Comčrosites
Chemically bonded mixture of organi matrix (resin) ane inorganic filler    ^
Composition
Organic phase - resin
Bowen's monomer - bisfenol A a ;ly c idylmetacry late- Bis GM A Other dimetacrylate UDMA TEGMA
ComDOsition
Inorganic phase - filler
Milled qua B aryumaluminium Silica Prepolymer
lass
TA
Composition
Initiatory system initiator a activator
Stabilizers Pigments UV absorbers Antioxidants
Curing of
Polymerization Activator
Iniciátor
Splitting of double bonds Creation of the polymer network
omposites
Composite
sD Chemically curin sDLight curing sD Dual curing (3D Warm curina
^cording to mode
^rr\
Light Polymerization
Monomer
Polymer
Classification according to size of fillers
Microfillers
Hybrid
Use of Composites
Aesthetic restorations - class III., IV., V., I., II
Bonding to the tooth structures
Enamel
Dentin
o  More water and organic substances o  Low surface energy                   ^
o  Tubular liquid o  Comunication with the pulp chamber o Smear layer
Bonding to the tooth structures
\ Dentin
Removing of the smear layer
Acid etching
Konditioner
Demineralization
Increase of the surface energy
Phosphoric acid
P nine r
Opening og the collagen network of dentin
Penetrates into the retentive^nattern in enamel and the collagen network of dentin (hybrid layer)                    1
Glasionorrter cements
Composition
Powder:   asluminiumsilicate glass
Tekutina:
Polyacrylic acid or polymaleic acid
Tartaric acid
Water
fGIC
Aluminium calcium polyacryla
Properties
>  Chemical fixation to tooth structure
>  Fluoride release
>  Favorable thermal expansion
>  Acceptable aesthetics
GIC accordJna to mode of
curi n
Chemically curing (acid - base reactioír
- conventional
- high strength
Light curing (acid -base reaction +
)olvmerization of the resin)
GIC - irtd i cation
Class V, small class L, class III
Base - sandwich fillings
Luting cements
Root canal fillin
Hand mixin
Capsulated