定性）。｜来源 #1｜confidence=high｜basis=peer_reviewed（Cochrane SR/MA，现行版）｜period=2022｜geo: universal｜caveat：影像学追踪下限为治疗后一年；偏倚风险低 10／高 17／不明 20。
  • F8｜一周内报告疼痛者单次组较高：风险比 1.55（95% CI 1.14 至 2.09；I²=18%；5 篇、638 颗牙；中等确定性）；活髓牙亚组为 2.16（2 篇、316 颗牙）。｜来源 #1｜confidence=moderate｜basis=peer_reviewed｜period=2022｜geo: universal｜caveat：仅 5 篇、638 颗牙；与 F10 方向不完全一致，故并陈。
  • F9｜现行证据为 2022 年 12 月 Cochrane 回顾（pub4），取代 2016 年版（pub3）；2016 PubMed 记录标示已由 2022 年版更新。｜来源 #1、#2｜confidence=high｜basis=peer_reviewed（PubMed 书目版本沿革）｜period=2026-08-06 检索｜geo: universal｜caveat：版本时效查核，非医学宣称；2026-08-06 PubMed 检索未见 pub5。
  • F10｜2026 年伞状回顾（检索至 2025-12）纳入 12 篇：较高确定性回顾未显示两种就诊在术后疼痛有一致或临床重要差异；策略可依复杂度、感染控制、偏好及时程。｜来源 #3｜confidence=moderate｜basis=peer_reviewed（umbrella review）｜period=2026｜geo: universal｜caveat：受原始研究重叠及结果定义不一致限制，作者已自述。
  • F11｜2026 随机试验：坏死牙髓合并根尖病灶 59 人随机（单次 28／两次 31）；两次组氢氧化钙 10 至 14 天；平均追踪 2.8 年、42 人完成；愈合无统计显著差异，未证明优越、非劣或等效。｜来源 #4｜confidence=low｜basis=peer_reviewed（单一 RCT，小样本）｜period=2026｜geo: universal｜caveat：不得以此推论两次较佳；作者未证明优越／非劣／等效。
  • F12｜疼痛盛行率：治疗前 81%（SD 28）、24 小时 40%（SD 24）、一周 11%（SD 14）；强度（0 至 100 分）54（SD 24）、24（SD 12）、5（SD 5）；原文另记“Supplemental injections were frequently required (60 [24%])”。｜来源 #5｜confidence=moderate｜basis=peer_reviewed（系统性回顾，72 篇统合分析）｜period=2011｜geo: universal｜caveat：括号为标准差非置信区间；补充麻醉以“60 [24%]”标示，故正文只作质性陈述；均为群体平均，个体差异大。
  • F13｜六个月以上持续性牙痛估计 5.3%（95% CI 3.5% 至 7.2%），I²=80%；前瞻性 7.6%、回溯性 0.9%。｜来源 #6｜confidence=moderate｜basis=peer_reviewed（SR/MA，26 篇、2996 颗牙追踪）｜period=2010｜geo: universal｜caveat：异质性高；2026-08-06 检索未见更新统合分析。
  • F14｜六个月以上、无牙齿病理证据的非牙源性疼痛为 3.4%（95% CI 1.4% 至 5.5%）；9 篇中 56%（44/78）判为非牙源性。｜来源 #7｜confidence=moderate｜basis=peer_reviewed（SR/MA，10 篇）｜period=2010｜geo: universal｜caveat：仅追踪 1125 颗牙；用于持续痛应重新诊断，非个人风险估计。
  • F15｜台湾全民健保数据库：2005 至 2011 年初次治疗 517,234 颗牙，29,219 颗拔除，存留率 94.4%；平均 3.43 年，橡皮障 90.3%、未用 88.8%；调整后拔牙风险比 0.81（95% CI 0.79 至 0.84）。｜来源 #8｜confidence=moderate｜basis=peer_reviewed（全国回溯队列）｜period=2014（数据 2005-2011）｜geo: TW｜caveat：申报数据库无法涵盖自费和临床细节；存留＝未拔除。
  • F16｜系统性回顾：存留率 2 至 3 年 86%（95% CI 75% 至 98%）、4 至 5 年 93%（92% 至 94%）、8 至 10 年 87%（82% 至 92%）；四项较高存留相关条件首位为治疗后牙冠修复。｜来源 #9｜confidence=moderate｜basis=peer_reviewed（系统性回顾，14 篇，多回溯性）｜period=2010（纳入至 2007）｜geo: universal｜caveat：作者明述预后因子证据薄弱、异质性显著；2026-08-06 未见替代更新版。
  • F17｜前瞻性研究：初次完全根尖愈合 83%（95% CI 81% 至 85%）、再治疗 80%（78% 至 82%）；满意牙冠部修复改善愈合；穿孔及充填物挤出不利。｜来源 #10｜confidence=moderate｜basis=peer_reviewed（前瞻性队列，追踪 2 至 4 年）｜period=2011｜geo: universal｜caveat：由教学医院牙髓病学研究生治疗，未必同一般执业。
  • F18｜同研究存留分析：四年累积存留初次 95.4%、再治疗 95.3%；糖尿病史和全身性类固醇治疗为显著病人因子；修复因子包括铸造修复体相对暂时充填。｜来源 #11｜confidence=moderate｜basis=peer_reviewed（前瞻性队列）｜period=2011｜geo: universal｜caveat：人群同 F17；存留与愈合定义不同，不可互换。
