Motor behavior during the first chewing cycle in subjects with fixed tooth‐ or implant‐supported prostheses

Grigoriadis, Joannis; Trulsson, Mats; Svensson, Krister G.

doi:10.1111/clr.12559

Cited by 16 publications

(21 citation statements)

References 50 publications

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“…However, prosthodontic treatment may still fail to fully restore natural oral function . Clinical observations and research indicate that mere fabricating dental prosthesis to manage or rehabilitate edentulism does not necessarily guarantee automatic improvement of patient's sensory and motor function, or successful adaptation to the new sensorimotor condition . Lack of simple and clinically viable methods for subjective evaluation or use of non‐standardised methods across different studies makes it difficult to compare and quantify the magnitude of the problem .…”

Section: Need For Functional Oral Rehabilitationmentioning

confidence: 99%

“…Lack of simple and clinically viable methods for subjective evaluation or use of non‐standardised methods across different studies makes it difficult to compare and quantify the magnitude of the problem . Further, studies have shown discrepancies in chewing efficiency and impaired sensorimotor control associated with people rehabilitated with dental prosthesis . It has been suggested that edentulous patients despite wearing well‐made dental prosthesis have difficulties in chewing hard and tough food.…”

Section: Need For Functional Oral Rehabilitationmentioning

confidence: 99%

“…These patients demonstrate an impaired adaptation of jaw muscle activity, especially when biting on hard food. 36 Dental prosthesis patients also show impaired force control, leading to inadequate control of food morsel during biting and chewing …”

Section: Need For Functional Oral Rehabilitationmentioning

confidence: 99%

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Bite or brain: Implication of sensorimotor regulation and neuroplasticity in oral rehabilitation procedures

Kumar

Kothari

Grigoriadis

et al. 2018

J of Oral Rehabilitation

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Tooth loss, decreased mass and strength of the masticatory muscles leading to difficulty in chewing have been suggested as important determinants of eating and nutrition in the elderly. To compensate for the loss of teeth, in particular, a majority of the elderly rely on dental prosthesis for chewing. Chewing function is indeed an important aspect of oral health, and therefore, oral rehabilitation procedures should aim to restore or maintain adequate function. However, even if the possibilities to anatomically restore lost teeth and occlusion have never been better; conventional rehabilitation procedures may still fail to optimally restore oral functions. Perhaps this is due to the lack of focus on the importance of the brain in the rehabilitation procedures. Therefore, the aim of this narrative review was to discuss the importance of maintaining or restoring optimum chewing function in the superageing population and to summarise the emerging studies on oral motor task performance and measures of cortical neuroplasticity induced by systematic training paradigms in healthy participants. Further, brain imaging studies in patients undergoing or undergone oral rehabilitation procedures will be discussed. Overall, this information is believed to enhance the understanding and develop better rehabilitative strategies to exploit training-induced cortical neuroplasticity in individuals affected by impaired oral motor coordination and function. Training or relearning of oral motor tasks could be important to optimise masticatory performance in dental prosthesis users and may represent a much-needed paradigm shift in the approach to oral rehabilitation procedures.

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Section: Need For Functional Oral Rehabilitationmentioning

confidence: 99%

Section: Need For Functional Oral Rehabilitationmentioning

confidence: 99%

See 1 more Smart Citation

Bite or brain: Implication of sensorimotor regulation and neuroplasticity in oral rehabilitation procedures

Kumar

Kothari

Grigoriadis

et al. 2018

J of Oral Rehabilitation

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show abstract

“…The participants were seated in an office chair, in an upright position without any head support, and their jaw movements recorded while performing the behavioral task as described in detail previously12141718. In brief, the movement of the lower jaw in relationship to the upper was assessed in three-dimensions employing a small gold-plated magnet (10 × 5 × 10 mm; Neodymium Iron Boron, N42) attached to the labial surface of the lower central incisors with dental composite.…”

Section: Methodsmentioning

confidence: 99%

“…The afferent sensory information from the PMRs is projected to the primary somatosensory cortex (SI), where it is integrated and interpreted and then further coordinated in the primary motor cortex (MI) to generate an efferent motor command to different jaw muscles410. It seems likely that the reduction in the sensory information provided from these mechanoreceptors may perturb oral motor control and thus impair mastication1112.…”

mentioning

confidence: 99%

Perturbed oral motor control due to anesthesia during intraoral manipulation of food

Grigoriadis

Kumar

Svensson

et al. 2017

Sci Rep

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Sensory information from periodontal mechanoreceptors (PMRs) surrounding the roots of natural teeth is important for optimizing the positioning of food and adjustment of force vectors during precision biting. The present experiment was designed to test the hypothesis; that reduction of afferent inputs from the PMRs, by anesthesia, perturbs the oral fine motor control and related jaw movements during intraoral manipulation of morsels of food. Thirty healthy volunteers with a natural dentition were equally divided into experimental and control groups. The participants in both groups were asked to manipulate and split a spherical candy into two equal halves with the front teeth. An intervention was made by anesthetizing the upper and lower incisors of the experimental group while the control group performed the task without intervention. Performance of the split was evaluated and the jaw movement recorded. The experimental group demonstrated a significant decrease in measures of performance following local anesthesia. However, there was no significant changes in the duration or position of the jaw during movements in the experimental and control group. In conclusion, transient deprivation of sensory information from PMRs perturbs oral fine motor control during intraoral manipulation of food, however, no significant alterations in duration or positions of the jaw during movements can be observed.

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Effect of food hardness on chewing behavior in children

2020

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Objective To investigate the effects of food hardness on chewing behavior in children compared with adults. Materials and methods Healthy children (3-17 years) were equally divided into five groups based on their dental eruption stages. Each participant ate soft and hard viscoelastic test food models (3 each), while the three-dimensional jaw movements and electromyographic (EMG) activity of the bilateral masseter muscles were recorded. The data from the children were compared with a control group of healthy adults (18-35 years). The data were analyzed with nonparametric tests. Results There was no significant difference in the number of chewing cycles and the duration of the chewing sequence between children groups and adults. Children with primary dentition (3-5 years) showed shorter lateral jaw movement and higher muscle activity at the end of the chewing sequence, compared with adults. Further, children's age-groups (3-14 years) failed to adapt their jaw muscle activity to food hardness. However, at the late-permanent dentition stage (15-17 years), children were capable of performing adult-like chewing behavior. Conclusions Overall, it seems that children as young as 3-year-old are quite competent in performing basic chewing function similar to adults. Yet, there are differences in the anticipation or adaption of jaw muscle activity and jaw kinematics to food hardness. Clinical relevance The study may have clinical implication in the diagnosis and management of children with chewing impairment associated with dental malocclusions and other orofacial dysfunctions.

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Motor behavior during the first chewing cycle in subjects with fixed tooth‐ or implant‐supported prostheses

Cited by 16 publications

References 50 publications

Bite or brain: Implication of sensorimotor regulation and neuroplasticity in oral rehabilitation procedures

Bite or brain: Implication of sensorimotor regulation and neuroplasticity in oral rehabilitation procedures

Perturbed oral motor control due to anesthesia during intraoral manipulation of food

Effect of food hardness on chewing behavior in children

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