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RINA AFRIANA. PENGARUH KONSENTRASI DAN DURASI WAKTU PEMAPARAN LARUTAN ASAM SITRAT TERHADAP KEKERASAN EMAIL GIGI TETAP. Banda Aceh : Fakultas Kedokteran Universitas Syiah Kuala, 2016 |
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AbstrakSports drinks are beverages that contain carbohydrates and supplements to add fluid and nutrients in the body so many people consume these beverages. every sports drinks contain citric acid with different concentrations which is one of the factors causing erosion. the concentration of a drink and the duration of time in consuming these drinks can also affect erosion. purpose of this study was to determined the influence of concentration and exposure duration citric acid solution on the surface hardness of tooth enamel. this study is experimental laboratory tested using vickers microhardness were analyzed by descriptive qualitative. specimens in this study of 13 premolars were divided into 1 for control, 6 for the concentration of 31.99 mg/l (k.1) and 6 for the concentration of
63.98 mg/l (k.2) with a time of 5, 20, 90 minutes. the result demonstrate the value of hardness on the control is 350.33 vhn, the k.1 is 369-320 vhn and the k.2 is 331-264 vhn. based on immersion time
Baca Juga : PERBEDAAN APLIKASI LARUTAN FLUORIDE DAN LARUTAN KAKAO (THEOBROMA CACAO LINN) TERHADAP KEKERASAN PERMUKAAN EMAIL GIGI. (Cut Zawil Fitria, 2015) ,
Baca Juga : PENGARUH DURASI PAPARAN LARUTAN ASAM SUNTI (AVERRHOA BILIMBI) TERHADAP KEKASARAN PERMUKAAN EMAIL GIGI (Mardiah, 2014) , f the k.1, within 5 minutes is obtained of the average value is 323 vhn, in 20 minutes at 356 vhn and in 90 minutes is 329 vhn. the k.2 with 5 minutes is obtained of average value is 321 vhn, in 20 minutes at 321 vhn and in 90 minutes obtained 274 vhn. the results can be concluded that citric acid solution with concentration and exposure duration different to lower the hardness of tooth enamel. the longer the teeth are exposed to a solution of citric acid will decrease the surface hardness of tooth enamel, the higher the concentration of citric acid solution will decrease the surface hardness of tooth enamel while demineralization process has not occurred. keywords : citric acid, enamel, vickers, surface hardness of tooth enamel Tulisan yang relevan EVALUASI KEKASARAN PERMUKAAN EMAIL GIGI BOVINE SETELAH PAPARAN YOGHURT (DITINJAU DARI DURASI PERENDAMAN) (YAUMIL SHUADZA, 2016) ,PENGARUH KUAH ASAM KEUENG TERHADAP KEKASARAN PERMUKAAN EMAIL GIGI (Syarifah Maghfirah , 2016) , PENGARUH PENCELUPAN KARKAS AYAM PEDAGING DALAM LARUTAN ASAM SITRAT DAN ASAM ASETAT TERHADAP ANGKA LEMPENG TOTAL ESCHERICHIA COLI (Sandy Cakra Yuda, 2015) , |
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PROSPEK EKSPOR KOPI ARABIKA ORGANIK BERSERTIFIKAT DI KABUPATEN ACEH TENGAH |
ANALISIS KOMPARATIF TINGKAT PENDAPATAN USAHATANI PADI SAWAH IRIGASI DAN PADI SAWAH TADAH HUJAN BERDASARKAN STATUS PENGUASAAN LAHAN DI KECAMATAN KUTA COT GLIE KABUPATEN ACEH BESAR |
KAJIAN PEMASARAN DAN KEUNTUNGAN PETANI KACANG TANAH DI KECAMATAN DARUSSALAM KABUPATEN ACEH BESAR |
STUDI PENDAPATAN RUMAH TANGGA PERTANIAN DI DATARAN TINGGI (KASUS DESA URING KECAMATAN BUKIT KABUPATEN BENER MERIAH) |
ANALISIS PENDAPATAN USAHATANI TEMBAKAU DI KECAMATAN BANDAR BARU KABUPATEN PIDIE JAYA |