暴牙可以矯正嗎？先看你的「暴」是牙齒還是骨頭｜證據鏈

暴牙可以矯正嗎？先看你的「暴」是牙齒還是骨頭｜證據鏈

F-Units（事實單元帳）

• F1｜本題選題依據＝14 診所站 GSC 全量對帳，查詢詞「暴牙矯正」在之合計曝光 305（75 列、點擊 0），2026-08-06 以 awk 對原始 TSV 重跑對帳，與佇列頁診所補題表數字相符；掛載欄為「」1 家。｜來源 #23｜confidence=high｜basis=internal_dataset｜period=GSC 保留窗（2025-03-22 起）｜geo: TW｜caveat：曝光為屬性級數字、非去重流量；內部數據，非醫學宣稱，不進發布可見層。
• F2［結構性整理］｜把口語詞「暴牙」拆成三層（前牙水平覆蓋過大／齒槽性前突／骨性第二類）的分流框架、與費用卡、隱形矯正限制卡、地包天卡、牙齒外傷急症卡的 canonical 邊界聲明，以及「本卡只談處置類別、正文不以裝置比較給出選擇建議」的分工決定（風險段落引述來源原文中的裝置別比較不在此限，該類引述僅用於標明證據條件），皆為本站編輯定義的結構，非任何學會或文獻的正式分類系統；本卡把 overjet 中譯為「前牙水平覆蓋」並向讀者說明為「上前牙相對下前牙向前突出的水平距離」，同屬編輯性的用語對應——各來源以公釐測量 overjet（見 F9、F13），但本卡引用的來源中沒有一篇提供該詞的逐字定義句，故不得標為文獻事實。｜confidence=n/a｜basis=editorial｜geo: universal｜caveat：不得標為待驗（避免製造假查證工作）；本框架不構成診斷分類，臨床分類須由牙醫師判定。
• F3［結構性整理］｜「勝算比是族群指標不是個人風險」「分類無法自行判定」「本站不對拔牙與否給方向」「不承諾任何外觀結果」「使用消費者直送裝置出現異狀應停止自行調整並就診」等閱讀框架與保守取向措辭，皆為本站編輯決定，非文獻導出之閾值或建議。｜confidence=n/a｜basis=editorial｜geo: universal｜caveat：同上，不得標為待驗；本節不構成診斷或治療建議。
• F4｜Cochrane 回顧背景：上前牙前突是常見狀況，影響英國約四分之一的十二歲兒童；此狀況於恆牙萌發時發展；這些牙齒較容易受傷，而其外觀可能造成明顯的困擾。｜來源 #2｜confidence=moderate｜basis=peer_reviewed（Cochrane 系統性回顧，CD003452 pub4）｜period=2018（檢索至 2017-09-27；本卡 2026-08-06 於 PubMed 以「CD003452」檢索，命中 2007 pub2、2013 pub3、2018 pub4 三版，pub4 為現行最新版，pubtype 未含 Retracted Publication）｜geo: universal（盛行率數字限英國）｜caveat：四分之一為英國族群數字，禁外推至其他國家；「外觀可能造成明顯的困擾」為該回顧背景對就醫動機的描述，不得被引用為任何外觀改善的療效陳述。
• F5｜頭顱測量研究：四十八位不同族裔的雙顎前突病人，全部以拔除四顆小臼齒並後退前牙治療；治療前呈現前牙唇傾與前突增加、垂直向臉型型態、嘴唇前突增加、鼻唇角變小、上下顎前牙區齒槽骨薄且長。｜來源 #7｜confidence=low｜basis=peer_reviewed（回溯性頭顱測量研究）｜period=2005（本卡 2026-08-06 檢索另見 2019、2024 年之相關系統性回顧，主題為整體後退與骨釘錨定的效果比較，未取代本篇對形態特徵的描述）｜geo: universal｜caveat：樣本四十八人、單一族群來源、皆為已接受拔牙治療者；本卡僅引用其形態特徵描述，不引用其治療效果評語（原文對該治療使用了強烈措辭，本卡不轉譯亦不採用）。
• F6｜系統性回顧納入族群：骨性第二類咬合不正、下顎後縮、且已結束生長期的病人；比較掩飾性矯正與手術合併矯正的牙齒、骨骼與美觀結果，結局變項包含上顎相對顱底角度、上下顎差值角度、下顎相對顱底角度等側顱測量指標。｜來源 #9｜confidence=moderate｜basis=peer_reviewed（系統性回顧與統合分析）｜period=2018（本卡 2026-08-06 檢索未見同題新版；同作者群 2022 年另有第三類的對應回顧，非本題）｜geo: universal｜caveat：本條僅陳述其納入族群與結局指標，用以支持「骨性第二類」與「生長是否結束」的臨床區分；不得讀成任何治療推薦。
• F7｜系統性回顧：檢視二維側顱測量在矯正上的效度；電子檢索在三個資料庫分別得到七百八十四、一千零三十四與二百六十四篇，十七篇符合納入條件；作者結論為，儘管已有九百六十八篇同儕審查文獻，這項技術在矯正上有用性的科學證據仍然不足，且結果互相矛盾。｜來源 #15｜confidence=moderate（對「證據不足」這個結論）｜basis=peer_reviewed（系統性回顧）｜period=2013（本卡 2026-08-06 檢索未見同題新版系統性回顧）｜geo: universal｜caveat：「效度證據不足」不等於「不該拍」或「拍了沒用」，該回顧要求的是更嚴謹的研究；本卡僅用它支持「分類是臨床綜合判斷、非單一影像自動判定」，不得改寫為任何檢查建議或反建議。
• F8｜系統性回顧與統合分析設計：題目與計畫書事前登錄於約翰娜布里格斯研究所與 PROSPERO（CRD42017060907），採該所關聯性（病因）系統性回顧方法；三步驟檢索含四個資料庫與灰色文獻；僅納入方法學品質高、偏差風險低的研究；自三千七百一十八篇文章中納入四十一篇。｜來源 #1｜confidence=high（對設計）｜basis=peer_reviewed（系統性回顧與統合分析）｜period=2019｜geo: universal｜caveat：本條僅陳述設計；納入研究以觀察性設計為主，關聯不等於因果。
• F9｜同篇結果：增加的前牙水平覆蓋在所有齒列階段與年齡層都與較高的外傷勝算顯著相關；零至六歲、覆蓋大於或等於三公釐者勝算比 3.37（95% 信賴區間 1.36 至 8.38，P = 0.009）；混合齒列與恆齒列、覆蓋大於五公釐者勝算比 2.43（95% 信賴區間 1.34 至 4.42，P = 0.004）；十二歲兒童、覆蓋大於五公釐者勝算比 1.81（95% 信賴區間 1.44 至 2.27，P < 0.0001）。｜來源 #1｜confidence=moderate｜basis=peer_reviewed｜period=2019（本卡 2026-08-06 以「overjet + dental trauma + systematic[sb] + 2020:2026[dp]」檢索，未見取代本篇之同題新版統合分析；較新者為 2020 年統合回顧 F11 與 2022 年巴西族群回顧 F12，兩者方向一致但範圍不同）｜geo: universal｜caveat：勝算比為族群層級關聯指標，非個人風險機率，亦不代表因果；三個信賴區間皆不含 1，但區間寬度差異大（0-6 歲組上下限相差近六倍），代表該層估計的精確度低。
• F10｜同篇結論：結果證實增加的前牙水平覆蓋與牙外傷之間的關聯；乳齒列兒童在覆蓋大於或等於三公釐時可被視為具外傷風險，早期恆齒列的外傷門檻為覆蓋大於或等於五公釐。｜來源 #1｜confidence=moderate｜basis=peer_reviewed｜period=2019｜geo: universal｜caveat：該篇結果段對恆齒列使用「大於五公釐」、結論段使用「大於或等於五公釐」，端點用詞不一致；本卡兩種寫法皆照原文列出、不代為擇一，臨床上落在邊界者須由牙醫師依整體狀況判斷。
• F11｜統合系統性回顧的回顧：納入十九篇系統性回顧（四篇方法學品質極低、十一篇低、四篇中等），彙整之原始研究含二百四十九篇橫斷面等設計；男性、兒童年齡、較大的前牙水平覆蓋、嘴唇覆蓋不足、前牙開咬、恆齒齲齒、過重、既往外傷史、舌環、飲酒與運動參與，皆與較高的牙外傷機會相關；作者同時指出多數納入的系統性回顧品質偏低，可能無法提供準確而完整的證據總結。｜來源 #5｜confidence=moderate｜basis=peer_reviewed（系統性回顧之統合回顧，AMSTAR 2 評估）｜period=2020｜geo: universal｜caveat：這是「相關」的清單，不是風險排序，也不是可自我對照的評分表；作者對納入回顧品質的保留必須與結論並陳。
• F12｜系統性回顧與統合分析：巴西零至十九歲健康兒童與青少年；自二千四百九十三筆初始結果納入五十五篇（67% 為低偏差風險）；嘴唇覆蓋不足者發生牙外傷的可能性為 1.86 至 2.36 倍，前牙水平覆蓋增加者為 1.94 至 3.11 倍，乳齒列合併前牙開咬者為 1.76 倍（95% 信賴區間 1.20 至 2.59）；證據確定性（GRADE）自極低到中等不等。｜來源 #4｜confidence=moderate｜basis=peer_reviewed｜period=2022｜geo: universal｜caveat：族群限定為巴西，倍數為該族群的合併估計、非個人風險；原文以「1.86 至 2.36 倍」等區間呈現不同分層的估計，本卡照列不作平均。
• F13｜文獻綜述：以十個主題檢視嚴重咬合不正可能的後果；除成人嚴重咬合不正者的口腔健康相關生活品質較正常咬合者差、以及恆齒列覆蓋大於五公釐、乳齒列三公釐時牙外傷風險增加這兩項之外，其餘結論所依據的證據為低到中等品質且偏差風險高。｜來源 #6｜confidence=low-moderate｜basis=peer_reviewed（敘述性文獻綜述，非統合分析）｜period=2022｜geo: universal｜caveat：敘述性綜述，證據等級低於 F8–F12 的統合分析；本卡僅用它佐證外傷門檻的獨立記載與「其他後果證據較弱」這個限制，不引用其個別主題結論。