  • F19｜Cochrane 回顾：牙冠与常规充填修复证据不足（仅 1 篇、117 人、小臼齿、三年），决定仍依个案条件与偏好。｜来源 #12｜confidence=high（对“证据不足”）｜basis=peer_reviewed（Cochrane SR）｜period=2015（现行版；2026-08-06 未见更新）｜geo: universal｜caveat：试验高偏倚风险、证据极低。
  • F20｜2026 系统性回顾及统合分析（33 篇：临床 6、体外 18、有限元 9）：环箍与较高临床存留相关，风险比 1.34（95% CI 1.12 至 1.59）；高度 1.5 至 2.0 mm、牙本质厚度至少 1 mm 与较好结果相关。｜来源 #13｜confidence=moderate｜basis=peer_reviewed（SR/MA）｜period=2026｜geo: universal｜caveat：设计混合，多体外及有限元；须结合设计和报告质量差异解读。
  • F21｜根管治疗牙较有活髓牙易断裂；归因于齿质流失与开髓、预备冲洗、封填、桩道预备、桩选择、牙冠修复引入应力。｜来源 #14｜confidence=moderate｜basis=peer_reviewed（综述）｜period=2010｜geo: universal｜caveat：非统合分析，未给量化风险。
  • F22｜网络统合分析（25 篇）：有适应症时纤维桩核相较不放桩核可降断裂风险；中等确定性。｜来源 #15｜confidence=moderate｜basis=peer_reviewed（网络统合分析）｜period=2025｜geo: universal｜caveat：仅引用“有适应症时”的条件式结论，非常规建议；作者建议更长追踪试验。
  • F23｜显微 CT 检视下颌第一磨牙根管解剖的系统性回顾（30 篇）显示高度解剖变异。｜来源 #16｜confidence=moderate｜basis=peer_reviewed（系统性回顾，离体标本）｜period=2023｜geo: universal｜caveat：多数整体偏倚风险中等；离体微断层不等同临床疗程时间。
  • F24｜台湾《医疗法》第 81 条规定机构诊治时，应向病人或法定代理人、配偶、亲属、关系人告知病情、方针、处置、用药、预后和可能不良反应。｜来源 #17｜confidence=high｜basis=law｜period=现行条文（2026-08-06 浏览器实测、逐字对得上）｜geo: TW｜caveat：条文转述，非法律意见。
  • F25｜台湾《全民健康保险法》第 41 条：支付项目和标准由保险人及相关机关、专家学者、被保险人、雇主、医疗服务提供者代表共同拟订，报主管机关核定发布。｜来源 #18｜confidence=high｜basis=law｜period=现行条文（2026-08-06 实测逐字）｜geo: TW｜caveat：仅指向健保署现行公告，不作个案给付判定。
  • F26｜台湾《全民健康保险法》第 51 条列举不列给付范围项目，含义齿、义眼、眼镜、助听器、轮椅、拐杖及其他非积极治疗性装具。｜来源 #19｜confidence=high｜basis=law｜period=现行条文（2026-08-06 实测逐字）｜geo: TW｜caveat：同 #9／#17 卡锚 C2；列举不等于个案结论，不作涵摄判断。
  • F27［部分待验］｜健保署有“全民健康保险医疗服务给付项目及支付标准”公告页，提供现行档案下载（列 115.07.01 生效压缩档，并载明自 114.08.11 起可至政府开放数据平台下载）。｜来源 #20｜confidence=high（页面及清单）｜basis=official_statement｜period=2026-08-06 ego-browser 实测可及、标题和清单逐字读取｜geo: TW｜caveat：未逐项比对牙科，本题项目给付状态仍待验；不作判定。
  • F28｜自费收费项目依地方卫生主管机关核定／备案标准；已验例证为开放数据集 121913“臺北市醫療收費標準”，提供机关台北市政府卫生局。｜来源 #21｜confidence=high｜basis=official_statement｜period=2026-08-06 实测可及、标题和机关逐字对得上｜geo: TW｜caveat：同 #3／#17 卡锚 C3；其他县市放量前逐项补验。
  • F29｜健保署“醫材比價網”不含牙科（自付差额 12 类、医材收费 8 类皆无），牙科费用无法由该网查证。｜来源 #22｜confidence=high｜basis=official_statement（OP 2026-08-05 以 ego-browser 逐项读取）｜period=2026-08-05｜geo: TW｜caveat：同 VERIFIED-FACTS；为防错误指引的负面发现。
  • F30［待验］｜商业保险是否理赔相关项目，依保单条款而定。｜来源类别：保单条款（未取得公开可引样本）｜confidence=low｜basis=待补｜geo: TW｜caveat：本站不提供理赔见解，只陈述“依保单条款而定”。
  • F31［结构性整理］｜“名词对照→适应症概念→流程→次数→术后→修复”及不提供自我诊断对照表，是本站编辑结构，非事实宣称。｜confidence=n/a｜basis=editorial｜geo: TW｜caveat：不得标待验，避免制造假查证工作。
  • F32［结构性整理］｜报价单“诊断影像／根管本身／期间临时充填／治疗后正式修复”四段，是本站阅读框架，非机构收费分类，也不含金额。｜confidence=n/a｜basis=editorial｜geo: TW｜caveat：同上，不得标待验。
  • F33｜台湾《医疗法》第 21 条收费标准由直辖市、县（市）主管机关核定；第 22 条要求收据列项目金额，且不得违反标准、超额或擅立项目收费。｜来源 #17c、#17d｜confidence=high｜basis=law｜period=现行条文（2026-08-06 浏览器实测、逐字对得上）｜geo: TW｜caveat：条文转述，非法律意见；不列金额。
