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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Relationship between masticatory cycle morphology and unilateral crossbite in the primary dentition
Ecijo Sever1, Ljubo Marion, Maja Ovsenik
1Department of Fixed Prosthodontics, Medical Faculty, University of Ljubljana, Slovenia.
European Journal of Orthodontics
|December 2, 2010
Summary
Children with unilateral posterior crossbites (UPXBs) exhibit altered chewing patterns, with greater mouth opening and lateral jaw movements. Early intervention is recommended to normalize mastication for proper orofacial development.
Area of Science:
- Dentistry
- Orthodontics
- Biomedical Engineering
Background:
- Unilateral posterior crossbites (UPXBs) are common malocclusions in primary dentition.
- UPXBs can lead to abnormal condylar motion during mastication.
Purpose of the Study:
- To investigate chewing cycle characteristics in children with UPXBs.
- To compare chewing patterns on the crossbite and non-crossbite sides.
- To compare UPXB children's chewing patterns with those of children with normal occlusion.
Main Methods:
- Twenty children with UPXBs and 10 with normal occlusion participated.
- Chewing movements were recorded using the Sirognathograph computer analysing system (COSIG II).
- Chewing patterns were analyzed in two projection planes and compared using statistical tests.
Main Results:
- Children with UPXBs showed distinct chewing patterns on the crossbite and non-crossbite sides.
- Greater lateral deviation and wider mouth opening were observed in UPXB children.
- Reduced time in maximal intercuspation and more frequent reverse chewing cycles were noted on the crossbite side.
Conclusions:
- UPXBs significantly alter chewing cycle patterns in primary dentition.
- Early treatment is advised to correct masticatory dysfunction and support orofacial development.
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