Calcium hydroxide root canal sealers: Evaluation of pH, calcium ion concentration and conductivity
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Data
1997-12-01
Autores
Bezerra Da Silva, L. A.
Leonardo, M. R. [UNESP]
Da Silva, R. S.
Assed, S.
Guimarães, L. F L
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Resumo
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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Palavras-chave
Calcium hydroxide, Root canal sealers, Apexit, bismuth, Calcibiotic Root Canal Sealer, calcium, calcium hydroxide, root canal filling material, salicylic acid derivative, sealapex, Sealer 26, zinc oxide, atomic absorption spectrometry, chemistry, comparative study, ion exchange, pH, Bismuth, Calcium, Calcium Hydroxide, Hydrogen-Ion Concentration, Ion Exchange, Root Canal Filling Materials, Salicylates, Spectrophotometry, Atomic, Zinc Oxide
Como citar
International Endodontic Journal, v. 30, n. 3, p. 205-209, 1997.