  • F32b｜台湾《医疗法》第 87 条第 2 项：医学新知或研究报告、病人卫生教育、学术刊物未涉及招徕医疗业务者，不视为医疗广告。｜来源 #17b｜confidence=high｜basis=law｜period=现行条文（2026-08-06 实测逐字）｜geo: TW｜caveat：本卡定位依据。

来源清单

  1. Mergoni G, Ganim M, Lodi G, Figini L, Gagliani M, Manfredi M. Single versus multiple visits for endodontic treatment of permanent teeth. Cochrane Database Syst Rev. 2022 Dec 13;12(12):CD005296. PMID 36512807. https://pubmed.ncbi.nlm.nih.gov/36512807/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「The main indications for RoCT are irreversible pulpitis and necrosis of the dental pulp caused by carious processes, coronal crack or fracture, or dental trauma」「Successful RoCT is characterised by an absence of symptoms (i.e. pain) and clinical signs (i.e. swelling and sinus tract) in teeth without radiographic evidence of periodontal involvement (i.e. normal periodontal ligament)」「RoCT can be carried out with a single-visit approach, which involves root canal system obturation (filling and sealing) directly after instrumentation and irrigation, or with a multiple-visits approach, in which the treatment is completed in two or more sessions and obturation is performed in the last session」「We excluded five studies that were included in the previous version of the review because they did not meet the current standard of care (i.e. rubber dam isolation and irrigation with sodium hypochlorite)」「We included 47 studies with 5805 participants and 5693 teeth analysed」「We found no evidence of a difference between single-visit and multiple-visit treatment in terms of radiological failure (RR 0.93, 95% CI 0.81 to 1.07; I2 = 0%; 13 studies, 1505 teeth; moderate-certainty evidence)」「We found evidence of a higher proportion of participants reporting pain within one week in single-visit groups compared to multiple visit groups (RR 1.55, 95% CI 1.14 to 2.09; I2 = 18%; 5 studies, 638 teeth; moderate-certainty evidence)」「which was higher in the single-visit groups for vital teeth (RR 2.16, 95% CI 1.39 to 3.36; I2 = 0%; 2 studies, 316 teeth)」「there is currently no evidence to suggest that one treatment regimen (single-visit or multiple-visit RoCT) is more effective than the other」
  2. Manfredi M, Figini L, Gagliani M, Lodi G. Single versus multiple visits for endodontic treatment of permanent teeth. Cochrane Database Syst Rev. 2016 Dec 1;12(12):CD005296. PMID 27905673. https://pubmed.ncbi.nlm.nih.gov/27905673/（取用 2026-08-06）。已被 2022 年版取代，本卡僅用於版本沿革查核，不引用其數字。逐字 span：「There is no evidence to suggest that one treatment regimen (single-visit or multiple-visit root canal treatment) is better than the other」
