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Sakaguchi K, Mehta NR, Maruyama T, Correa LP, Yokoyama A. Effect of masticatory movements on head and trunk sways, and sitting and foot pressure distributions during sitting position. J Oral Rehabil 2023; 50:1253-1260. [PMID: 37418585 DOI: 10.1111/joor.13556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/04/2023] [Accepted: 06/27/2023] [Indexed: 07/09/2023]
Abstract
BACKGROUND The head plays an important role in the postural control. Chewing co-activates jaw and neck muscles leading to coordinated jaw and head-neck movements. Therefore, to examine effect of masticatory movements on head and trunk sways, and sitting and foot pressure distributions during mastication is helpful in the attempt to understand the interrelationship between stomatognathic function and posture control system in the sitting position. OBJECTIVES The purpose of this study was to test the hypothesis in healthy subjects that masticatory movements affect head and trunk sways and sitting and foot pressure distributions during sitting position. METHODS A total of 30 healthy male subjects with an average age of 25.3 years (range, 22-32 years) were evaluated. The CONFORMat™ and MatScan™ system were used to analyse changes in sitting pressure distribution center of sitting pressure (COSP) and changes in foot pressure distribution center of foot pressure (COFP), respectively, and the three-dimensional motion analysis system was used to analyse changes in head and trunk postures while subjects remained sitting position with rest position, centric occlusion and chewing. The total trajectory length of COSP/COFP, COSP/COFP area, and head and trunk sway values were compared between the three conditions to evaluate whether masticatory movement affected the stability of head and trunk sways and sitting and foot pressure distributions. RESULTS Total trajectory length of COSP and COSP area during chewing were significantly shorter and smaller respectively than it was in rest position and centric occlusion (p ⟨ .016). Head sway value during chewing was significantly larger than it was in rest position and centric occlusion (p ⟨ .016). CONCLUSION Masticatory movements affect sitting pressure distribution and head movements during sitting position.
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Affiliation(s)
- Kiwamu Sakaguchi
- Department of Oral Functional Prosthodontics, Division of Oral Functional Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Noshir R Mehta
- Department of Diagnostic Sciences, Craniofacial Pain Center, Tufts University School of Dental Medicine, Boston, Massachusetts, USA
| | - Tomoaki Maruyama
- Department of Industrial Engineering, Computer Science Course, National Institute of Technology (KOSEN), Ibaraki College, Ibaraki, Japan
| | - Leopoldo P Correa
- Department of Diagnostic Sciences, Craniofacial Pain Center, Tufts University School of Dental Medicine, Boston, Massachusetts, USA
| | - Atsuro Yokoyama
- Department of Oral Functional Prosthodontics, Division of Oral Functional Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
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Sakaguchi K, Mehta NR, Maruyama T, Correa LP, Yokoyama A. Effect of sitting posture with and without sole-ground contact on chewing stability and masticatory performance. J Oral Sci 2023; 65:251-256. [PMID: 37599080 DOI: 10.2334/josnusd.23-0172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
PURPOSE To verify the effect of sitting posture with and without sole-ground contact on chewing stability and masticatory performance. METHODS Thirty healthy subjects were evaluated. The Conformat was used to analyze the center of sitting pressure (COSP), and the three-dimensional motion analysis system was used to analyze changes in head and trunk postures while subjects remained in a sitting position with and without sole-ground contact. The parameters of masticatory performance and movement were calculated as follows. For evaluating masticatory performance, the amount of glucose extraction (AGE) during chewing of a gummy jelly was measured. For evaluating masticatory movements, the movement of the mandibular incisal point was recorded using the Motion Visi-Trainer V1, and parameters of the stabilities of movement path and rhythm were calculated. RESULTS Head and trunk sway values and the displacement of COSP were significantly smaller with sole-ground contact than those without sole-ground contact. The masticatory movement path with sole-ground contact showed less variation in the opening distance and more stable movement path compared to those without sole-ground contact. The AGE was significantly greater with sole-ground contact than that without sole-ground contact. CONCLUSION Sitting posture with and without sole-ground contact affects chewing stability and masticatory performance.
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Affiliation(s)
- Kiwamu Sakaguchi
- Department of Oral Functional Prosthodontics, Division of Oral Functional Science, Graduate School of Dental Medicine, Hokkaido University
| | - Noshir R Mehta
- Craniofacial Pain Center, Department of Diagnostic Sciences, Tufts University School of Dental Medicine
| | - Tomoaki Maruyama
- Computer Science Course, Department of Industrial Engineering, National Institute of Technology, Ibaraki College
| | - Leopoldo P Correa
- Craniofacial Pain Center, Department of Diagnostic Sciences, Tufts University School of Dental Medicine
| | - Atsuro Yokoyama
- Department of Oral Functional Prosthodontics, Division of Oral Functional Science, Graduate School of Dental Medicine, Hokkaido University
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Piancino MG, Tortarolo A, Macdonald F, Garagiola U, Nucci L, Brayda-Bruno M. Spinal disorders and mastication: the potential relationship between adolescent idiopathic scoliosis and alterations of the chewing patterns. Orthod Craniofac Res 2022; 26:178-184. [PMID: 35841372 DOI: 10.1111/ocr.12598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/08/2022] [Accepted: 07/12/2022] [Indexed: 11/25/2022]
Abstract
OBJECTIVE to evaluate mastication in a group of patients with Adolescent Idiopathic Scoliosis (AIS) with a control group, by means of the prevalence of reverse chewing cycles (RCC). MATERIAL AND METHODS this study included a group of patients (N=32; F=24; M=8; mean age ± SD = 14±3 years) with a confirmed diagnosis of Adolescent Idiopathic Scoliosis and a group of control subjects (N=32; F=24; M=8; mean age ± SD = 13±6 years) without spinal disorders. Mastication was recorded with both a hard and a soft bolus, following a standardized protocol, and the prevalence of reverse chewing cycles was compared between the groups. RESULTS The prevalence of reverse chewing cycles was significantly higher in the Adolescent Idiopathic Scoliosis group, with both a soft and a hard bolus, compared to the control group (p<0,001). CONCLUSION the results of this study indicate that the presence of Adolescent Idiopathic Scoliosis influences mastication, i.e. one of the main functions of the stomatognathic system. A multidisciplinary approach to these patients may be relevant in providing the best possible treatment outcomes.
