Distraction Osteogenesis Question And Answers

Distraction Osteogenesis

Distraction Osteogenesis Definition

Distraction osteogenesis: It is a technique by which lengthening of a bone by new bone formation occurs in between the 2 osteotomies distracted fragments

Distraction Osteogenesis Short Essays

Question 1. Distraction osteogenesis.
Answer:

Distraction Osteogenesis of Definition:
Distraction Osteogenesis Short Essay Question And Answers

It is a technique by which lengthening of a bone by new bone formation occurs in between the 2 osteotomised distracted fragments

Distraction Osteogenesis of Advantages:

  • Safer
  • Decreased morbidity
  • Decreased operative time
  • Conservative
  • Can be done in younger patients
  • No bone grafting needed
  • Growth of bone & soft tissue

Distraction Osteogenesis Phases

Read And Learn More: Oral and Maxillofacial Surgery Question and Answers

Distraction Osteogenesis of Indications:

  1.  Mandibular:
    • Microsomia
    • Syndromes
    • TMJ conditions
    • Trauma
    • Deficiencies
  2. Maxillary:
    • Cleft lip/ palate
    • Deficiency
    • Palatal expansion
  3. Craniofacial:
    • Syndromic condition

Distraction Osteogenesis of Steps:

  • Surgical fracture
  • Controlled segmental movement
  • The bone formation between segments
  • Soft tissue remodelling

Distraction Osteogenesis Phases

Distraction Osteogenesis of Principles:

  1.  Bone cut:
    • Done along with preserving the blood supply
  2. Latency:
    • 5–7 days in older patients
    • 1–2 days in younger patients
  3.  Rate:
    • It refers to the amount of separation Usually needed 1 mm per day
    • Younger patients: 1.5-2 mm per day
    • In necrosed patients: 0.5-1 mm per day
  4. Rhythm:
    • Refers to frequency of application of force
    • 2 times a day
  5. Consolidation phase:
    • 4–6 weeks
  6. Retention phase:
    • Refers to the removal of appliances & stabilization of jaw

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