Mallikarjuna Ragher1, G Vinayakumar2, Sanketsopan Patil3, Aishwarya Chatterjee4, D M Mallikarjuna5, Savita Dandekeri5, V Swetha5, M R Pradeep6. 1. Assistant Professor, Department of Prosthodontics, Yenepoya Dental College Yenepoya University, Mangaluru, Karnataka, India, Phone: +917676708707, e-mail: drmallis@gmail.com. 2. Department of Prosthodontics, College of Dental Sciences Davanagere, Karnataka, India. 3. Department of Prosthodontics, Yogitha Dental College and Hospital, Ratnagiri, Maharashtra, India. 4. Department of Prosthodontics, SMS Medical College and Hospital, Jaipur, Rajasthan, India. 5. Department of Prosthodontics, Yenepoya Dental College Yenepoya University, Mangaluru, Karnataka, India. 6. Department of Prosthodontics, AJ Institute of Dental Sciences Mangaluru, Karnataka, India.
Abstract
OBJECTIVE: The objective of this study was to evaluate and compare changes in the flexural strength of heat-cured denture base resins when treated using denture cleansers. STUDY DESIGN: A total of 40 specimens with dimension 65 mm length, 10 mm width, and 3 mm thickness were prepared as per ISO 1567 specification. A total of 10 specimens were immersed in distilled water to be used as control. Of the remaining 30 samples, 10 were treated with Clinsodent, 10 with VI-Clean, and 10 with Clanden denture cleansers. Specimens in each group were subjected to three-point flexural load in universal testing machine at a cross-head speed of 5 mm/min. The peak load (N) was recorded and flexural strength was calculated. The findings were analyzed using Kruskal-Wallis analysis of variance and Mann-Whitney test. RESULTS: Heat-cured denture base resin selected for this study showed significant difference in flexural strength after immersion in denture cleansers Clinsodent, VI-Clean, and Clanden solutions, when compared with the control group. CONCLUSION: Findings of this study showed that denture cleansers altered the flexural strength of heat polymerized acrylic resins that endured soaking cycles which simulated 180 days of use. Hence, denture cleansers should be used with caution, once a day after brushing the dentures. It is advisable for patients to follow the manufacturer's instructions.
OBJECTIVE: The objective of this study was to evaluate and compare changes in the flexural strength of heat-cured denture base resins when treated using denture cleansers. STUDY DESIGN: A total of 40 specimens with dimension 65 mm length, 10 mm width, and 3 mm thickness were prepared as per ISO 1567 specification. A total of 10 specimens were immersed in distilled water to be used as control. Of the remaining 30 samples, 10 were treated with Clinsodent, 10 with VI-Clean, and 10 with Clanden denture cleansers. Specimens in each group were subjected to three-point flexural load in universal testing machine at a cross-head speed of 5 mm/min. The peak load (N) was recorded and flexural strength was calculated. The findings were analyzed using Kruskal-Wallis analysis of variance and Mann-Whitney test. RESULTS: Heat-cured denture base resin selected for this study showed significant difference in flexural strength after immersion in denture cleansers Clinsodent, VI-Clean, and Clanden solutions, when compared with the control group. CONCLUSION: Findings of this study showed that denture cleansers altered the flexural strength of heat polymerized acrylic resins that endured soaking cycles which simulated 180 days of use. Hence, denture cleansers should be used with caution, once a day after brushing the dentures. It is advisable for patients to follow the manufacturer's instructions.
Entities:
Keywords:
Denture base resins; Denture cleanser; Flexural strength.