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Affiliation(s)
- Maria Grazia Piancino
- Department of Surgical Sciences, Dental School C.I.R., Division of Orthodontics, University of Turin, Turin, Italy
| | - Alessandro Tortarolo
- Department of Surgical Sciences, Dental School C.I.R., Division of Orthodontics, University of Turin, Turin, Italy
| | | | - Umberto Garagiola
- Department of Biomedical Sciences, University of Milan, Milan, Italy
| | - Ludovica Nucci
- Department of Surgical Sciences and Dental Specialties, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Marco Brayda-Bruno
- Spine surgery III Scoliosis Department, IRCCS Orthopedic Institute Galeazzi, Milan, Italy
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LÍBERA JD, NAKANO BMB, GUIOTTI AM, RODRIGUES JVS, BRANDINI DA, DEVIDES EGDF, VOLCE AHDS, TURCIO KHL. Dores musculares cervicais em pacientes com DTM e suas correlações. REVISTA DE ODONTOLOGIA DA UNESP 2022. [DOI: 10.1590/1807-2577.04822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Resumo Introdução As disfunções temporomandibulares apresentam uma variedade de sinais e sintomas que afetam a articulação temporomandibular, músculos da mastigação e estruturas relacionadas e muitos pacientes apresentam queixas cervicais. Objetivo Verificar a correlação de dor à palpação dos músculos da mastigação (masseter, temporal anterior, pterigoideos lateral e medial) e digástrico, com a queixa de dor no pescoço; verificar a correlação de dor à palpação nos músculos da mastigação e digástrico, com dor à palpação no esternocleidomastoideo e trapézio, e se a força de correlação é diferente entre eles. Material e método Foram avaliados 232 prontuários da clínica odontológica das Disfunções Temporomandibulares da Faculdade de Odontologia de Araçatuba, do período de 2011 a 2013. Os dados coletados foram submetidos à análise estatística, com alfa (α) = 0.01 para todos os casos, exceto digástrico quando associado ao trapézio (α) = 0.05. Resultado A maioria dos pacientes era do sexo feminino. Houve correlação positiva entre dor à palpação nos músculos temporal, masseter, pterigoideo lateral, esternocleidomastoideo e trapézio, e queixa de dor no pescoço. Também houve correlação positiva entre a dor em todos os músculos da mastigação (masseter, temporal, pterigoideo lateral e medial) e digástrico e a dor no esternocleidomastoideo. Bem como a correlação de presença de dor nos músculos masseter, temporal, pterigoideo lateral e digástrico com dor no trapézio. A correlação de dor foi mais forte para o músculo esternocleidomastoideo, exceto para o pterigoideo lateral. Conclusão Existe correlação positiva entre a queixa de dor à palpação nos músculos da mastigação, exceto pterigiodeo medial, e os músculos cervicais (esternocleidomastoideo e trapézio). A força de correlação entre a dor do masseter e temporal anterior com o esternocleidomastoideo é mais forte do que com o trapézio.
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Böthun A, Häggman-Henrikson B, Wiesinger B, Wänman A, Hellström F, Österlund C. Jaw-neck motor strategy during jaw-opening with resistance load. J Oral Rehabil 2021; 49:514-521. [PMID: 34878690 DOI: 10.1111/joor.13291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/23/2021] [Accepted: 12/03/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND The jaw and neck motor systems have a close functional integration but the effect of resistance load to the mandible during jaw opening on the jaw-neck integration is not known. OBJECTIVES To evaluate the effect of resistance load compared to no load on integrated jaw and neck motor function in individuals free from pain and dysfunction in the jaw and neck regions. METHODS Jaw and head movements during continuous jaw opening were recorded with an optoelectronic system (MacReflex® ) in 26 pain-free individuals (14 women, 12 men, mean age 22 years). Jaw opening was performed with and without resistance load (1600 g) to the mandible. The relationship between jaw movement amplitude, head movement amplitude, head/jaw ratio (quotient of head and jaw movement amplitude) and resistance load were modelled using linear mixed-model analysis. A p-value <.05 was considered statistically significant. RESULTS The expected head/jaw ratio mean was increased by 0.05 (95% CI: 0.03, 0.08, p < .001) with resistance load as compared to no load. This corresponds to an increase in expected mean by 55.6%. With resistance load, expected mean head movement amplitude increased by 1.4 mm (95% CI: 0.2, 2.5, p = .018), and expected mean jaw movement amplitude decreased by 3.7 mm (95% CI: -7.0, -0.5, p = .025). CONCLUSION There is a compensation and adaptation of integrated jaw-neck motor function with an altered jaw-neck motor strategy during jaw opening with resistance load compared to no load. The head/jaw ratio demonstrates increased proportional involvement of the neck during increased load on the jaw system.
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Affiliation(s)
- Alicia Böthun
- Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umeå University, Umeå, Sweden
| | - Birgitta Häggman-Henrikson
- Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umeå University, Umeå, Sweden.,Department of Orofacial Pain and Jaw Function, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Birgitta Wiesinger
- Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umeå University, Umeå, Sweden.,Department of Research and Development, Umeå University, Sundsvall, Sweden
| | - Anders Wänman
- Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umeå University, Umeå, Sweden
| | - Fredrik Hellström
- Department of Occupational Health Science and Psychology, Faculty of Health and Occupational Studies, University of Gävle, Gävle, Sweden
| | - Catharina Österlund
- Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umeå University, Umeå, Sweden
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Juvenile/Adolescent Idiopatic Scoliosis and Rapid Palatal Expansion. A Pilot Study. CHILDREN-BASEL 2021; 8:children8050362. [PMID: 33946317 PMCID: PMC8146753 DOI: 10.3390/children8050362] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/21/2021] [Accepted: 04/27/2021] [Indexed: 12/28/2022]
Abstract
The question of whether orthodontic therapy by means of rapid palatal expansion (RPE) affects the spine during development is important in clinical practice. RPE is an expansive, fixed therapy conducted with heavy forces to separate the midpalatal suture at a rate of 0.2–0.5 mm/day. The aim of the study was to evaluate the influence of RPE on the curves of the spine of juvenile/adolescent idiopathic scoliosis patients. Eighteen patients under orthopedic supervision for juvenile/adolescent idiopathic scoliosis and independently treated with RPE for orthodontic reasons were included in the study: Group A, 10 subjects (10.4 ± 1.3 years), first spinal radiograph before the application of the RPE, second one during the orthodontic therapy with RPE; Group B, 8 patients (11.3 ± 1.6 years), first radiograph during the use of RPE second one after the removal. Group A showed a significant worsening of the Cobb angle (p ≤ 0.005) at the second radiograph after RPE. Group B showed a significant improvement of the Cobb angle (p = 0.01) at the second radiograph after removal of RPE. Based on the results, the use of RPE during adolescence might influence the spinal curves of patients with idiopathic scoliosis.
