Early Biological Response of a Ultra-Hydrophilic Implant Surface Activated by Salts and Dry Technology: In Vitro Study on MC3T3-E1 Osteogenic Cell Line

Abstract

New implant surfaces created by sandblasting and acid etching enhance osseointegration processes. Surface energy seems to be an aspect of paramount importance in the first phase of healing, supporting protein adsorption and cell adhesion, proliferation, differentiation and bone mineralization. New methods were introduced to preserve over time and improve surface energy such as wet storage or bioactivation through salts coating created with dry technology. Purpose of this study was to evaluate the osteogenic response of pre-osteoblast lineage cells to dry bioactivated surface. MC3T3-E1 osteogenic cell line were cultured on ABT (SLA surface) and NANO (SLA surface with dry bioactive technology)., cell adhesion assay, proliferation assay and cell morphology were performed. Despite both surface treatments were able to support regular morphology; cell adhesion and proliferation were statistically improved ( p.value<0,05) on ABT disks. Regardless of the encouraging effects on surface energy of dry bioactivation technology with salts, this results suggest that further investigations are needed to evaluate the exact role of salts after solubilitation during the early stages of healing and the possible interactions that may hinder cells adhesion, proliferation, differentiation.