  3. Gupta R, Abraham D, Ahmad L, Puri A. Single-visit versus multiple-visit root canal therapy: Post-endodontic pain outcomes from an umbrella review. J Dent. 2026 Jun;169:106637. PMID 41856391. https://pubmed.ncbi.nlm.nih.gov/41856391/（取用 2026-08-06）。逐字 span：「Twelve systematic reviews met the inclusion criteria」「the higher-confidence reviews did not show a consistent or clinically important difference in post-operative pain between single-visit and multiple-visit treatment」「from inception to December 2025」「the choice of visit strategy can be guided by other factors such as case complexity, infection control, patient preference, and logistical considerations rather than the expectation of meaningful differences in post-operative pain」
  4. Sabeti M, Kim H, Abbaker S, Karimpourtalebi N, Azarpazhooh A. Healing Outcomes of Single-Visit and Two-Visit Endodontic Treatment for Necrotic Teeth with Apical Periodontitis: A Randomized Clinical Trial. J Endod. 2026 Jul 29 (online ahead of print). PMID 42526597. https://pubmed.ncbi.nlm.nih.gov/42526597/（取用 2026-08-06）。逐字 span：「Fifty-nine patients were randomized to single-visit (n= 28) or two-visit (n= 31) treatment, with calcium hydroxide placed for 10-14 days in the two-visit group」「At a mean follow-up of 2.8 years, 42 patients completed the study」「these findings do not demonstrate superiority, noninferiority, or equivalence」
  5. Pak JG, White SN. Pain prevalence and severity before, during, and after root canal treatment: a systematic review. J Endod. 2011 Apr;37(4):429-38. PMID 21419285. https://pubmed.ncbi.nlm.nih.gov/21419285/（取用 2026-08-06）。逐字 span：「Mean pretreatment, 24-hour posttreatment, and 1-week posttreatment pain prevalences with associated standard deviations were 81 (28%), 40 (24%), and 11 (14%), respectively」「Pretreatment, 24-hour posttreatment, and 1-week posttreatment pain severities, on a 100-point scale, were 54 (24%), 24 (12%), and 5 (5%), respectively」「Supplemental injections were frequently required (60 [24%])」
  6. Nixdorf DR, Moana-Filho EJ, Law AS, McGuire LA, Hodges JS, John MT. Frequency of persistent tooth pain after root canal therapy: a systematic review and meta-analysis. J Endod. 2010 Feb;36(2):224-30. PMID 20113779. https://pubmed.ncbi.nlm.nih.gov/20113779/（取用 2026-08-06）。逐字 span：「We identified 168 teeth with pain and derived a frequency of 5.3% (95% confidence interval, 3.5%-7.2%, p < 0.001) for persistent all-cause tooth pain」「In subgroup analysis, prospective studies had a higher pain frequency (7.6%) than retrospectives studies did (0.9%)」
