Lecture 1

Question 1

define biomaterials

Answer 1

are man made materials designed and applied in clinical dental practice

can be looked at the “material science” perspective which is a field of study that looks at how the body interacts with the mateiral (how it corrodes it, how it wears it down)

OR look at biocompatibility–>how it reacts with the body (corrosion products, unreacted monomers, etc), allergic rxn, cell toxicity

Question 2

what are the classes of dental materials?

Answer 2

ceramics
glasses
polymers
composites
metals and alloys

Question 3

what are some materials used in general dentistry?

Answer 3

• Impression materials (eg. Alginates and polyvinyl siloxane)
• Dental Stone
  
  • > Sometimes you want a soft material if someone has loose teeth so you don’t pull them out

Question 4

what are some materials used in operative dentistry?

Answer 4

• dental amalgam
• dental composite fillings
• glass ionomers
• adhesives
• compomers

Question 5

what are some materials used in pediatric dentistry?

Answer 5

• zinc oxide eugenol cement
• dental amalgam
• glass amalgam
• copalite varnish
• dental resins (filled/unfilled)

Question 6

what are some materials used in endodontics?

Answer 6

• impressions materials
• gutta percha
• ZOE cement
• epoxy resin sealers
• mineral trioxide aggregate
• ceramics crowns
• dental amalgum

Question 7

what are some materials used in periodontics?

Answer 7

• sutures
• membranes
• dressing materials
• grafts

Question 8

what are some materials used in orthodontics?

Answer 8

Impression materials
Wires
Brackets 
Must etch before you apply the bracket (and have a clean surface)
Adhesives
Bands
Rubber bands around brackets
Also bands at the back molar that is metal fixes brace
Can also have ceramic brackets

Question 9

what are some materials used in prosthodontics and implantology?

Answer 9

cements
waxes
impressions materials
stones
resins
crowns
implants

Question 10

what are some materials used in oral and maxillofacial surgery?

Answer 10

Sutures
Bone grafts (alloplastic materials)
Bone screws and plates