• F14｜Cochrane 回顧設計與早晚期比較：納入二十七項隨機對照試驗、一千二百五十一位受試者；三項試驗比較以功能性裝置做早期治療與晚期治療；兩組都完成治療後，最終前牙水平覆蓋無差異（平均差 0.21，95% 信賴區間 −0.10 至 0.51，P = 0.18，三百四十三人，低品質證據），上下顎差值角度亦無差異（平均差 −0.02，95% 信賴區間 −0.47 至 0.43，三百四十七人，中等品質證據）。｜來源 #2｜confidence=high（對設計）｜basis=peer_reviewed（Cochrane 系統性回顧）｜period=2018（現行最新版，見 F4 版本鏈查證）｜geo: universal｜caveat：最終覆蓋的信賴區間跨越 0，未排除無差異，不得寫成任一方較優；本條僅適用兒童與青少年族群。
• F15｜同篇：以功能性裝置做早期治療者，門牙外傷發生率低於晚期治療（勝算比 0.56，95% 信賴區間 0.33 至 0.95，三百三十二人，中等品質證據）；晚期治療組 30%（51/171）回報新發生的門牙外傷，早期治療組為 19%（31/161）。｜來源 #2｜confidence=moderate｜basis=peer_reviewed｜period=2018｜geo: universal｜caveat：族群為七至十一歲開始治療的兒童，非成人；51/171 與 31/161 為原文報告之絕對數，本卡未做任何換算；此為群體發生率差異，不是個人受傷與否的預測。
• F16｜同篇：兩項試驗比較以頭帽做早期治療與晚期治療；早期（兩階段）頭帽治療降低門牙外傷發生率（勝算比 0.45，95% 信賴區間 0.25 至 0.80，二百三十七人，低品質證據），新發生門牙外傷者為 24/117，晚期治療組為 44/120。｜來源 #2｜confidence=low｜basis=peer_reviewed｜period=2018｜geo: universal｜caveat：低品質證據、僅兩項試驗；本卡引用其方向，不引用為裝置選擇建議。
• F17｜同篇：七項試驗比較青少年期以功能性裝置治療與不治療；最終前牙水平覆蓋減少，固定式功能性裝置平均差 −5.46 公釐（95% 信賴區間 −6.63 至 −4.28，二項試驗六十一人）、活動式功能性裝置平均差 −4.62（95% 信賴區間 −5.33 至 −3.92，三項試驗一百二十二人），皆為低品質證據。｜來源 #2｜confidence=low｜basis=peer_reviewed｜period=2018｜geo: universal｜caveat：族群平均的組間差異，不是任何個人可預期的減少量；對照組為不治療，非其他治療方式；證據品質為低。
• F18｜同篇作者結論：低到中等品質的證據顯示，替上前牙前突的兒童提供早期矯正治療，在降低門牙外傷發生率上比青少年期單一療程更有效；相較於晚期治療，未見提供早期治療的其他好處；低品質證據顯示相較於不治療，青少年期以功能性裝置治療可有效降低上前牙的突出程度。｜來源 #2｜confidence=moderate｜basis=peer_reviewed｜period=2018｜geo: universal｜caveat：「更有效」限定在門牙外傷發生率這一個結局，禁擴大為整體療效優劣；治療時機屬臨床決策。
• F19｜系統性回顧與統合分析：檢索一九九五年一月至二〇二五年四月，納入十八篇研究，其中九篇提供足夠覆蓋資料進行統合（上下顎差值角度六篇、同儕評估分數四篇）；統合結果顯示早期治療與對照組在覆蓋、上下顎差值角度與同儕評估分數上沒有統計上顯著的長期差異，異質性自低到中等，整體證據確定性（GRADE）為中等；作者結論為早期矯正治療提供短期的咬合與骨骼參數改善，但現有證據不支持相對於延後介入的一致長期益處，臨床決策應個別化並保留給有特定適應症者，例如功能性錯咬、牙外傷風險增加或心理社會顧慮。｜來源 #3｜confidence=moderate｜basis=peer_reviewed｜period=2025｜geo: universal｜caveat：納入設計含世代研究、非全為隨機試驗；「沒有統計上顯著的長期差異」不等於「早期治療無用」——該篇同時記錄短期改善，且其結論明列外傷風險為保留適應症之一，兩件事必須並陳。
• F20｜系統性回顧與統合分析：檢索至二〇一八年三月、二十四個資料庫；納入八項非隨機研究（發表於十二篇論文），對象為十六歲以下、以功能性裝置治療的第二類病人，對照為未治療者；功能性裝置在幾乎所有時間點改善上下顎關係（生長結束時 Wits 值平均差 −3.52 公釐，95% 信賴區間 −5.11 至 −1.93，P < 0.0001）；下顎長度增加最多者為十八歲以上組（Co-Gn 平均差 3.20 公釐，95% 信賴區間 1.32 至 5.08，P = 0.0009），但下顎前突程度的改善很小或未達顯著；多數結局的證據品質為極低；作者結論為功能性裝置「可能」在長期有效矯正骨性第二類咬合不正，然而證據品質極低且臨床意義有限。｜來源 #10｜confidence=low｜basis=peer_reviewed｜period=2019｜geo: universal｜caveat：全數為非隨機研究、證據品質極低；作者用的是「可能有效」，禁改寫為方向性結論或療效陳述；「下顎長度增加」與「下顎前突改善」在原文是兩件事，後者被明寫為很小或未達顯著。
• F21｜系統性回顧與統合分析：檢索至二〇一三年七月，納入十篇文章，對象為以雙板裝置且非拔牙、非手術方式治療者，須有未治療對照組；各研究一致報告下前牙唇傾、上前牙舌傾、上顎臼齒遠心移動與（或）下顎臼齒近心移動、下顎長度增加與（或）下顎前移；未發現臨床上顯著的上顎生長抑制；下顎骨體長度雖增加，但其顏面影響被同時增加的臉高所抵銷；就嘴唇位置而言，證據不足以顯示明確的變化；多數變化單獨看臨床意義有限，合併後才達臨床重要性；無長期資料。｜來源 #11｜confidence=low｜basis=peer_reviewed｜period=2015｜geo: universal｜caveat：沒有長期資料；「嘴唇位置證據不足」這一項是本卡拒絕描述外觀變化的直接依據，禁被改寫成任何外觀方向的陳述。
• F22｜系統性回顧與統合分析：對象為十四歲以上、拔除上顎或上下顎小臼齒後進行上前牙整體後退的病人；檢索一九九〇年一月至二〇一八年四月十個資料庫，納入八篇（六篇隨機對照試驗、兩篇臨床對照試驗），五篇進入量化統合；整體後退造成上顎相對顱底角度與上下顎差值角度下降，各種整體後退方法之間無顯著差異；作者對整體效果的評語為「弱到中等的證據」。｜來源 #8｜confidence=low｜basis=peer_reviewed｜period=2019｜geo: universal｜caveat：本卡僅引用其處置機制、方法間無顯著差異，以及作者結論句的證據等級；一律不引用其對加速術式、骨釘錨定與療程時間的組間比較（屬臨床端選擇）。作者結論句中「改善顏面側面」為該研究之原文用語，本卡以引述方式保留並明確標示不轉譯為本站判斷，禁被抽出當作外觀改善的療效陳述。
• F23｜系統性回顧與統合分析：九個資料庫檢索至二〇一六年十二月，納入含小臼齒拔除或不拔牙治療的對照臨床研究；拔牙治療與下唇後退增加（二十四項研究、一千四百五十六位病人，平均差 1.96 公釐）、上唇後退增加（二十一項研究、一千一百四十九位病人，平均差 1.26 公釐）、鼻唇角增加（二十一項研究、一千零八十九位病人，平均差 4.21 度）、軟組織側面凸度（六項研究、四百零八位病人，平均差 1.24 度）與側面「討喜程度」（三項研究、二百四十九位病人，標準化平均差 0.41）有關；所有結果的證據品質皆為極低；作者結論為儘管拔牙看來會影響病人側面，現有研究異質性高，無法對側面反應做出一致的預測。｜來源 #12｜confidence=low｜basis=peer_reviewed｜period=2018（本卡 2026-08-06 檢索另見 2021 年同題統合分析 F25，樣本與納入研究數皆較小，兩篇結論分別記錄、未合併陳述）｜geo: universal｜caveat：族群平均差，不是個人可預期的變化量；證據品質極低；「無法一致預測」是本卡不對拔牙與外觀給方向的直接依據，禁被改寫成任何方向性結論。
• F24｜系統性回顧：檢視第二類第一分類病人以小臼齒拔除治療後的顏面軟組織頭顱測量變化；多數文章對治療前咬合不正嚴重度的描述不一致；具統計顯著的變化包含鼻唇角增加（拔兩顆方案 2.4 至 5.40 度、拔四顆方案 1 至 6.84 度）與上下唇後退，其中拔兩顆上顎小臼齒方案的下唇後退較少。｜來源 #13｜confidence=low｜basis=peer_reviewed（系統性回顧，未做統合分析）｜period=2016｜geo: universal｜caveat：未做統合分析、納入研究異質性高（作者自陳嚴重度描述不一致）；角度區間為不同研究的範圍，非合併估計值，禁被讀成可預期的個人變化。
• F25｜系統性回顧與統合分析：檢索 PubMed 與 SCOPUS 至二〇二〇年十一月；四項對照試驗的合併資料顯示拔牙與不拔牙在上顎相對顱底角度、下顎相對顱底角度、下顎平面角、下前牙傾斜角、覆蓋與覆咬上無顯著差異；拔牙組的上下顎差值角度顯著較高（平均差 0.78，95% 信賴區間 0.25 至 1.31，P = 0.004）；作者結論使用「不拔牙方案是拔牙方案安全而有效的替代選項」之措辭，並主張應採個別化治療策略、需要更多隨機對照試驗。｜來源 #14｜confidence=low｜basis=peer_reviewed｜period=2021｜geo: universal｜caveat：「安全而有效的替代選項」為該篇作者用語，本卡保留為原文用語，不轉譯為本站的安全性或優劣判斷；僅四項對照試驗、僅檢索兩個資料庫；該摘要中下前牙傾斜角的信賴區間呈現內部矛盾（下限大於上限），本卡因此不引用該項數值本身。
• F26｜同 F6 之系統性回顧結果：九篇進入質性合成、七篇進入統合分析；兩種治療在上顎相對顱底角度、下唇到審美平面的線性測量、骨骼側面凸度、不含鼻部的軟組織側面上差異未達統計顯著；手術合併矯正在上下顎差值角度、下顎相對顱底角度、下顎平面角與含鼻部的軟組織側面上較為有效；覆蓋與覆咬的治療效果差異隨初始值嚴重度而不同；作者要求謹慎解讀，因納入研究數量有限且皆為非隨機臨床試驗。｜來源 #9｜confidence=low｜basis=peer_reviewed｜period=2018｜geo: universal｜caveat：皆為非隨機試驗、研究數少；「較為有效」限定在所列的測量指標上，不得被讀成對個別病人的結果承諾或術式推薦。
