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Related Experiment Videos

Bite force determination in adolescents with and without temporomandibular dysfunction.

L R Bonjardim1, M B D Gavião, L J Pereira

  • 1Departments of Oral Physiology and Pediatric Dentistry, Piracicaba Dental School-State University of Campinas, Piracicaba, SP, Brazil.

Journal of Oral Rehabilitation
|July 14, 2005
PubMed
Summary

Adolescents with temporomandibular dysfunction (TMD) exhibit reduced bite force. This decrease is particularly pronounced in girls and correlates with muscle tenderness, highlighting TMD

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Area of Science:

  • Oral health
  • Biomechanics
  • Adolescent health

Background:

  • Temporomandibular dysfunction (TMD) affects adolescents, potentially impacting oral functions.
  • Bite force is a key indicator of masticatory muscle function.
  • Understanding factors influencing bite force in adolescents is crucial for diagnosis and treatment.

Purpose of the Study:

  • To compare bite force between adolescents with and without TMD.
  • To investigate the influence of gender, age, height, and weight on bite force.
  • To explore the correlation between TMD severity and bite force.

Main Methods:

  • Adolescents were divided into control (n=20) and TMD (n=20) groups.
  • TMD was assessed using self-report, Dysfunction Index, and Palpation Index.

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  • Bite force was measured using a specialized transducer system.

    • Main Results:

    • Adolescents with TMD showed significantly lower bite force compared to controls.
    • Boys in the TMD group had greater bite force than girls in the same group.
    • Bite force in girls was significantly lower across groups and negatively correlated with TMD indices, especially muscle tenderness.

    Conclusions:

    • Decreased bite force is associated with TMD in adolescents.
    • Gender influences bite force magnitude in adolescents with TMD.
    • Muscle tenderness is a significant factor associated with reduced bite force in adolescent girls with TMD.