GC EUROPE G-aenial - Manual (Page 5)

5 G-ænial Anterior & Posterior Technical Manual
4.0 composition
G-ænial is classified as an mFR hybrid composite with a combination of 2 types of pre-polymerized
resin fillers. it is composed of matrix, fillers, pigment and photo-initiators. Variations of monomer
concentration, filler types and content between the anterior and Posterior versions make the
material ideally suited to its uses, with more radiopacity in G-ænial Posterior and softer handling in
G-ænial anterior.
table 1: main composition of G-ænial anteror and Posterior
components
G-ænial
anterior
G-ænial
Posterior
methacrylate monomers X X
Pre-polymerized fillers
16-17µ
Silica containing X X
Strontium and lanthanoid
Fluoride containing
X X
inorganic filler > 100 nm
Silica X -
Fluoroaluminosilicate - X
inorganic filler < 100 nm Fumed silica X X
Pigments trace trace
catalysts trace trace
4.1 Filler
two different kind of pre-polymerized fillers are used, offering clinical useful radiopacity while
keeping perfect aesthetics both in anterior and Posterior. the pre-polymerized fillers also
contribute to the low level of shrinkage found with G-ænial. they are produced by polymerizing a
resin matrix in which micro-fillers were incorporated, and then milling the polymerized resin into
particles averaging 16 to 17µ in size.
Fluoroaluminosilicate glass is added to the Posterior formulation for increased radiopacity while
Silica is used in the anterior formulation.
Finally, fumed silica is dispersed between the pre-polymerized fillers and the other inorganic
fillers.
Figure 1: Sem image of the filler system in G-ænial anterior and Posterior. magnification 2,500
Prepolymerized Fillers
anterior Posterior
Fluoro-alumino-silicate
Silica