• F27｜系統性回顧與統合分析：檢索 PubMed 與 Embase（一九九八年至二〇二五年二月），納入四十七項研究、五千四百零六位病人；「持續性感覺神經異常」定義為術後十二個月時仍被回報或評估到的感覺神經異常；矢狀劈開骨切開術後一年持續性感覺神經異常的合併發生率為 21%（95% 信賴區間 13% 至 32%）；較年長（九項研究中五項顯著）、下顎前移量較大（兩項中兩項顯著）、術中神經暴露或操作（三項中兩項顯著）與較高風險顯著相關；性別、骨骼分類、固定方式、第三大臼齒存在與同時施行頦成形術則未見顯著關聯。｜來源 #16｜confidence=moderate｜basis=peer_reviewed｜period=2026（本卡 2026-08-06 檢索之現行最新版；較早者為 2015 年之發生率系統性回顧，樣本與方法學廣度較小）｜geo: universal｜caveat：合併發生率為族群層級估計、非個人風險；納入設計含回溯性世代，感覺神經異常的評估方法在各研究間未標準化（作者自陳）。
• F28｜系統性回顧與統合分析：納入五十七項研究、九千一百零一位病人（平均年齡 16.4 歲、33.5% 為男性）；矯正病人白斑病灶的合併盛行率 55.06%（95% 信賴區間 47.7% 至 63.6%，四十二項研究）、發生率 34.2%（95% 信賴區間 27.6% 至 40.6%，四十四項研究）、牙面層級盛行率 26.9%；未治療者的合併盛行率為 29.1%（95% 信賴區間 17.2% 至 41.1%，二十一項研究）；傳統固定裝置出現白斑病灶的勝算為其他裝置的 4.7 倍（95% 信賴區間 1 至 19.2，P = 0.05）、為未治療者的七倍（95% 信賴區間 2.6 至 18.5，P = 0.001）；盛行率隨療程時間拉長而上升，並隨族裔與偵測方法而異；作者指出三分之一的未治療個案本身即已有白斑病灶，故治療開始時的完整記錄十分重要。｜來源 #18｜confidence=moderate｜basis=peer_reviewed｜period=2025｜geo: universal｜caveat：與其他裝置比較的勝算比信賴區間下限為 1、P = 0.05，屬邊界值，本卡正文因此僅引用「相對於未治療」的比較；盛行率隨偵測方法而異，跨研究可比性有限。
• F29｜系統性回顧與統合分析：矯正引起的發炎性牙根吸收被描述為矯正治療常見的不良作用；以錐狀射束電腦斷層為基礎，納入五項研究、三百三十四位受試者，資料足以分析者為上顎前牙；透明矯正裝置與固定裝置之間的差異未達統計顯著（P > 0.05），且兩組皆未呈現臨床上有意義的程度（小於一公釐）；存在中度到高度的偏差風險；作者指出在非高風險族群中，不應為了擔心牙根吸收而優先選擇透明矯正裝置。｜來源 #19｜confidence=low｜basis=peer_reviewed｜period=2025｜geo: universal｜caveat：族群為完整恆齒列且排除既往牙根吸收、外傷與根管治療者，結果不可外推至高風險個案；「未達統計顯著」不等於兩者相同；本卡不引用其作為任何裝置的選擇建議。
• F30｜Cochrane 系統性回顧：檢索至二〇二二年四月二十七日；納入四十七項研究、四千三百七十七位受試者，比較活動式與固定式維持器、不同固定式維持器或黏著材料、不同活動式維持器；二十八項研究判定為高偏差風險；以十二個月追蹤為焦點，證據為低或極低確定性；作者結論為無法就任何一種維持方式優於另一種下確定結論，並指出多數研究的追蹤期不到一年，需要更多測量至少兩年穩定度的高品質研究。｜來源 #17｜confidence=high（對「證據不足以比較」這個結論）｜basis=peer_reviewed（Cochrane 系統性回顧，CD002283 pub5，2016 pub4 之更新版）｜period=2023（本卡 2026-08-06 檢索確認為現行最新版，pubtype 未含 Retracted Publication）｜geo: universal｜caveat：該回顧排除使用透明矯正裝置的研究；「無法比較優劣」不等於「不需要維持」——原文背景明寫沒有維持階段，牙齒傾向復發，兩者禁混寫。
• F31｜橫斷面評估研究：評估二十一個消費者直送矯正裝置供應商網站的治療資訊品質；提及治療前口腔健康需求者 38.1%、提及療程後需無限期維持者 23.8%；95.2% 的網站依 DISCERN 分數被歸類為差或很差，其中資訊偏誤與治療風險兩項得分特別低；可讀性評分顯示內容難以閱讀；作者結論為僅依網站資訊作出的治療同意很可能無效。｜來源 #21｜confidence=moderate｜basis=peer_reviewed（網站內容評估研究）｜period=2021｜geo: universal｜caveat：評估對象為網站內容，不是治療結果；「同意很可能無效」是該研究對資訊揭露的評語，本卡不作任何法律見解之引申。
• F32｜使用者調查：二十四題線上問卷，於社群平台與相關論壇招募（二〇一九年三月至八月），分析四百七十份回應；典型受訪者為白人千禧世代女性、因擁擠而購買；超過半數在購買前曾諮詢牙醫師，且該牙醫師多半建議院內治療；87.5% 對治療感到滿意，6.6% 因不良反應之嚴重程度而必須就醫。｜來源 #20｜confidence=low｜basis=peer_reviewed（自選樣本橫斷面調查）｜period=2020｜geo: universal｜caveat：社群平台招募的自選樣本、非機率抽樣，兩個百分比皆不可讀為一般族群的滿意率或併發症發生率；本卡不引用其對業界共存模式的政策性建議。
• F33｜橫斷面調查：於西班牙進行、為期一年的線上問卷，分析一百零一份有效回應；多數受訪者表示期待未被滿足、不會推薦此類服務；選擇動機以費用為首、便利性次之；許多使用者出現併發症並因此就診；各供應商間整體滿意度無顯著差異，但在不適程度、可及的面對面照護與額外諮詢需求上有差異。｜來源 #22｜confidence=low｜basis=peer_reviewed（單一國家橫斷面調查）｜period=2025｜geo: universal｜caveat：樣本一百零一人、單一國家、自填問卷；「許多使用者」為原文之非量化描述，本卡未替它換算任何比例。
• F34｜台灣《醫療法》第 81 條：醫療機構診治病人時，應向病人或其法定代理人、配偶、親屬或關係人告知其病情、治療方針、處置、用藥、預後情形及可能之不良反應。｜來源 #24｜confidence=high｜basis=law｜period=現行條文（2026-08-06 以 ego-browser 實載全國法規資料庫頁面，標題「醫療法§81-全國法規資料庫」，條文逐字取得並核對；同 VERIFIED-FACTS 已驗錨）｜geo: TW｜caveat：條文轉述，非法律意見；本卡據此把治療計畫與風險說明導回診間。
• F35｜台灣《醫療法》第 87 條：廣告內容暗示或影射醫療業務者，視為醫療廣告；醫學新知或研究報告之發表、病人衛生教育、學術性刊物，未涉及招徠醫療業務者，不視為醫療廣告。｜來源 #24｜confidence=high｜basis=law｜period=現行條文（2026-08-06 以 ego-browser 實載，標題「醫療法§87-全國法規資料庫」，兩項條文逐字取得；同 VERIFIED-FACTS 已驗錨）｜geo: TW｜caveat：本卡定位依據；在其他國家發布時，衛教與廣告的界線請以當地法規為準。

來源清單

1. Arraj GP, Rossi-Fedele G, Doğramacı EJ. The association of overjet size and traumatic dental injuries-A systematic review and meta-analysis. Dent Traumatol. 2019 Oct;35(4-5):217-232. PMID 31062510. https://pubmed.ncbi.nlm.nih.gov/31062510/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「The title and protocol were registered and published a priori with the Joanna Briggs Institute (JBI) and PROSPERO (CRD42017060907)」「Only high methodological quality studies with low risk of bias were included」「The study identified 3718 articles, 41 were included. An increased overjet was significantly associated with higher odds of developing trauma in all dentition stages and age groups. Children 0-6 years with an overjet ≥3mm have an odds of 3.37 (95%CI, 1.36-8.38, P = 0.009) for trauma. Children in the mixed and secondary dentition with an overjet >5mm have an odds of 2.43 (95%CI, 1.34-4.42, P = 0.004). Twelve-year-old children with an overjet >5mm have an odds of 1.81 (95%CI, 1.44-2.27, P < 0.0001)」「A child in the primary dentition could be considered as having an overjet at risk for trauma when it is ≥3mm. In the early secondary dentition, the threshold for trauma is an overjet ≥5mm」
