Effect of alveolar bone support on zygomatic implants: a finite element analysis study

Area of Science:

• Oral and Maxillofacial Surgery
• Biomaterials Engineering
• Biomechanics

Background:

• Zygomatic implants offer a solution for severe maxillary atrophy.
• Understanding stress distribution is crucial for implant longevity.
• The role of maxillary alveolar bone in supporting zygomatic implants requires further investigation.

Purpose of the Study:

• To analyze the impact of maxillary alveolar bone on stress distribution in zygomatic implants.
• To compare stress patterns with and without alveolar bone support.

Main Methods:

• A 3D finite element model of a skull was created.
• Two models were developed: one with and one without maxillary alveolar bone support for zygomatic implants.
• Occlusal and lateral forces were applied, and maximum von Mises stresses were recorded.

Main Results:

• Models without alveolar bone support exhibited higher maximum stresses.
• Occlusal forces generated greater stress than lateral forces in the absence of alveolar support.
• Zygomatic bone experienced low stresses in both configurations.

Conclusions:

• Maxillary alveolar bone plays a beneficial role in distributing forces acting on zygomatic implants.
• Alveolar bone support enhances the stability and biomechanical performance of zygomatic implants.
• This finding has implications for surgical planning and implant design.