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Related Experiment Videos

What dentition assures oral function?

Klaus Gotfredsen1, Angus W G Walls

  • 1Department of Prosthetic Dentistry, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark. klg@odont.ku.dk

Clinical Oral Implants Research
|June 28, 2007
PubMed
Summary
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Maintaining at least 20 natural teeth is crucial for optimal oral function, including chewing and aesthetics. This level ensures adequate masticatory ability and satisfaction, supporting overall oral health.

Area of Science:

  • Dental Science
  • Oral Health Research
  • Functional Anatomy

Background:

  • Oral function is multifaceted, encompassing mastication, aesthetics, psychosocial well-being, and phonetics.
  • The number and arrangement of natural teeth significantly influence these functional aspects.
  • Understanding the relationship between dentition and oral function is key to maintaining quality of life.

Purpose of the Study:

  • To evaluate the relationship between the number of natural teeth and various aspects of oral function.
  • To determine the minimum number of teeth required for adequate oral function.
  • To synthesize current literature on dentition and its impact on masticatory, aesthetic, and psychosocial parameters.

Main Methods:

  • A comprehensive literature search was conducted using PubMed and relevant keywords.

Related Experiment Videos

  • Citations were screened and selected based on predefined inclusion criteria.
  • Data from 83 selected articles were extracted and analyzed to review oral function areas.

    • Main Results:

    • Masticatory efficiency and ability correlate positively with the number of teeth, with at least 20 teeth (9-10 pairs) being adequate.
    • Tooth loss, especially anterior teeth, impairs aesthetics and satisfaction; premolar dentition is often sufficient for satisfaction.
    • Adequate occlusal support requires 3-6 functional posterior units, depending on the pattern of tooth loss; no link found with temporomandibular dysfunction symptoms.

    Conclusions:

    • The World Health Organization's goal of maintaining at least 20 natural teeth is supported by evidence for assuring acceptable oral function.
    • Preserving a minimum of 20 teeth throughout life is recommended for optimal masticatory function, aesthetics, and psychosocial well-being.
    • This level of dentition supports overall oral health and function across diverse populations.