Page 19 - 根管治療的美麗與哀愁(起承)2020-0422(01)
P. 19
࣬၍طᐕٙߕᘆၾۑฎ ( ৎeוᇐ )
起 篇 樂 章
ৎ
如何決定根管治療的工作長度 ᇐ
૧ۆʔ༺d̨ᝄڳፎթၡғॎມd௪䋠˓ආБ࣬၍௴ၾࡌҖࣛd
௰੬ओତٙܠdఱ݊༈νОঐኋҞਗ਼˓ʕٙቛ০׳Ց࣬φ၌ٙ̈ɹஈd˸کඎ
ԨՑ࿁வࡈ࣬၍ٙʈЪڗܓf݊dɨจᗆ༁ఱ࢙ਗ਼ቛ০ಃ࣬φ˙Σdࣛ੬
ΪϾ̈əɓࡈ፹Ⴌٙ࣬၍༩ࢰ (wrong pathway of the canal)eޟЇிϓə၍ኣ߈ˆ
(perforation)iν؈ܘֱ༶ήίᒔӚிϓ߈ˆۃdఱ೯ତቛ০ʊᕎ͍ᆽ༩ࢰdֻֻΫ
᎘ซࠅࠠอҬΫࣛdɰʔԈ࢙iϾ˲ஷ੬ί၍ഢΝɓஈཀᅰࡈԸΫٙઞ॰d˓ɪ
ቛ০߰ᒔ݊ೌجනлۃආdৰə݄ஔ٫ึː͛ंተ̮dɰʊί၍ኣɪ௴ܔ̈əɓࡈ̻
̨ (ledge)dϾவࡈ̨̻ਗ਼ึҪ͍ᆽٙ࣬၍ɝɹՑ၍ഢᗙඦאਉኣɪdԴซࠠอ
ҬΫ࣬၍ஷ༸ٙዚึһ̋ঝiೌքٙ݊dҬΫ͍ᆽٙ࣬၍༩ࢰdɦᐼ݊Ύطᐕ
ࣛ௰੬ࠦ࿁ٙᗭᕚʘɓfה˸݄ᅃ ᔼࢪࣛ੬ѓႪኪࡰd݄Б࣬၍௴Ꮠ༈݊ࠅjtreat a
canal, not make a canal; let canal takes the instrument in...
量測根管工作長度前,不可不知牙根尖端的解剖形態和相關詞彙 ( 圖 A1 )
ROOT APEX ANATOMY
APEX
MAJOR OPENING
FORAMEN
CDJ
MINOR OPENING
APICAL CONSTRICTION
ྡ A1 ඎʈЪڗܓࣛd̀ٝ༸࣬φЗٙ༆࡚Җ࿒ձᗫ൚ค
1. CDJ(Cemento-Dentinal Junction)
̴݊ɓࡈ˫ଡ଼ᔌί༆࡚Җ࿒ɪٙΤ൚dᆽྼπίf್Ͼdί೯ԃٙཀʕd͟
˫৶ሯ (cementum) Ԩʔ݊ί˫࣬ӊɓਉᗙЪഃѩʴήӐጐאᄣڗfΪϤd༆࡚ʘ
ܝd˫৶ሯ˫࣬ٙӊɓਉᗙேึяତ̈ϞێϞᑛdԴ CDJ ίڐːձჃːਉᗙԨʔɓ
3