The effect of calcium hydroxide intracanal medicament on root dentine microhardness: An in vitro study

Reem I. Taha, Demonstrator, Department of Endodontics, Faculty of Dentistry, Horus University, New Damietta, Egypt.Follow
Noha A El-Wassefy, Professor, Department of Dental Biomaterials, Faculty of Dentistry, Mansoura University, Mansoura, Dakahlia Egypt.
Amany E. Badr, Professor, Department of Endodontics, Faculty of Dentistry, Mansoura University, Mansoura, Dakahlia Egypt

Corresponding Author

Reem Ismail Taha

Article Type

Original Article

Section/Category

Endodontics

Abstract

Objective: To evaluate the root dentine microhardness after using calcium hydroxide (Ca (OH)2) intracanal medicament. Materials and methods: Forty single-rooted teeth were sectioned at the cemento-enamel junction level and the root canals were prepared till apical size of #30. The prepared teeth were divided into 2 groups (n=20): no medicament (control) group and Ca (OH)2 group. After seven days, medicaments were removed using standardized volume of irrigation. All teeth were sectioned in a bucco-lingual plane and embedded in acrylic resin horizontally with the dentine surfaces exposed. Using Vickers microhardness tester with magnification of 100× and a load of 25 g for 10 seconds, microhardness assessment was performed. Independent t-test was utilized for intergroup comparison. One-way ANOVA test and post-hoc Tukey’s tests were utilized for comparisons (P≤.05). Results: Microhardness in the control group was significantly greater than in the Ca (OH)2 group at coronal (P

Keywords

calcium hydroxide; intracanal medicaments; In vitro model; Vickers test.

How to Cite This Article

Taha R , El-Wassefy N , Badr A . The effect of calcium hydroxide intracanal medicament on root dentine microhardness: An in vitro study. Mans J Dent. 2024; 11(2):
Available at: https://doi.org/10.61793/2812-5479.1127