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Guo Y, Zhao Q, Li T, Mao Q. Masticatory simulators based on oral physiology in food research: A systematic review. J Texture Stud 2024; 55:e12864. [PMID: 39233393 DOI: 10.1111/jtxs.12864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 07/14/2024] [Accepted: 07/27/2024] [Indexed: 09/06/2024]
Abstract
A masticatory simulator is a mechanical device that mimics the physiological structures of the human oral cavity, chewing movement system, and functions. The advantage of this device lies in real-time tracking and analysis of food boluses within a sealed oral space, offering a direct validation platform for food experiments without constraints related to time, space, and individual variations. The degree to which the masticatory simulator simulates physiological structures reflects its efficacy in replicating oral physiological processes. This review mainly discusses the physiological structures of the oral cavity, the simulation of biomimetic components, and the development, feasibility assessment, applications, and prospects of masticatory simulators in food. The highlight of this review is the analogy of biomimetic component designs in masticatory simulators over the past 15 years. It summarizes the limitations of masticatory simulators and their biomimetic components, proposing potential directions for future development. The purpose of this review is to assist readers in understanding the research progress and latest literature findings on masticatory simulators while also offering insights into the design and innovation of masticatory simulators.
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Affiliation(s)
- Yifei Guo
- Department of Food Science and Engineering, College of Light Industry, Liaoning University, Shenyang, China
- Hainan University-HSF/LWL Collaborative Innovation Laboratory, College of Food Sciences & Engineering, Hainan University, Haikou, China
| | - Qi Zhao
- Department of Information, College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, China
| | - Tiejing Li
- Department of Food Science and Engineering, College of Light Industry, Liaoning University, Shenyang, China
| | - Qian Mao
- Department of Food Science and Engineering, College of Light Industry, Liaoning University, Shenyang, China
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Kent RD. The Feel of Speech: Multisystem and Polymodal Somatosensation in Speech Production. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2024; 67:1424-1460. [PMID: 38593006 DOI: 10.1044/2024_jslhr-23-00575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
PURPOSE The oral structures such as the tongue and lips have remarkable somatosensory capacities, but understanding the roles of somatosensation in speech production requires a more comprehensive knowledge of somatosensation in the speech production system in its entirety, including the respiratory, laryngeal, and supralaryngeal subsystems. This review was conducted to summarize the system-wide somatosensory information available for speech production. METHOD The search was conducted with PubMed/Medline and Google Scholar for articles published until November 2023. Numerous search terms were used in conducting the review, which covered the topics of psychophysics, basic and clinical behavioral research, neuroanatomy, and neuroscience. RESULTS AND CONCLUSIONS The current understanding of speech somatosensation rests primarily on the two pillars of psychophysics and neuroscience. The confluence of polymodal afferent streams supports the development, maintenance, and refinement of speech production. Receptors are both canonical and noncanonical, with the latter occurring especially in the muscles innervated by the facial nerve. Somatosensory representation in the cortex is disproportionately large and provides for sensory interactions. Speech somatosensory function is robust over the lifespan, with possible declines in advanced aging. The understanding of somatosensation in speech disorders is largely disconnected from research and theory on speech production. A speech somatoscape is proposed as the generalized, system-wide sensation of speech production, with implications for speech development, speech motor control, and speech disorders.
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Romero-Reyes M, Arman S, Teruel A, Kumar S, Hawkins J, Akerman S. Pharmacological Management of Orofacial Pain. Drugs 2023; 83:1269-1292. [PMID: 37632671 DOI: 10.1007/s40265-023-01927-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2023] [Indexed: 08/28/2023]
Abstract
Orofacial pain is a category of complex disorders, including musculoskeletal, neuropathic and neurovascular disorders, that greatly affect the quality of life of the patient. These disorders are within the fields of dentistry and medicine and management can be challenging, requiring a referral to an orofacial pain specialist, essential for adequate evaluation, diagnosis, and care. Management is specific to the diagnosis and a treatment plan is developed with diverse pharmacological and non-pharmacological modalities. The pharmacological management of orofacial pain encompasses a vast array of medication classes and approaches. This includes anti-inflammatory drugs, muscle relaxants, anticonvulsants, antidepressants, and anesthetics. In addition, as adjunct therapy, different injections can be integrated into the management plan depending on the diagnosis and needs. These include trigger point injections, temporomandibular joint (TMJ) injections, and neurotoxin injections with botulinum toxin and nerve blocks. Multidisciplinary management is key for optimal care. New and safer therapeutic targets exclusively for the management of orofacial pain disorders are needed to offer better care for this patient population.
