The properties of endodontic sealer cements
1988; Elsevier BV; Volume: 14; Issue: 11 Linguagem: Inglês
10.1016/s0099-2399(88)80084-0
ISSN1878-3554
AutoresR. Caicedo, J.A. von Fraunhofer,
Tópico(s)Engineering Diagnostics and Reliability
ResumoTwo new Ca(OH) 2 -based sealer cements, CRCS and Sealapex, were compared with Procosol cement for compressive strength, setting time, solubility, dimensional stability, and radiopacity. CRCS set within 3 days in both a dry and a humid environment and Procosol required more than 2 wk to set in 100% rH. Sealapex set in about 3 wk in 100% rH but did not set in over 4 wk in a dry environment. Sealapex exhibited significant volumetric expansion during setting in 100% rH; the expansion was specimen size dependent and decreased with larger specimens. CRCS and Procosol showed a decrease in compressive strength during storage in water for 21 days. CRCS showed little weight change with water immersion, Procosol showed a virtually constant weight gain of 0.5% while Sealapex showed a linear weight gain of 1.5% over 21 days. The radiopacity of Procosol and CRCS showed no change over 3 wk in a 100% rH atmosphere but Sealapex showed a time-related change in radiopacity.
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