Effect of metal oxides on some mechanical properties of clear acrylic specific for artificial eye
DOI:
https://doi.org/10.32828/mdj.v13i1.812Keywords:
ocular prosthesis, transverse strength, hardnessAbstract
Aim: the study was undertaken to assess the effect of various metal oxides on some
mechanical properties of acrylic resin.
Materials and methods: Two hundred acrylic specimens were constructed in total.
There were two tests utilized (transverse and hardness). For each test, there were
nine experimental groups according to the type of metal oxides used. The
specimens without use any of metal oxides were considered as control. For
transverse test, the specimens were exposed to loads until fracture. For hardness
test, the specimens were tested; values were obtained. All data were analyzed and
compared using ANOVA and tukey tests.
Results: the addition of metal oxides at different concentrations enhanced the
transverse strength of acrylic. Significant differences were statistically found
between experimental groups and control group (P<0.001); among experimental
groups (P<0.001). For hardness test, there was a slight increase in the mean values
of hardness of clear acrylic as the concentration of metal oxides increases. No
significant differences were statistically found among experimental groups
(P>0.05); between experimental groups and control group (P>0.05) except there
was significant difference between control and 5% TiO2 group (P<0.05).
Conclusion:The incorporation of metal oxides improved the transverse strength and
surface hardness of acrylic resin.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
