Abstract:
Aim Appraise the impact of three intracanal medications on the push-out bond strength of a bioceramic sealer to radicular dentin.
Methodology Forty maxillary cental incisors were collected, decoronated, and chemo-mechanical preparation was carried out using ProTaper Next files. According to the intracanal medications, teeth were equally separated into four groups ; Group 1: bioceramic intracanal medicament (Bio-C Temp), Group 2: Glycyrrhizin, Group 3: Calcium hydroxide (CH), and Group 4: without use of intracanal medications (control). Intracanal medicaments were eliminated after one week and all samples were filled using gutta-percha lateral compaction technique and a Bioceramic sealer (Bio-C). After one week of incubation, push-out bond strength was measured at three root levels. The collected data were statistically analyzed and compared using one-way analysis of variance (ANOVA) and Tukey test (P ≤ 0.05).
Results at all root levels, group 3 using CH medication showed statistically significant lower results than all other tested groups. Control group showed higher values followed by bioceramic and Glycyrrhizin intracanal medicaments groups without statistical significant differences . In all groups, coronal root levels recorded higher values than other levels with statistical significant difference with apical level only.
Conclusions push-out bond strength of Bio-C bioceramic sealer to radicular dentin was negatively affected by prior application of CH. However, bioceramic (Bio-C Temp) and Glycyrrhizin intracanal medications did not have negative impact.
Keywords bioceramic intracanal medicament, bioceramic sealer, Calcium hydroxide, Glycyrrhizin.