Correlations Between Mandibular Kinematics and Electromyography During the Masticatory Cycle: An Observational Study by Digital Analysis
The analysis of the masticatory cycle plays a fundamental role in studying the functions of the stomatognathic system and evaluating temporomandibular dysfunctions (TMD). The primary objective of this study is to investigate the complex interplay between mandibular kinematics and surface electromyog...
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2024-11-01
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| author | Alessandro Nota Laura Pittari Francesco Manfredi Monticciolo Alessia Claudia Lannes Simona Tecco |
| author_facet | Alessandro Nota Laura Pittari Francesco Manfredi Monticciolo Alessia Claudia Lannes Simona Tecco |
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| description | The analysis of the masticatory cycle plays a fundamental role in studying the functions of the stomatognathic system and evaluating temporomandibular dysfunctions (TMD). The primary objective of this study is to investigate the complex interplay between mandibular kinematics and surface electromyography (sEMG) activity during the masticatory cycle using advanced 4D dentistry technology in 22 healthy subjects (without TMD). By employing electromyography, it becomes feasible to capture the electrical activity of the masticatory muscles throughout the chewing process. The BTS TMJOINT (© 2023 BTS Bioengineering, Garbagnate Milanese, MI, Italy) electromyograph was utilized in this study. Mandibular tracking, on the other hand, allows for recording the movements of the mandible during chewing and condylar slopes. This latest technology (ModJaw<sup>®</sup>, Tech in motion™, Villeurbanne, France) utilizes motion sensors placed on the jaw to accurately track three-dimensional movements, including jaw opening, closing, and lateral movements. Nowadays, in clinical gnathology, it is common practice to examine masticatory function by analyzing mandibular kinematics and muscle contraction as distinct entities. Similarly, the results obtained from these analyses are typically assessed independently. The investigation of a correlation between electromyography data and mandibular kinematics during the masticatory cycle could provide several advantages for clinicians in diagnosis and lead to a combined analysis of muscle activities and intraarticular dynamics. In conclusion, it can be inferred from the results obtained in the present study that the chewing cycle with a greater vertical movement results in increased masseter muscular activity, and condylar slopes are positively correlated to an increase in temporalis muscle activation. This comprehensive approach can provide valuable insights into the relationship between muscle activity and mandibular movement, enabling clinicians to gain a deeper understanding of the functional dynamics of the stomatognathic system. |
| format | Article |
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| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-2b52e4a099214b5791c5985f5ef79e562025-08-20T02:14:15ZengMDPI AGApplied Sciences2076-34172024-11-011421999610.3390/app14219996Correlations Between Mandibular Kinematics and Electromyography During the Masticatory Cycle: An Observational Study by Digital AnalysisAlessandro Nota0Laura Pittari1Francesco Manfredi Monticciolo2Alessia Claudia Lannes3Simona Tecco4Department of Dentistry, Dental School, Vita-Salute San Raffaele University, IRCCS San Raffaele Hospital, 20132 Milan, ItalyDepartment of Dentistry, Dental School, Vita-Salute San Raffaele University, IRCCS San Raffaele Hospital, 20132 Milan, ItalyDepartment of Dentistry, Dental School, Vita-Salute San Raffaele University, IRCCS San Raffaele Hospital, 20132 Milan, ItalyDepartment of Dentistry, Dental School, Vita-Salute San Raffaele University, IRCCS San Raffaele Hospital, 20132 Milan, ItalyDepartment of Dentistry, Dental School, Vita-Salute San Raffaele University, IRCCS San Raffaele Hospital, 20132 Milan, ItalyThe analysis of the masticatory cycle plays a fundamental role in studying the functions of the stomatognathic system and evaluating temporomandibular dysfunctions (TMD). The primary objective of this study is to investigate the complex interplay between mandibular kinematics and surface electromyography (sEMG) activity during the masticatory cycle using advanced 4D dentistry technology in 22 healthy subjects (without TMD). By employing electromyography, it becomes feasible to capture the electrical activity of the masticatory muscles throughout the chewing process. The BTS TMJOINT (© 2023 BTS Bioengineering, Garbagnate Milanese, MI, Italy) electromyograph was utilized in this study. Mandibular tracking, on the other hand, allows for recording the movements of the mandible during chewing and condylar slopes. This latest technology (ModJaw<sup>®</sup>, Tech in motion™, Villeurbanne, France) utilizes motion sensors placed on the jaw to accurately track three-dimensional movements, including jaw opening, closing, and lateral movements. Nowadays, in clinical gnathology, it is common practice to examine masticatory function by analyzing mandibular kinematics and muscle contraction as distinct entities. Similarly, the results obtained from these analyses are typically assessed independently. The investigation of a correlation between electromyography data and mandibular kinematics during the masticatory cycle could provide several advantages for clinicians in diagnosis and lead to a combined analysis of muscle activities and intraarticular dynamics. In conclusion, it can be inferred from the results obtained in the present study that the chewing cycle with a greater vertical movement results in increased masseter muscular activity, and condylar slopes are positively correlated to an increase in temporalis muscle activation. This comprehensive approach can provide valuable insights into the relationship between muscle activity and mandibular movement, enabling clinicians to gain a deeper understanding of the functional dynamics of the stomatognathic system.https://www.mdpi.com/2076-3417/14/21/9996chewing cycledigital dentistryelectromyographyjaw-trackingmasticatory systemtemporo-mandibular disorders |
| spellingShingle | Alessandro Nota Laura Pittari Francesco Manfredi Monticciolo Alessia Claudia Lannes Simona Tecco Correlations Between Mandibular Kinematics and Electromyography During the Masticatory Cycle: An Observational Study by Digital Analysis Applied Sciences chewing cycle digital dentistry electromyography jaw-tracking masticatory system temporo-mandibular disorders |
| title | Correlations Between Mandibular Kinematics and Electromyography During the Masticatory Cycle: An Observational Study by Digital Analysis |
| title_full | Correlations Between Mandibular Kinematics and Electromyography During the Masticatory Cycle: An Observational Study by Digital Analysis |
| title_fullStr | Correlations Between Mandibular Kinematics and Electromyography During the Masticatory Cycle: An Observational Study by Digital Analysis |
| title_full_unstemmed | Correlations Between Mandibular Kinematics and Electromyography During the Masticatory Cycle: An Observational Study by Digital Analysis |
| title_short | Correlations Between Mandibular Kinematics and Electromyography During the Masticatory Cycle: An Observational Study by Digital Analysis |
| title_sort | correlations between mandibular kinematics and electromyography during the masticatory cycle an observational study by digital analysis |
| topic | chewing cycle digital dentistry electromyography jaw-tracking masticatory system temporo-mandibular disorders |
| url | https://www.mdpi.com/2076-3417/14/21/9996 |
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