Chewing Patterns and Muscular Activation in Deep Bite Malocclusion
Background: Deep bite, a frequent malocclusion with a high relapse rate, is associated with craniofacial features that need to be considered in the course of orthodontic treatment. Methods: This study included 81 patients with deep bite malocclusion (11.4 ± 1.1 [yr.mo]; M = 32 and F = 49), and 14 ag...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Journal of Clinical Medicine |
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| Online Access: | https://www.mdpi.com/2077-0383/11/6/1702 |
| _version_ | 1797470442332618752 |
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| author | Maria Grazia Piancino Alessandro Tortarolo Laura Di Benedetto Vito Crincoli Deborah Falla |
| author_facet | Maria Grazia Piancino Alessandro Tortarolo Laura Di Benedetto Vito Crincoli Deborah Falla |
| author_sort | Maria Grazia Piancino |
| collection | DOAJ |
| description | Background: Deep bite, a frequent malocclusion with a high relapse rate, is associated with craniofacial features that need to be considered in the course of orthodontic treatment. Methods: This study included 81 patients with deep bite malocclusion (11.4 ± 1.1 [yr.mo]; M = 32 and F = 49), and 14 age- and gender-matched controls (9.11 ± 1 [yr.mo]; M = 5 and F = 9). The patients with deep bite malocclusion were treated with functional therapy. The chewing cycles and masticatory muscle EMG activity were recorded concomitantly before treatment in both groups (<i>n</i> = 95). Following correction of the malocclusion, a second recording took place (<i>n</i> = 25). Results: The kinematic variables showed the same dependency on bolus hardness in those with deep bite and in the controls. The masticatory muscle EMG activity was increased in those with deep bite, but decreased as a result of functional treatment. The chewing patterns showed a tendency towards a reduced lateral component, which significantly increased after treatment, indicating that functional therapy impacts the neuromuscular coordination of mastication, as well as dental positioning. Conclusions: Deep bite is a complex malocclusion, involving alterations in chewing and masticatory muscle activity. Orthognathodontic treatment should not only consider and correct the teeth position, but should also address muscular hyperactivity. |
| first_indexed | 2024-03-09T19:36:23Z |
| format | Article |
| id | doaj.art-3876f7809500485689d91c75b11b7b9c |
| institution | Directory Open Access Journal |
| issn | 2077-0383 |
| language | English |
| last_indexed | 2024-03-09T19:36:23Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Clinical Medicine |
| spelling | doaj.art-3876f7809500485689d91c75b11b7b9c2023-11-24T01:51:09ZengMDPI AGJournal of Clinical Medicine2077-03832022-03-01116170210.3390/jcm11061702Chewing Patterns and Muscular Activation in Deep Bite MalocclusionMaria Grazia Piancino0Alessandro Tortarolo1Laura Di Benedetto2Vito Crincoli3Deborah Falla4Department of Surgical Sciences, C.I.R. Dental School, University of Turin, 10126 Turin, ItalyDepartment of Surgical Sciences, C.I.R. Dental School, University of Turin, 10126 Turin, ItalyDepartment of Surgical Sciences, C.I.R. Dental School, University of Turin, 10126 Turin, ItalyDepartment of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari, 70126 Bari, ItalyCentre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham B4 7DA, UKBackground: Deep bite, a frequent malocclusion with a high relapse rate, is associated with craniofacial features that need to be considered in the course of orthodontic treatment. Methods: This study included 81 patients with deep bite malocclusion (11.4 ± 1.1 [yr.mo]; M = 32 and F = 49), and 14 age- and gender-matched controls (9.11 ± 1 [yr.mo]; M = 5 and F = 9). The patients with deep bite malocclusion were treated with functional therapy. The chewing cycles and masticatory muscle EMG activity were recorded concomitantly before treatment in both groups (<i>n</i> = 95). Following correction of the malocclusion, a second recording took place (<i>n</i> = 25). Results: The kinematic variables showed the same dependency on bolus hardness in those with deep bite and in the controls. The masticatory muscle EMG activity was increased in those with deep bite, but decreased as a result of functional treatment. The chewing patterns showed a tendency towards a reduced lateral component, which significantly increased after treatment, indicating that functional therapy impacts the neuromuscular coordination of mastication, as well as dental positioning. Conclusions: Deep bite is a complex malocclusion, involving alterations in chewing and masticatory muscle activity. Orthognathodontic treatment should not only consider and correct the teeth position, but should also address muscular hyperactivity.https://www.mdpi.com/2077-0383/11/6/1702surface EMGchewing patternjaw musclesdeep biteFunction Generating Bite |
| spellingShingle | Maria Grazia Piancino Alessandro Tortarolo Laura Di Benedetto Vito Crincoli Deborah Falla Chewing Patterns and Muscular Activation in Deep Bite Malocclusion Journal of Clinical Medicine surface EMG chewing pattern jaw muscles deep bite Function Generating Bite |
| title | Chewing Patterns and Muscular Activation in Deep Bite Malocclusion |
| title_full | Chewing Patterns and Muscular Activation in Deep Bite Malocclusion |
| title_fullStr | Chewing Patterns and Muscular Activation in Deep Bite Malocclusion |
| title_full_unstemmed | Chewing Patterns and Muscular Activation in Deep Bite Malocclusion |
| title_short | Chewing Patterns and Muscular Activation in Deep Bite Malocclusion |
| title_sort | chewing patterns and muscular activation in deep bite malocclusion |
| topic | surface EMG chewing pattern jaw muscles deep bite Function Generating Bite |
| url | https://www.mdpi.com/2077-0383/11/6/1702 |
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