Biomaterials – Applications in Dental Surgery

From WikiLectures

Definition[edit | edit source]

Any material put into/interact with living organism with the objective to restore, augment or replace the function of the organism. Biomaterials do not have to be biomimetic, but to restore function.


General Classification[edit | edit source]

Metals[edit | edit source]

  • Co-Cr alloys
  • Stainless Steel
  • Gold
  • Titanium alloys
  • Vitalium
  • Nitinol

Applications[edit | edit source]

  • Prosthodontics
  • Orthopaedics
  • Fracture fixation


Ceramics[edit | edit source]

  • Zirconia
  • Allumina
  • Calcium Phosphate
  • Pyrolytic Carbon

Applications[edit | edit source]

  • Orthopaedics
  • Heart Valves
  • Dental Reconstruction


Coatings[edit | edit source]

  • Bioglass
  • Hydroxyapatite
  • Diamond-like carbon
  • Polymers

Applications[edit | edit source]

  • Orthopaedics
  • Contact lenses
  • in-growth


Polymers[edit | edit source]

  • Silicones
  • Gore-tex
  • Polyurethanes
  • Polyethylanes

Applications[edit | edit source]

  • Orthopaedics
  • Catheters
  • Vascular Grafts


Hydrogels[edit | edit source]

  • Cellulose
  • Acrylic co-polymers

Applications[edit | edit source]

  • Drug Delivery
  • Vitreous implants
  • Wound Healing


Resorbables[edit | edit source]

  • Polyglycollic acid
  • Polylactic Acid
  • Polyesters

Applications[edit | edit source]

  • Sutures
  • Drug delivery
  • In-gowth
  • Tissue engineering



Classification according to bio-compatibility.[edit | edit source]

  • Bio-tolerated = no rejection but fibrotic border
  • Bio-inert = osteointigration at bone implant contact. Eg Titanium coated with zirconium oxide
  • Bio-active = induce changes in body.
  • Biotoxic = not used.