2. Batista KB, Thiruvenkatachari B, Harrison JE, O'Brien KD. Orthodontic treatment for prominent upper front teeth (Class II malocclusion) in children and adolescents. Cochrane Database Syst Rev. 2018 Mar 13;3(3):CD003452. PMID 29534303. https://pubmed.ncbi.nlm.nih.gov/29534303/（取用 2026-08-06，efetch 摘要取回成功；版本鏈以「CD003452」檢索確認 pub4 為現行最新版）。逐字 span：「Prominent upper front teeth are a common problem affecting about a quarter of 12-year-old children in the UK. The condition develops when permanent teeth erupt. These teeth are more likely to be injured and their appearance can cause significant distress」「We included 27 RCTs based on data from 1251 participants」「when both groups had completed treatment, there was no difference between groups in final overjet (MD 0.21, 95% CI -0.10 to 0.51, P = 0.18; 343 participants) (low-quality evidence) or ANB (MD -0.02, 95% CI -0.47 to 0.43; 347 participants) (moderate-quality evidence)」「Early treatment with functional appliances reduced the incidence of incisal trauma compared to late treatment (OR 0.56, 95% CI 0.33 to 0.95; 332 participants) (moderate-quality evidence). The difference in the incidence of incisal trauma was clinically important with 30% (51/171) of participants reporting new trauma in the late treatment group compared to only 19% (31/161) of participants who had received early treatment」「Early (two-phase) treatment with headgear reduced the incidence of incisal trauma (OR 0.45, 95% CI 0.25 to 0.80; 237 participants) (low-quality evidence), with almost half the incidence of new incisal trauma (24/117) compared to the late treatment group (44/120)」「There was a reduction in final overjet with both fixed functional appliances (MD -5.46 mm, 95% CI -6.63 to -4.28; 2 trials, 61 participants) and removable functional appliances (MD -4.62, 95% CI -5.33 to -3.92; 3 trials, 122 participants) (low-quality evidence)」「Evidence of low to moderate quality suggests that providing early orthodontic treatment for children with prominent upper front teeth is more effective for reducing the incidence of incisal trauma than providing one course of orthodontic treatment in adolescence. There appear to be no other advantages of providing early treatment when compared to late treatment. Low-quality evidence suggests that, compared to no treatment, late treatment in adolescence with functional appliances, is effective for reducing the prominence of upper front teeth」
3. Almugla YM, Shekhar MG. Does Early Orthodontic Treatment in Mixed Dentition Improve Long-Term Outcomes? A Systematic Review and Meta-Analysis. Medicina (Kaunas). 2025 Oct 16;61(10):1854. PMID 41155841. https://pubmed.ncbi.nlm.nih.gov/41155841/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「A total of 18 studies were included in the systematic review, of which nine provided sufficient data on overjet for meta-analysis, with overlapping datasets available for ANB angle (n = 6) and PAR scores (n = 4). Meta-analyses showed no statistically significant long-term differences between early treatment and control groups in overjet, ANB angle, or PAR scores. Heterogeneity across outcomes ranged from low to moderate. The overall certainty of the evidence was rated as moderate」「Early orthodontic treatment provides short-term improvements in occlusal and skeletal parameters. However, current evidence does not support consistent long-term benefits over delayed intervention. Clinical decision-making should be individualized and reserved for cases with specific indications, such as functional crossbites, increased risk of dental trauma, or psychosocial concerns」
4. Vieira WA, Pecorari VGA, Gabriel PH, et al. The association of inadequate lip coverage and malocclusion with dental trauma in Brazilian children and adolescents - A systematic review and meta-analysis. Dent Traumatol. 2022 Feb;38(1):4-19. PMID 34275184. https://pubmed.ncbi.nlm.nih.gov/34275184/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「The search presented 2493 initial results, from which 55 met the eligibility criteria and were included. Most studies (67%) presented a low risk of bias」「Children and adolescents with inadequate lip coverage are 1.86-2.36 times more likely to suffer from DT, while those with increased overjet are 1.94-3.11 times more likely. Children with primary dentitions and anterior open bites are 1.76 (95% CI: 1.20-2.59) times more likely to suffer from DT. The certainty of evidence varied from very low to moderate」
