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Ekiyantini Widowati
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Dentistry

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BAHAN BONDING DAN KAMFOROQUINON MAMPU MENINGKATKAN KEKERASAN RESIN KOMPOSIT SINAR-TAMPAK YANG MENGALAMI KEMAMPUAN MENGALIR: ABILITY OF BONDING AGENT AND CHAMPHOROGUINONE TO INCREASE VISIBLE LIGHT COMPOSITE RESIN HARDNESS IN FLOW READILY Ekiyantini Widowati; Dwi Warna Aju Fatmawati
Dentika: Dental Journal Vol. 16 No. 2 (2011): Dentika Dental Journal
Publisher : TALENTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (141.792 KB) | DOI: 10.32734/dentika.v16i2.1838

Abstract

Bonding agent is a resin matrix that containing BIS-A-GMA without or with little filler. They bounded each other in enamel micromechanically in one side and chemically in the other side. Champhoroquinone is a photo-initiator of visible light composite resin (VLCR). It is light yellow fine powder form. Both of them help polymerization process of VLCR. The aim of the study was to know the ability of bonding agent and champhoroquinone to increase visible light composite resin hardness in flow readily. This study was laboratory experimental. The subjects were divided into 3 groups, they were champhoroquinone group (CPG), bonding group (BG), and control group (CG). Every group consisted of 24 specimens. VLCR paste was exposed under light of dental unit lamp for 2 minutes. After that, VLCR paste was added with bonding and champhoroquinone, and was mixed until homogen. Then, the mixed was taken into mould space (5 mm in diameter and 2 mm in thickness), was compressed and flatened, and was cured for 40 seconds. All samples were tested the hardness by Vikers Hardness Number (VHN). All data were analyzed by Kruskal Wallis Test and continued by Mann -Witney-U Test. The result showed that the mean of BG (56.96 VHN) was higher than CG (55.11 VHN) and CPG (51.19 VHN). The statistic test showed there was significant different between the group. In conclusion, the bonding agent can increase hardness of VLCR in flow readily and better than control and champhoroquinone group.
ANTIBACTERIAL EFFECT OF GLASS IONOMER AND ZINC OXIDE CHKM CEMENT AS ROOT CANAL FILLER TOWARD STREPTOCOCCUS VIRIDANS: EFEK ANTIBAKTERI SEMEN IONOMER KACA DAN ZINK OKSID CHKM SEBAGAI BAHAN PENGISI SALURAN AKAR TERHADAP STREPTOCOCCUS VIRIDANS Dwi Warna Aju Fatmawati; Ekiyantini Widowati
Dentika: Dental Journal Vol. 16 No. 2 (2011): Dentika Dental Journal
Publisher : TALENTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.3 KB) | DOI: 10.32734/dentika.v16i2.1844

Abstract

Luting type glass ionomer cement (GIC) can be used as root canal filler. Because GIC has biocompatiblity and contained fluor, clinicians used zinc oxide ChKM (ZnOChKM) as root canal filler that contained parachorophenol, camper, and menthol. ChKM has a ability as wide spectrum antibacterial and low irritation. The Aim of study was to know antibacterial of luting type glass ionomer and zinc oxide ChKM as root canal filler toward Streptococcus viridans. This study was a laboratory experimental, contained of 7 samples of luting type GIC and 7 samples ZnOChKM cement. The characteristics were 2 mm of the thickness and 5 mm of diameter, non porous, homogen, and smooth. Each sample was taken in TSA medium that had been inoculated Streptococcus viridans. TSA medium was perforated by straw like the samples size. After samples were incubated for 1, 7, and 14 days, we measured inhibition zone around samples by caliper. All data was analyzed by T – test (α=0.05). The result showed that mean of ZnOChKM cement inhibition zone cement on the first day was 2.12 cm; seventh days was 2.46 cm; and 14th days was 2.86 cm. Mean of GIC inhibition zone on the first day was 0.46 cm; seventh days was 1.18 cm; and 14th days was 1.26 cm. ZnOChKM cement zone inhibition was large than GIC inhibition zone. T – test analysis showed there was significant different between ZnOChKM cement and luting type GIC in all observation time. In conclusion, ZnOChKM cement as a root canal filler was more effective than GIC to inhibit growth of Streptococcus viridans.
Co-Authors Dwi Warna Aju Fatmawati