Marginal quality of a full-body bulk-fill composite placed with an universal adhesive system in etch-and-rinse and self-etch mode: an in vitrostudy

• Antonio Signore ^[2] ; Luca Solimei ^[1] ; Marianna-Georgievna Arakelyan ^[3] ; Alina-Vladimirova Arzukanyan ^[3] ; Nicola De Angelis ^[1] ; Andrea Amaroli ^[4]
  1. [1] University of Genoa

     University of Genoa

     Genoa, Italia

     
  2. [2] Department of Therapeutic Dentistry, Institute of Dentistry, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation; Department of Surgical and Diagnostic Sciences (D.I.S.C.), University of Genoa, Genoa, Italy
  3. [3] Department of Therapeutic Dentistry, Institute of Dentistry, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
  4. [4] Department of Therapeutic Dentistry, Institute of Dentistry, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation; Department of Orthopaedic Dentistry.Institute of Dentistry, I.M. Sechenov First. Moscow State Medical University. Trubetskaya str., 8, b. 2, 119992. Moscow, Russian Federation

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• Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 13, Nº. 8 (August), 2021, págs. 835-844
• Idioma: inglés
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• Resumen

  • Marginal seal of a nanohybrid bulk-fill composite compared to a nanohybrid conventional composite, using a universal adhesive (UA) applied in etch-and-rinse (ER) and self-etch (SE) mode was investigated.

    Thirty-six intact molars were selected and two standardized cavities in each tooth were prepared and allocated into four groups according to restorative material and etching strategy. All samples were placed in a 1% methylene blue solution for 24 h, then cut in the middle of the restorations obtaining two parts (n=144) and used for microscopic evaluation (50x) for dye penetration measurements.

    The data were analysed by ANOVA and Tukey post-hoc test (p<0.05). Marginal seal was influenced by adhesive strategy (p<0.05) but not from the composite used (p>0.05).

    Simplified restorations with nanohybrid bulk-fill composite showed comparable marginal leakage to incrementally placed nanohybrid composite. The UA used with a ER technique resulted in better marginal seal irrespective of the restorative material used.