  7. Nixdorf DR, Moana-Filho EJ, Law AS, McGuire LA, Hodges JS, John MT. Frequency of nonodontogenic pain after endodontic therapy: a systematic review and meta-analysis. J Endod. 2010 Sep;36(9):1494-8. PMID 20728716. https://pubmed.ncbi.nlm.nih.gov/20728716/（取用 2026-08-06）。逐字 span：「We identified 48 teeth with nonodontogenic pain and estimated a 3.4% (95% confidence interval, 1.4%-5.5%) frequency of occurrence」「56% (44/78) of all cases were thought to have a nonodontogenic cause」
  8. Lin PY, Huang SH, Chang HJ, Chi LY. The effect of rubber dam usage on the survival rate of teeth receiving initial root canal treatment: a nationwide population-based study. J Endod. 2014 Nov;40(11):1733-7. PMID 25175849. https://pubmed.ncbi.nlm.nih.gov/25175849/（取用 2026-08-06）。逐字 span：「Of the 517,234 teeth, 29,219 were extracted, yielding a survival rate of 94.4%」「The survival probability of initial RCT using rubber dams after 3.43 years (the mean observed time) was 90.3%, which was significantly greater than the 88.8% observed without the use of rubber dams」「the tooth extraction hazard ratio for the RCT with rubber dams was significantly lower than that observed for RCT without rubber dams (hazard ratio = 0.81; 95% confidence interval, 0.79-0.84)」
  9. Ng YL, Mann V, Gulabivala K. Tooth survival following non-surgical root canal treatment: a systematic review of the literature. Int Endod J. 2010 Mar;43(3):171-89. PMID 20158529. https://pubmed.ncbi.nlm.nih.gov/20158529/（取用 2026-08-06）。逐字 span：「The pooled percentages of reported tooth survival over 2-3, 4-5 and 8-10 years following RCTx were 86% (95% CI: 75%, 98%), 93% (95% CI: 92%, 94%) and 87% (95% CI: 82%, 92%), respectively」「Evidence for the effect of prognostic factors on tooth survival was weak」「the conditions increasing observed proportion of survival were as follows: (i) a crown restoration after RCTx」
  10. Ng YL, Mann V, Gulabivala K. A prospective study of the factors affecting outcomes of nonsurgical root canal treatment: part 1: periapical health. Int Endod J. 2011 Jul;44(7):583-609. PMID 21366626. https://pubmed.ncbi.nlm.nih.gov/21366626/（取用 2026-08-06）。逐字 span：「proportion of roots with complete periapical healing after 1°RCTx (83%; 95% CI: 81%, 85%) or 2°RCTx (80%; 95% CI: 78%, 82%) were similar」「presence of a satisfactory coronal restoration」
  11. Ng YL, Mann V, Gulabivala K. A prospective study of the factors affecting outcomes of non-surgical root canal treatment: part 2: tooth survival. Int Endod J. 2011 Jul;44(7):610-25. PMID 21366627. https://pubmed.ncbi.nlm.nih.gov/21366627/（取用 2026-08-06）。逐字 span：「The 4-year cumulative tooth survival following 1°RCTx [95.4% (93.6%, 96.8%)] or 2°RCTx [95.3% (93.6%, 96.5%)] was similar」「Significant patient factors included history of diabetes and systemic steroid therapy」「Significant post-operative restorative factors included presence of cast restoration versus temporary restoration」
