Paula, Diego M. deSauro, SalvatoreLoguercio, Alessandro D.Reis, AlessandraAlves, Adyson H.Picanço, Paulo R.Yoshihara, KumikoFeitosa, Victor PinheiroUCH. Departamento de OdontologíaProducción Científica UCH 20212022-10-072022-10-072021-01-07Paula, D.M. de, Loguercio, A.D., Reis, A., Sauro, S., Alves, A.H., Picanço, P.R., Yoshihara, K., & Feitosa, V. P. (2021). Lack of neutralization of 10-MDP primers by zirconia may affect the degree of conversion of dual-cure resin cement. Operative Dentistry, vol. 46, i. 1 (jan./feb.), pp. 107–115. DOI: https://doi.org/10.2341/18-189-L0361-77341559-2863 (Electrónico)http://hdl.handle.net/10637/13940Este artículo se encuentra disponible en la siguiente URL: https://meridian.allenpress.com/operative-dentistry/article-abstract/46/1/107/464240/Lack-of-Neutralization-of-10-MDP-Primers-by?redirectedFrom=fulltextObjective: To assess the effects of different concentrations of 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP) included in experimental ceramic primers on the degree of conversion (DC) and microshear bond strength (μSBS) of a dual-cure resin cement, and on the acidity neutralization potential of zirconia (ZrO2) in comparison to hydroxyapatite (HAp). Methods: Experimental ceramic primers were formulated using 5 wt%, 10 wt%, 20 wt%, or 40 wt% 10-MDP as an acidic functional monomer and camphorquinone (CQ)/amine or 1-phenyl-1,2- propanedione (PPD) as a photoinitiator system. Clearfil Ceramic Primer (Kuraray Dental, Tokyo, Japan) was used as the commercial control. Micro- Raman spectroscopy was used to assess the DC of uncured and light-cured resin cements applied onto primer-treated ZrO2 surfaces. The μSBS and pH of primers were assayed in a universal testing machine and by a digital pH meter (Tec-3MP; Tecnal, Piracicaba, Brazil), respectively. Statistical analysis was performed by one-way analysis of variance (ANOVA) and Tukey’s test (p<0.05). Results: DC was not affected until a concentration of 10% 10-MDP in CQ primer and 5% 10-MDP in PPD primer was reached, when compared with the positive control (p>0.05). Groups 10-MDP 5% in CQ and PPD primers showed the highest μSBS compared with the positive control (p>0.05); however, higher concentrations of 10-MDP induced significant DC and μSBS reduction (p<0.05). HAp neutralized 10-MDP primers, but ZrO2 provided higher acidity to the primers’ pH. Conclusion: 10-MDP monomer should be used in low concentrations in ZrO2 primers to avoid reduction of the polymerization and bond strength of resin cement.application/pdfenopen accessGomas y resinas sintéticas - Aplicaciones en Odontología.Gums and resins, synthetic in Dentistry.Cementos dentales.Dental materials.Cerámica dental.Dental ceramics.Materiales dentales.Dental cements.Artículohttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es