A Chulalongkorn-Zurich collaboration compared three 3D-printed hydroxyapatite gyroid spacings in rabbits. The 0.50 mm design was mechanically stronger and bridged defects well, while 0.80/1.10 mm designs achieved more vertical height; the authors judged 1.10 mm the best compromise across both models. These are rabbit, not human, results.
Key findings
- Gyroid05 had higher compressive strength. Defect bridging improved by 44% with gyroid05 and 40% with gyroid11 versus gyroid08. In vertical augmentation, height gain increased by 39% with gyroid08 and 32% with gyroid11 versus gyroid05, making gyroid11 a cross-model compromise.
Why this matters globally
Microarchitecture tuning without changing material may enable indication-specific scaffolds for dental and orthopaedic augmentation rather than selection by bulk porosity alone.
Thai researcher contribution
Porawit Kamnoedboon and Franz E. Weber hold Faculty of Dentistry, Chulalongkorn University affiliations alongside University of Zurich biomaterials and dental centres, reflecting Thai-Swiss collaboration.
Limitations to consider
Rabbit numbers, follow-up, randomisation, blinding and full histomorphometry are absent from the abstract. Rabbit calvaria do not reproduce human jaw mechanics or healing, and 'universal' overstates evidence from one material, geometry family and two models.
Verify the original sources
BiomoleculesRead the original article↗DOI: 10.3390/biom16070974