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Staf Dosen Kedokteran Gigi Unand

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Dentistry

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Pengaruh Menyikat Gigi dengan Siwak (Salvadora Persica) Terhadap pH Saliva Yossy Juliarni; Gunawan Gunawan
Andalas Dental Journal Vol 4 No 1 (2016): Andalas Dental Journal
Publisher : Faculty of Dentistry Universitas Andalas

Background: Salivary pH is one of factor which involved in caries development. Decreasing of salivary pH will cause enamel demineralization. Miswak (Salvadora persica) as a toothbrush because it has mechanical and chemical effects such as essential oil and bicarbonate which can stimulate salivary secretion. Thus, it will increase the buffer capacity and salivary pH lead to enamel remineralization. Objective: This study aimed to know the effect of toothbrushing with miswak (Salvadora persica) on salivary pH. Methods: The clinical experiment study with pre-test and post-test control group design. The sample of this study is the students of Faculty of Dentistry, Andalas University, Padang. There are 34 students that divided into two groups randomly that is case and control group. Case group used miswak while control group used conventional toothbrush, respectively brushing horizontally for 2 minutes. Salivary pH was measured using digital pH meter in scale of 0.0 to 14.0 with 0.1 sensitivity from pen type pH meter. The data analyzed by Shapiro-Wilk test continued by paired t-test and Mann-Whitney test. Results: paired t-test produced significant value p=0,001 in case group and p=0,000 in control group. Mann-Whitney test produced significant value p=0.317. There was no significant difference in statistic among these groups. Conclusion: Toothbrushing with miswak has effect on salivary pH. Miswak as effective as toothbrush on salivary pH. Keywords:Toothbrushing, miswak (Salvadora persica), Salivar

PERBANDINGAN KEKERASAN BAHAN GLASS IONOMER CEMENT YANG DIRENDAM ANTARA OBAT KUMUR BERALKOHOL DENGAN OBAT KUMUR BEBAS ALKOHOL Farid Yuristiawan; Gunawan Gunawan; Detty Iryani
Andalas Dental Journal Vol 4 No 2 (2016): Andalas Dental Journal
Publisher : Faculty of Dentistry Universitas Andalas

Glass ionomer cement is one of the filling material that often used on the field of dentistry because it is relatively less expensive and mostly available. It’s existence in the mouth makes it susceptible to any substance that comes into mouth one of them is mouthwash which is a solution that used for many purposes such as antiseptic, astrigent, to prevent caries and bad breath. The aim of this research is to know the comparison of surface hardness of glass ionomer cement which soaked in alcohol containing mouthwash and alcohol-free mouthwash. This research is a laboratoric experimental type study. Sampels made from GC FUJI IX GP EXTRA for as much as 30 sampels were made and then soaked in artificial saliva for the first 24 hours inside incubator which temperature and humidity were controlled. Sampels then divided into 3 groups. First group will be soaked in alcohol containing mouthwash, second group will be soaked alcohol-free mouthwash and control group will be soaked in artificial saliva for 6 hours inside incubator. Listerine is the mouthwash that was used on this research and surface hardness was examined using Vickers Hardness Tester. The result of this research shows mean value for surface hardness of the first group is 16.36 VHN, 24.04 VHN for second group, and 43.60 VHN for control group. The result one way ANOVA with post hoc Bonferroni comparing test show significant results p = 0.00. In Conclusion there are significant differences of surface hardness between each groups, which surface hardness of the first group is lower than the second group, and both surface hardness of the first and second group are lowered than control group (p = 0.00). Key words : Glass Ionomer Cement, Mouthwash, Surface Hardness

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