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Ishii T, Narita N, Endo H, Wakami M, Okubo M, Uchida T, Kantake I, Shibutani K. Coordinated features in jaw and neck muscle activities induced by chewing of soft and hard gum in healthy subjects. Clin Exp Dent Res 2021; 7:868-876. [PMID: 33687150 PMCID: PMC8543462 DOI: 10.1002/cre2.413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 12/14/2020] [Accepted: 02/21/2021] [Indexed: 11/25/2022] Open
Abstract
Backgrounds Jaw and neck muscles may be activated by chewing load using a hard food. However, it remains unclear how effects the gum hardness to the coordinated features in jaw and neck muscle activities during chewing performance. Objectives This study was conducted to quantitatively elucidate the effects of the hardness of the gum on coordinated features in jaw and neck muscle activities using intermuscular EMG–EMG transfer function and EMG–EMG coherence function analyses in 18 healthy subjects. Methods Jaw and neck muscle activities were aggregated into the first peak frequency of the power spectrum, and power, gain, phase, and coherence parameters between jaw and neck muscle activities were examined in the first peak frequencies during soft and hard gum chewing. Results The first peak frequency was not significantly different between soft and hard gum chewing. In contrast, power values of the jaw and neck muscles were significantly increased by chewing of hard gum as compared with soft gum, whereas gain, phase, and coherence were not significantly changed by gum hardness. Conclusions The chewing rhythm, the quantitative and temporal coordination, and the functional coordination in jaw and neck muscle activities were not changed during soft and hard gum chewing, as well as increased jaw and neck muscles activities. It is therefore concluded that the chewing rhythmicity and jaw and neck muscles coordination accompanied with the increased jaw and neck muscle activities are maintained under the condition of the chewing load using gum hardness in the healthy individuals.
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Affiliation(s)
- Tomohiro Ishii
- Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Noriyuki Narita
- Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Hiroshi Endo
- Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Japan
| | - Masanobu Wakami
- Department of Oral Health Science Division of Oral Function and Rehabilitation, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Masakazu Okubo
- Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | | | - Ikuo Kantake
- Dental Support Co. Ltd., Chiba, Japan.,Department of Anesthesiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Koh Shibutani
- Department of Anesthesiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
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Effects of rehabilitation with complete dentures on bite force and electromyography of jaw and neck muscles and the correlation with occlusal vertical dimension. Clin Oral Investig 2021; 25:4691-4698. [PMID: 33442778 DOI: 10.1007/s00784-021-03783-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 01/06/2021] [Indexed: 10/22/2022]
Abstract
OBJECTIVES The purpose of this study was to assess the effects of oral rehabilitation with complete dentures on bite force and electromyography of the suprahyoid and sternocleidomastoid muscles, and their correlation with occlusal vertical dimension (OVD). The research questions were "What are the effects of rehabilitation with complete dentures on bite force and electromyography of suprahyoid and sternocleidomastoid muscles, and how are they correlated with OVD?" MATERIALS AND METHODS Patients who are wearers of unsatisfactory removable complete dentures were attended in three sessions (T0, T1, and T2). At T0, while the patients still wore the old dentures, they were submitted to bite force and surface electromyographic exams of the suprahyoid and sternocleidomastoid muscles. These exams were repeated, and the OVD was measured while the patients wore their old and new prostheses, 30 days after insertion of the new prosthesis (T1). The exams were repeated 100 days after the insertion of the new prosthesis (T2). The data were submitted to the Shapiro-Wilk normality test, analysis of variance (ANOVA), and Pearson correlation and linear regression, all with 5% significance. RESULTS Fifteen patients participated in the study. No statistically significant difference was observed for bite force or electromyography in T0, T1, or T2. However, the correlation and regression tests showed important interactions between the OVD and maximum voluntary occlusal bite force, as well as the OVD and electromyography during deglutition for the suprahyoid muscles. CONCLUSION Rehabilitation did not impact bite force nor the activity of the assessed muscles (electromyography). On the other hand, OVD was shown to be an important factor for bite force, and deglutition of water after rehabilitation. CLINICAL RELEVANCE This study shows what are the influences of rehabilitation on oral functions and reinforces the importance of corrected reestablishment of OVD because it has been found to be an important factor for bite force and electromyography during deglutition.
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Fassicollo CE, Garcia DM, Machado BCZ, de Felício CM. Changes in jaw and neck muscle coactivation and coordination in patients with chronic painful TMD disk displacement with reduction during chewing. Physiol Behav 2020; 230:113267. [PMID: 33246001 DOI: 10.1016/j.physbeh.2020.113267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/20/2020] [Accepted: 11/21/2020] [Indexed: 01/15/2023]
Abstract
The treatment of a complex temporomandibular disorder (TMD), such as disk displacement with reduction (DDR) associated with arthralgia and myalgia, may depends on understanding the impairments in muscle function. The aim of this study was to investigate the behavior of the anterior temporalis, masseter and sternocleidomastoid muscles in the time and frequency domains during chewing in patients with chronic painful TMD-DDR using electromyographic (EMG) analysis. Thirty-three patients who met the diagnostic criteria for TMD and 32 volunteers without TMD (control group) underwent clinical examination, chewing pattern classification and EMG analysis. For the EMG analyses, the side of habitual unilateral chewing, as determined by the chewing pattern classification, was selected for recording; in cases of bilateral chewing, the recording side was randomly selected. The EMG-EMG coherence function and EMG-EMG transfer function (gain and phase) values were obtained at the first chewing frequency peak, and the working-side masseter signal was used as a reference in the analyses of the other muscles. Compared to the control group, the TMD group showed a longer chewing stroke duration (P = 0.01) as well as changes in the coactivation and coordination strategies of the jaw muscles, evidenced by greater relative energy expenditure (P< 0.01) and impaired differential recruitment (P< 0.05) and coherence (P< 0.01). Delays in peak and temporal asynchrony occurred in the jaw and neck muscles (P< 0.05). Patients with chronic painful TMD-DDR during chewing presented changes in the jaw and neck muscles, with more compromised function of the former, which are specific to chewing.
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Affiliation(s)
- Carlos Eduardo Fassicollo
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery School of Medicine of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto (SP), 14049-900, Brazil
| | - Denny Marcos Garcia
- Craniofacial Research Support Center, University of São Paulo - USP, Ribeirão Preto (SP), Brazil
| | | | - Cláudia Maria de Felício
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery School of Medicine of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto (SP), 14049-900, Brazil; Craniofacial Research Support Center, University of São Paulo - USP, Ribeirão Preto (SP), Brazil.
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Narita N, Endo H, Ishii T, Kobayashi T, Uchida T, Kantake I, Shibutani K. Effects of denture wearing on coordinated features of jaw and neck muscle activities during chewing in partially edentulous elderly patients. J Prosthodont Res 2020; 65:235-242. [PMID: 33041278 DOI: 10.2186/jpr.jpr_d_20_00004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE This study was performed to examine how denture wearing improves jaw and neck muscle coordination during chewing in partially edentulous elderly patients. METHODS Sixteen patients classified as Eichner's index B2 or B3 and 16 young dentate subjects were enrolled. Jaw and neck muscle activities during chewing were recorded using electromyography with and without denture wearing, then analyzed using intermuscular Electromyography (EMG)-EMG transfer and EMG-EMG coherence function analyses to clarify quantitative, temporal, and functional coordination of jaw and neck muscle activities while chewing. Occlusal force and masticatory scores were also determined. RESULTS Denture wearing increased the power values for jaw closing muscle activities, and improved occlusal area and force, and masticatory score. Gain values for jaw closing and opening muscle activities were decreased in those wearing dentures compared to those not wearing dentures. Denture wearing resulted in equivalent gain values for jaw closing and opening muscle activities as compared to the young subjects. Coherence values for chewing and non-chewing side neck muscle activities were increased as compared to not denture wearing. CONCLUSIONS The suitability of denture wearing can be evaluated from the viewpoint of gain as a quantitative parameter showing coordination between jaw closing and opening muscle activities. Such evaluation can be performed from the viewpoint of coherence as a parameter of functional coordination between jaw and neck muscle activities during chewing in partially edentulous elderly patients. The gain parameter in regard to jaw muscle activities may be compensated to a state equivalent to that seen in young subjects by wearing an appropriate denture.
