PENGARUH PERENDAMAN DALAM LARUTAN ASAMSITRAT pH 3 TERHADAP KEBOCORAN MIKRO RESTORASI RESIN KOMPOSIT BULK-FILL KAVITAS KELAS I
Microleakage on resin composites restoration is a gap formed between cavity wall and the restoration caused by contraction during polymerization and aging process. Acid is one of much kind of exposures inflicting aging and resin composites degradation process. Bulk-fill resin composites are one kind...
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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/132041/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=72557 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | Microleakage on resin composites restoration is a gap formed between
cavity wall and the restoration caused by contraction during polymerization and
aging process. Acid is one of much kind of exposures inflicting aging and resin
composites degradation process. Bulk-fill resin composites are one kind of resin
composites that are famous recently by the 4 mm depth of cure in single
increment and it has lower polymerization shrinkage compared by conventional
resin composites. The information about effect of acid on microleakage of bulkfill
resin composites restoration has not been well provided so that this study
aimed to determine the effect of immersion in citric acid solution with pH 3 to the
microleakage of class I cavity bulk-fill resin composites restoration.
This study used 20 class I cavity prepared first maxilla premolars
(diameter: 4 mm, depth: 4mm) which filled by bulk-fill composites in single
increment. The sample group was divided into two groups of ten which group I
immersed in artificial saliva for 24 hours and the group II was immersed in citric
acid solution with pH 3 for 15 days. Measurement of microleakage in this study
used active staining methods, which specimens immersed in 2% methylene blue
and then centrifuged in 3000 rpm for 5 minutes. Observation firstly done by
dissecting the tooth longitudinally performed by Isomet Low Speed Saw and then
observed by stereomicroscope with 50 times magnification.
The study results showed that there is a significant difference of mean rank
between the two sample groups (p<0,05), group I (7,65) and group II (13,35).
Based on these results, a conclusion could be withdrawn that citric acid with pH 3
solution could cause microleakage on bulk-fill resin composite class I restoration.
Keywords: microleakage, citric acid, degradation, aging |
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