Dental Implants Bone Grafting & Ridge Augmentation 2

Question 1

Which term describes the property of a graft material that provides a scaffold along which host bone cells can migrate and form new bone?

Accepted Answer

Osteoconduction

Answer

Osteogenesis

Answer

Osteoinduction

Answer

Osseointegration

Question 2

Which process best describes osteoinduction in bone grafting?

Accepted Answer

Stimulation of undifferentiated mesenchymal cells to become bone-forming cells

Answer

Physical scaffold provided for osteoblast attachment

Answer

Direct bone formation from transplanted living osteoblasts

Answer

Remodeling of mature lamellar bone after graft placement

Question 3

Which growth factor, found in demineralized bone matrix, plays the most critical role in bone regeneration by stimulating osteoblast differentiation?

Accepted Answer

Bone morphogenetic protein (BMP)

Answer

Vascular endothelial growth factor (VEGF)

Answer

Epidermal growth factor (EGF)

Answer

Fibroblast growth factor (FGF)

Question 4

What is the primary goal of socket preservation (ridge preservation) performed immediately after tooth extraction?

Accepted Answer

To minimize alveolar bone resorption following extraction

Answer

To immediately place and stabilize a dental implant

Answer

To treat pre-existing peri-apical infection at the extraction site

Answer

To increase the width of keratinized gingival tissue

Question 5

Which type of GBR membrane requires a planned second surgical procedure for removal?

Accepted Answer

Expanded polytetrafluoroethylene (e-PTFE) membrane

Answer

Collagen membrane

Answer

Polylactic acid membrane

Answer

Polyglycolic acid membrane

Question 6

What is the primary indication for the ridge splitting (ridge expansion) technique in implant dentistry?

Accepted Answer

Widening a narrow but adequately tall alveolar ridge to accommodate an implant

Answer

Treating active peri-implantitis around existing implants

Answer

Increasing vertical bone height in the atrophic posterior maxilla

Answer

Creating soft tissue volume for aesthetic implant emergence profiles

Question 7

What is the primary benefit of incorporating platelet-rich fibrin (PRF) or platelet-rich plasma (PRP) into bone grafting procedures?

Accepted Answer

It concentrates autologous growth factors that may accelerate tissue healing

Answer

It permanently replaces the need for barrier membranes in GBR

Answer

It provides a long-lasting osteoconductive scaffold for bone formation

Answer

It eliminates the need for bone graft particulate material entirely