1 Department of Restorative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
2 Department of Prosthodontic, School of Dentistry, Ilam University of Medical Sciences, Ilam, Iran.
3 Department of Prosthodontic, Tehran University of Medical Sciences, Islamic Azad University, Tehran, Iran.
4 School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
5 Researcher, Dental School, Alborz University of Medical Sciences, Karaj, Iran.
World Journal of Biology Pharmacy and Health Sciences, 2025, 22(01), 417-423
Article DOI: 10.30574/wjbphs.2025.22.1.0367
Received on 23 February 2025; revised on 07 April 2025; accepted on 10 April 2025
Introduction: Due to the importance of the retention on long term success in fix prosthodontics and its known complications effect of insufficient retention, and due to lack of sufficient information about the effect of Fluoride varnish on the retention of full coverage crowns cemented by Self-adhesive cement (RelyX U200), in this study we evaluated the effect of Fluoride varnish on the retention of full coverage crowns cemented by Self-adhesive cement (RelyX U200).
Methods: In this experimental study, 20 intact human premolars after preparation and create 0.5 mm chamfer finish line above the cementenamel junction, allocated to the two groups of cases (10 teeth treated with Fluoride varnish) and control group (10 teeth without surface treatment). Full metal crowns were made of base metal with a ring (for retention test). Then all the crowns were cemented with RelyX U200 cement and the retention test was performed using a universal testing machine. Data were analyzed with t-test (SPSS Ver:22).
Result: The tensile strength of Fluoride varnish group (153.92±67.50) is significantly lower than control group (458.32±165.52) (P=0.0001).
Conclusion: Fluoride varnish has negative effect on the tensile strength of Self-adhesive cement (RelyX U200).
Dentin desensitizing agent; Retention; Resin cement; Crown
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Nastaran Dabiri Shahabi, Hamed Bahrami Maleki, Mahnaz Zeynali, Mona Bazooband and Shahryar Irannejadrankouhi. The effect of Fluoride varnish on the retention of full coverage crowns cemented by Self-adhesive cement RelyX U200. World Journal of Biology Pharmacy and Health Sciences, 2025, 22(01), 417-423. Article DOI: https://doi.org/10.30574/wjbphs.2025.22.1.0367.