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"Association between posterior unilateral functional crossbite and asymmetrical spinal flexion: A prospective study".
Maria Grazia Piancino1, Giada Matacena2, Umberto Garagiola3
1Department of Surgical Sciences, Dental School, University of Turin, Turin, Italy, via Nizza 230, 10126, Turin, Italy.
Heliyon
|March 17, 2023
Summary
Unilateral posterior crossbite (UPC) is linked to unusual chewing and spine flexibility differences. This malocclusion may affect spinal posture and masticatory function, impacting overall health.
Area of Science:
- Orthodontics
- Biomechanics
- Pediatric Dentistry
Background:
- Unilateral posterior crossbite (UPC) with functional shift presents asymmetries affecting mastication and spinal flexibility.
- Marked asymmetrical muscular activation is associated with occlusal and structural imbalances.
Purpose of the Study:
- To investigate the association between UPC with functional shift and reverse chewing patterns.
- To determine if UPC influences spine flexion and spinal alignment.
Main Methods:
- Kinesiograph and electronic inclinometer (Spinal Mouse®) were used to record chewing patterns and spine alignment.
- 87 children with UPC and a control group were assessed for chewing patterns and spinal flexibility.
Main Results:
- UPC patients exhibited a higher incidence of anomalous/reverse chewing patterns on the crossbite side (p < 0.001).
- Significant differences in spine flexion angles were observed between the crossbite and non-crossbite sides in UPC patients (p < 0.001).
- The crossbite side demonstrated greater spinal flexibility compared to the non-crossbite side.
Conclusions:
- A correlation exists between UPC, asymmetrical chewing, and asymmetrical spinal flexion.
- Findings may enhance understanding of the link between malocclusion and spine posture, aiding diagnosis and treatment.
