Distraction Osteogenesis Question And Answers

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:

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 remodeling

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 the jaw.