Zirconia Hybrid Dental Implants Influence the Biological Properties of Neural Crest-Derived Mesenchymal Stromal Cells

Author:

Tagliaferri Nadia12,Pisciotta Alessandra1ORCID,Orlandi Giulia1ORCID,Bertani Giulia12,Di Tinco Rosanna1,Bertoni Laura1ORCID,Sena Paola1ORCID,Lunghi Alice34,Bianchi Michele5ORCID,Veneri Federica1ORCID,Bellini Pierantonio1ORCID,Bertacchini Jessika1,Conserva Enrico1ORCID,Consolo Ugo1ORCID,Carnevale Gianluca1ORCID

Affiliation:

1. Department of Surgery, Medicine, Dentistry and Morphological Sciences with Interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, 41124 Modena, Italy

2. PhD Program in Clinical and Experimental Medicine, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy

3. Center for Translational Neurophysiology of Speech and Communication, Fondazione Istituto Italiano di Tecnologia, 44121 Ferrara, Italy

4. Section of Physiology, University of Ferrara, 44121 Ferrara, Italy

5. Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy

Abstract

Dental implants are regularly employed in tooth replacement, the good clinical outcome of which is strictly correlated to the choice of an appropriate implant biomaterial. Titanium-based implants are considered the gold standard for rehabilitation of edentulous spaces. However, the insurgence of allergic reactions, cellular sensitization and low integration with dental and gingival tissues lead to poor osseointegration, affecting the implant stability in the bone and favoring infections and inflammatory processes in the peri-implant space. These failures pave the way to develop and improve new biocompatible implant materials. CERID dental implants are made of a titanium core embedded in a zirconium dioxide ceramic layer, ensuring absence of corrosion, a higher biological compatibility and a better bone deposition compared to titanium ones. We investigated hDPSCs’ biological behavior, i.e., cell adhesion, proliferation, morphology and osteogenic potential, when seeded on both CERID and titanium implants, before and after cleansing with two different procedures. SEM and AFM analysis of the surfaces showed that while CERID disks were not significantly affected by the cleansing system, titanium ones exhibited well-visible modifications after brush treatment, altering cell morphology. The proliferation rate of DPSCs was increased for titanium, while it remained unaltered for CERID. Both materials hold an intrinsic potential to promote osteogenic commitment of neuro-ectomesenchymal stromal cells. Interestingly, the CERID surface mitigated the immune response by inducing an upregulation of anti-inflammatory cytokine IL-10 on activated PBMCs when a pro-inflammatory microenvironment was established. Our in vitro results pave the way to further investigations aiming to corroborate the potential of CERID implants as suitable biomaterials for dental implant applications.

Funder

Myplant Dental Italia

“Centro di verifica e ricerca di nuove tecnologie e materiali in odontoiatria (CRIO)” of the University of Modena and Reggio Emilia

Publisher

MDPI AG

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