Prihartini Widiyanti and Siswanto (2013) Potency of Sargassum SP from Madura Strait as Irreversible Hydrocolloid Impression Material. In: Proceeding of 4th ICOWOBAS-RAFSS. UTM, Malaysia, Johor, pp. 53-56.

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Abstract

Sargassum sp is one type of brown algae which abundantly available on Madura Strait, Indonesia. Brown algae has been used is one of raw material source of natrium alginates. One type of brown algae found growing in waters of Indonesia is Sargassum sp. Sargasum sp as the member of division Phaeophyta could be found in Madura Strait. Alginate as irreversible hydrocolloid impression material is quite important in dentistry The need of alginate is fulfilled by supply from abroad. Meanwhile, the availability of Sargassum sp is overflow. Purpose : This research aims are to explore the potency of brown alga Sargassum sp from its basic compound natrium alginate and to examine its mechanical characteristic and bicompatibility. Methods : The methods of this research including extraction natrium alginate from Sargassum sp, synthesis dental impression material and mechanical characteristic (compressive strength), and MTT Assay. Results : Extraction result is natrium alginate powder with cream colour, odorless, dissolved in water. The compressive strength is showed the best result 127,8 kPa in the sample with the addition of trinatrium phosphate 4%, but this value was still far away from the value of control material. Conclution : The dental impression material with natrium alginate from Sargassum sp from Madura strait has mechanical properties which still far away from the control but the biology characteristic of dental impression material based on natrium alginate from Sargassum sp has been showed excellent result ( viability cell in the range 84,2 – 85,7 %). This means that the hydrocolloid impression material based on Natrium alginate from Sargassum sp extraction is non toxic.

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