الفهرس 
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Abstract
chniques veneer
ee i > ncenng of teeth
is rapidly mereasing i popularity Specially laboratory fabricated
1 ““oneated veneers,
hich have received the most attention in the past few years, C
i ‘ars. Ceromer is
ye of the most recent materials that coul er is
0
ld be used in fabrication of
jaminate veneers.
guface treatments of ceromer disks on a
ear bond strength between
opromer and enamel using two resin cemei
nt systems; and to evaluate
ceromer fominatoy ceis clinically using two resin- cement systems after
svelve months.
The laboratory study was Performed by the fabrication of 100
ceromer disks. They were divided into two main groups according to the
resin cement used. The first group was cemented using Variolink II resin
cement. The second group was cemented using 3M resin cement. Before
cementation of the disks each group was further subdivided into five sub-
groups of 10 disks each according to the five different surface treatments
used, The first sub-group was surface treated by Aluminum oxide 504m
at-abrasion, the second sub-group by Hydrofluoric acid 5%
thitd sub-group by Phosphoric acid 37%. The forth and the fifth su
i i oxide 50um
sioups were surface treated by combination of Aluminum
air-abrasion plus
| i i he forth subgroup
raat ee air-abrasion plus phosphoric
’drofluorie acid 5% etching was used or by
“id 37% in the fifth subgroup.