Pengaruh Penambahan Pati Ubi Kayu Pada Bahan Cetak Alginat Terhadap Stabilitas Dimensi
DOI:
https://doi.org/10.18196/di.v1i1.507Keywords:
alginate impression material, cassava starch, dimension stabilityAbstract
Bahan cetak alginat merupakan bahan yang digunakan untuk mencetak gigi geligidan jaringan rongga mulut ,bahan cetak alginat masih di impor dan cukup mahal
harganya. Pada penelitian Febriani 2001, telah dilakukan modifikasi pada bahan
cetak alginat dengan pati ubi kayu dengan perbandingan 1:1 dan didapat hasil
reproduksi detil yang sama dengan bahan cetak alginat tanpa ditambah dengan
pati ubi kayu. Penelitian ini bertujuan untuk menganalisis sifat stabilitas dimensi
bahan cetak alginat yang ditambah pati kayu. Pati ubi (Manihot utilisima)
merupakan suatu polimer yang mengandung amilosa dan amilopektin yang dapat
ditambahkan pada bahan cetak alginat. Metoda dan bahan : Bahan yang
digunakan pada penelitian ini adalah bahan cetak alginat tipe normal, pati ubi
kayu, aquadestilata dan alat uji stabilitas dimensi sesuai standar ANSI/ADA
no.18/1992. Hasil penelitian. Hasil stabilitas dimensi stabilitas dimensi antara
bahan cetak alginat standar (2,9782 mm dan 2,9719 mm) dengan bahan cetak
alginat standar yang ditambah pati ubi kayu (2,9797 mm dan 2,9795 mm).
Kesimpulan. Penambahan pati ubi kayu (Manihot utilisima) pada bahan cetak
alginat standar mendapatkan hasil pengujian stabilitas dimensi yang masih
memenuhi standar ANSI/ADA no.18/1992. Stabilitas dimensi bahan cetak alginat
yang ditambah pati ubi kayu memiliki nilai stabilitas dimensi yang lebih lama
dari pada bahan cetak alginat standar.
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Published
2012-01-15
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