| Summary: | Post restoration is one way to keep the teeth in the oral cavity . However,
these treatments often fail, such as fractures, caused by the post is less elastic in
the weight-bearing chewable or there is great variation flexural modulus. As an
option, namely the post restoration with non metallic materials, especially fiberreinforced
composite (FRC). FRC has physico-mechanical nature that almost
resembles dentin , particularly flexural modulus similar to dentin (20 GPa). FRC
post consists of prefabricated post that the post produced by manufacture and
fabricated post that was homemade post. The fabricated FRC post system has
advantages over prefabricated because the post can be adjusted to the shape of the
root canal. The purpose of this study was to determine the flexural modulus effect
of the number of fiber layers of fabricated FRC restorations post and an increase
in flexural modulus with increasing number of layers of fibers on fabricated FRC
post.
The type of research is experimental laboratories research with the postonly
control group design that uses 6 samples for each treatment group are the
number of layers 1, 2 and 3 fiber fabricated post groups. The post materials
consists of polyethylene fiber and flow able composite. The fabricated post was
made by using molds of glass slab with a thickness of 2.0 mm, length 5 cm and
width 2.5 cm. Irradiation is performed for 20 seconds. After that, bending test to
see flexural modulus results and observed with SEM. Results of research
conducted homogeneity and normality test, Finally analyzed with the statistical
test variant analysis (ANOVA) followed by LSD test .
The results showed that the FRC fabricated with 3 layers of fibers has the
highest average flexural modulus and there was a significant difference in the
average flexural modulus of fabricated FRC post (P <0.05). SEM test results show
that the fiber is embedded in a composite matrix. This indicates that the FRC post
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