5. Magno MB, Nadelman P, Leite KLF, Ferreira DM, Pithon MM, Maia LC. Associations and risk factors for dental trauma: A systematic review of systematic reviews. Community Dent Oral Epidemiol. 2020 Dec;48(6):447-463. PMID 32893395. https://pubmed.ncbi.nlm.nih.gov/32893395/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「19 systematic reviews were included in this overview. Four were classified with critically low, eleven with low and four with moderate methodological quality」「Male gender, child age, greater overjet, inadequate lip coverage, anterior open bite, caries in the permanent dentition, overweight, a previous history of TDI, tongue piercing, the use of alcoholic beverages and participation in sports were all associated with a greater chance of suffering TDI」「most of the systematic reviews included were of a low quality and may not provide an accurate and comprehensive summary of the available research that addresses the question of interest」
6. Leck R, Paul N, Rolland S, Birnie D. The consequences of living with a severe malocclusion: A review of the literature. J Orthod. 2022 Jun;49(2):228-239. PMID 34488471. https://pubmed.ncbi.nlm.nih.gov/34488471/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「With the exception of Oral Health Related Quality Of Life, which is poorer in adults with severe malocclusion than those with normal occlusions, and the risk of Traumatic Dental Injury, which increases when the overjet is >5 mm in the permanent and 3 mm in the primary dentition, the evidence supporting the remaining conclusions was found to be of low to moderate quality and at high risk of bias」
7. Bills DA, Handelman CS, BeGole EA. Bimaxillary dentoalveolar protrusion: traits and orthodontic correction. Angle Orthod. 2005 May;75(3):333-9. PMID 15898369. https://pubmed.ncbi.nlm.nih.gov/15898369/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「A group of 48 ethnically diverse patients with bimaxillary protrusion was used to study the pretreatment cephalometric traits of this malocclusion and the effect of orthodontic correction. All patients were treated with four premolar extractions and retraction of the anterior teeth」「Patients with bimaxillary protrusion demonstrated increased incisor proclination and protrusion, a vertical facial pattern, increased procumbency of the lips, a decreased nasolabial angle, and thin and elongated upper and lower anterior alveoli」
8. Khlef HN, Hajeer MY, Ajaj MA, Heshmeh O. En-masse Retraction of Upper Anterior Teeth in Adult Patients with Maxillary or Bimaxillary Dentoalveolar Protrusion: A Systematic Review and Meta-analysis. J Contemp Dent Pract. 2019 Jan 1;20(1):113-127. PMID 31058623. https://pubmed.ncbi.nlm.nih.gov/31058623/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「The participants were patients over 14 years old undergoing fixed orthodontic treatment with extraction of maxillary or bimaxillary premolars followed by en-masse retraction of maxillary anterior teeth in both groups」「Eight articles (six RCTs and two CCTs) were included in this review, and only five articles were suitable for quantitative synthesis. The en-masse retraction caused a decrease in the SNA and ANB angles with no significant differences between the different en-masse retraction methods」「There is a weak to moderate evidence that using accelerated and non-accelerated methods would improve the facial profile and lead to similar skeletal corrections」
9. Raposo R, Peleteiro B, Paço M, Pinho T. Orthodontic camouflage versus orthodontic-orthognathic surgical treatment in class II malocclusion: a systematic review and meta-analysis. Int J Oral Maxillofac Surg. 2018 Apr;47(4):445-455. PMID 28966066. https://pubmed.ncbi.nlm.nih.gov/28966066/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「This systematic review was performed to compare dental, skeletal, and aesthetic outcomes between orthodontic camouflage and surgical-orthodontic treatment, in patients with a skeletal class II malocclusion and a retrognathic mandible who have already finished their growth period」「Nine articles were included in the qualitative synthesis and seven in the meta-analysis. The difference between treatments was not statistically significant regarding SNA angle, linear measurement of the lower lip to Ricketts' aesthetic line, convexity of the skeletal profile, or the soft tissue profile excluding the nose. In contrast, surgical-orthodontic treatment was more effective with regard to ANB, SNB, and ML/NSL angles and the soft tissue profile including the nose. Different treatment effects on overjet and overbite were found according to the severity of the initial values. These results should be interpreted with caution, due to the limited number of studies included and because they were non-randomized clinical trials」
