Abstract
Aims to evaluate some properties of temporary soft liner
(Bony plus) and permanent soft liner (vertex) before and
after adding propolis extracts to it. Materials and
methods ethanolic extracts of propolis(ethanolic extract
of propolis) was added to temporary soft liner (Bony
plus), and glycolic extract of propolis(glycolic extract of
propolis) was added to permanent soft liner (vertex), then
the volumetric dimensional changes, hardness, water
absorption and solubility were evaluate, the total samples
were (128). Results showed the presence of significant
diffrence in the Hardness, Water absorption and
Solubility of the modified soft liners (After adding
propolis to it), and there was no significant diffrence in
the volume of the soft liners before and after adding
propolis.Conclusions the volumetric changes of modified
and control group of permanent soft liner (vertex) was no
significantly different, The modification type (for both
permanent and temporary) of soft liner was significantly
softer than the control group along the period of storage
(1 month) and the modification type (for both permanent
and temporary) of soft liner was significantly have more
water absorption and solubility than the control group
along the period of storage (1 month).
