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March 6, 2026Journal of Dentistry0 citationsOpen Access

Automated cutaneous landmark prediction based on CBCT-derived skeletal landmarks

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BBBenedetta BaldiniRJReinhilde JacobsGBGiuseppe Baselli

Key Points

  • This study aims to evaluate the ability of AI algorithms to predict facial landmark positions from skeletal landmarks for surgical and forensic applications.
  • Annotated 137 cone-beam computed tomography scans with skeletal and facial landmarks.
  • Evaluated five AI models: linear regression, random forest, and three neural networks.
  • Measured mean Euclidean error between predicted and actual landmark positions.
  • Linear regression demonstrated the lowest prediction error with 2.65±1.36 mm for Sellion.
  • Right Ala and left Ala predictions had errors of 2.16±0.79 mm and 1.79±0.72 mm, respectively.
  • Confirmed the viability of AI for estimating facial landmarks from skeletal data.

Abstract

This study explored the potential of artificial intelligence (AI) to predict cutaneous landmark positions from skeletal landmarks, with applications in maxillofacial surgery planning and forensic reconstruction. A dataset of 137 cone-beam computed tomography scans was annotated with skeletal landmarks (Nasion, Sella, Menton, and bilateral Gonion) as model inputs and facial landmarks (Sellion and bilateral Ala) as prediction targets. Five AI models were evaluated: linear regression (LR), random forest and three feed-forward neural network architectures. The LR model outperformed other approaches, achieving a mean Euclidean error between the predicted and actual landmark positions of 2.65±1.36 mm for Sellion and 2.16±0.79 and 1.79±0.72 mm for right and left Ala, respectively. This study confirms the feasibility of using AI to estimate cutaneous landmarks from skeletal data. The approach shows promise for improving maxillofacial surgical planning and forensic analyses, offering an automated prediction of the treatment outcome and data for facial reconstruction. Future work could refine model architectures for broader clinical adoption and test the model on clinical case.

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Cite This Study

Baldini et al. (2026) studied this question.

synapsesocial.com/papers/69aa70a9531e4c4a9ff5ab0bhttps://doi.org/10.1016/j.jdent.2026.106381
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