In-Vitro Bond Strength of a Flowable Compomer to Primary Teeth Dentin with Different Applying Techniques

Authors : Bahar ZİNCİR, Elif ŞENAY, Ece ÖZTOPRAK, Levent ÖZER

Pages : 83-86

Doi:10.52037/eads.2022.0031

View : 40 | Download : 11

Publication Date : 2022-08-31

Article Type : Research Paper

Abstract :Purpose: The study aimed to investigate the effect of applying flowable compomer using different techniques and long-term water storage on microtensile bond strength insert ignore into journalissuearticles values(µTBS); to primary teeth dentin and present a comparison with packable compomer. Materials and methods: 90 primary molars were used to evaluate the µTBS of the materials. Specimens were randomly divided into 3 main groups for restoration: Group 1 and 4, compomer insert ignore into journalissuearticles values(Glasiosite, VOCO GmbH, Cuxhaven, Germany); filling alone; Group 2 and 5, flowable compomer insert ignore into journalissuearticles values(Twinky Star Flow, VOCO GmbH, Cuxhaven, Germany); lining/pre-cured and overlaying compomer; and Group 3 and 6, flowable compomer lining/co-cured with overlaying compomer. All specimens were thermocycled insert ignore into journalissuearticles values(500X);, after which half of them insert ignore into journalissuearticles values(n=45); were stored in distilled water for 24 h insert ignore into journalissuearticles values(Group A: Groups 1-3);, and the remaining half insert ignore into journalissuearticles values(n=45); for 24 months insert ignore into journalissuearticles values(Group B: Groups 4-6);. Samples were tested for µTBS insert ignore into journalissuearticles values(1 mm/min); with a microtensile testing machine insert ignore into journalissuearticles values(T 61010 Ki, Bisco, Schaumburg, USA);. Failure modes were determined with the aid of a stereomicroscope. Results were analyzed using the Kruskal-Wallis H test. Results: There was no statistically significant difference between the groups regarding bond strength insert ignore into journalissuearticles values(p>0.05);. Mixed cohesive failure of both adhesive and dentin was the most common type of failure in all groups insert ignore into journalissuearticles values(p<0.05);. 2-year water storage significantly decreased the bond strength for all groups insert ignore into journalissuearticles values(p<0.05);. Conclusion: Flowable compomers applied using different techniques produced similar bond strength to dentin compared to compomer. However, long-term water storage decreased bond strength significantly.
Keywords : Flowable compomer, micro tensile bond strength, primary teeth

ORIGINAL ARTICLE URL