Bond strength between a high-performance thermoplastic and a veneering resin

Autor: Nina Lümkemann, Marlis Eichberger, Bogna Stawarczyk
Rok vydání: 2020
Předmět:
Zdroj: The Journal of Prosthetic Dentistry. 124:790-797
ISSN: 0022-3913
DOI: 10.1016/j.prosdent.2019.10.017
Popis: Statement of problem High-performance thermoplastics have been adopted as framework materials. However, their bond strength to an esthetic veneering material is unclear. Purpose The purpose of this in vitro study was to test the tensile bond strength (TBS) between an aryl-ketone polymer (Ultaire AKP) and veneering resins. Material and methods AKP substrates (N=324) were prepared, airborne-particle abraded (Al2O3, 50 μm, 0.2 MPa), and divided into 9 groups (n=36) with different bonding systems (visio.link, Adhese Universal, All-Bond Universal, CLEARFIL UNIVERSAL BOND, G-Premio BOND, iBOND Universal, ONE COAT 7 UNIVERSAL, Scotchbond Universal) and without a bonding system as a control. Each group was further divided for opaquer (n=18). Further subdivision followed according to flowable or paste veneering resin (n=9). Specimens were stored in distilled water for 24 hours at 37 °C and thermocycled (×5000, 5/55 °C). TBS was measured and analyzed with the Kolmogorov-Smirnov test and 3-way ANOVA with partial eta squared (ηP2), followed by the Kruskal-Wallis and Mann-Whitney-U tests. Relative frequency of failure types was analyzed with the Chi2-test and a Ciba-Geigy table. Results The highest impact on TBS was exerted by the adhesive (ηP2=0.458, P Conclusions The application of opaquer increased TBS for all universal adhesives. Using opaquer and flowable veneering resin is beneficial for bonding to Ultaire AKP.
Databáze: OpenAIRE