CHAPTER 1 & 2 Introduction & Anatomical Considerations

CHAPTER 1 & 2 Introduction & Anatomical Considerations

1. AIM

   • 1. Maintain the pulp vitality
   • 2. Preserve & maintain the tooth
     • from damage & necrotic pulp
     • before dev to
       • periapical abcess
       • or bone destruction
   • 3. Preserve & restore the tooth
     • with failed endo ttt previously

2. INDICATIONS

   • 1. Teeth with pulpal &/or periapical pathology
   • 2. Healty teeth that need endo ttt
     • to provide space for intraradicular post to retain a restoration
   • 3. Teeth retained to support over-denture

3. CONTRAINDICATION

   • 1. Non-restorable teeth
     • to be functionally
     • & esthetically acceptable
   • 2. Insufficient periodontal support
     • to retain the tooth
   • 3. Non-strategic tooth
     • not in occlusion
     • & not needed
   • 4. Vertical root fracture
     • hopeless prognosis
   • 5. Unfavorable anatomic conditions
     • sclerosed / severely curved canals
     • apical surgery also inadvisable
   • 6. Massive resorption
     • internal & external resorption
   • 7. Accidental perforation
   • 8. Complete crown fracture
     • when root extrusion cannot be done

4. Anatomical Considerations

   • Normal Anatomy
   • Types of roots
     • Type I
       • mature (closed apex) & straight root
     • Type II
       • mature but not straight root
         • slightly curved
         • severely curved
         • dilacerated
         • bayonet
     • Type III
       • Immature root (open apex)
         • tubular
         • blunderbuss
   • Types of root canal system (6 types)