PENGARUH DERAJAT KEASAMAN SALIVA TERHADAP PERUBAHAN WARNA SELAMA PERENDAMAN 48 JAM PADA BASIS GIGI TIRUAN LEPASAN THERMOPLASTIC NYLON
Thermoplastic nylon which is used as a removable denture base material will show unexpected discoloration after a few months. This discoloration somehow will affect the satisfaction and performance of prosthesis. The purpose of this study is to determine the effect of acidity saliva on color changes...
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Main Authors: | , |
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Format: | Theses and Dissertations NonPeerReviewed |
Published: |
[Yogyakarta] : Universitas Gadjah Mada
2014
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Subjects: | |
Online Access: | https://repository.ugm.ac.id/132768/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=73311 |
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Institution: | Universitas Gadjah Mada |
Summary: | Thermoplastic nylon which is used as a removable denture base material
will show unexpected discoloration after a few months. This discoloration
somehow will affect the satisfaction and performance of prosthesis.
The purpose of this study is to determine the effect of acidity saliva on
color changes for 48 hours on removable dentures base of thermoplastic nylon.
This study used 15 thermoplastic nylon square plates which had a size of
10x10x1 mm. The samples were divided into three groups, each group consist of
5 plates thermoplastic nylon. Each group sample was immersed in artificial saliva
fluids, group I in the saliva pH 4, group II in the saliva pH 7, and group III in the
saliva pH 9, in 48 hours. After soaking in all of the sample groups, and then the
color were measured with UV-Vis spectrophotometer pharmaspec, Shimadzu,
Kyoto, Japan. Data were analyzed using one-way ANOVA.
The result showed that: There was lowest average reading in color changes
of thermoplastic nylon after immersion in the saliva pH 4 and there was no
significant difference in color changes of thermoplastic nylon after immersion in
the saliva pH 4 and pH 7 and pH 9 after 48 hours (p>0.05). The conclusions of
this study were there was no significant difference in color changes of
thermoplastic nylon after immersion in the saliva pH 4 and pH 7 and pH 9 after 48
hours. |
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