Page 36 - 根管治療的美麗與哀愁(起承)2020-0422(01)

先擴展打開根管的冠側和中段部位 (Crown-down technique)

ਿ͉ɪϞ̬ࡈͦٙձλஈj
1. ΋Ҫڿਉձʕݬ௅Зٙڜᖟ૶ৰəd݄Б࣬၍૶௴ၾࡌҖdఱึһ࢙̋׸f
2. ߰ڿਉ௅З͂කədәݹ૰ఱ࢙׸ऍᆗՑɨݬ၍ഢdԨቇ຅ή೯౨Ъ͜f

3. ߰ڿਉձʕݬ௅Зʊᓒ࢝ədࠅઞ॰࣬φ̈ɹܸٙชdɰਗ਼һމઽቚf
4. ߰ɓක֐ఱซᜫቛ০ɓ༩Ց༺ RTd༰࢙׸ਗ਼ࡡ͉׵၍ഢʕdʊ೯فאᕸϥٙيሯdપ
̈࣬φɹ਼ጐdிϓһɽٙܝ፲सiΪϤd߰ঐ΋Ҫڿਉձʕݬ௅Зᛪ඾ٙᐑྤ૶ৰદd

ԟჿуԴՑ௰ܝՍจ̘ઞ॰࣬φ̈ɹࣛdఱၑቛ০ε๞̈఻ϣ (peeking through)dɰʔ
ߧ׵ҪɓԬᛪ؇Гપ̘̈˄εdˏৎܝ፲सٙዚึdאஔܝ़೨dɰఱІ್ಯˇəf

設定根尖段管腔修形的目標錐度

ɓছ࿁࣬φݬ၍ഢஷ༸ٙࡌҖd̥ࠅ˫࣬ٙێྼܓԑ੄dܔᙄЇˇࠅЪՑ፿ܓʬ
(0.06 taper) ˸ɪdޟЇՑ፿ܓɤɰ̙˸fவࡀᝇୌΥෂ୕ Step-back Technique ࿁࣬၍
૶௴ٙܔᙄi༈˓ج (Step-back) Ҏૐ݄ஔ٫੻Ցୋɓ˕̙˸׳ՑʈЪڗܓ ( Էν WL:
20mm)e˲ঐ஗࣬φ၌၍ኣېИٙቛ০ (ISO #10 file)iʘܝdࠅঐί༈ଉܓਗ਼၍ഢᓒ࢝

Ցˢୋɓ˕஗၍ኣېИٙቛ০Ύɽɧ˕໮ϣ (ISO#15, #20, #25 file, 20mm)iϤܝdӊ
ֻڿਉ˙ΣΫৗ (step-back)1mm א 0.5mm ఱ੻࿁༈Зໄٙ၍ኣɹࢰdΎࠅᓒ࢝ՑୌΥ
һɽɓ˕໮ϣٙቛ০ٜࢰ˙̙dϾ˲̀඲ԱϤ๟ۆdЇˇЪ̈ɧචܝdΎਗ਼ʔᄁ ( אя
ච૒ᅵ ) ٙ၍ኣdආɓӉࡌϓ̻๞ً (smooth)dʑ݊༈˓جהႩ̙ٙdʊ࿁࣬φݬЪ̈

ቇ຅ٙ૶௴ၾࡌҖfۃ٫dӊֻڿਉΫৗ 1mmdఱਗ਼༈Зໄᓒ௴Ցɽɓ໮ϣቛ০ٙЪ
ج ( у #30 19mm, #35 18mm, #40 17mm)dவఱϞνਗ਼࣬φݬ၍ഢࡌҖՑ፿ܓʞ˸ɪd
߰̋ࠇܝᚃΎʚ˸̻๞яච૒ᅵʔᄁٙ၍ኣdఱࢨʔεՑə፿ܓʬiϾܝ٫dӊֻڿਉ
Ϋৗ 0.5mmdఱᓒ௴Ցϣɽɓ໮ቛ০ٙЪج (#30 19.5mm, #35 19mm, #40 18.5mm)d

౬ၑܝdՉ၍ഢஷ༸ٙࡌҖఱʊ༺፿ܓɤ˸ɪəf

封涵運動 (EOM) 對管腔作清創擴展的原理

ྡ B6 ዁Ъφ၌ʊཫᛃٙቛ০d˸ਿ͉ɓםᗙૅᔷe
ᗙΫৗٙᓒ௴ਗЪdఱঐ͂කϵ׉ɷփٙ΢ό࣬၍ஷ
༸d݊܆଄༶ਗ௰މࣿ௷ʘஈ

20 νО࿁࣬၍ӻ୕ੂБ૶௴ၾࡌҖ