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Related Experiment Video

Updated: Jan 12, 2026

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3D Printed Beta-TCP Ceramic Bone Replacement Manufactured by Lithography-Based Ceramic Manufacturing: A Short-Term

Allison L Diaz1, Andrea Torroni1, Jackson L Flores1

  • 1Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine.

The Journal of Craniofacial Surgery
|November 3, 2025
PubMed
Summary
This summary is machine-generated.

Lithography-based ceramic manufacturing (LCM) created beta-tricalcium phosphate (β-TCP) scaffolds that successfully regenerated bone in rabbit mandibular defects. This novel additive manufacturing technique shows promise for bone defect repair.

Keywords:
Animal modelbeta-tricalcium phosphatebone defect repairbone replacementlithography-based ceramic manufacturing

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Additive Manufacturing

Background:

  • Clinical use of beta-tricalcium phosphate (β-TCP) is hindered by poor bone infiltration in bulk forms.
  • Novel additive manufacturing (AM) techniques like lithography-based ceramic manufacturing (LCM) offer improved control over scaffold architecture.

Purpose of the Study:

  • To evaluate the bone regenerative potential of 100% β-TCP scaffolds fabricated using LCM.
  • To assess the repair of critically sized mandibular defects in a rabbit model.

Main Methods:

  • Fabrication of β-TCP scaffolds using LCM.
  • Surgical implantation into critical-sized mandibular defects in skeletally mature rabbits.
  • Analysis of regenerated bone using micro-computer tomography (micro-CT) and histology.

Main Results:

  • LCM β-TCP scaffolds demonstrated bone regeneration, with approximately 8.6% regenerated bone and 33% remaining scaffold volume.
  • Histological analysis revealed vascularized woven and lamellar bone, with no adverse effects like ectopic ossification or significant inflammation.
  • Radiographic and histologic findings were comparable to native bone.

Conclusions:

  • LCM-fabricated β-TCP scaffolds effectively promote bone regeneration in critical-sized mandibular defects.
  • This AM technique allows for precise control over scaffold properties, enhancing bone integration.
  • LCM β-TCP shows potential as a biomaterial for craniofacial bone defect repair.