10. Cacciatore G, Ugolini A, Sforza C, Gbinigie O, Plüddemann A. Long-term effects of functional appliances in treated versus untreated patients with Class II malocclusion: A systematic review and meta-analysis. PLoS One. 2019 Sep 6;14(9):e0221624. PMID 31490945. https://pubmed.ncbi.nlm.nih.gov/31490945/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「Eight non-randomised studies published in 12 papers were included. Functional appliances produced a significant improvement of the maxillo-mandibular relationship, at almost all time points (Wits appraisal at the end of growth, MD -3.52 mm, 95% CI -5.11 to -1.93, P < 0.0001). The greatest increase in mandibular length was recorded in patients aged 18 years and above (Co-Gn, MD 3.20 mm, 95% CI 1.32 to 5.08, P = 0.0009), although the improvement of the mandibular projection was negligible or not significant. The quality of evidence was 'very low' for most of the outcomes at both primary time points」「Functional appliances may be effective in correcting skeletal Class II malocclusion in the long-term, however the quality of the evidence was very low and the clinical significance was limited」
11. Ehsani S, Nebbe B, Normando D, Lagravere MO, Flores-Mir C. Short-term treatment effects produced by the Twin-block appliance: a systematic review and meta-analysis. Eur J Orthod. 2015 Apr;37(2):170-6. PMID 25052373. https://pubmed.ncbi.nlm.nih.gov/25052373/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「Proclination of lower incisors, retroclination of upper incisors, distal movement of upper molars and/or mesial movement of lower molars, increase in mandibular length, and/or forward movement of the mandible were consistently reported. Clinically significant restraint of maxillary growth was not found. Although the mandibular body length is increased, the facial impact of it is reduced by the simultaneous increment of the face height」「As for lip position, there is not enough evidence to suggest clear lip position changes」「Most of the changes individually were of limited clinical significance, but when combined reached clinical importance. No long-term changes were available」
12. Konstantonis D, Vasileiou D, Papageorgiou SN, Eliades T. Soft tissue changes following extraction vs. nonextraction orthodontic fixed appliance treatment: a systematic review and meta-analysis. Eur J Oral Sci. 2018 Jun;126(3):167-179. PMID 29480521. https://pubmed.ncbi.nlm.nih.gov/29480521/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「Extraction treatment was associated with increased lower lip retraction (24 studies; 1,456 patients; MD = 1.96 mm), upper lip retraction (21 studies; 1,149 patients; MD = 1.26 mm), nasolabial angle (21 studies; 1,089 patients; MD = 4.21°), soft-tissue profile convexity (six studies; 408 patients; MD = 1.24°), and profile pleasantness (three studies; 249 patients; SMD = 0.41)」「the quality of evidence was very low in all cases due to risk of bias, baseline confounding, inconsistency, and imprecision. Although tooth extractions seem to affect patient profile, existing studies are heterogenous and no consistent predictions of profile response can be made」
13. Janson G, Mendes LM, Junqueira CH, Garib DG. Soft-tissue changes in Class II malocclusion patients treated with extractions: a systematic review. Eur J Orthod. 2016 Dec;38(6):631-637. PMID 26620831. https://pubmed.ncbi.nlm.nih.gov/26620831/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「Heterogeneous information about malocclusion severity before treatment was found in most articles. Statistically significant soft-tissue changes reported included nasolabial angle (NLA) increasing from 2.4 to 5.40degrees in 2-premolar extraction protocol and from 1 to 6.84degrees in 4-premolar extraction protocol. Retrusion of the upper and lower lips were also verified, with less retraction of the lower lip in 2-premolar extraction groups」
