OMFS: Bone Grafts & Implantology

Question 1

what are 4 main ways of causes of bone loss?

Answer 1

1. congenital
2. traumatic
3. pathology
4. natural

Question 2

types of bone graft?

Answer 2

• autogenous
• xenograft
• allograft
• Alloplastic

Question 3

what is the principles of bone grafting?

Answer 3

• osteoconduction (scaffold is needed to support bone forming cells)
• osteoinduction (osteogenesis induced through recruitment of cells for bone formation)

Question 4

what is a zygomatic implant?

Answer 4

specialized dental implants used in cases of severe maxillary bone loss, where traditional dental implants cannot be placed due to inadequate bone structure

These implants are anchored in the zygomatic bone (cheekbone) to provide support for dental prostheses, enabling individuals with significant bone loss to regain the function and aesthetics of their teeth.

Question 5

indications for zygomatic implants?

Answer 5

• severe maxillary atrophy
• sinus pnumotization (paranasal sinus increase in volume)
• avoid harvesting of bone graft
• hemimaxillectomy