DENT
1200
Dental
Materials
I
DENT
1200
Dental
Materials
I
Lesson
2
Composite
Lesson
2
Composite
Main
Objective
of
Restorative
Dentistry
Main
Objective
of
Restorative
Dentistry
•
Restore is to replace or bring back to
natural appearance and function.
•
Esthetics means pleasing in
appearance.
RESTORATIONS
RESTORATIONS
•
DIRECT
Done in mouth
Amalgam-
______
Composite-
______
GI-
____________
•
INDIRECT
Done on cast in lab
FIXED REMOVEABLE
Crown full denture
Bridge partial denture
Implant
Inlay,onlay
veneer
(casting)
Composite
Esthetic
Composite
Esthetic
VOCAB
VOCAB
•
Bonding
http://ww
w.ada.org/public/m
edia/videos/minute
/cosmetic_bonding
_broadband.wmv
Fracture
8.
Acid
Etch
8.
Acid
Etch
•
After liner is placed- tooth is etched
with phosphoric acid for 1 minute to
create tags for micromechanical
retention
tags
ADA
on
Composite
ADA
on
Composite
•
http://www.ada.org/public/media/vid
eos/minute/cosmetic_composite_bro
adband.wmv
1.
4
Brand
names
1.
4
Brand
names
•
Complete list at
www.dentalcomposites.com
•
Adaptic by Johnson & Johnson
•
Concise by 3M/ESPE
•
Fuji by GC America
•
Prisma by LD Caulk/Dentsply
•
Heliomolar by Vivadent
2.
Use
and
forms
2.
Use
and
forms
•
Composite resin
cement- perm
luting
•
Direct esthetic
perm rest ( ant &
post)
•
2 paste ( LC or self
cure)
•
Single paste in
syringe or compule
that goes in a
syringe ( LC only)
2.
Flowable
Composites
2.
Flowable
Composites
2.
Composition
2.
Composition
•
Resin Matrix- fluid base, BISGMA,
dimethacrylate
•
Fillers- quartz, glass, silica
microfilled, macrofilled, hybrid
•
Coupling agent- silane
3.
Mix/Dispense
3.
Mix/Dispense
•
Select shade before prep
•
Prep
•
Liner if needed- no ZOE
•
Matrix- ant/ celluloid post/ toff
•
Etch rinse Prime dry Adhesive LC
•
Composite- LC
3.
Mix/Dispense
3.
Mix/Dispense
•
2 paste- mix equal amounts
•
Dispense- pass syringe or extrude
sm amount from syringe onto pad
•
In general- keep covered until use
4.
Finish
4.
Finish
•
Remove
excess/flash
scalpel
•
Trim with
sandpaper strip,
sandpaper disk on
mandrel or
diamond finishing
bur
4
Finishing
4
Finishing
4.
Post
Op
4.
Post
Op
•
Material is fully set
•
Be careful if area is numb
•
Tooth may be temperature sensitive(
cold)
5.
Shelf
Life
5.
Shelf
Life
•
Follow manufacturers expiration date
•
Shorter shelf life/ use life than
amalgam
•
Store in refrigerator
6.
Cost
6.
Cost
6.
Cost
6.
Cost
7.
Light
Cure
VS
self
cure
7.
Light
Cure
VS
self
cure
•
Polymerization- chemical set
9.
Safety
9.
Safety
•
Do not allow acid
to touch patient
tissues!!!!!
•
Do not look into
the curing light!!!!
•
Shields are
available
10.
Vocab
10.
Vocab
•
Most contained in presentation
•
Celluloid Strip/ Mylar strip- anterior,
replaces matrix, keeps materials
from touching adjacent teeth
Shade
Guide
Shade
Guide
The
End
The
End