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Composite wall‐to‐wall polymerization contraction in dentin cavities treated with various bonding agents
Author(s) -
JÖRGENSEN KNUD DREYER,
ITOH KAZUO,
MUNKSGAARD ERIK CHRISTIAN,
ASMUSSEN ERIK
Publication year - 1985
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1985.tb01957.x
Subject(s) - dentin , benzalkonium chloride , polymerization , composite number , chloramine , aqueous solution , contraction (grammar) , materials science , composite material , sodium , chemistry , dentistry , chromatography , polymer , organic chemistry , metallurgy , medicine , chlorine
– Extracted human teeth are frequently used in studies on bonding of composites to dentin. However, little is known about the effect of storing conditions on the results recorded. The purpose of the present work was to measure the wall‐to‐wall polymerization contraction of a light‐cured composite material with and without the use of five different dentin bonding agents in cylindrical dentin cavities prepared in extracted human teeth, either fresh or after storing for up to 4 wk in four different media. No effect of the storing conditions on the width of contraction gaps could be demonstrated when the teeth were stored either in tap water or in a 1.0% aqueous chloramine solution. Aqueous solutions of either 0.1% benzalkonium chloride or 0.9% sodium chloride did occasionally affect the size of the contraction gap.