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Affiliation(s)
- Noriyuki Narita
- Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Chiba
| | - Hiroshi Endo
- Physical Fitness Technology Research Group, Human Informatics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST),Ibaraki
| | - Tomohiro Ishii
- Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo, Chiba
| | - Taira Kobayashi
- Department of Fixed Prosthodontics and Oral Implantology, Nihon University School of Dentistry at Matsudo, Chiba
| | | | - Ikuo Kantake
- Dental Support Co. Ltd, Chiba.,Department of Anesthesiology, Nihon University School of Dentistry at Matsudo, Chiba
| | - Koh Shibutani
- Department of Anesthesiology, Nihon University School of Dentistry at Matsudo, Chiba
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Gouw S, Frowein A, Braem C, de Wijer A, Creugers NHJ, Pasman JW, Doorduin J, Kalaykova SI. Coherence of jaw and neck muscle activity during sleep bruxism. J Oral Rehabil 2020; 47:432-440. [PMID: 31926031 PMCID: PMC7079051 DOI: 10.1111/joor.12932] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 12/05/2019] [Accepted: 12/31/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND Studies have shown co-contraction of jaw and neck muscles in healthy subjects during (sub) maximum voluntary jaw clenching, indicating functional inter-relation between these muscles during awake bruxism. So far, coherence of jaw and neck muscles has not been evaluated during either awake or sleep bruxism. OBJECTIVE The objective of this study was to evaluate the coherence between jaw and neck muscle activity during sleep bruxism. METHODS In a cross-sectional observational design, the electromyographic activity of jaw (masseter, temporalis) and neck (sternocleidomastoid, trapezius) muscles in individuals with "definite" sleep bruxism was measured using ambulatory polysomnography (PSG). Coherence for masseter-temporalis, masseter-sternocleidomastoid and masseter-trapezius was measured during phasic and mixed rhythmic masticatory muscle activity episodes using coherence-analysing software. Outcome measures were as follows: presence or absence of significant coherence per episode (in percentages), frequency of peak coherence (FPC) per episode and sleep stage. RESULTS A total of 632 episodes within 16 PSGs of eight individuals were analysed. Significant coherence was found between the jaw and neck muscles in 84.9% of the episodes. FPCs of masseter-temporalis were significantly positively correlated with those of masseter-sternocleidomastoid or masseter-trapezius (P < .001). Sleep stages did not significantly influence coherence of these muscular couples. CONCLUSION During sleep bruxism, jaw and neck muscle activation is significantly coherent. Coherence occurs independently of sleep stage. These results support the hypothesis of bruxism being a centrally regulated phenomenon.
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Affiliation(s)
- Simone Gouw
- Department of Oral Function and Prosthetic DentistryCollege of Dental SciencesRadboud University Medical CenterNijmegenThe Netherlands
- Academic InstituteUtrechtThe Netherlands
| | - Angela Frowein
- Department of Oral Function and Prosthetic DentistryCollege of Dental SciencesRadboud University Medical CenterNijmegenThe Netherlands
| | - Carlijn Braem
- Department of NeurologyRadboud University Medical CenterNijmegenThe Netherlands
- Technical MedicineUniversity of TwenteEnschedeThe Netherlands
| | - Anton de Wijer
- Department of Oral Function and Prosthetic DentistryCollege of Dental SciencesRadboud University Medical CenterNijmegenThe Netherlands
- Academic InstituteUtrechtThe Netherlands
| | - Nico H. J. Creugers
- Department of Oral Function and Prosthetic DentistryCollege of Dental SciencesRadboud University Medical CenterNijmegenThe Netherlands
| | - Jaco W. Pasman
- Department of NeurologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Jonne Doorduin
- Department of NeurologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Stanimira I. Kalaykova
- Department of Oral Function and Prosthetic DentistryCollege of Dental SciencesRadboud University Medical CenterNijmegenThe Netherlands
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Piekartz HV, Rösner C, Batz A, Hall T, Ballenberger N. Bruxism, temporomandibular dysfunction and cervical impairments in females - Results from an observational study. Musculoskelet Sci Pract 2020; 45:102073. [PMID: 31678819 DOI: 10.1016/j.msksp.2019.102073] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 10/11/2019] [Indexed: 11/18/2022]
Abstract
PURPOSE Bruxism is highly prevalent and defined as abnormal habitual mouth activity including clenching of the teeth and increased jaw muscle activity. The association between bruxism and temporomandibular dysfunction (TMD) is debated, in particular the association between cervical spine impairments, bruxism, and TMD. Hence the purpose of this study was to identify the relationship between bruxism, TMD, and cervical spine impairments. METHODS This observational study categorized 55 female volunteers suitable for evaluation to a bruxism (n = 33) or non-bruxism group (n = 22) based on comprehensive screening using questionnaires and visual observation of the mouth by 2 independent dentists. Following this, both groups were evaluated for TMD, severity and location of head/neck pain, neck disability index (NDI), cervical spine impairments, and tissue mechanosensitivity. Regression analysis was used to evaluate the relationship between bruxism, TMD severity, and cervical impairments. RESULTS Coefficients of pain and bruxism were significantly associated with NDI scores (0.43, p < 0.001; 3.24, p = 0.01) with large and medium sized effects. As a consequence, both severity of TMD and bruxism status are independently associated with cervical impairments. Having TMD is an independent predictor for head/neck pain and cervical impairments. Pain associated with movement tests and tissue mechanosensitivity was found to be an important factor in bruxism. CONCLUSION Clinicians need to be aware that signs of cervical movement impairment are not likely to be associated with bruxism, rather they should focus on improving orofacial function and tissue mechanosensitivity.
