Evaluation of pH levels and calcium ion release in various calcium hydroxide endodontic dressings


    loading  Checking for direct PDF access through Ovid

Abstract

ObjectiveThe purpose of this study was to evaluate Ca2+ release and pH of 3 calcium hydroxide–based products used routinely as intracanal dressings, as well as the new gutta-percha points with calcium hydroxide.Study designThe pH and Ca2+ release were assessed using Calen with camphorated paramonochlorophenol, saline calcium hydroxide paste, LC paste (Lopes and Costa paste—calcium hydroxide with olive oil), and calcium hydroxide containing gutta-percha points. The materials were inserted in polyethylene tubes and immersed in deionized water. The pH variation and Ca2+ release were monitored periodically for 4 weeks.ResultsAfter 72 hours, materials 1 and 2 raise the pH from 9.6 and 8.2 to 11.4 and 11.3, respectively, while a small change was observed for materials 3 and 4. The calcium concentration released from materials 1, 2, 3, and 4 after 72 hours was 6.54, 4.98, 1.31, and 1.74 mg/dL, respectively.ConclusionCalen plus camphorated paramonochlorophenol and saline calcium hydroxide paste exhibited the highest calcium release and pH levels.

    loading  Loading Related Articles