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Related Experiment Video

Updated: Nov 11, 2025

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry
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Mediotrusive Occlusal Contacts: Best Evidence Consensus Statement.

Terry R Walton1, Danielle M Layton2

  • 1School of Dentistry, Faculty of Medical Sciences, University of Sydney, & Specialist private practice, Sydney, New South Wales, Australia.

Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
|March 30, 2021
PubMed
Summary
This summary is machine-generated.

Mediotrusive (MT) occlusal interferences can negatively impact jaw function and temporomandibular joint health. Avoiding MT interferences in therapeutic occlusion is recommended, but natural MT contacts should only be addressed if temporomandibular disorders are present.

Keywords:
Occlusionmediotrusive contactsmediotrusive interferencestemporomandibular joint disorders

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Area of Science:

  • Dental Occlusion
  • Temporomandibular Disorders (TMDs)
  • Biomechanics

Background:

  • Mediotrusive (MT) occlusal contacts are a source of confusion in dental literature and practice.
  • Understanding their impact on natural and therapeutic occlusion is crucial for patient care.

Purpose of the Study:

  • To determine if MT interferences are harmful in natural or therapeutic occlusion.
  • To address prevalence, jaw function, jaw dysfunction, and biomechanical models related to MT contacts.

Main Methods:

  • Systematic literature search in MEDLINE and Google Scholar for articles on MT interferences.
  • Included articles were reviewed for eligibility, with 47 selected for analysis.

Main Results:

  • Prevalence of MT interferences varies widely (0%-77%, median 16%) due to non-standardized methods.
  • MT interferences can alter mandibular biomechanics, potentially causing temporomandibular joint and muscle issues.

Conclusions:

  • MT interferences should be eliminated in therapeutic occlusion to prevent complications.
  • Naturally occurring MT interferences require intervention only when TMD signs/symptoms are present.
  • A biomechanical basis exists for MT interferences affecting temporomandibular joint morphology and function.