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Affiliation(s)
- Harry von Piekartz
- University of Applied Science Osnabrück, Department of Physical Therapy and Rehabilitation, Caprivistrasse 30a, 49076, Osnabrueck, Germany.
| | - Charlotte Rösner
- University of Applied Science Osnabrück, Department of Physical Therapy and Rehabilitation, Caprivistrasse 30a, 49076, Osnabrueck, Germany.
| | - Angelina Batz
- University of Applied Science Osnabrück, Department of Physical Therapy and Rehabilitation, Caprivistrasse 30a, 49076, Osnabrueck, Germany.
| | - Toby Hall
- School of Physiotherapy and Exercise Science, Curtin University, Perth, Australia.
| | - Nicolaus Ballenberger
- University of Applied Science Osnabrück, Department of Physical Therapy and Rehabilitation, Caprivistrasse 30a, 49076, Osnabrueck, Germany.
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Wiesinger B, Häggman-Henrikson B, Eklund A, Wänman A, Hellström F. Multimodal Sensory Stimulation of the Masseter Muscle Reduced Precision but Not Accuracy of Jaw-Opening Movements. Front Neurosci 2019; 13:1083. [PMID: 31649503 PMCID: PMC6795680 DOI: 10.3389/fnins.2019.01083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 09/25/2019] [Indexed: 11/13/2022] Open
Abstract
A functional integration between the trigeminal and craniocervical sensorimotor systems has been demonstrated, with simultaneous jaw and head–neck movements during jaw opening–closing. We previously showed that pain induction in the masseter muscle increased the relative contribution of the neck component of integrated jaw–neck movements. Induced pain or manipulation of proprioception by vibration did not affect accuracy during a jaw-opening task in men. It is not known how multimodal sensory stimulation, with a combination of pain induction and vibration, affects jaw-opening accuracy and precision. The aim was to investigate how jaw–neck movements, and specifically accuracy and precision of jaw-opening, are affected during concomitant nociceptive and proprioceptive stimulation of the masseter muscle. Twenty-one healthy men performed jaw-opening to a target position, defined as 75% of individual maximum jaw opening, during control (Ctr), vibration of masseter muscles (Vib), pain induction in the masseter (Pain), and concomitant vibration and pain induction in the masseter muscle (VibPain). Simultaneous jaw and head movements were recorded with an optoelectronic system and amplitudes calculated for each jaw opening–closing cycle. Accuracy of jaw movements was defined as the achievement of the target position. Precision of jaw movements was defined as the cycle-to-cycle variability from the mean of cycles 2–10 (coefficient of variation, CV). Differences between the trials were analyzed with Friedman’s test, Dunn’s test, and Benjamini–Hochberg correction. There were no significant differences between the trials for jaw movement amplitudes. For head movements, amplitudes for cycles 2–10 were larger during Pain compared to Ctr and Vib (both p = 0.034), and larger during VibPain compared to Ctr (p = 0.034) and Vib (p = 0.035). There were no differences in accuracy of jaw movements between the trials. For precision of jaw movements, the cycle-to-cycle variability was larger during VibPain compared to Ctr (p = 0.027) and Vib (p = 0.018). For integrated jaw–neck motor strategy, there was a difference between pain and non-pain trials, but no differences between unimodal and multimodal stimulation trials. For achievement of jaw-opening to a target position, the results show no effect on accuracy, but a reduced precision of jaw movements during combined proprioceptive and nociceptive multimodal stimulation.
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Affiliation(s)
- Birgitta Wiesinger
- Department of Odontology, Clinical Oral Physiology, Umeå University, Umeå, Sweden.,Department of Research and Development, Västernorrland County Council, Umeå University, Sundsvall, Sweden
| | - Birgitta Häggman-Henrikson
- Department of Odontology, Clinical Oral Physiology, Umeå University, Umeå, Sweden.,Department of Orofacial Pain and Jaw Function, Malmö University, Malmö, Sweden
| | - Anton Eklund
- Department of Odontology, Clinical Oral Physiology, Umeå University, Umeå, Sweden
| | - Anders Wänman
- Department of Odontology, Clinical Oral Physiology, Umeå University, Umeå, Sweden
| | - Fredrik Hellström
- Centre for Musculoskeletal Research, Gävle University College, Umeå, Sweden
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14
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Österlund C, Nilsson E, Hellström F, Häger CK, Häggman-Henrikson B. Jaw-neck movement integration in 6-year-old children differs from that of adults. J Oral Rehabil 2019; 47:27-35. [PMID: 31357241 DOI: 10.1111/joor.12865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 07/03/2019] [Accepted: 07/18/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND A functional integration between the jaw and neck regions during purposive jaw movements is well described in adults, but there is a lack of knowledge of such integration during jaw function in children. OBJECTIVES To determine the movement integration between the jaw and neck during jaw motor tasks in 6-year-olds, whether there is a difference between children and adults. METHODS Jaw and neck movements were recorded with an optoelectronic 3D system in 25 healthy 6-year-olds (12 girls, 13 boys) and 24 healthy adults (12 women, 12 men) during paced jaw opening-closing and self-paced gum chewing. Jaw and neck movement amplitudes, intra-individual variation in movement amplitude, ratio between neck-jaw movement amplitudes and movement cycle time were analysed. Differences between children and adults were evaluated with Mann-Whitney U test for independent samples. RESULTS Compared to adults, 6-year-old children showed larger neck movement amplitudes (P = .008) during chewing, higher intra-individual variability in amplitudes of jaw (P = .008) and neck (P = .001) movements, higher ratio between neck-jaw movement amplitudes for jaw opening-closing (P = .026) and chewing (P = .003), and longer jaw movement cycle time (P ≤ .0001) during the jaw opening-closing task. CONCLUSION Despite integrated jaw-neck movements in 6-year-old children, the movement pattern differs from that of adults and may be interpreted as an immature programming of jaw-neck motor behaviour. The well-integrated movements observed in adults most likely develop over years, perhaps into adolescence, and needs further research including well-controlled longitudinal studies to map this development in order to provide appropriate age-related clinical treatment for functional disorders.