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Affiliation(s)
- Marcela Romero-Reyes
- Brotman Facial Pain Clinic, School of Dentistry, University of Maryland, 650 W. Baltimore St, 1st Floor, Baltimore, MD, 21201, USA.
- Department of Pain and Neural Sciences, School of Dentistry, University of Maryland, 650 W. Baltimore St, 8th Floor, Baltimore, MD, 21201, USA.
| | - Sherwin Arman
- Orofacial Pain Program, Section of Oral Medicine, Oral Pathology and Orofacial Pain, University of California, Los Angeles, School of Dentistry, Los Angeles, CA, USA
| | | | - Satish Kumar
- Department of Periodontics, Arizona School of Dentistry and Oral Health, A.T. Still University, Mesa, AZ, USA
| | - James Hawkins
- Naval Postgraduate Dental School, Naval Medical Leader and Professional Development Command, Uniformed Services University of the Health Sciences Postgraduate Dental College, Baltimore, MD, USA
| | - Simon Akerman
- Department of Pain and Neural Sciences, School of Dentistry, University of Maryland, 650 W. Baltimore St, 8th Floor, Baltimore, MD, 21201, USA
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McDonagh HDL, Broderick P, Monaghan K. Eye movement as a simple, cost-effective tool for people who stutter: A case study. SOUTH AFRICAN JOURNAL OF COMMUNICATION DISORDERS 2023; 70:e1-e13. [PMID: 37782243 PMCID: PMC10476227 DOI: 10.4102/sajcd.v70i1.968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 10/03/2023] Open
Abstract
BACKGROUND Access to services remains the biggest barrier to helping the most vulnerable in the South African Stuttering Community. This novel stuttering therapy, harnessing an unconscious link between eye and tongue movement, may provide a new therapeutic approach, easily communicated and deliverable online. OBJECTIVES This study provides both objective and subjective assessments of the feasibility of this intervention. Assessment tools holistically address all components of stuttering in line with comprehensive treatment approaches: core behaviours, secondary behaviours, anticipation and reactions. METHOD On receipt of ethical approval, this single-subject case design recruited one adult (21-year-old) male with a developmental stutter (DS). The participant gave informed consent and completed four scheduled assessments: baseline, after 5-week training, 3 months post-intervention and 24 months post-completion. The study used objective assessment tools: Stuttering Severity Instrument-4 (SSI-4); Subjective-assessment tools: SSI-4 clinical use self-report tool (CUSR); Overall Assessment of Speaker's Experience of Stuttering (OASES-A); Premonitory Awareness in Stuttering (PAiS) and Self-Report Stuttering Severity* (SRSS) (*final assessment). RESULTS The participant's scores improved across all assessment measures, which may reflect a holistic improvement. The participant reported that the tool was very useful. There were no negative consequences. CONCLUSION This case report indicates that this innovative treatment may be feasible. No adverse effects were experienced, and the treatment only benefited the participant. The results justify the design of a pilot randomised feasibility clinical trial.Contribution: The results indicate that this is a needed breakthrough in stuttering therapy as the instructions can be easily translated into any language. It can also be delivered remotely reducing accessibility barriers.
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Affiliation(s)
- Hilary D-L McDonagh
- Department of Health and Nutritional Science, Faculty of Science, Atlantic Technological University, Sligo.
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Duffin PS, Smith A, Hawkins JM. Nonodontogenic Odontalgia Referred from the Temporal Tendon: A Case Report. J Endod 2020; 46:1530-1534. [DOI: 10.1016/j.joen.2020.06.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/08/2020] [Indexed: 12/22/2022]
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Garner DP, Lamira J. Respiratory outcomes with the use of a lower custom fit genioglossal-effecting oral appliance. Clin Exp Dent Res 2020; 6:100-106. [PMID: 32067401 PMCID: PMC7025983 DOI: 10.1002/cre2.254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 09/05/2019] [Accepted: 09/10/2019] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE Sleep apnea research cites that an oral appliance, which places the mandible in a more forward position and the genioglossus (tongue muscle) on the floor of the mouth, improves aspects of the pharyngeal opening. Exercise science research has cited improvements in airway dynamics and physiological variables with oral appliance use during exercise. Thus, the purpose of this study was to design an oral appliance that would act on the genioglossus and determine if there were effects on respiratory parameters while exercising. MATERIALS AND METHODS Seventeen healthy subjects ages 18-43 participated in this study. Prior to the exercise protocol, the order of the oral applicance (OA) or no oral appliance (no OA) condition was randomly assigned to subjects, with subjects completing both conditions. Respiratory parameters (respiratory rate, ventilation, oxygen, and carbon dioxide) were measured between conditions while subjects ran for 10 min at steady state. RESULTS The results demonstrated that both respiratory rate (25.97 BPM, OA and 28.35 BPM, no OA) and ventilation (47.66 l/min, OA and 50.34 l/min, No OA) were significantly lowered (p < .01) in the OA condition. There were no differences in carbon dioxide (1.89 l/min, no OA and 1.88 l/min, OA) or oxygen outcomes (2.17 l/min, no OA and 2.17 l/min OA). DISCUSSION The outcomes from this study suggest that the design of the oral appliance elicits an effect on the genioglossus, thereby resulting in lowered respiratory rate and ventilation with no negative effects on oxygen uptake during exercise.