14. Moon S, Mohamed AMA, He Y, Dong W, Yaosen C, Yang Y. Extraction vs. Nonextraction on Soft-Tissue Profile Change in Patients with Malocclusion: A Systematic Review and Meta-Analysis. Biomed Res Int. 2021 Sep 18;2021:7751516. PMID 34589550. https://pubmed.ncbi.nlm.nih.gov/34589550/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「Pooled data from four controlled trials demonstrated a nonsignificant difference between extraction and nonextraction in terms of SNA (MD = 0.50, 95% CI: -0.37, 1.38; p = 0.26), SNB (MD = 0.11, 95% CI: -1.23, 1.44; p = 0.88)」「the extraction method significantly increased the ANB compared with the nonextraction group (MD = 0.78, 95% CI: 0.25, 1.31; p = 0.004)」「The current evidence demonstrated that nonextraction protocols for orthodontic treatment are a safe and effective alternative to extraction protocols; individually tailored treatment strategies should be applied」
15. Durão AR, Pittayapat P, Rockenbach MI, Olszewski R, Ng S, Ferreira AP, Jacobs R. Validity of 2D lateral cephalometry in orthodontics: a systematic review. Prog Orthod. 2013 Sep 20;14(1):31. PMID 24325757. https://pubmed.ncbi.nlm.nih.gov/24325757/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「The initial search revealed 784 articles listed in MEDLINE (Ovid), 1,034 in Scopus and 264 articles in the Web of Science. Only 17 articles met the inclusion criteria and were selected for qualitative synthesis」「It is surprising that, notwithstanding the 968 articles published in peer-reviewed journals, scientific evidence on the usefulness of this radiographic technique in orthodontics is still lacking, with contradictory results」
16. Bertagna AE, Van der Cruyssen F, Miloro M. Persistent Neurosensory Disturbance Following Sagittal Split Osteotomy: A Systematic Review and Meta-Analysis of One-Year Outcomes and Risk Factors. J Oral Maxillofac Surg. 2026 Jan;84(1):25-44. PMID 40983111. https://pubmed.ncbi.nlm.nih.gov/40983111/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「"Persistent NSD" was defined as any NSD reported or assessed at 12 months postoperatively」「The final sample comprised 47 studies (5,406 patients). The pooled 1-year incidence of persistent NSD was 21% (95% CI, 13%-32%). Older age (statistically significant in 5 out of 9 studies), greater mandibular advancement (significant in 2 out of 2 studies), and intraoperative nerve exposure/manipulation (significant in 2 out of 3 studies) were statistically significantly associated with a higher risk of persistent NSD」「persistent NSD was not significantly associated with sex (8/9 studies), skeletal class (4/5), fixation method (1/2), third molar presence (1/1), or concomitant genioplasty (3/5)」
17. Martin C, Littlewood SJ, Millett DT, Doubleday B, Bearn D, Worthington HV, Limones A. Retention procedures for stabilising tooth position after treatment with orthodontic braces. Cochrane Database Syst Rev. 2023 May 22;5(5):CD002283. PMID 37219527. https://pubmed.ncbi.nlm.nih.gov/37219527/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「Without a phase of retention after successful orthodontic treatment, teeth tend to 'relapse', that is, to return to their initial position」「We excluded studies with aligners」「We included 47 studies, with 4377 participants」「We judged 28 studies to have high risk of bias」「The evidence is low to very low certainty, so we cannot draw firm conclusions about any one approach to retention over another. More high-quality studies are needed that measure tooth stability over at least two years」
18. Hussain U, Wahab A, Kamran MA, et al. Prevalence, Incidence and Risk Factors of White Spot Lesions Associated With Orthodontic Treatment - A Systematic Review and Meta-Analysis. Orthod Craniofac Res. 2025 Apr;28(2):379-399. PMID 39717964. https://pubmed.ncbi.nlm.nih.gov/39717964/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「Fifty-seven studies involving 9101 patients (mean age of 16.4 years, 33.5% male) were included. Among orthodontic patients, the pooled prevalence of WSLs was 55.06% (95% CI: 47.7%, 63.6%: 42 studies), incidence was 34.2% (95% CI: 27.6%, 40.6%: 44 studies) and surface prevalence was 26.9% (6 studies; 95% CI: 13.8%, 39.8%). Among non-treated patients, the pooled prevalence of WSLs was 29.1% (95% CI: 17.2%, 41.1%; 21 studies). The odds of WSLs were significantly higher, with CFA being 4.73 times greater compared to other appliances (OR = 4.7, 95% CI: 1, 19.2, p = 0.05) and seven times higher compared to no treatment (OR = 7, 95% CI: 2.6, 18.5, p = 0.001). Prevalence of WSLs increased with longer treatment duration (p < 0.001)」「Since one-third of untreated cases already have WSLs, proper documentation at treatment start is essential」