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Affiliation(s)
- Catharina Österlund
- Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, University of Umeå, Umeå, Sweden
| | - Evelina Nilsson
- Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, University of Umeå, Umeå, Sweden
| | - Fredrik Hellström
- Department of Occupational and Public Health Sciences, Faculty of Health and Occupational Studies, Centre for Musculoskeletal Research, University of Gävle, Gävle, Sweden
| | - Charlotte K Häger
- Department of Community Medicine and Rehabilitation, Faculty of Medicine, University of Umeå, Umeå, Sweden
| | - Birgitta Häggman-Henrikson
- Department of Orofacial Pain and Jaw Function, Faculty of Odontology, University of Malmö, Malmö, Sweden.,Scandinavian Center for Orofacial Neurosciences (SCON), Malmö, Sweden
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15
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Julià-Sánchez S, Álvarez-Herms J, Burtscher M. Dental occlusion and body balance: A question of environmental constraints? J Oral Rehabil 2019; 46:388-397. [DOI: 10.1111/joor.12767] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 01/05/2019] [Accepted: 01/13/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Sonia Julià-Sánchez
- Departament de Fisiologia i Immunologia; Universitat de Barcelona (UB); Barcelona Spain
| | - Jesús Álvarez-Herms
- Departament de Fisiologia i Immunologia; Universitat de Barcelona (UB); Barcelona Spain
| | - Martin Burtscher
- Department of Sport Science; University Innsbruck; Innsbruck Austria
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16
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Giannakopoulos NN, Schindler HJ, Hellmann D. Co-contraction behaviour of masticatory and neck muscles during tooth grinding. J Oral Rehabil 2018; 45:504-511. [PMID: 29761534 DOI: 10.1111/joor.12646] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2018] [Indexed: 12/19/2022]
Abstract
The objective of this study was to analyse the co-contraction behaviour of jaw and neck muscles during force-controlled experimental grinding in the supine position. Twelve symptom-free subjects were enrolled in the experimental study. Electromyographic (EMG) activity of semispinalis capitis, splenius capitis and levator scapulae muscles was recorded bilaterally with intramuscular fine-wire electrodes, whereas that of sternocleidomastoideus, infrahyoidal, suprahyoidal, masseter and anterior temporalis muscles were registered with surface electrodes. EMG and force measurements were performed during tasks simulating tooth grinding on custom-made intraoral metal splints. The mean EMG activity normalised by maximum voluntary contraction (% MVC) of each of the neck muscles studied during grinding was analysed and compared with previous data from jaw clenching at identical force (100 N) and (supine) position. The occurrence of low-level, long-lasting tonic activation (LLTA) of motor units was also documented. The mean three-dimensional force vector of the grinding forces was 106 ± 74 N. In the frontal plane, the incline to the midsagittal plane ranged between 10° and 15°. In the midsagittal plane, the incline to the frontal plane was negligibly small. Posterior neck muscle activity during grinding ranged between 4.5% and 12% MVC and during clenching with 100 N between 1.8% and 9.9% MVC. Masticatory muscle activity during grinding ranged between 17% and 21% MVC for contralateral masseter and ipsilateral temporalis and between 4% and 6.5% for ipsilateral masseter and contralateral temporalis. LLTA had an average duration of 195 ± 10 seconds. The findings from this study do not support pathophysiological muscle chain theories postulating simple biomechanical coupling of neck and jaw muscles. Co-contractions of neck and masticatory muscles may instead occur as a result of complex neurophysiological interactions.
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Affiliation(s)
| | - H J Schindler
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
| | - D Hellmann
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
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17
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Häggman-Henrikson B, Wiesinger B, Wänman A. The effect of supervised exercise on localized TMD pain and TMD pain associated with generalized pain. Acta Odontol Scand 2018; 76:6-12. [PMID: 28870137 DOI: 10.1080/00016357.2017.1373304] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVES To evaluate the effect of a supervised exercise program in patients with localized/regional temporomandibular disorder (TMD) pain and with TMD associated with generalized pain. MATERIAL AND METHODS Consecutively referred patients with localized/regional TMD pain (n = 56; 46 women and 10 men, mean age 44 years) and TMD associated with generalized pain (n = 21; 21 women, mean age 41 years) participated. Patients underwent a 10-session structured supervised exercise program over 10-20 weeks that included relaxation, and coordination and resistance training of the jaw and neck/shoulders. The outcomes were jaw pain intensity on the Numerical Rating Scale, endurance time for jaw opening and protrusion against resistance and chewing, and effect of pain on daily activities. RESULTS After the exercise program, a reduction in jaw pain was reported by the local (p = .001) and general (p = .011) pain groups. There were no significant differences in jaw pain intensity between the groups, before (p = .062) or after treatment (p = .121). Endurance time increased for both groups for jaw opening/protrusion (both p < .001) and chewing (both p = .002). The effect of jaw pain on daily activities decreased after exercise compared to baseline for both the local (p < .001) and general (p = .008) pain groups. CONCLUSIONS Supervised exercise can reduce TMD pain and increase capacity in patients with TMD. The results suggest that activation of the jaw motor system with exercise has a positive effect in patients with localized/regional TMD pain and TMD associated with generalized pain.
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Affiliation(s)
- Birgitta Häggman-Henrikson
- Department of Odontology/Clinical Oral Physiology, Umeå University, Umeå, Sweden
- Department of Orofacial pain and Jaw function, Malmö University, Malmö, Sweden
| | - Birgitta Wiesinger
- Department of Odontology/Clinical Oral Physiology, Umeå University, Umeå, Sweden
- Department of Research and Development, Västernorrland County Council, Umeå University, Umeå, Sweden
| | - Anders Wänman
- Department of Odontology/Clinical Oral Physiology, Umeå University, Umeå, Sweden
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18
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Guo SX, Li BY, Zhang Y, Zhou LJ, Liu L, Widmalm SE, Wang MQ. An electromyographic study on the sequential recruitment of bilateral sternocleidomastoid and masseter muscle activity during gum chewing. J Oral Rehabil 2017; 44:594-601. [PMID: 28548212 DOI: 10.1111/joor.12527] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2017] [Indexed: 11/30/2022]
Affiliation(s)
- S.-X. Guo
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases; Department of Oral Anatomy and Physiology and TMD; School of Stomatology; The Fourth Military Medical University; Xi ‘an China
| | - B.-Y. Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases; Department of Oral Anatomy and Physiology and TMD; School of Stomatology; The Fourth Military Medical University; Xi ‘an China
| | - Y. Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases; Department of Oral Anatomy and Physiology and TMD; School of Stomatology; The Fourth Military Medical University; Xi ‘an China
| | - L.-J. Zhou
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases; Department of Oral Anatomy and Physiology and TMD; School of Stomatology; The Fourth Military Medical University; Xi ‘an China
| | - L. Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases; Department of Oral Anatomy and Physiology and TMD; School of Stomatology; The Fourth Military Medical University; Xi ‘an China
| | - S.-E. Widmalm
- Specialist of Stomatognathic Physiology; Division of Prosthodontics; Department of Biological and Materials Sciences; University of Michigan; Ann Arbor MI USA
| | - M.-Q. Wang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases; Department of Oral Anatomy and Physiology and TMD; School of Stomatology; The Fourth Military Medical University; Xi ‘an China
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19
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Pasinato F, Santos-Couto-Paz CC, Zeredo JLL, Macedo SB, Corrêa EC. Experimentally induced masseter-pain changes masseter but not sternocleidomastoid muscle-related activity during mastication. J Electromyogr Kinesiol 2016; 31:88-95. [DOI: 10.1016/j.jelekin.2016.09.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/30/2016] [Accepted: 09/26/2016] [Indexed: 11/24/2022] Open
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20
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The fascicular anatomy and peak force capabilities of the sternocleidomastoid muscle. Surg Radiol Anat 2016; 39:629-645. [DOI: 10.1007/s00276-016-1768-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 10/26/2016] [Indexed: 11/26/2022]
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21
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Häggman-Henrikson B, Lampa E, Marklund S, Wänman A. Pain and Disability in the Jaw and Neck Region following Whiplash Trauma. J Dent Res 2016; 95:1155-60. [PMID: 27307051 DOI: 10.1177/0022034516653598] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The relationship between whiplash trauma and chronic orofacial pain is unclear, especially with regard to the time elapsed from trauma to development of orofacial pain. The aim was to analyze prevalence of jaw pain and disability, as well as the relationship between pain and disability in the jaw and neck regions in the early nonchronic stage after whiplash trauma. In this case-control study, 70 individuals (40 women, 30 men, mean age 35.5 y) who visited an emergency department with neck pain following a car accident were examined within 3 wk of trauma (group 1) and compared with 70 individuals (42 women, 28 men, mean age 33.8 y), who declined to attend a clinical examination but agreed to fill in questionnaires (group 2). The 2 case groups were compared with a matched control group of 70 individuals (42 women, 28 men, mean age 37.6 y) without a history of neck trauma. All participants completed questionnaires regarding jaw pain and dysfunction, rating pain intensity in jaw and neck regions on the Numerical Rating Scale, the Neck Disability Index, and Jaw Disability Checklist. Compared with controls, individuals with a recent whiplash trauma reported more jaw pain and dysfunction. Furthermore, there was a moderate positive correlation between jaw and neck pain ratings for group 1 (r = 0.61, P < 0.0001) and group 2 (r = 0.59, P < 0.0001). In the logistic regression analysis, cases showed higher odds ratios (range, 6.1 to 40.8) for jaw and neck pain and disability compared with controls. Taken together, the results show that individuals with a recent whiplash trauma report more jaw pain and disability compared with controls without a history of neck trauma. Furthermore, the correlation between jaw and neck pain intensity implies that intensity of neck pain in the acute stage after whiplash trauma might be a possible risk factor also for development of chronic orofacial pain.