  12. Sequeira-Byron P, Fedorowicz Z, Carter B, Nasser M, Alrowaili EF. Single crowns versus conventional fillings for the restoration of root-filled teeth. Cochrane Database Syst Rev. 2015 Sep 25;2015(9):CD009109. PMID 26403154. https://pubmed.ncbi.nlm.nih.gov/26403154/（取用 2026-08-06；2026-08-06 於 PubMed 檢索未見更新版）。逐字 span：「Endodontic treatment involves removal of the dental pulp and its replacement by a root canal filling」「There is insufficient evidence to assess the effects of crowns compared to conventional fillings for the restoration of root-filled teeth」「clinicians should continue to base decisions about how to restore root-filled teeth on their own clinical experience, whilst taking into consideration the individual circumstances and preferences of their patients」
  13. Hajeer O, Hasan A, Kanout C, Morad ML. Ferrule dimensions and restoration outcomes in endodontically treated teeth: A systematic review and meta-analysis. J Prosthodont. 2026 Apr;35(4):450-459. PMID 41601347. https://pubmed.ncbi.nlm.nih.gov/41601347/（取用 2026-08-06）。逐字 span：「Thirty-three primary studies (6 clinical, 18 in vitro, 9 finite-element) were included」「Ferrule presence increased clinical survival (RR 1.34; 95% CI: 1.12-1.59)」「A ferrule height of 1.5-2.0 mm and dentin thickness ≥ 1 mm are associated with improved biomechanical and clinical outcomes」
  14. Tang W, Wu Y, Smales RJ. Identifying and reducing risks for potential fractures in endodontically treated teeth. J Endod. 2010 Apr;36(4):609-17. PMID 20307732. https://pubmed.ncbi.nlm.nih.gov/20307732/（取用 2026-08-06）。逐字 span：「they are generally more susceptible to fracture than teeth with vital pulps」「Postendodontic tooth fractures might occur because of the loss of tooth structure and induced stresses caused by endodontic and restorative procedures such as access cavity preparation, instrumentation and irrigation of the root canal, obturation of the instrumented root canal, post-space preparation, post selection, and coronal restoration」
  15. Giok KC, Veettil SK, Menon RK. Comparative effectiveness of fiber and metal posts in the restoration of endodontically treated teeth: A systematic review with network meta-analysis. J Prosthet Dent. 2025 Sep;134(3):597-615. PMID 37827970. https://pubmed.ncbi.nlm.nih.gov/37827970/（取用 2026-08-06）。逐字 span：「The use of a fiber post when indicated results in reduced risk of tooth fracture as compared with no post」「Twenty-five articles were included in the quantitative analysis」
