Abstract:The dimensional changes of 4 types commercial luting cements after setting were examined in distilled water, using a developed thermal expansion testing apparatus. The measurements were carried out under three conditions: increasing temperature (from 37•Ž to 60•Ž), decreasing temperature (from 37•Ž to 10•Ž), and constant temperature (37•Ž). The results indicated that: (1) the zinc phosphate cement possessed superior dimensional stability after setting; (2) the variation values in dimension of Fuji Ionomer and … Show more
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