Dental Journal (Majalah Kedokteran Gigi)
ISSN 1978-3728
Vol. 45 / No. 3 / Published : 2012-09
Order : 11, and page :177 - 180
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Original Article :
Physical characteristic of brown algae (phaeophyta) from madura strait as irreversible hydrocolloid impression material
Author :
- Prihartini Widiyanti*1
- Siswanto*2
- Engineering Study Program, Department of Physics, Faculty of Science and Technology, Universitas Airlangga, Surabaya - Indonesia
- Physics Study Program, Department of Physics, Faculty of Science and Technology, Universitas Airlangga, Surabaya-Indonesia
Abstract :
Background: Brown algae is a raw material for producing natrium alginates. One type of brown algae is Sargassum sp, amember of Phaeophyta division. Sargassum sp could be found in Madura strait Indonesia. Natrium alginate can be extracted fromSargassum sp. The demand of alginate in Indonesia is mainly fulfilled from abroad, meanwhile Sargassum sp is abundantly available.Purpose: The purpose of study were to explore the potency of brown alga Sargassum sp from Madura strait as hydrocolloid impressionmaterial and to examine its physical characteristic. Methods: The methods of research including extraction natrium alginate fromSargassum sp, synthesis of dental impression material and the test of porosity, density, viscosity, and water content of impressionmaterial which fulfilled the standard of material used in clinical application in dentistry. Results: Extraction result of Sargassum spwas natrium alginate powder with cream colour, odorless, and water soluble. The water content of natrium alginate was 21.64% andthe viscosity was 0.7 cPs. The best porosity result in the sample with the addition of trinatrium phosphate 4% was 3.61%. Densityvalue of impression material was 3 gr/cm3. Conclusion: The research suggested that brown algae Sargassum sp from Madura straitis potential as hydrocolloid impression material, due to its physical properties which close to dental impression material, but still needfurther research to optimize the physical characteristic.
Keyword :
Brown algae, Madura strait, irreversible hydrocolloid, , physical characteristic,
References :
Anggadiredja JT,(2010) Rumput laut Jakarta : Penebar Swadaya
Archive Article
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Volume : 45 / No. : 3 / Pub. : 2012-09 |
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