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Stroage duration Effect on Deformation Recovery of repacked Alginates

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Manufactures supply alginate impression materials as a powder that is packaged in bulk is packaged in balk and in individual containing Some Indonesia dental suppllers aften repackage the bulk alginate into individual plastic packages which are not tied rightly and stored in the display room without air conditioner. It is known that critical factors to the shelf life of alginate includer avoidance of moistrure contamination which may lead to premature setting of the alginate and avoidance of high temperature which may cause depolymerization of the alginate. The aim of this study was to determine storage duration effect of repacked alginates on deformation recovery. Two brands of alginates (Tulip TU, and Aroma DF III AF) were repacked into 120 plastic containeners. The sample were stored in room condition (temperature 29⁰C±1⁰C, relative humidity 60% ±60% ± 10%) for 1,2,3,4 and 5 weeks. The alginates setting time and recovery from deformation were measured according to the ANSI/ADA specification number 18(ISO 1563) The results revealed that there was decreased setting time during 5 weeks but there was slight decreased in deformation recovery after 3 weeks storage. The ANOVA showed there was no significant difference of alginates deformation recovery among the storage times (p>0.05). Storage duration of repocked algimates in plastic containers during 5 weeks in room condition do not influence the alginate deformation recovery.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

Dental Journal: 42(3):126-129

Penerbit

Surabaya : FKG Universitas Airlangga., 2009

Deskripsi Fisik

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Bahasa

English

ISBN/ISSN

1978-3728

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

dental caries
ALGINATES

Info Detail Spesifik

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Pernyataan Tanggungjawab

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Versi lain/terkait

Lampiran Berkas

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