Dental Implants Osseointegration & Healing

Question 1

Osseointegration was first scientifically described by which researcher?

Accepted Answer

Per-Ingvar Brånemark

Answer

Carl Misch

Answer

Andre Schroeder

Answer

William Linkow

Question 2

Osseointegration is best defined as:

Accepted Answer

Direct structural and functional connection between living bone and the implant surface without intervening connective tissue

Answer

Fibrous tissue encapsulation of the implant

Answer

Bone growth over the implant crown

Answer

Calcium deposition on the implant surface only

Question 3

The healing time for osseointegration in dense cortical bone (Type I) compared to softer bone (Type IV) is typically:

Accepted Answer

Longer in Type I due to reduced vascularity

Answer

Shorter in Type I due to denser bone

Answer

The same regardless of bone type

Answer

Longer in Type IV due to faster bone metabolism

Question 4

Which cell type is primarily responsible for new bone apposition on the implant surface during osseointegration?

Accepted Answer

Osteoblasts

Answer

Osteoclasts

Answer

Fibroblasts

Answer

Neutrophils

Question 5

Micro-movement threshold that compromises osseointegration is generally accepted to be:

Accepted Answer

Less than 150 microns

Answer

Less than 50 microns

Answer

100–150 microns

Answer

Greater than 300 microns

Question 6

Secondary stability (biological stability) in implant healing refers to:

Accepted Answer

Bone apposition and remodeling that increases stability over time

Answer

The initial mechanical grip of the implant

Answer

The stability provided by the final crown

Answer

Stability measured immediately after surgery