Abstrak

Baca Juga : PENGARUH PEMBERSIH GIGI TIRUAN YANG MENGANDUNG SODIUM BIKARBONAT 48% TERHADAP PERUBAHAN KEKASARAN RESIN AKRILIK HEAT CURED (ADELLYA TASYA SUKMA, 2020) ,

Baca Juga : PENGARUH LARUTAN KLORHEKSIDIN GLUKONAT 0,2% TERHADAP KEKASARAN PERMUKAAN RESIN AKRILIK HEAT CURED YANG DIPOLIMERISASI DENGAN TEKANAN (Samsul Bahri, 2013) ,

mensimulasikan pemakaian selama satu tahun. pengukuran kekasaran permukaan dilakukan dua kali yaitu sebelum dan sesudah perendaman dengan alat surface roughness tester dengan ketelitian sebesar 0,01 ?m dan kecepatan 0,5 mm/s. data yang diperoleh kemudian dianalisis dengan menggunakan analisis uji t berpasangan, dihasilkan nilai rata-rata kekasaran permukaan berturut-turut yaitu untuk 1 hari 0.225±0.0258 µm dan untuk 2 hari 0.228±0.0105 µm. hasilnya nilai kekasaran permukaan dua kelompok tersebut tidak nyata berbeda. kesimpulan dari penelitian ini menunjukkan bahwa kekasaran permukaan plat resin akrilik heat cured tidak mengalami perubahan setelah direndam dalam larutan polident selama 1 hari dan 2 hari kata kunci : resin akrilik, polident, kekasaran permukaan. abstract name : muhammad habibi program study : dentistry title : the effect of immersion duration of heat cured acrylic resin in denture cleanser to surface roughness. procedures immersion of denture acrylic resins in denture cleanser solution has long been recommended for denture wearers. acrylic resin has the power absorption of the water, it is possible this could lead to a change of surface roughness on heat cured acrylic resin.this study was conducted to determine the effect of immersion time on surface roughness of acrylic plate denture base. this study used 12 specimens of heat cured acrylic resin qc-20 with a size of 65 x 25 x 2.5 mm. twelve specimen of heat cured acrylic resin which divided into two subgroups. then each groups was immersed in denture cleanser for 1 day and 2 days to simulate usage for one year. measurements were performed twice, before and after immersion with surface roughness tester accuracy of 0.01 ?m. the data obtained was analyzed using a paired sample t test analysis. the mean values of surface roughness in a row to 1 days was 0.225±0.0258 µm and 2 days was 0.228±0.0105 µm. this shows that there was no significant differences between two groups. the conclusion of the studied showed that the surface roughness of acrylic resins denture base not changed after immersion in polident denture cleanser for 1 day and 2 days. keyword : acrylic resin, polident, surface

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