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Biological, Radiographic and Clinical Evaluation of Various Inter-Visit Root Canal Dressings in Retreatment Cases
Sponsor: Ain Shams University
Summary
The aim of this clinical trial is to evaluate anti-inflammatory effect of various intracanal medications: 1. Calcium Hydroxide Slurry mixed with 3% Sodium Hypochlorite 2. Calcium Silicate 3. Calcium Hydroxide In retreatment cases in terms of: 1. Biological Evaluation: Biomarker (IL 1B) 2. Radiographic Evaluation: CBCT 3. Clinical Evaluation: Pain Score (VAS)
Official title: Biological, Radiographic and Clinical Evaluation of Various Inter-Visit Root Canal Dressings in Retreatment Cases: A Randomized Controlled Clinical Trial
Key Details
Gender
All
Age Range
21 Years - 45 Years
Study Type
INTERVENTIONAL
Enrollment
60
Start Date
2026-06-01
Completion Date
2027-08
Last Updated
2026-06-12
Healthy Volunteers
Yes
Conditions
Interventions
Calcium Silicate Intracanal Medication
Calcium silicate-based bioceramic materials have gained attention for their bioactivity and biocompatibility, acting through hydration with calcium hydroxide release followed by hydroxyapatite formation that promotes healing. Bio-C Temp is an example, characterized by high calcium ion release, alkaline pH, adequate radiopacity, and good biocompatibility.
Calcium Hydroxide Slurry mixed with Sodium Hypochlorite Intracanal Medication
Combining calcium hydroxide with sodium hypochlorite (NaOCl) has been proposed. NaOCl provides rapid and potent antimicrobial and tissue-dissolving effects, while Ca(OH)₂ offers prolonged action. Both agents retain their properties when combined, and this combination may produce a synergistic effect that enhances disinfection and reduces chair time in two-visit treatment protocols.
Calcium Hydroxide (Ca(OH)2) Intracanal Medication
Calcium hydroxide ICM being the most widely used due to its high alkalinity, antimicrobial properties, endotoxin neutralization, and ability to reduce periapical inflammation. It is applied as an aqueous mixture or polyethylene glycol-based paste and provides a slow but sustained antimicrobial effect. Despite their benefits, Ca(OH)₂ medicaments re limited by their solubility, susceptibility to tissue fluids, potential to weaken tooth structure over time, and reduced effectiveness against resistant microorganisms such as Candida Albicans and Enterococcus Faecalis.
Locations (1)
Ain Shams University
Cairo, Egypt