The Influence of Nanostructured Hydroxyapatite Surface in the Early Stages of Osseointegration: A Multiparameter Animal Study in Low-Density Bone

International Journal of Nanomedicine
Suelen Cristina SartorettoMonica Diuana Calasans-Maia

Abstract

The success rates of dental implants in low-density bone have been reported as a challenge, especially for early or immediate loading in the maxilla posterior area. Nanoscale architecture affects the roughness, surface area, surface energy of the implant and can enhance osseointegration. This study aimed to evaluate the implant-surface topography and biomechanical, histomorphometric, and histological bone responses to a new nanostructured hydroxyapatite surface placed in the iliac crest of sheep. Ten female sheep (2-4 years) received 30 implants (n=10/group): HAnano® coated (Epikut Plus®, S.I.N. Implant System, Sao Paulo, SP, Brazil), SLActive (BLX®, Straumann, Basel, Switzerland), and TiUnite (NobelActive®, Nobel Biocare, Göteborg, Sweden) surfaces. Scanning electron microscopy with energy-dispersive spectroscopy evaluated the implant surface topography, the insertion torque value, and resonance frequency analysis evaluated the primary stability, bone-implant contact, and bone-area fraction occupancy were evaluated after 14 and 28 days after implant placement. The surface morphology was considerably comparable between the implant groups'; however, the TiUnite® group presented a remarkable different surface. The SLActive® and T...Continue Reading

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Citations

Mar 23, 2021·Journal of Dental Research·W E Yang, H H Huang
Jul 24, 2021·Heliyon·J AlipalM I Idris
Jul 27, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Ernesto B Benalcázar JalkhLukasz Witek
Jul 31, 2021·Scientific Reports·Rafael Coutinho Mello-MachadoMônica Diuana Calasans-Maia

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Methods Mentioned

BETA
scanning electron microscopy
X-ray
light microscopy

Software Mentioned

HAnano
SLActive
Image J
Genesis
TiUnite
cellSens

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