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izvor podataka: crosbi

Contraction of Condensation Silicone Impression Materials (CROSBI ID 492624)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Šimunović-Šoškić, Marica ; Brekalo, Ivana ; Pezelj-Ribarić, Sonja ; Uhač, Ivone Contraction of Condensation Silicone Impression Materials // Collegium antropologicum / Maver, Hubert ; Rudan, Pavao (ur.). Zagreb: Collegium Antropologicum, 2002. str. 188-189-x

Podaci o odgovornosti

Šimunović-Šoškić, Marica ; Brekalo, Ivana ; Pezelj-Ribarić, Sonja ; Uhač, Ivone

engleski

Contraction of Condensation Silicone Impression Materials

The aim of this study was to examine the magnitude of contraction of two silicone condensation-type impression materials (Xantopren and RTV)mixed in two different ways: by hand and mechanicaly, and in humid and dry conditions. A total of 56 samples were prepared: seven samples of each silicone. Specimens were poured into the brass mould until the materials was set, followed by removal and storage of samples. Using optical instrument (SIP-414 with a digital microscope) dimensional measurements were made at different time intervals after setting (2, 3, 8, 24 and 48 hours) in order to check for material shrinking. The referent value was the measure of the brass mould. T-test showed statistically significant difference in the contraction of both materials in relation to the referent value in all time intervals and all conditions and mixing methods. Comparison of the mutual magnitude of the contractions in particular conditions and mixing methods showed statistically significant difference in the contraction of RTV material in humid and dry conditions, regardless of the mixing method. Contraction of Xantopren was not statistically significant in humid and dry conditions. The contractions were always greather when the materials had been mixed in humid conditions.

silicone impression materials; contraction

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Podaci o prilogu

188-189-x.

2002.

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objavljeno

Podaci o matičnoj publikaciji

Collegium antropologicum

Maver, Hubert ; Rudan, Pavao

Zagreb: Collegium Antropologicum

Podaci o skupu

13th Congress of the European Anthropological Association

poster

30.08.2002-03.09.2002

Zagreb, Hrvatska

Povezanost rada

Dentalna medicina