Symmetry of mandibular movements: A 3D electromagnetic articulography technique applied on asymptomatic participants

Lezcano, María Florencia; Días, Fernando José; Chuhuaicura, Priscila; Navarro, Pablo; Fuentes, Ramón

doi:10.1016/j.prosdent.2020.01.020

Cited by 12 publications

(9 citation statements)

References 24 publications

(43 reference statements)

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“…This made it possible to analyze movements in a more complex manner and to provide a characterization of the movement with reliable and accurate data [29].…”

Section: Discussionmentioning

confidence: 99%

Characterization of Mandibular Border Movements and Mastication in Each Skeletal Class Using 3D Electromagnetic Articulography: A Preliminary Study

et al. 2023

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Mandibular movement recording is relevant for the planning and evaluation of mandibular function. These movements can include mandibular border movements (MBM) or mastication. Our objective was to characterize the kinematics of MBM and mastication among skeletal classes I, II, and III in the three spatial planes. A descriptive cross-sectional study was conducted with 30 participants. Instructions were provided on how to form Posselt’s envelope and to perform masticatory. After data processing, we obtained numerical values for the areas, trajectories, and ranges of MBM that formed Posselt’s envelope and the values for speed, masticatory frequency, and the areas of each masticatory cycle. Significant differences were found in the area of Posselt’s envelope in the horizontal plane between skeletal classes I and III and in the range of right laterality between skeletal classes II and III. Mastication showed significant differences in the area of the masticatory cycles in the horizontal plane between classes I and III and between classes II and III. In conclusion, there were differences in MBM and mastication between skeletal classes III and I in the horizontal plane. This study supports the need to establish normal values for mandibular kinematics in skeletal class III.

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“…This made it possible to analyze movements in a more complex manner and to provide a characterization of the movement with reliable and accurate data [29].…”

Section: Discussionmentioning

confidence: 99%

Characterization of Mandibular Border Movements and Mastication in Each Skeletal Class Using 3D Electromagnetic Articulography: A Preliminary Study

et al. 2023

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“…This can open new perspectives on the diagnosis of the state of the TMJ since the trajectory and the form of the path of the mandible when performing the opening movement can be incorporated, both to analyze the maximum opening and the openings performed while chewing. Lezcano et al [ 16 ] conducted a study on the symmetry of mandibular movements where not only the ranges of movements but also the trajectory of the mandible during mastication and ‘Posselt’s envelope of motion’ were analyzed.…”

Section: Discussionmentioning

confidence: 99%

“…Electromagnetic articulography is an appropriate alternative for the three-dimensional analysis of mandibular movement. The AG501 provides the three-dimensional coordinates in a temporal and spatial resolution suitable for mandibular study [ 15 ], and the mounting of the sensors allows the patient to move naturally [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

A Novel Technique to Accurately Measure Mouth Opening Using 3D Electromagnetic Articulography

et al. 2022

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The mouth opening is an important indication of the functionality of the temporomandibular joint (TMJ). Mouth opening is usually evaluated by asking the patient to open their mouth as wide as possible and measuring the distance between the edges of the frontal incisors with a ruler or caliper. With the advancement of technology, new techniques have been proposed to record mandibular movement. The aim of this work is to present a novel technique based on 3D electromagnetic articulography and data postprocessing to analyze the mouth opening considering distances, trajectories, and angles. A maxilla-mandible phantom was used to simulate the mouth opening movement and fixed position mouth opening. This was recorded using the AG501 3D EMA (Carstens Medizinelektronik GmbH, Bovenden, Germany). The collected data was processed using Matlab (Mathworks, Natick, MA, USA). Fix and mobile mouth opening of 1, 2, 3 and 4 cm were simulated. It was possible to evaluate the mandibular opening through the vertical distance, the Euclidean distance, the trajectory, and the opening angle. All these values were calculated and the results were consistent with expectations. The trajectory was the highest value obtained while the vertical distance was the lowest. The angle increased as the mouth opening increased. This new technique opens up new possibilities in future research since oral opening can be analyzed using multiple variables without the need to use different devices or depending on the researcher’s experience. This will make it possible to establish which parameter presents significant differences between groups of patients or between patients who have undergone some treatment.

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“…Originally, the method stems from biomechanical studies on spine and knee joint. 26,27 To avoid occlusal interferences, micro-sensors were developed, which are put on the labial surface of the incisors. Electromagnetic JT-3D (BioResearch Associates Inc., Milwaukee, WI, USA), magnetic K7 CMS (Myotronics, Kent, WA, USA) or The Dental Motion Decoder system (DMS-System Ignident, Ludwigshafen am Rhein, Germany) work on this principle.…”

Section: Review Of Contemporary Jaw Motion Tracking Systemsmentioning

confidence: 99%

Jaw motion tracking systems – literature review

Jakubowska¹,

Szerszeń²,

Kostrzewa-Janicka³

2023

Prosthodontics

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Mandibular movement analysis is an integral part of the diagnosis and therapeutic processes in the fields of prosthodontics, orthodontics, or maxillofacial surgery and for many years has remained a subject of studies. For the stomatognathic system to work physiologically, during mastication, swallowing, and speaking, stability and proper dynamics of movement are crucial. The TMJ's intricate anatomy and biomechanics require complete harmony in order to be healthy and functional. A major implication might result from any problem or malfunction that impacts even one of the system's components, eventually triggering the onset of a temporomandibular disorder. Six degrees of freedom (6 DOF) -three translational and three rotational, which correspond to all conceivable motion axes of a rigid body in a three-dimensional space -are used to biomechanically describe the mandibular kinematics. Pure rotation or translation in TMJ function is a rare occurrence. For many years, in the field of traditional prosthodontics workflow, instrumentation in the form of mechanical articulators and face bows has been used. However, due to the articulator's basic design and, in some cases, the inability to

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Symmetry of mandibular movements: A 3D electromagnetic articulography technique applied on asymptomatic participants

Cited by 12 publications

References 24 publications

Characterization of Mandibular Border Movements and Mastication in Each Skeletal Class Using 3D Electromagnetic Articulography: A Preliminary Study

Characterization of Mandibular Border Movements and Mastication in Each Skeletal Class Using 3D Electromagnetic Articulography: A Preliminary Study

A Novel Technique to Accurately Measure Mouth Opening Using 3D Electromagnetic Articulography

Jaw motion tracking systems – literature review

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