Calcium hydroxide root canal sealers: evaluation of pH, calcium ion concentration and conductivity |
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| Authors: | L. A. Bezerra Da Silva,M. R. Leonardo,R. S. Da Silva,S. Assed,& L. F. L. Guimarã es |
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| Affiliation: | Department of Pediatric Dentistry, Ribeirão Preto Dental School, USP;Department of Endodontics, Araraquara Dental School UNESP;Department of Physical Chemistry, Ribeirão Preto School of Pharmacy, USP, Brazil |
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| Abstract: | ![]()
The calcium hydroxide ionization of four root canal sealers (Sealapex, CRCS, Sealer 26, and Apexit) was studied by measuring conductivity and pH and by conducting atomic absorption spectrophotometry. Samples 6 mm in diameter and 15 mm long were prepared from these sealers. After setting and 48 h storage in a desiccator, five samples of each material were placed in 50 mL distilled water and analysed after 0,1,2,4, 6 and 24 h and 5, 15 and 30 days. The results showed that Sealapex was the root canal sealer showing the highest pH, ionic calcium and total calcium values ( P <0.05) throughout the experimental period, followed by CRCS, Apexit and Sealer 26. |
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| Keywords: | calicium hydroxide root canal sealers |
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