canal, lecture, notes, preparation, root, techniques

Objectives of Root canal preparation
  • Remove remaining pulp tissue
  • Eliminate microorganism
  • Remove debris
  • Shape the root canal
  • So that root canal system can be cleaned and filled

Requirements of Root canal preparation

  • Prepared canal should include the original canal
  • Apical constriction should be maintained
  • Canal should end in an apical narrowing
  • Canal should be tapered from crown to apex
  • Preparation should be undertaken with copious irrigation
  • The final length of the preparation should not be reduce by treatment
Root canal preparation techniques
Apical to coronal
Coronal to apical
1.Standardized technique
2. Step back technique
3. Balanced forces technique
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[فقط الأعضاء المسجلين والمفعلين يمكنهم رؤية الروابط أو شكرا] Apical to coronal

1 Step down technique
2.Double flared technique
3. Crown down pressure less technique
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[فقط الأعضاء المسجلين والمفعلين يمكنهم رؤية الروابط أو شكرا] Coronal to apical




Standardized technique
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[فقط الأعضاء المسجلين والمفعلين يمكنهم رؤية الروابط أو شكرا] Standardized technique
  • Can be use for straight tiny canal
  • Unsuitable for curve canals
  • Common problems

Ledging
Zipping
Elbow formation
Perforation
Loss of working length


Step back technique
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[فقط الأعضاء المسجلين والمفعلين يمكنهم رؤية الروابط أو شكرا] Step back technique
  • Overcomes procedural errors of ST
  • Suitable for Slight to moderate curve canals
  • Not suitable for severely curve canals
  • Can be improve by
Specific filing technique
Non-cutting tip
Flexible files

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[فقط الأعضاء المسجلين والمفعلين يمكنهم رؤية الروابط أو شكرا]


[Only registered and active users can see links. or Thanks]
[فقط الأعضاء المسجلين والمفعلين يمكنهم رؤية الروابط أو شكرا]





المصدر: Egypt Dental Forums 4Drs - من قسم: Endodontics


Root canal preparation techniques - ppt & pdf lecture notes lecture notes preparation root