PERBEDAAN KEBOCORAN MIKRO SEMEN IONOMER KACA MODIFIKASI RESIN DAN KOMPOMER SEBAGAI CERVICAL BARRIERPADA WALKING BLEACH DENGAN HIDROGEN PEROKSIDA 35%
The walking bleach is an intra coronal bleaching technique which is performed by application of a paste containing 35% hydrogen peroxide (Opalesence endo, Ultradent). Application of cervical barrier was required to reduce the risk of external resorption. Microleakage is a dynamic factor occurring at...
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| Main Authors: | , |
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| Format: | Theses and Dissertations NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2013
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/127549/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=67809 |
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| Summary: | The walking bleach is an intra coronal bleaching technique which is
performed by application of a paste containing 35% hydrogen peroxide
(Opalesence endo, Ultradent). Application of cervical barrier was required to
reduce the risk of external resorption. Microleakage is a dynamic factor occurring
at tooth-restoration interface. RMGIC and compomer are commonly used as
cervical barriers. The aim of this study was to compare the microleakage of
RMGIC (Fuji II, LC) and compomer (Dyract flow,Dentsply) as a cervical barrier.
A total of 30 human mandibular premolars were used in this study. The
crown were sectioned horizontally at 4 mm from CEJ and the roots 4 mm from
CEJ. The pulp chamberwas preparedconically where the cross cut was oval shape
with 4 cm length and 3 cm width coronally and 3 cm length and 2 cm width
apically. Fifteen teeth were treated with RMGIC and 15 teeth with compomer.
The teeth were ramdomly divided into 6 groups of 5 premolars. Group A1
RMGIC without bleaching procedure, Group A2 RMGIC with 1 times bleaching
procedure, A3 RMGIC with 3 times bleaching procedure, group B1 compomer
without bleaching procedure, B2 compomer with 1 times bleaching procedure,
and B3 with 3 times bleaching procedure. Hydrogen peroxide was placed in
access cavity and teeth were restored with Cavit (ESPE Dental, Seefeld,
Germany), incubated at 37
o
C at a relative humidity with 100%. . The bleaching
agent were replaced every 3 days. All the tooth surface were covered by two layer
of nail varnish, immersed in 2% metylen blue for 24 hours. Microleakage was
evaluated using electron microscope. Statistical analysis were performed using 2
way Anova followed by LSD test.
The result showed that there were significant different on the microleakage
between RMGIC compare to compomer of control group and one time bleaching
(A1 and B1) and there were no significant different on group with three times
bleaching. |
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