PENGARUH POTASSIUM PEROXYMONOPERSULFATE TERHADAP PERUBAHAN WARNA BASIS GIGI TIRUAN THERMOPLASTIC NYLON
| Main Authors: | , VITA LEVINA HIDAYATI, , drg.Titik Ismiyati, M.S., SpPros(K) |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2013
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/122390/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=62492 |
Daftar Isi:
- Thermoplastic nylon denture bases are derivatives from diamine and dibasic acid monomers that has ideal features as dentures for it�s great flexibility and aesthetics, also it doesn�t cause allergies. Thermoplastic nylon has a high water absorption properties that can cause discoloration. Potassium peroxymonopersulfate is present as a component of a triple salt, free flowing, white granular and soluble in water. Potassium peroxymonopersulfate are active ingredients of the alkaline peroxide denture cleanser. Chemically, potassium peroxymonopersulfate are derivatives of hydrogen peroxide, which breaks down in water into free radicals (HO2 * and O*) that damages the pigment color. This study is aimed to determine the color stability of thermoplastic nylon denture againts the immersion time in potassium peroxymonopersulfate. Subjects of this study were 28 samples of thermoplastic nylon, rectangular shaped, with dimensions of 25 x 15 x 2.5 mm and were divided into 4 groups, containing 7 samples each. The first group, as control was immersed in aquadestilata. The second group was immersed in denture cleanser solution containg potassium peroxymonopersulfate for 12 hours. The third group was immersed in denture cleanser solution containg potassium peroxymonopersulfate for 24 hours and the fourth group was immersed in denture cleanser solution containg potassium peroxymonopersulfate for 36 hours. The absorbance changes of all samples were measured with spectrofotometer. Data obtained were then analyzed using ANOVA followed by Tukey's test. Results showed that there were significant differences in color stabilty of thermoplastic nylon on immersion of denture cleanser solution containing potassium peroxymonopersulfate (p <0.05). The conclusion of this study is there were differences in color stability of thermoplastic nylon denture base on immersion of denture cleanser solution containing potassium peroxymonopersulfate, but immersion within 12 hours are still esthetically safe.