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Affiliation(s)
- Dena P. Garner
- Department of Health and Human Performance, the CitadelThe CitadelCharlestonSouth Carolina
| | - Jensine Lamira
- Department of Health and Human Performance, the CitadelThe CitadelCharlestonSouth Carolina
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Bordoni B, Morabito B, Mitrano R, Simonelli M, Toccafondi A. The Anatomical Relationships of the Tongue with the Body System. Cureus 2018; 10:e3695. [PMID: 30838167 PMCID: PMC6390887 DOI: 10.7759/cureus.3695] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The tongue plays a fundamental role in several body functions such as swallowing, breathing, speaking, and chewing. Its action is not confined to the oral cavity, but it affects lower limb muscle strength and posture. The tongue is an organ that has an autocrine/paracrine mechanism of action to synthesize different substances to interact with the whole body; according to a line of thought, it is also an extension of the enteric system. The aim of this study was to review the functions of the tongue and its anatomical association with the body system. According to the authors' knowledge, this is the first scientific article focusing on the tongue in a systemic context. In a clinical evaluation, connections with the tongue should be considered to optimize the clinical examination of the tongue and therefore enhance rehabilitation programs and therapeutic results.
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Affiliation(s)
- Bruno Bordoni
- Cardiology, Foundation Don Carlo Gnocchi / Institute of Hospitalization and Care, Milan, ITA
| | - Bruno Morabito
- Osteopathy, School of Osteopathic Centre for Research and Studies, Milan, ITA
| | - Roberto Mitrano
- Cardiology, Foundation Don Carlo Gnocchi/institute of Hospitalization and Care, Milan, ITA
| | | | - Anastasia Toccafondi
- Cardiology, Foundation Don Carlo Gnocchi/institute of Hospitalization and Care, Milan, ITA
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Zampino C, Ficacci R, Checcacci M, Franciolini F, Catacuzzeno L. Pain Control by Proprioceptive and Exteroceptive Stimulation at the Trigeminal Level. Front Physiol 2018; 9:1037. [PMID: 30131708 PMCID: PMC6090166 DOI: 10.3389/fphys.2018.01037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 07/12/2018] [Indexed: 11/25/2022] Open
Abstract
The Gate Control Theory of pain, published more than half a century ago to explain nociceptive modulation of peripheral sensory input, assumes inhibition of incoming nociceptive (pain) information produced by mechanical stimulation. To verify the presence of such a gate control mechanism at the level of the human trigeminal system, we evaluated the effects on pain sensation of a proprioceptive trigeminal stimulation induced by mandibular extension. We found that such a stimulation, applied for 7 min, was effective in increasing both the threshold and tolerance of tooth pain induced by electrical activation of dental nociceptors. Moreover the antinociceptive effect lasted for several minutes after the proprioceptive stimulus had ceased. We also tested whether an exteroceptive palatal stimulation superimposed on the proprioceptive stimulation would increase the effects on tooth pain perception of human volunteers. We observed that the exteroceptive stimulation significantly increased the antinociceptive effect induced by the sole proprioceptive stimulation. The physiological mechanisms and the possible implications of these observations are discussed.
