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Updated: Jun 9, 2026
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Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
Clinical study of frontal chewing patterns in various crossbite malocclusions
Qiong Nie1, Zuisei Kanno, Tianmin Xu
1Department of Orthodontics, Peking University, Beijing, China. qiongnie@yahoo.com
Summary
Patients with posterior crossbite exhibit more abnormal frontal chewing patterns, including reverse and reverse-crossing types, compared to those with anterior crossbite. These patterns are more frequent when associated with mandibular shift or prognathism.
Area of Science:
- Dentistry
- Orthodontics
- Biomechanics
Background:
- Crossbite malocclusions can affect masticatory function.
- Understanding frontal chewing patterns is crucial for orthodontic diagnosis and treatment planning.
Purpose of the Study:
- To investigate and clarify the frontal chewing patterns in individuals with various types of crossbite malocclusions.
Main Methods:
- A mandibular kinesiograph recorded masticatory movements in 106 crossbite subjects and 22 controls.
- Chewing patterns were classified into 8 types based on frontal incisor point movement.
- Crossbite subjects were categorized by anteroposterior and transverse positions.
Main Results:
- Crossbite groups showed significantly less normal chewing compared to controls.
- Posterior crossbite was associated with increased reverse chewing and decreased normal chewing versus anterior crossbite.
- Reverse and reverse-crossing chewing types were more prevalent on the affected side in cases with mandibular shift or prognathism.
Conclusions:
- Posterior crossbite is linked to a higher prevalence of abnormal frontal chewing types than anterior crossbite.
- Posterior crossbite may contribute to reverse and reverse-crossing chewing, particularly with accompanying mandibular deviations or arch discrepancies.
