Restoration of Teeth with Cention-N and Tetric N Ceram Bulkfill Materials on Tooth Surface: An In-Vitro Comparative Evaluation of Physico-Mechanical Properties:

Urooj Waseem; Mehreen Imran; Saba Waseem; Saira Khalid; Hammad Hassan; Wajiha  Ahmad

doi:10.29054/apmc/2025.1634

Urooj Waseem MPhil Trainee (Science of Dental Materials), Department of Science of Dental Materials, de’ Montmorency College of Dentistry, Post Graduate Medical Institute, Lahore Pakistan
Mehreen Imran Associate Professor, Department of Science of Dental Materials, Peshawar Dental College, Riphah International University, Islamabad Pakistan
Saba Waseem General Dentist, Department of General Dentistry, Shalamar Hospital, Lahore Pakistan
Saira Khalid Professor, Department of Science of Dental Materials, Faryal Dental College, Lahore Pakistan
Hammad Hassan Assistant Professor, Department of Science of Dental Materials, Azra Naheed Dental College, Superior University, Lahore Pakistan
Wajiha Ahmad Lecturer, Department of Science of Dental Materials, Women Medical and Dental College, Abbotabad Pakistan

DOI: https://doi.org/10.29054/apmc/2025.1634

Keywords: Microleakage, Polymerization, Resin composites, Shear strength

Abstract

Objective: The study aimed to evaluate and compare the shear bond strength, degree of conversion, microleakage, sorption, and solubility between Cention N and Tetric N Ceram Bulk Fill restorative materials. Study Design: Quasi-experimental study. Settings: de’ Montmorency College of Dentistry, University College of Dentistry, and Institute of Dentistry, CMH Lahore Medical College, Lahore Pakistan. Duration: From January 2022 to December 2024. Methods: The study was conducted after the approval of IRB on a sample of 111 extracted molars and premolars, which were divided into four groups, each treated with different combinations of adhesives and restoration: Group A (Cention N with total-etch), Group B (Cention N with self-etch), Group C (Tetric N Ceram with total-etch), and Group D (Tetric N Ceram with self-etch). The samples were subjected to micro shear bond strength testing, FTIR spectroscopy, microleakage using dye penetration, and water sorption and solubility tests. Statistical analyses were performed using ANOVA and post-hoc Tukey tests. Results: Cention N demonstrated significantly higher micro shear bond strength (p<0.001) compared to Tetric N Ceram. The degree of conversion was highest in Tetric N Ceram (p=0.008). Microleakage analysis revealed that Cention N with adhesive showed the least leakage (p=0.218), while water sorption and solubility were lowest in Cention N (p<0.001 for both). Conclusion: Cention N outperformed Tetric N Ceram in terms of micro shear bond strength, microleakage, sorption, and solubility, making it a more reliable and durable restorative material. However, factors such as ease of use, cost, and patient comfort should also be considered.