Composites / dental implant courses

Composite
& its
recent advances
www.indiandentalacademy.com
INDIAN DENTAL ACADEMY
Leader in continuing Dental Education

contents
• Introduction
• Evolution
• Definition
• Composition
• Classification
• Manipulation
• Biocompatibility of composites
• Survival ability of composites
• Recent advances of composites
• references
• Conclusion

Explore the world of
compositeswww.indiandentalacademy.com

www.indiandentalacademy.comwww.indiandentalacademy.com
Indian Dental academy
• www.indiandentalacademy.com
• Leader continuing dental education
• Offer both online and offline dental
courses

Definition
• Skinners
• Philips & lutz
• macbae

1950 19701960 2010200019901980
Original
Development
SELF-CURED
UV-CURED
VLC-CURED
MACROFILL
Self-Cured
Composites
MIDIFILL
Composites
MICROFILL
Composites
MIDIFILL
Composites
Midi-HYBRID
Composites
Unbonded
Composites
Acid-Etching and
Enamel Bonding
Dentin-Bonded
Composites
3c, 2c, 1c
Dentin Bonding System
[QTH, PAC, Laser, LED]
COMPOSITE REFINEMENTS
Reviewing the last 50 years.
FLOWABLES
PACKABLES
Nano-
HYBRID
COMPOSITE
CONTROLLED
SHRINKAGE
Prototypes
Mini-HYBRID
Composites

composition

Resin matrix

• Dispersed phase

Coupling agents

Initiators & activators

• Inhibitors
• Optical modifiers

classification
M
A
C
R
O
M
I
C
R
O

• According to skinners
• According to philip & lutz
• According to bayne & heyman
classification

Traditional composites

Small particle filled
composite

Microfilled composites

Modes of increasing filler
load

Hybrid composite

C factor

Protocol for composite
manipulation

Acid etching

Bonding agents

Curing /polymerization
• Chemical cure
• Light cure
• Dual cure

Curing techniques

continuous

discontinuous
Pulse delaywww.indiandentalacademy.com

Factors affecting curing
• Exposure
• Intensity
• Temperature
• Distance & angle
• Angle & path of
light

• Thickness of resin
• Air inhibition
• Shade of resin
• Type of filler
• Amont of
photoinitiator

Curing lamps
qth pac
laser led

Survival ability of
composites
composites

Protection theory of
composite wear
Micro protection macroprotectionwww.indiandentalacademy.com

Biocompatibility of
composites

Good morning

Why do we need
advances

Composite diaspora
Packable composite
Flowable composite
Nanocomposite
Composite inserts
compomers
Smart composites
Giomers

Packable composites

Ideal requirements
• Nonsticky
• Viscoelasticity
• Shear strength
• No cure access
problems
PRIMM CONCEPT

solitaire
• Resin matrix
• fillers

surefil
• Resin matrix
• Fillers
• Excellent
packing
characteristics

properties
• Fracture
toughness
• Flexure strength
• Flexure modulus

• Hardness
• Depth of cure
• Polymerization
shrinkage
• radiopacity

Flowable composites

Flowable Composites
• Marketed
– class 1, 3, 5
– liner
• Particle size
similar to hybrid
composites
• Reduced filler
content
– reduces viscosity
0
10
20
30
40
50
60
70
80
WeightPercent
Percent Filler Loading
Aeliteflo
FloRestore
Revolution
Ultraseal+
Prodigy
Bayne, JADA 1998
Click here for abstractwww.indiandentalacademy.com

Flowable Composite
• Mechanical properties
– inferior to hybrids
0 0.5 1 1.5 2 2.5
MPa
Fracture Toughness
Prodigy
Ultraseal +
Revolution
FloRestore
Aeliteflo
0 50 100 150 200
MPa
Flexure Strength
Bayne, JADA 1998
Click here for abstractwww.indiandentalacademy.com

Flowable Composites
• Clinical applications
– preventive resin restorations
– small Class 5
– provisional repair
– composite repair
– liners??

Use of flowable as a liner
Operative dentistry 29 ; 162-167www.indiandentalacademy.com

FLOW BUTTONS
(area calculated in mm2
)
Enamel
Dentin
Flowable
Composite
Composite
Second generation flowable

compomers
Composition
Tcb ( a diester of
HEMA & BTC)
Reactive glass
powder

dyract
• Resin matrix
• Udma
• Tcb ( a diester of
HEMA & BTC)
• fillers

Dyract AP
• Modified organic
matrix
• fillers

F 2000
• Resin matrix
• Three monomers
• CDMA
• GDMA
• High molecular
mass hydrophillic
polymer
• fillers

compoglass
• Resin matrix
• fillers

properties
• Setting reaction
• Adhesion
• Reinforced zone
• Strength
• Wear
performance

• Flouride release
• Resrevoir
• Compoglass 50%
more
• Optical
properties
• Dyract AP 5
• Enamel 3.5
• Dentin 2

Laboratory composite resins
• History

First generation Second
generation
Resin
matrix
Filler
Flexural
strength
Elastic
modulas
66%
33%
60-80 mpa
2000-3500 mpa
33%
66%
120-150 mpa
8000-12000mpa

First generation Second
generation
Wear
resistance
Polymeriz
ation
shrinkage
uses
high
high
low (similar to
enamel)
minimal

Intermediate laboratory
composite resins
• Difficult to
categorise
• Metal –resin
bonding
• Mechanical
• chemical

Smart composites
• Ariston 1998
(ion releasing )
New developed
alkaline
glass
Filler content -80%
60 %vol
Flouride release

Antibacterial composite
• Alteration to
resin matrix
12-
methacryloxydodecyl
pyridinium
bromide(MDPB)

Alteration in filler particle

ormocers

Midi-Hybrid70% 30%
100
10-1
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-10
10-2
METERS
Mini-Hybrid
1 m 1 cm 1 µm1 mm 1 nm1 dm 1 Å
Standard
Dentistry
Reference
Mega-
Filler
Macro-
Filler
Midi-
Filler
Mini-
Filler
Micro-
Filler
Nano-
Filler
0.011 µm 0.110100 0.001 0.0001
IPS Target
for Wear
Resistance
Nano-Hybrid
Atomic
DimensionsBacteria
Dentinal Tubule
Width
NANOCOMPOSITES
What is all this “nano” stuff all about?

nanocomposites

Low shrinkage composite

Composite inserts
• Size 0.5-2
mm(megefillers)
• Shapes
• Advantages
• manipulation

giomer
• S-prg
• F-prg
• Class 1 class v
• Shofu beautiful

Selecting a Brand
• Contents of kit
– shades
– bonding agent
– unit-dose compules vs syringes
• Indications
– anterior, posterior, both?
• Cost of kit
– refills

references

• science of dental materials
annusavice
• Art and science of coservative
dentistry sturdevent
• Tooth colored restorative materials
albers
• Compomers dental
materials23(2007)615-612
• The new posterior resins jada vol131
march 2000
• Antibacterial properties of resin
composites dental materials 19
(2003)449-457

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