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Home / Equine Research Bank / Front Bioeng Biotechnol / Temporomandibular joint biomechanics and equine incisor occl...
Frontiers in bioengineering and biotechnology2023; 11; 1249316; doi: 10.3389/fbioe.2023.1249316

Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance.

Abstract: In equine dentistry, the physiological incisor occlusal surface is visually perceived as a plane with a distinct inclination to the head's coronal plane, extending rostro-ventrally to caudo-dorsally. To better understand the formation of this inclined plane and its connection to dental wear, we investigated the hypothesis that it arises from masticatory movements and the considerable distance between mandibular articular heads and the incisor occlusal surfaces, acting as the three points of support for the mandibles. Leveraging data from a large-scale clinical study involving static and dynamic orthodontic measurements in horses, we approximated the mandibular movement range where incisor occlusion and dental wear occur. By introducing and testing a segment coordinate system, we explored possible angular deviations from the occlusal plane caused by mandibular roll and pitch rotations during two lateral mandibular movement patterns, protrusion and retrusion. Theoretical biomechanical calculations and simulations confirmed the visual perception of the incisor occlusal surface as a plane. To further examine our assumptions, we employed a simple mechanical simulator to assess incisor normal occlusion and provoked malocclusions (diagonal, smile, and frown bite) by modifying temporomandibular joint (TMJ) movement patterns. The results from clinical investigations were corroborated by both the theoretical analysis and mechanical simulations, strengthening our understanding of the biomechanical basis behind the physiological incisor occlusal plane maintenance in horses. These findings have significant implications for equine dental health and contribute to a thorough understanding of TMJ dynamics.
Copyright © 2023 Sterkenburgh, Hartl, Peham, Nowak, Kyllar and Kau.
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Publication Date: 2023-09-20 PubMed ID: 37799811PubMed Central: PMC10549988DOI: 10.3389/fbioe.2023.1249316Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research article explores the connection between the biomechanics of the temporomandibular joint and the maintenance of the occlusal plane in horse incisors. By combining data from a large-scale study with biomechanical calculations and simulations, the researchers have deepened our understanding of how masticatory movements influence dental wear.

Objective and Hypothesis

  • The researchers were investigating the formation of the inclined plane, which is observed in equine dentistry as the physiological incisor occlusal surface, and its connection to dental wear. Their hypothesis stated that this plane is formed due to masticatory movements and the significant distance between the mandibular articular heads and the incisor occlusal surfaces, which act as the three points of support for the mandibles.

Methods

  • Data was collected from a large-scale clinical study that involved static and dynamic orthodontic measurements in horses.
  • This information was used to approximate the range of mandibular movement where incisor occlusion and dental wear occur.
  • To understand possible angular deviations from the occlusal plane brought on by mandibular roll and pitch rotations, a segment coordinate system was introduced and tested during two lateral mandibular movement patterns: protrusion and retrusion.
  • The researchers also utilized theoretical biomechanical calculations and simulations.
  • A simple mechanical simulator was used to assess normal occlusion in incisors and provoked malocclusions like diagonal, smile, and frown bite by modifying temporomandibular joint (TMJ) movement patterns.

Results and Conclusion

  • The study confirms the visual perception of the incisor occlusal surface as a plane in equine dentistry. The results from the clinical studies agreed with both the theoretical biomechanical analysis and mechanical simulations.
  • This strengthens our understanding of the physiological basis behind the maintenance of the incisor occlusal plane in horses and gives us more knowledge about the dynamics of the temporomandibular joint (TMJ).
  • The implications of these findings are significant for equine dental health by confirming the biomechanical basis for certain dental wear patterns and occlusal plane maintenance.

Cite This Article

APA
Sterkenburgh TR, Hartl B, Peham C, Nowak M, Kyllar M, Kau S. (2023). Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance. Front Bioeng Biotechnol, 11, 1249316. https://doi.org/10.3389/fbioe.2023.1249316

Publication

Frontiers in bioengineering and biotechnology
ISSN: 2296-4185
NlmUniqueID: 101632513
Country: Switzerland
Language: English
Volume: 11
Pages: 1249316
PII: 1249316

Researcher Affiliations

Sterkenburgh, Tomas Rudolf
  • Polyclinic for Dental Preservation and Periodontology, University of Leipzig, Leipzig, Germany.
  • Department of Industrial Engineering, Business Administration and Statistics, DEGIN Doctoral Program, Universidad Politécnica de Madrid, Madrid, Spain.
Hartl, Bettina
  • Department of Pathobiology, Institute of Morphology, Vetmeduni Vienna, Vienna, Austria.
Peham, Christian
  • Department of Companion Animals and Horses, Movement Science Group, University Clinic for Horses, Vetmeduni Vienna, Vienna, Austria.
Nowak, Michael
  • Veterinary Practice Dr. M. Nowak, Equine Clinic Meerbusch, Meerbusch, Germany.
Kyllar, Michal
  • Department of Pathobiology, Institute of Morphology, Vetmeduni Vienna, Vienna, Austria.
Kau, Silvio
  • Department of Pathobiology, Institute of Morphology, Vetmeduni Vienna, Vienna, Austria.

Conflict of Interest Statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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