  16. Al-Rammahi HM, Chai WL, Nabhan MS, Ahmed HMA. Root and canal anatomy of mandibular first molars using micro-computed tomography: a systematic review. BMC Oral Health. 2023 May 29;23(1):339. PMID 37248469. https://pubmed.ncbi.nlm.nih.gov/37248469/（取用 2026-08-06）。逐字 span：「the selected studies showed high anatomical variability in mandibular first molars」「thirty met the inclusion criteria」
  17. 《醫療法》第 81 條，全國法規資料庫。https://law.moj.gov.tw/LawClass/LawSingle.aspx?pcode=L0020021&flno=81（2026-08-06 以 ego-browser 實載，標題「醫療法§81-全國法規資料庫」，條文逐字對得上）

17b. 《醫療法》第 87 條，全國法規資料庫。https://law.moj.gov.tw/LawClass/LawSingle.aspx?pcode=L0020021&flno=87（2026-08-06 以 ego-browser 實載，兩項條文逐字取得） 17c. 《醫療法》第 21 條，全國法規資料庫。https://law.moj.gov.tw/LawClass/LawSingle.aspx?pcode=L0020021&flno=21（2026-08-06 以 ego-browser 實載，條文逐字對得上） 17d. 《醫療法》第 22 條，全國法規資料庫。https://law.moj.gov.tw/LawClass/LawSingle.aspx?pcode=L0020021&flno=22（2026-08-06 以 ego-browser 實載，兩項條文逐字取得）

  1. 《全民健康保險法》第 41 條，全國法規資料庫。https://law.moj.gov.tw/LawClass/LawSingle.aspx?pcode=L0060001&flno=41（2026-08-06 以 ego-browser 實載，條文逐字對得上）
  2. 《全民健康保險法》第 51 條，全國法規資料庫。https://law.moj.gov.tw/LawClass/LawSingle.aspx?pcode=L0060001&flno=51（2026-08-06 以 ego-browser 實載，十二款逐字取得；同 VERIFIED-FACTS 已驗錨）
  3. 衛生福利部中央健康保險署「全民健康保險醫療服務給付項目及支付標準」公告頁。https://www.nhi.gov.tw/ch/lp-3778-1.html（2026-08-06 以 ego-browser 實載，頁面標題與四筆檔案清單逐字讀取；本卡未下載檔案逐項比對）
  4. 政府資料開放平臺，資料集 121913「臺北市醫療收費標準」，提供機關臺北市政府衛生局。https://data.gov.tw/dataset/121913（2026-08-06 以 ego-browser 實載，標題與提供機關逐字對得上）
  5. 衛生福利部中央健康保險署「醫材比價網」不含牙科品項之實測紀錄，見 `km-compliance/VERIFIED-FACTS.md`（OP 2026-08-05 以 ego-browser 逐項讀取兩軌類別下拉選單，頁面全文無「牙」字）
  6. km 牙医线选题底账：`analysis/reports/km-dental-backlog.md` #18 附录（5 词项逐笔、合计 164,202、跨 2 站），资料源＝14 诊所资产 GSC 全量对账。

内部引用链

  • 蛀牙什麼時候需要補、什麼時候已經補不回來（本卡「什麼情況會被建議做根管」的前一段路）：蛀牙了一定要補嗎？補牙怎麼補？（KM-DENTAL-12）
  • 蛀到牙齦下、牙齒露出的高度不夠而做不了牙冠時會被提到的手術，以及費用組成與保險段的同款處理方式：牙冠增長術是什麼？費用、保險、會不會痛（KM-DENTAL-17）（本卡 F26／F28 與該卡 F25／F26 為同源錨）
发布闸门提醒：本卡为 draft。F27（本题各项目之健保给付状态）、F30（商业保险）待验未清前不得标 published；四语（zh-Hans／en／ja）未产前不得进 km_entries。

FAQ

根管治疗到底要跑几次才正常？
没有标准次数；现行 Cochrane 回顾没有证据显示单次或多次其中一种更有效，安排可依复杂度、感染控制、偏好与时程决定 [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].
一次做完会不会比较痛？
单次组一周内报告疼痛比例较高，风险比 1.55；但 2026 年汇总较高确定性回顾未见一致或临床重要差异，证据仍在收敛 [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].
抽神经很痛吗？术后会痛多久？
群体数字为治疗前 81%、24 小时 40%、一周 11%，强度由 54 分到 24 分再到 5 分；六个月持续疼痛约 5.3%，应回诊重新诊断 [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].

来源锚定

引用本文

km 編輯部・《根管治疗（抽神经）是什么？要跑几次？｜證據鏈》・IDAEO 知識庫・2026-08-13・https://km.idaeo.ai/post/reports/dental-root-canal-basics-evidence

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更新 2026-08-13T14:17:35.523Z · server-rendered · four-language · IDAEO 知識庫