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Affiliation(s)
- B Häggman-Henrikson
- Clinical Oral Physiology, Umeå University, Umeå, Sweden Department of Orofacial Pain and Jaw Function, Malmö University, Malmö, Sweden
| | - E Lampa
- Clinical Oral Physiology, Umeå University, Umeå, Sweden
| | - S Marklund
- Clinical Oral Physiology, Umeå University, Umeå, Sweden
| | - A Wänman
- Clinical Oral Physiology, Umeå University, Umeå, Sweden
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22
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Ishii T, Narita N, Endo H. Evaluation of jaw and neck muscle activities while chewing using EMG-EMG transfer function and EMG-EMG coherence function analyses in healthy subjects. Physiol Behav 2016; 160:35-42. [PMID: 27059322 DOI: 10.1016/j.physbeh.2016.03.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/25/2016] [Accepted: 03/17/2016] [Indexed: 02/07/2023]
Abstract
This study aims to quantitatively clarify the physiological features in rhythmically coordinated jaw and neck muscle EMG activities while chewing gum using EMG-EMG transfer function and EMG-EMG coherence function analyses in 20 healthy subjects. The chewing side masseter muscle EMG signal was used as the reference signal, while the other jaw (non-chewing side masseter muscle, bilateral anterior temporal muscles, and bilateral anterior digastric muscles) and neck muscle (bilateral sternocleidomastoid muscles) EMG signals were used as the examined signals in EMG-EMG transfer function and EMG-EMG coherence function analyses. Chewing-related jaw and neck muscle activities were aggregated in the first peak of the power spectrum in rhythmic chewing. The gain in the peak frequency represented the power relationships between jaw and neck muscle activities during rhythmic chewing. The phase in the peak frequency represented the temporal relationships between the jaw and neck muscle activities, while the non-chewing side neck muscle presented a broad range of distributions across jaw closing and opening phases. Coherence in the peak frequency represented the synergistic features in bilateral jaw closing muscles and chewing side neck muscle activities. The coherence and phase in non-chewing side neck muscle activities exhibited a significant negative correlation. From above, the bilateral coordination between the jaw and neck muscle activities is estimated while chewing when the non-chewing side neck muscle is synchronously activated with the jaw closing muscles, while the unilateral coordination is estimated when the non-chewing side neck muscle is irregularly activated in the jaw opening phase. Thus, the occurrence of bilateral or unilateral coordinated features in the jaw and neck muscle activities may correspond to the phase characteristics in the non-chewing side neck muscle activities during rhythmical chewing. Considering these novel findings in healthy subjects, EMG-EMG transfer function and EMG-EMG coherence function analyses may also be useful to diagnose the pathologically in-coordinated features in jaw and neck muscle activities in temporomandibular disorders and whiplash-associated disorders during critical chewing performance.
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Affiliation(s)
- Tomohiro Ishii
- Nihon University School of Dentistry at Matsudo, Department of Removable Prosthodontics, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan.
| | - Noriyuki Narita
- Nihon University School of Dentistry at Matsudo, Department of Removable Prosthodontics, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan.
| | - Hiroshi Endo
- Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1 Higashi, Tsukuba, Ibaraki, 305-8566, Japan.
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23
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Fuentes AD, Miralles R, Santander H, Gutiérrez MF, Bull R, Martin C. Effect of natural mediotrusive contact on electromyographic activity of jaw and cervical muscles during chewing. Acta Odontol Scand 2015; 73:626-32. [PMID: 25891182 DOI: 10.3109/00016357.2015.1030767] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE This study evaluated the effect of a natural mediotrusive contact on the electromyographic (EMG) activity of the anterior temporalis and sternocleidomastoid muscles during chewing in healthy subjects. MATERIALS AND METHODS The study sample included two groups of 15 subjects each (Group 1: with natural mediotrusive contact; Group 2: without natural mediotrusive contact). Bilateral surface EMG activity was recorded on anterior temporalis and sternocleidomastoid muscles during unilateral chewing of a half cookie and unilateral chewing of a piece of apple. Anterior temporalis and sternocleidomastoid muscle activity was normalized against activity recorded during maximal voluntary clenching in intercuspal position and maximal intentional isometric head-neck rotation to each side, respectively. The partial and total asymmetry indexes were also calculated. Data were analyzed using Mann-Whitney, Wilcoxon and unpaired t-test. RESULTS EMG activity of anterior temporalis and sternocleidomastoid muscles showed no significant difference between the groups. EMG activity of anterior temporalis was similar between working and non-working sides during chewing in both groups. EMG activity of sternocleidomastoid muscle was higher in the working side than in the non-working side in Group 2 subjects. Asymmetry indexes were not significantly different between groups. CONCLUSIONS The similar EMG pattern and asymmetry indexes observed suggest the predominance of central nervous control over peripheral inputs on anterior temporalis and sternocleidomastoid motor neuron pools.
