Mechanobiological modeling can explain orthodontic tooth movement: three case studies.

Area of Science:

• Biomechanical Engineering
• Orthodontics
• Computational Biology

Background:

• Increased demand for dental and medical treatments leads to complex orthodontic cases.
• Pathological conditions and medical therapies can complicate orthodontic treatment outcomes.
• Computer models offer a promising approach to understand these complex interactions.

Purpose of the Study:

• To investigate the impact of pathologies and medical therapies on orthodontic tooth movement using a mechanobiological model.
• To analyze three clinically relevant case studies: estrogen deficiency, OPG injections, and fluoride intake.

Main Methods:

• Utilized a previously established mechanobiological model of orthodontic tooth displacement.
• Simulated the effects of estrogen deficiency, OPG injections, and fluoride intake on tooth movement.
• Compared model predictions with experimental observations.

Main Results:

• Estrogen deficiency model predicted increased osteoclast activity and faster bone resorption, aligning with experimental findings.
• Model predicted reduced tooth movement with OPG injections and fluoride intake, consistent with experimental data.
• Discrepancies noted between model and experimental data regarding estrogen deficiency's effect on bone formation.

Conclusions:

• The mechanobiological model demonstrates the ability to conceptually describe the influence of various pathological conditions on orthodontic treatment.
• Further experimental validation is required for quantitative accuracy.
• The model shows potential for enhancing the understanding of complex orthodontic cases involving medical comorbidities.