Comparisons of chewing rhythm, craniomandibular morphology, body mass and height between mothers and their biological daughters

Cho, Catherine; Louie, Ke’ale W.; Maawadh, Ahmed; Gerstner, Geoffrey E.

doi:10.1016/j.archoralbio.2015.08.004

Cited by 6 publications

(13 citation statements)

References 42 publications

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“…Other studies use movement recording systems based on video systems [ 3 , 33 – 35 ] which offer the advantages of low cost and greater freedom of movement since they do not require a facial arch or any other structure fitted to the subject's head. However, although these studies can generate large amounts of data, the data is difficult to interpret and the accuracy of measurements is impaired.…”

Section: Discussionmentioning

confidence: 99%

“…Rhythmic jaw movements are referred to as masticatory cycles or mandibular cycles, with each cycle consisting of two components: mouth opening and mouth closing. Each of these components can usually be subdivided into phases, for example, slow and fast opening, slow and fast closing [ 3 ]. The mastication sequence can be divided into three stages: early, middle, and late, in which chewing gradually changes [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

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Systematic Standardized and Individualized Assessment of Masticatory Cycles Using Electromagnetic 3D Articulography and Computer Scripts

Fuentes

Arias

Lezcano

et al. 2017

BioMed Research International

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Masticatory movements are studied for decades in odontology; a better understanding of them could improve dental treatments. The aim of this study was to describe an innovative, accurate, and systematic method of analyzing masticatory cycles, generating comparable quantitative data. The masticatory cycles of 5 volunteers (Class I, 19 ± 1.7 years) without articular or dental occlusion problems were evaluated using 3D electromagnetic articulography supported by MATLAB software. The method allows the trajectory morphology of the set of chewing cycles to be analyzed from different views and angles. It was also possible to individualize the trajectory of each cycle providing accurate quantitative data, such as number of cycles, cycle areas in frontal view, and the ratio between each cycle area and the frontal mandibular border movement area. There was a moderate negative correlation (−0.61) between the area and the number of cycles: the greater the cycle area, the smaller the number of repetitions. Finally it was possible to evaluate the area of the cycles through time, which did not reveal a standardized behavior. The proposed method provided reproducible, intelligible, and accurate quantitative and graphical data, suggesting that it is promising and may be applied in different clinical situations and treatments.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Systematic Standardized and Individualized Assessment of Masticatory Cycles Using Electromagnetic 3D Articulography and Computer Scripts

Fuentes

Arias

Lezcano

et al. 2017

BioMed Research International

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“…The masticatory function integrates the stomatognathic system components, such as the muscles, temporomandibular joint (TMJ), tongue, palate, salivary glands, periodontal, and teeth [ 7 ]. Rhythmic jaw movements are referred to as masticatory or chewing cycles; each of these cycles consists of two components: mouth opening and closing [ 2 ]. After food has been chopped, it is transported from the anterior region of the mouth to the occlusal surface of the posterior teeth, where crushing and grinding occur for a number of chewing cycles [ 1 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

A New Tridimensional Insight into Geometric and Kinematic Characteristics of Masticatory Cycles in Participants with Normal Occlusion

Fuentes

Arias

Lezcano

et al. 2018

BioMed Research International

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The aim of this study was to analyze the general, geometric, and kinematic characteristics of the masticatory cycle's movements in a tridimensional way, using a method developed by our study group to provide a new insight into the analysis of mandibular movements due to advancement in the potential of computational analysis. Ten individuals (20.1 ± 2.69 years), molar class I, without mandibular movement problems participated in this study. The movements of the masticatory cycles, frontal and sagittal mandibular border movements, were recorded using 3D electromagnetic articulography and processed with computational scripts developed by our research group. The number of chewing cycles, frequency (cycles/s), chewing cycle areas/mandibular border movements areas ratios, and the mouth opening and closing speeds on the 3D trajectory of the chewing cycle were compared. The cycles were divided and analyzed in thirds. The masticatory cycles showed high variation among the individuals (21.6 ± 9.4 cycles); the frequency (1.46 ± 0.21 cycles/s) revealed a moderate positive correlation (R = 0.52) with the number of cycles. The frontal area ratios between the cycle area and the mandibular border movement presented higher values in the first third (6.65%) of the masticatory cycles, and the ratios of sagittal areas were higher and more variable (first, 7.67%; second, 8.06%; and third, 10.04%) than the frontal view. The opening and closing mouth speeds were greater in the second third of the masticatory cycles (OS, 57.82 mm/s; CS, 58.34 mm/s) without a significant difference between the opening and closing movements when the same thirds were evaluated. Further studies are necessary to improve the understanding of the masticatory cycles regarding the standardization of parameters and their values.

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“…Chewing is a complex sum of many combined horizontal and vertical movements of the jaw. These are called chewing cycles [1,2]. Chewing activity is controlled by a central pattern generator which is located in the brainstem.…”

Section: Introductionmentioning

confidence: 99%

“…Chewing activity is controlled by a central pattern generator which is located in the brainstem. Peripheral stimuli, such as chewing forces, as well as feedback loops supplement the precise function of the masticatory system [1][2][3][4][5]. Most people have a preferred chewing side (PCS) so that chewing occurs mainly on one side, left or right [6].…”

Section: Introductionmentioning

confidence: 99%

Facial asymmetry and chewing sides in twins

Heikkinen

Vuollo

Harila

et al. 2021

Acta Odontologica Scandinavica

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Objective: To resolve how the preferred chewing side (PCS) affects facial asymmetry in twins, whether there are differences between monozygotic (MZ) and dizygotic (DZ) twins, and whether the twins with PCS have more asymmetric faces compared to symmetrically chewing twins. Material and methods: The study included 106 Lithuanian twin pairs of the same sex, 59 MZ and 47 DZ pairs. The data were analysed from facial 3D images and manually added landmarks. 3D images were analysed by Rapidform2006 software and statistical analyses were done by using the R software environment version 4.1.0. Results: The contralateral effect of PCS and larger chin side was dominant among right and non-right side chewing twins. Being female increased the whole face symmetry. Conclusion:The volume of the chin becomes larger on the side opposite to the twins' habitual chewing side. As the results are quite similar in both twin types, functional factors are more prominent than heredity.

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Comparisons of chewing rhythm, craniomandibular morphology, body mass and height between mothers and their biological daughters

Cited by 6 publications

References 42 publications

Systematic Standardized and Individualized Assessment of Masticatory Cycles Using Electromagnetic 3D Articulography and Computer Scripts

Systematic Standardized and Individualized Assessment of Masticatory Cycles Using Electromagnetic 3D Articulography and Computer Scripts

A New Tridimensional Insight into Geometric and Kinematic Characteristics of Masticatory Cycles in Participants with Normal Occlusion

Facial asymmetry and chewing sides in twins

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