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Affiliation(s)
- Aler Daniel Fuentes
- Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile , Santiago , Chile
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24
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La Touche R, Paris-Alemany A, Gil-Martínez A, Pardo-Montero J, Angulo-Díaz-Parreño S, Fernández-Carnero J. Masticatory sensory-motor changes after an experimental chewing test influenced by pain catastrophizing and neck-pain-related disability in patients with headache attributed to temporomandibular disorders. J Headache Pain 2015; 16:20. [PMID: 25902781 PMCID: PMC4385233 DOI: 10.1186/s10194-015-0500-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 02/04/2015] [Indexed: 01/03/2023] Open
Abstract
Background Recent research has shown a relationship of craniomandibular disability with neck-pain-related disability has been shown. However, there is still insufficient information demonstrating the influence of neck pain and disability in the sensory-motor activity in patients with headache attributed to temporomandibular disorders (TMD). The purpose of this study was to investigate the influence of neck-pain-related disability on masticatory sensory-motor variables. Methods An experimental case–control study investigated 83 patients with headache attributed to TMD and 39 healthy controls. Patients were grouped according to their scores on the neck disability index (NDI) (mild and moderate neck disability). Initial assessment included the pain catastrophizing scale and the Headache Impact Test-6. The protocol consisted of baseline measurements of pressure pain thresholds (PPT) and pain-free maximum mouth opening (MMO). Individuals were asked to perform the provocation chewing test, and measurements were taken immediately after and 24 hours later. During the test, patients were assessed for subjective feelings of fatigue (VAFS) and pain intensity. Results VAFS was higher at 6 minutes (mean 51.7; 95% CI: 50.15-53.26) and 24 hours after (21.08; 95% CI: 18.6-23.5) for the group showing moderate neck disability compared with the mild neck disability group (6 minutes, 44.16; 95% CI 42.65-45.67/ 24 hours after, 14.3; 95% CI: 11.9-16.7) and the control group. The analysis shows a decrease in the pain-free MMO only in the group of moderate disability 24 hours after the test. PPTs of the trigeminal region decreased immediately in all groups, whereas at 24 hours, a decrease was observed in only the groups of patients. PPTs of the cervical region decreased in only the group with moderate neck disability 24 hours after the test. The strongest negative correlation was found between pain-free MMO immediately after the test and NDI in both the mild (r = −0.49) and moderate (r = −0.54) neck disability groups. VAFS was predicted by catastrophizing, explaining 17% of the variance in the moderate neck disability group and 12% in the mild neck disability group. Conclusion Neck-pain-related disability and pain catastrophizing have an influence on the sensory-motor variables evaluated in patients with headache attributed to TMD.
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Affiliation(s)
- Roy La Touche
- Department of Physiotherapy, Faculty of Health Science, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madrid, Aravaca, Madrid, Spain. .,Motion in Brains Research Group, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madird, Aravaca, Madrid, Spain. .,Institute of Neuroscience and Craniofacial Pain (INDCRAN), Madrid, Spain. .,Hospital La Paz Institute for Health Research, IdiPAZ, Madrid, Spain.
| | - Alba Paris-Alemany
- Department of Physiotherapy, Faculty of Health Science, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madrid, Aravaca, Madrid, Spain. .,Motion in Brains Research Group, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madird, Aravaca, Madrid, Spain. .,Institute of Neuroscience and Craniofacial Pain (INDCRAN), Madrid, Spain. .,Hospital La Paz Institute for Health Research, IdiPAZ, Madrid, Spain.
| | - Alfonso Gil-Martínez
- Department of Physiotherapy, Faculty of Health Science, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madrid, Aravaca, Madrid, Spain. .,Motion in Brains Research Group, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madird, Aravaca, Madrid, Spain. .,Institute of Neuroscience and Craniofacial Pain (INDCRAN), Madrid, Spain. .,Hospital La Paz Institute for Health Research, IdiPAZ, Madrid, Spain.
| | - Joaquín Pardo-Montero
- Department of Physiotherapy, Faculty of Health Science, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madrid, Aravaca, Madrid, Spain. .,Motion in Brains Research Group, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madird, Aravaca, Madrid, Spain. .,Institute of Neuroscience and Craniofacial Pain (INDCRAN), Madrid, Spain. .,Hospital La Paz Institute for Health Research, IdiPAZ, Madrid, Spain.
| | - Santiago Angulo-Díaz-Parreño
- Motion in Brains Research Group, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madird, Aravaca, Madrid, Spain. .,Institute of Neuroscience and Craniofacial Pain (INDCRAN), Madrid, Spain. .,Faculty of Medicine, Universidad San Pablo CEU, Madrid, Spain.
| | - Josué Fernández-Carnero
- Motion in Brains Research Group, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madird, Aravaca, Madrid, Spain. .,Hospital La Paz Institute for Health Research, IdiPAZ, Madrid, Spain. .,Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain.
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Wiesinger B, Häggman-Henrikson B, Wänman A, Lindkvist M, Hellström F. Jaw-opening accuracy is not affected by masseter muscle vibration in healthy men. Exp Brain Res 2014; 232:3501-8. [PMID: 25059909 DOI: 10.1007/s00221-014-4037-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 07/05/2014] [Indexed: 12/27/2022]
Abstract
There is a functional integration between the jaw and neck regions with head extension-flexion movements during jaw-opening/closing tasks. We recently reported that trigeminal nociceptive input by injection of hypertonic saline into the masseter muscle altered this integrated jaw-neck function during jaw-opening/closing tasks. Thus, in jaw-opening to a predefined position, the head-neck component increased during pain. Previous studies have indicated that muscle spindle stimulation by vibration of the masseter muscle may influence jaw movement amplitudes, but the possible effect on the integrated jaw-neck function is unknown. The aim of this study was to investigate the effect of masseter muscle vibration on jaw-head movements during a continuous jaw-opening/closing task to a target position. Sixteen healthy men performed two trials without vibration (Control) and two trials with bilateral masseter muscle vibration (Vibration). Movements of the mandible and the head were registered with a wireless three-dimensional optoelectronic recording system. Differences in jaw-opening and head movement amplitudes between Control and Vibration, as well as achievement of the predefined jaw-opening target position, were analysed with Wilcoxon's matched pairs test. No significant group effects from vibration were found for jaw or head movement amplitudes, or in the achievement of the target jaw-opening position. A covariation between the jaw and head movement amplitudes was observed. The results imply a high stability for the jaw motor system in a target jaw-opening task and that this task was achieved with the head-neck and jaw working as an integrated system.
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Affiliation(s)
- B Wiesinger
- Department of Odontology, Clinical Oral Physiology, Umeå University, 90187, Umeå, Sweden,
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26
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Surface raw electromyography has a moderate discriminatory capacity for differentiating between healthy individuals and those with TMD: A diagnostic study. J Electromyogr Kinesiol 2014; 24:332-40. [DOI: 10.1016/j.jelekin.2014.03.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2013] [Revised: 03/02/2014] [Accepted: 03/03/2014] [Indexed: 11/24/2022] Open
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