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Journal : ODONTO Dental Journal

PENGARUH POSISI SERAT KACA (FIBERGLASS) YANG BERBEDA TERHADAP KEKUATAN FLEKSURAL FIBER REINFORCED ACRYLIC RESIN Aprilia Dian Fatimina; Benni Benyamin; Helmi Fathurrahman
ODONTO : Dental Journal Vol 3, No 2 (2016): December 2016
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.3.2.128-132

Abstract

Background: One of factor that increases the flexural strenght of fiberreinforced acrylic resin is a fiberglass position . Fiberglass is one of type that can be used in dentistry. The aim of this was to determine the influence of position of fiberglass to the flexural strenght of fiber reinforced acrylic resin.Method: This study was in vitro laboratory experimental. Samples was 16plate spesimens (65x10x2.5mm). The study group was divided into 4 group : 3 groups of fiber reinforced acrylic resin were given fiberglass at the upper, middle, and bottom side and 1 control group of resin acrylic without fiberglass. All of groups would be in the flexural strenght test with a three-point bending test using a universal testing machine.Result: Based on One Way ANOVA test showed that there were significantvalue 0.000 (p<0.05), it concluded that there were significant influencebetween all the groups. Based on the LSD Post Hoc test showed that therewere significant value between all of groups with fiberglass reinforced andcontrol group without fiberglass reinforced. Comparisson between the group that given fiberglass in a upper and middle side with the group that given in bottom side showed value of significant difference (p < 0.05).Conclusion: The result of study was concluded that there was an influenceon the position of fiberglass to flexural strenght of fiber reinforced acrylic resin
PERBEDAAN KELARUTAN KALSIUM PADA GIGI DESIDUI DAN GIGI PERMANEN DALAM PERENDAMAN MINUMAN BERKARBONASI RASA BUAH Octa Nana Erviana; Diyah Fatmasari; Benni Benyamin
ODONTO : Dental Journal Vol 2, No 2 (2015): December 2015
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.2.2.68-72

Abstract

Introduction: SThe carbonated beverage is the main factor  causing tooth erosion due to acidic and mass consumed, especially by children and adolescents.Purpose: This study was conducted to determine the  differences between solubility of calcium in deciduous teeth and  permanent teeth in the soaking fruit-flavored carbonated  beverage.Methods: The research was a quasi experimental research with the formulated research post test only design. The sample used was 24 teeth, which consists of 12 deciduous incisors central teeth of the maxillary and 12 incisor central permanent teeth of the maxillary. The samples were divided into 6 groups and treated by soaking in the carbonated soft drinks for 30, 45, and 60 minutes. The data analysis used in this reasearch was a Two Way ANOVA test with probability p<0.05. Furthermore, the data were analyzed by the Tukey HSD test to determine the  differences in each group.Results: Based on Two Way ANOVA test that was conduct, it was obtained significance value of 0.000 (p <0.05), so it can be concluded that there are significant differences between groups. From Tukey HSD test it was obtained a significance value of  p<0.05 in all groups. It means that there are significant differences between each group, except in the immersion group of deciduous teeth 30 minutes with the permanent teeth 45 minutes that obtained 0,929 significance (p>0.05). It means that there was no significant differences between the two treatment groups. The result of the data analysis reveals that there was a difference in the solubility of calcium in deciduous teeth and permanent teeth. The solubility of calcium in deciduous teeth was larger than the permanent teeth at all time duration,  because of the deciduous teeth had thinner and permeable enamel than permanent teeth.