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Affiliation(s)
- Claudio Zampino
- Department of Chemistry, Biology and Biotechnology, The University of Perugia, Perugia, Italy
| | - Roberta Ficacci
- Department of Chemistry, Biology and Biotechnology, The University of Perugia, Perugia, Italy
| | | | - Fabio Franciolini
- Department of Chemistry, Biology and Biotechnology, The University of Perugia, Perugia, Italy
| | - Luigi Catacuzzeno
- Department of Chemistry, Biology and Biotechnology, The University of Perugia, Perugia, Italy
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Grondin F, Hall T, von Piekartz H. Does altered mandibular position and dental occlusion influence upper cervical movement: A cross-sectional study in asymptomatic people. Musculoskelet Sci Pract 2017; 27:85-90. [PMID: 27847242 DOI: 10.1016/j.math.2016.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Revised: 05/25/2016] [Accepted: 06/07/2016] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Gross mandibular position and masticatory muscle activity have been shown to influence cervical muscles electromyographic activity. The purpose of this study was to investigate the influence of three different mandible positions including conscious occlusion, tongue tip against the anterior hard palate (Palate tongue position) and natural resting position (Rest), on sagittal plane cervical spine range of motion (ROM) as well as the flexion-rotation test (FRT) in asymptomatic subjects. MATERIALS AND METHODS An experienced single blinded examiner evaluated ROM using an Iphone in 22 subjects (7 females; mean age of 29.91years, SD 5.44). RESULTS Intra-rater reliability for range recorded was good for the FRT with ICC (intraclass correlation) 0.95 (95% CI: 0.88-0.98) and good for sagittal plane cervical ROM with ICC 0.90 (95% CI: 0.77-0.96). A repeated measures ANOVA determined that mean ROM recorded during the FRT differed significantly between assessment points (F(1.99, 41.83) = 19.88, P < 0.001). Bonferroni Post hoc tests revealed that both conscious Occlusion and Palate tongue position elicited a significant large reduction in ROM recorded during the FRT from baseline (p < 0.01). Despite this, one activation strategy did not influence ROM more than the other. An additional repeated measures ANOVA determined that mean sagittal cervical ROM did not significantly vary between assessment points (F(2, 42) = 8.18, P = 0.08). CONCLUSION This current study provided further evidence for the influence of the temporomandibular region on upper cervical ROM. Results suggest that clinicians should focus on the natural mandible rest position when evaluating upper cervical mobility.
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Affiliation(s)
- Francis Grondin
- Laboratory of Anatomy, Bordeaux University Hospital, Hôpital Pellegrin, Place Amélie-Raba-Léon, 33076, Bordeaux, France.
| | - Toby Hall
- School of Physiotherapy and Exercise Science, Curtin University, P.O. Box U1987, Perth, WA, 6845, Australia.
| | - Harry von Piekartz
- University of Applied Science, Department of Rehabilitation, Osnabrück, Germany.
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Valdés C, Astaburuaga F, Falace D, Ramirez V, Manns A. Effect of tongue position on masseter and temporalis electromyographic activity during swallowing and maximal voluntary clenching: a cross-sectional study. J Oral Rehabil 2014; 41:881-9. [DOI: 10.1111/joor.12210] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2014] [Indexed: 11/27/2022]
Affiliation(s)
- C. Valdés
- Restorative Dentistry and Oral Function; College of Dentistry/Universidad de los Andes; Las Condes Chile
| | - F. Astaburuaga
- Restorative Dentistry and Oral Function; College of Dentistry/Universidad de los Andes; Las Condes Chile
| | - D. Falace
- Oral Diagnosis and Oral Medicine; College of Dentistry/University of Kentucky; Lexington KY USA
| | - V. Ramirez
- Public Health and Epidemiology; College of Dentistry/Universidad de los Andes; Las Condes Chile
| | - A. Manns
- Restorative Dentistry and Oral Function; College of Dentistry/Universidad de los Andes; Las Condes Chile
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Valdés C, Gutiérrez M, Falace D, Astaburuaga F, Manns A. The effect of tongue position and resulting vertical dimension on masticatory muscle activity. A cross-sectional study. J Oral Rehabil 2013; 40:650-6. [DOI: 10.1111/joor.12080] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2013] [Indexed: 11/28/2022]
Affiliation(s)
- C. Valdés
- Restorative Dentistry and Oral Function; College of Dentistry/Facultad de Odontología Universidad de los Andes; Santiago Chile
| | - M. Gutiérrez
- Restorative Dentistry and Oral Function; College of Dentistry/Facultad de Odontología Universidad de los Andes; Santiago Chile
| | - D. Falace
- Oral Diagnosis and Oral Medicine; College of Dentistry/University of Kentucky; Lexington Kentucky USA
| | - F. Astaburuaga
- Restorative Dentistry and Oral Function; College of Dentistry/Facultad de Odontología Universidad de los Andes; Santiago Chile
| | - A. Manns
- Restorative Dentistry and Oral Function; College of Dentistry/Facultad de Odontología Universidad de los Andes; Santiago Chile
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