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Bite force in pre-orthodontic children with unilateral crossbite.
1Department of Orthodontics, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark.
European Journal of Orthodontics
|March 14, 2002
Summary
Children with unilateral posterior crossbite have significantly lower bite force compared to their peers. This difference persists with age, highlighting the importance of early orthodontic intervention for optimal function.
Area of Science:
- Pediatric Dentistry
- Orthodontics
- Biometrics
Background:
- Unilateral posterior crossbite is a common dental anomaly in children.
- Limited research exists on the impact of crossbite on masticatory muscle function and bite force in pre-orthodontic children.
Purpose of the Study:
- To compare bite force in pre-orthodontic children with unilateral posterior crossbite to a matched control group.
- To investigate correlations between bite force, dental development, occlusal contacts, and temporomandibular disorder (TMD) symptoms.
Main Methods:
- A cross-sectional study involving 52 children (7-13 years old), divided into crossbite and control groups.
- Bite force measured at the first molar using a pressure transducer.
- Recorded TMD symptoms, signs, and number of teeth in occlusal contact.
Main Results:
- Bite force was significantly lower in the crossbite group compared to controls (P < 0.001).
- Fewer teeth in contact (P < 0.05) and higher muscle tenderness (P < 0.05) were observed in the crossbite group.
- Dental eruption stage, number of occlusal contacts, and unilateral crossbite were significant predictors of bite force.
Conclusions:
- Unilateral posterior crossbite is associated with reduced bite force and altered muscle function, independent of age and development.
- Early orthodontic treatment for unilateral posterior crossbite is recommended to improve masticatory function.