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Related Experiment Video

Updated: Mar 29, 2026

Calvarial Model of Bone Augmentation in Rabbit for Assessment of Bone Growth and Neovascularization in Bone Substitution Materials
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Injectable Nanofiber Gel Enhances Osseointegration in a Rabbit Model.

S Yaylacı1, H Eberliköse2, Y Yüregir3

  • 1Medical Biology Department, Faculty of Medicine, Lokman Hekim University, Ankara, Türkiye.

Journal of Dental Research
|March 28, 2026
PubMed
Summary
This summary is machine-generated.

A novel injectable peptide nanofiber interface enhances implant osseointegration and biomechanical stability. This biomaterial promotes faster bone healing and stronger bone-to-implant contact compared to traditional surfaces.

Keywords:
bone regenerationbone–implant interfacedental implantsosteoinductivepeptide nanofibers

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Orthopedic Surgery

Background:

  • High insertion torque can lead to delamination of conventional bioactive implant coatings, causing debris and hindering osseointegration.
  • Existing implant surfaces face challenges in achieving optimal biomechanical stability and bone formation.
  • There is a need for advanced interface materials to improve implant integration, especially in compromised bone conditions.

Purpose of the Study:

  • To develop and evaluate an injectable, self-assembling peptide nanofiber interface for enhancing implant biomechanical stability and accelerating bone formation.
  • To assess the osteoinductive, adhesive, and antimicrobial properties of the peptide amphiphile gel.
  • To compare the osseointegration and biomechanical performance of the nanofiber interface against a standard sand-blasted, large-grit, acid-etched (SLA) surface in a rabbit model.

Main Methods:

  • Fabrication of a multifunctional, injectable gel from self-assembling peptide amphiphiles.
  • Application of the nanofiber interface in the osteotomy site of custom titanium implants in a rabbit model.
  • Evaluation of osseointegration using micro-computed tomography (micro-CT) for bone-to-implant contact (BIC) and bone volume/total volume (BV/TV) at 3 and 5 weeks.
  • Assessment of biomechanical stability via reverse torque testing at 5 weeks.

Main Results:

  • Implants with the nanofiber interface showed significantly superior osseointegration at 5 weeks compared to SLA-treated implants.
  • Bone-to-implant contact (BIC) reached 58.7% with the nanofiber interface versus 50.5% for SLA (P < 0.001).
  • Bone volume/total volume (BV/TV) was significantly higher at 51.8% for the nanofiber group compared to 42.6% for SLA (P < 0.001).
  • Biomechanical stability was markedly improved, with the nanofiber group withstanding 53.2 N·cm of reverse torque, significantly higher than the 41.8 N·cm for the SLA group (P < 0.01).

Conclusions:

  • The injectable peptide nanofiber interface effectively enhances bone-implant integration and provides superior biomechanical stability.
  • This novel interface overcomes limitations of traditional coatings by preventing microdamage and acting as a conformal osteotomy liner.
  • The approach shows promise for improving long-term clinical outcomes, particularly in patients with poor bone quality or high implant failure risk.