Kharouf, NajiSauro, SalvatoreAshi, TarekEid, AmmarMaguina, LeviZghal, JihedSekayan, NairyUCH. Departamento de OdontologíaProducción Científica UCH 20212022-03-292022-03-292021-03-16Kharouf, N., Ashi, T., Eid, A., Maguina, L., Zghal, J., Sekayan, N. et al. (2021). Does adhesive layer thickness and tag length influence short/long-term bond strength of universal adhesive systems? an in- vitro study. Applied Sciences, vol. 11, i. 6 (16 mar.), art. 2635. DOI: https://doi.org/10.3390/app110626352076-3417 (Electrónico)http://hdl.handle.net/10637/13569Este artículo se encuentra disponible en la siguiente URL: https://www.mdpi.com/2076-3417/11/6/2635En este artículo de investigación también participan: Rim Bourgi, Louis Hardan, Youssef Haikel y Davide Mancino.Este artículo pertenece al número especial "Developments and Applications of Dental Materials".(1) Background: This study investigated the effect of the adhesive layer thickness and the length of resin tags on dentin bond strength of five universal adhesives applied in self-etch mode. (2) Methods: One hundred and fifty extracted human third molars were used. Five different universal adhesives were applied in self-etch mode on the dentin surface. Half of the specimens were subjected to an aging procedure for six months. A shear bond strength (SBS) test was performed and the results were statistically analyzed with a t-test and one-way ANOVA test. Scanning electron microscopy (SEM) was executed to measure the adhesive layer thickness and tag depth. (3) Results: No statistical differences were found between the five adhesive systems after a 24 h storage period, regardless of layer thickness and tag depth (p < 0.05). After 6 months of aging in water at 37 C, Iperbond Max and Scotchbond Universal preserved the bond strength over time (p < 0.05), whilst the SBS of Iperbond Ultra, FuturaBond M+, and Ibond Universal decreased significantly after the aging period. No relation was observed between the adhesive thickness or tags’ length on SBS. (4) Conclusions: Within the limitation of this study, the stability over time of the bond strength of universal adhesives depends on their compositions regardless of the adhesive layer thickness and/or tags’ length.application/pdfenopen accessMateriales dentales - Propiedades.Dentina.Dental materials - Properties.Adhesivos dentales - Propiedades.Dentin.Dental adhesives - Properties.Artículohttps://doi.org/10.3390/app11062635https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es