Comparative evaluation of pH and antibacterial effect of various calcium hydroxide combinations on E. faecalis and its effect on root strength: An in vitro study.

Contemporary Clinical Dentistry
A R PrabhakarO S Raju

Abstract

To evaluate and compare the pH and antibacterial property of Ca(OH)(2) combined with iodine potassium iodide (IKI) or chlorhexidine (CHX) on E. faecalis and to assess and compare their effect on fracture resistance of root dentin. CHX (0.5%) The following test materials were used: Group I Calcium hydroxide + saline, Group II Calcium hydroxide + CHX (0.5%) and Group III Calcium hydroxide + IKI (2%). For antibacterial activity, 60 root dentin blocks (20 in each group) were infected by E. faecalis followed by placement of medicaments. At the end of 24 h and 7 days, 10 samples from each group were randomly chosen and assessed for antibacterial activity. For evaluation of root strength, 30 teeth were used and stored in sterile saline after placement of medicament. At the end of 30 days, samples were subjected to fracture resistance testing on the Universal Strength Testing Machine. Hounsfield strength testing machine, UK pH of the various calcium hydroxide combinations was determined with a digital pH meter. Kruskal Wallis test, Mann Whitney U test, and one-way ANOVA test for intergroup comparison and Wilcoxon's signed rank test and student's paired t test for intragroup comparison. Group III showed significantly greater antibacteri...Continue Reading

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Citations

Jul 10, 2018·Clinical Oral Investigations·Thais Cristina PereiraFlaviana Bombarda de Andrade

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