19. Kreuter P, Sára Haba K, Kiss-Dala S, et al. Root resorption caused by aligners, self-ligating appliances, and conventional fixed appliances: a CBCT-based meta-analysis. BMC Oral Health. 2025 Jul 26;25(1):1259. PMID 40713565. https://pubmed.ncbi.nlm.nih.gov/40713565/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「Orthodontically induced inflammatory root resorption (OIIRR) is a common adverse effect of orthodontic treatments」「The meta-analysis included five studies with 334 participants. Data on upper incisors were sufficient for analysis. Differences in OIIRR between aligners and fixed appliances did not reach statistical significance (p > 0.05), and neither group presented clinically relevant OIIRR (< 1 mm). A moderate to high risk of bias was present」
20. Wexler A, Nagappan A, Beswerchij A, Choi R. Direct-to-consumer orthodontics: surveying the user experience. J Am Dent Assoc. 2020 Aug;151(8):625-636.e4. PMID 32718492. https://pubmed.ncbi.nlm.nih.gov/32718492/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「The authors recruited users for 6 months (March-August 2019) on social media platforms (Instagram, Twitter) and online forums related to DTC orthodontics. A total of 470 responses were analyzed」「Although most respondents (87.5%) were satisfied with DTC treatment, 6.6% had to visit their dentist due to the severity of adverse effects」
21. Meade MJ, Dreyer CW. An assessment of the treatment information contained within the websites of direct-to-consumer orthodontic aligner providers. Aust Dent J. 2021 Mar;66(1):77-84. PMID 33237579. https://pubmed.ncbi.nlm.nih.gov/33237579/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「Twenty-one websites were evaluated. Few websites referred to the need for pre-treatment dental health (38.1%) and indefinite post-treatment retention (23.8%). Most websites (95.2%) were categorized as either 'poor' or 'very poor' according to their DISCERN scores. DISCERN items regarding information bias and treatment risks scored particularly poorly」「The quality of information contained within the websites of DTC orthodontic aligner providers is poor. Patient consent for DTC aligner treatment based solely on the information contained within the websites is likely to be invalid」
22. Adobes Martin M, Pérez Márquez A, Meuli S, et al. User Experience, Satisfaction, and Complications of Direct-to-Consumer Orthodontics in Spain: A Cross-Sectional Study. J Clin Med. 2025 Mar 30;14(7):2382. PMID 40217832. https://pubmed.ncbi.nlm.nih.gov/40217832/（取用 2026-08-06，efetch 摘要取回成功）。逐字 span：「A cross-sectional online survey was conducted over one year」「A total of 101 valid responses were analyzed using statistical means」「The majority of respondents reported that their expectations were not met, and they would not recommend DTCO. Cost was the primary motivation for treatment selection, followed by convenience. Many users experienced complications, leading to dental consultations」
23. km 牙醫線選題底帳 [F1]：`km-production-queue.html` 第三區「診所補題」表「暴牙矯正」列（曝光 305、掛載），數字以 `gsc-full-20260804/__web__full.tsv` 於 2026-08-06 重跑對帳確認（75 列、impressions 305、clicks 0）。資料源＝14 診所資產 GSC 全量對帳。
24. 台灣《醫療法》第 81、87 條，全國法規資料庫。https://law.moj.gov.tw/LawClass/LawSingle.aspx?pcode=L0020021&flno=81／https://law.moj.gov.tw/LawClass/LawSingle.aspx?pcode=L0020021&flno=87（2026-08-06 以 ego-browser 實載，頁面標題分別為「醫療法§81-全國法規資料庫」「醫療法§87-全國法規資料庫」，條文逐字核對；同 VERIFIED-FACTS 已驗錨）

內部引用鏈

• 費用正典卡：「牙套」要多少錢？先分清楚你問的是矯正牙套還是假牙牙冠（KM-DENTAL-08，草稿）與隱形矯正要花多少錢？這筆錢是怎麼算出來的（KM-DENTAL-C03，草稿）。canonical 邊界：矯正的收費結構、報價單讀法、健保給付與否等制度面問題，一律以該兩卡為準；本卡正文不列任何金額、不談收費項目。
• 裝置面卡：隱形矯正的適應範圍與限制（KM-DENTAL-C07，同批製作中，連結上線後補）。透明矯正裝置能完成哪些位移、什麼情況需要搭配其他方式，以該卡為準；本卡只做「處置方向有哪幾類」的分流，不比較裝置與品牌。
• 相反方向的骨骼關係：下顎前突（俗稱地包天）（KM-DENTAL-C14，同批製作中，連結上線後補）。第三類的骨骼關係與處置邏輯在該卡；本卡只做一句對照。
• 兒童裝置題：上顎擴張器是什麼、什麼情況需要（KM-DENTAL-C18，同批製作中，連結上線後補）。生長期兒童的另一類裝置在該卡；本卡的「生長改良」一節只談策略類別，不展開任何單一裝置。
• 急症卡：牙齒突然掉了一顆怎麼辦？（KM-DENTAL-30，草稿）。本卡談的是外傷「風險」，該卡談的是外傷「已經發生」之後的處置時效與紅旗，兩者不重疊。

發布閘門提醒：本卡為 draft。四語（zh-Hans／en／ja）未產前不得進 km_entries；本卡不含症狀分級與紅旗判準，但含外傷風險數字與手術併發症率，建議依審核鏈規格由 OP 判定是否加做第三意見。