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Related Experiment Video

Updated: Jun 25, 2026

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition

Published on: February 23, 2024

Posterior crossbite and functional changes. A systematic review.

Annicele da Silva Andrade¹, Gustavo Hauber Gameiro, Moara Derossi

¹Department of Pediatric Dentistry, University of Campinas, Piracicaba SP, Brazil.

The Angle Orthodontist

|February 17, 2009

Summary

Children with posterior crossbite exhibit altered masticatory muscle function, including reduced bite force and asymmetry. This condition is linked to temporomandibular disorders (TMD) symptoms.

Related Experiment Videos

Last Updated: Jun 25, 2026

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition

Published on: February 23, 2024

Area of Science:

Dental research
Orthodontics
Biomechanics

Background:

Posterior crossbite is a common malocclusion affecting children.
Masticatory muscle function is crucial for stomatognathic system development.

Purpose of the Study:

To systematically review literature on masticatory muscle functional changes in primary and mixed dentition posterior crossbite.
To identify associations between posterior crossbite and temporomandibular disorders (TMD).

Main Methods:

Systematic literature review of Medline database (1965-2008).
Inclusion of randomized controlled trials, controlled clinical trials, and clinical trials.
Evaluation of bite force, surface electromyography, and TMD signs/symptoms.

Main Results:

Eight studies met inclusion criteria.
Posterior crossbite associated with reduced bite force and asymmetrical muscle activity (increased temporalis, decreased masseter on crossbite side).
Significant link between posterior crossbite and TMD symptomatology observed.

Conclusions:

Functional changes in masticatory muscles are associated with posterior crossbite.
Further research is needed on the impact of these changes on stomatognathic system growth and development.