Abstract
There are several causal possibilities developing dimensional changes on impression
such as type of impression materials used, impression taking technique, bulk of
impression material or size of impression tray. In this study investigation was done on
the size of impression material used to elucidate the possibilities role of impression
material in gaining dimensional changes of impression. Rectangle shape alginate
impressions were made in 29.57 mm length, 19.45 mm width and 9.67 mm thickness
mold of metal master die covered by glass plate and dimensional changes are
measured on alginate impression itself. Then data were analyzed with T-test (paired
samples test)to compare dimension changing between alginat height and
dimension changing on length and width. Measured results show the dimensional
changes occur 3.16% ± 0.63% on length side, 3.35% ± 0.42% on width side and
10.87% ± 1.01% on thickness side, respectively. There are significantly differences of
dimensional changes on thick ness side covered by glass plate compared with
dimensional changes on length and width sides surrounding by metal of master die.
Recommended Citation
Sastrodihardjo, Sumadhi
(2008)
"Perobahan dimensi hasil cetakan alginat berbentuk balok,"
Dentofasial: Vol. 7:
Iss.
1, Article 1.
DOI: 10.15562/jdmfs.v7i1.195
Available at:
https://scholarhub.unhas.ac.id/dentofasial/vol7/iss1/1
Pages
63-69
Rights
©2016Sumadhi Sastrodihardjo
DOI
10.15562/jdmfs.v7i1.195