Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Mar-Apr;13(2):117-124.
doi: 10.1016/j.jobcr.2022.12.005. Epub 2022 Dec 18.

Orthodontic treatment of children with anterior open bite and posterior crossbite: An analysis of the stomatognathic system

Lígia Maria Napolitano Gonçalves  1 , Marcelo Palinkas  1   2 , Isabela Hallak Regalo  1 , Paula Napolitano Gonçalves  1 , Paulo Batista de Vasconcelos  1 , Mirian Aiko Nakane Matsumoto  3 , Selma Siéssere  1   2 , Simone Cecilio Hallak Regalo  1   2
Affiliations

Orthodontic treatment of children with anterior open bite and posterior crossbite: An analysis of the stomatognathic system

Lígia Maria Napolitano Gonçalves et al. J Oral Biol Craniofac Res. 2023 Mar-Apr.

Abstract

Dental malocclusions are deviations from normalities due to the inadequate growth and development of the dental arch which provides functional changes to the stomatognathic system. The aim of this longitudinal study was to evaluate the electromyographic activity (EMG) the masseter and temporalis muscles, strength of the orofacial tissues and occlusal force of children with anterior open bite (n = 15) and posterior crossbite (n = 20), 7 days after the removal of the orthodontic apparatus. A fixed horizontal palatal crib was used in the treatment of anterior open bite and the fixed appliances Hyrax or MacNamara was used in the treatment of posterior crossbite. EMG of the masticatory muscles was recorded using an electromyograph with wireless sensors during mandibular tasks. Habitual chewing was assessed using the integral of the linear envelope of the electromyographic signal in the masticatory cycles. The strength of the tongue and facial muscles was measured using the Iowa Oral Pressure Instrument. T-Scan was used to analyze the force of occlusal contact. Molar bite force was measured by digital dynamometer. Significant differences (p < 0.05) were found in the EMG data of the masseter and temporalis muscles in the static and dynamic mandibular tasks. There were no significant difference in strength of orofacial tissues, occlusal contact force and molar bite force 7 days after the removal of the orthodontic apparatus. The results of this study suggest that the orthodontic treatment of anterior open bite and posterior crossbite in children promoted functional alteration in the electromyographic activity of masseter and temporalis muscles.

Keywords: Anatomy; Malocclusion; Orthodontics; Pediatric dentistry; Stomatognathic system.

PubMed Disclaimer

Conflict of interest statement

None.

Figures

Image 1
Graphical abstract
Fig. 1
Fig. 1
Fixed horizontal palatal crib.
Fig. 2
Fig. 2
Appliance hyrax.
Fig. 3
Fig. 3
Appliance MacNamara.
Fig. 4
Fig. 4
TrignoTM wireless, EMG system, delsys.
Fig. 5
Fig. 5
Iowa oral performance instrument.
Fig. 6
Fig. 6
T-Scan digital occlusion analysis system.
Fig. 7
Fig. 7
Digital dynamometer, model IDDK.
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

References

    1. Akan B., Veli I. Comparison of dental arch and mandibular-maxillary base widths between true and pseudo-Class III malocclusions. Am J Orthod Dentofacial Orthop. 2017;151(2):317–323. doi: 10.1016/j.ajodo.2016.06.039. - DOI - PubMed
    1. Oka S., Kawanabe H., Yamanobe S., Fukui K., Baba Y., Deguchi T. Relationship between olfaction and maxillofacial morphology in children with malocclusion. Clin Exp Dent Res. 2021;7(1):33–39. doi: 10.1002/cre2.329. - DOI - PMC - PubMed
    1. Fu K., Fang S., Fan X., et al. Analysis of dental and basal bone arch form correlations in skeletal Class Ⅱ malocclusion. Am J Orthod Dentofacial Orthop. 2021;159(2):202–209. doi: 10.1016/j.ajodo.2019.12.026. e2. - DOI - PubMed
    1. Klostermann I., Kirschneck C., Lippold C., Chhatwani S. Relationship between back posture and early orthodontic treatment in children. Head Face Med. 2021;17(1):4. doi: 10.1186/s13005-021-00255-5. - DOI - PMC - PubMed
    1. Cenzato N., Nobili A., Maspero C. Prevalence of dental malocclusions in different geographical areas: scoping review. Dent J. 2021;9(10):117. doi: 10.3390/dj910011. - DOI - PMC - PubMed