Enhanced Osseointegration between Bone to Implant Featuring Super Hydrophilic Nanoscale Dental Implant Surface Roughness – Myth or Reality

The development of nanoscale hydrophilic surface roughness on dental implants arose from limitations observed with conventional sandblasted, large-grit, acid-etched (SLA) surfaces. SLA surfaces provide microroughness that enhances mechanical interlocking and osseointegration; however, they exhibit slower healing times and reduced performance in compromised bone conditions. Nanoscale modifications introduce surface topographies that influence polarization of key cells, promoting cell signaling at the implant interface. This nano-level structuring improves osteoblast differentiation and accelerates bone formation by influencing cell-protein interactions beyond the capabilities of microrough surfaces. Additionally, studies demonstrated that hydrophilicity significantly enhances early biological responses by increasing surface wettability, which facilitates blood clot formation, protein adhesion, and initial cell attachment, which are critical steps for rapid osseointegration. Studies have shown that hydrophilic nanoscale surfaces achieve higher bone-to-implant contact (BIC) in early healing phases compared to SLA surfaces, making them advantageous for immediate loading protocols and patients with poor bone quality or systemic conditions. By combining nanoscale roughness with super hydrophilic property, these surfaces aim to shorten osseointegration healing time seen with SLA implants and expand clinical indications, representing an evolutionary step toward biomimetic implant design for improved long-term outcomes.