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An Improved Mechanical Testing Method to Assess Bone-implant Anchorage

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Published on: February 10, 2014

Optimizing dental implant design: Structure, strength, and bone ingrowth.

Jenny Zwei-Chieng Chang^1,2, Jui-Ting Hsu^3,4,5, Ming-Jun Li⁶

¹School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan.

Journal of Dental Sciences

|April 14, 2025

Summary

Dental implant porosity influences bone growth and stability. Lower porous designs promote bone regeneration and strength, crucial for preventing peri-implantitis and ensuring long-term prosthesis success.

Keywords:

Biological and mechanical study Dental implant design Finite element analysis Porous

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3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects

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Published on: August 4, 2020

Area of Science:

Biomaterials science
Dental implantology
Biomechanics

Background:

Function-induced bone loss around dental implants can worsen peri-implantitis.
Identifying factors influencing marginal bone loss is critical for implant success.

Purpose of the Study:

To evaluate dental implant design concepts using finite element (FE) simulation and in-vitro analysis.
To assess the effects of implant design on stresses and strains in implants and surrounding bone.

Main Methods:

Analysis of five implant designs: full solid, upper porous, lower porous, lower porous: upper half, and lower porous: lower half.
Inclusion of stability measurements, 3D FE modeling, in-vitro mechanical testing, and bone remodeling simulations.

Main Results:

Full-solid design exhibited highest stress tolerance, followed by lower and upper porous designs.
Oblique forces increased stress concentration; upper porous design showed favorable bone strain but limited strength.
Lower porous implants matched full solid strength and enhanced marginal bone growth.

Conclusions:

Well-designed porous structures improve post-implantation bone growth.
Upper porous designs aid bone ingrowth but have reduced strength; lower porosity negatively impacts bone regeneration.