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Cecchin-Albertoni C, Deny O, Planat-Bénard V, Guissard C, Paupert J, Vaysse F, Marty M, Casteilla L, Monsarrat P, Kémoun P. The oral organ: A new vision of the mouth as a whole for a gerophysiological approach to healthy aging. Ageing Res Rev 2024; 99:102360. [PMID: 38821417 DOI: 10.1016/j.arr.2024.102360] [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: 01/25/2024] [Revised: 05/07/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
This article brings a new perspective on oral physiology by presenting the oral organ as an integrated entity within the entire organism and its surrounding environment. Rather than considering the mouth solely as a collection of discrete functions, this novel approach emphasizes its role as a dynamic interphase, supporting interactions between the body and external factors. As a resilient ecosystem, the equilibrium of mouth ecological niches is the result of a large number of interconnected factors including the heterogeneity of different oral structures, diversity of resources, external and internal pressures and biological actors. The manuscript seeks to deepen the understanding of age-related changes within the oral cavity and throughout the organism, aligning with the evolving field of gerophysiology. The strategic position and fundamental function of the mouth make it an invaluable target for early prevention, diagnosis, treatment, and even reversal of aging effects throughout the entire organism. Recognizing the oral cavity capacity for sensory perception, element capture and information processing underscores its vital role in continuous health monitoring. Overall, this integrated understanding of the oral physiology aims at advancing comprehensive approaches to the oral healthcare and promoting broader awareness of its implications on the overall well-being.
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Affiliation(s)
- Chiara Cecchin-Albertoni
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Olivier Deny
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Valérie Planat-Bénard
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Christophe Guissard
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Jenny Paupert
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Frédéric Vaysse
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France
| | - Mathieu Marty
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; LIRDEF, Faculty of Educational Sciences, Paul Valery University, Montpellier CEDEX 5 34199, France
| | - Louis Casteilla
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Paul Monsarrat
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France; Artificial and Natural Intelligence Toulouse Institute ANITI, Toulouse, France
| | - Philippe Kémoun
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France.
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Ardila CM, Jiménez-Arbeláez GA, Vivares-Builes AM. Efficacy of wireless sensors in assessing occlusal and bite forces: A systematic review. J Oral Rehabil 2024; 51:1337-1347. [PMID: 38616519 DOI: 10.1111/joor.13700] [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: 12/17/2023] [Revised: 04/01/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND The noteworthy correlation between bite force and masticatory performance emphasizes its significance as a meaningful and objective method for assessing oral function. Furthermore, in the study of bruxism, the measurement of intraoral bite force assumes critical importance. Given the importance of assessing occlusal forces and bite force, this systematic review aims to assess the efficacy of wireless sensors in measuring these forces. METHODS The search methodology employed in this systematic review adhered to the guidelines outlined by PRISMA. The strategy involved the exploration of various databases, including PubMed/MEDLINE, SCOPUS and SCIELO. An assessment tool was employed to evaluate the bias risk and study quality. RESULTS This systematic review encompassed six prospective clinical studies involving a total of 89 participants. Wireless sensors for measuring occlusal forces and bite forces were predominantly employed in healthy adults or individuals with bruxism, along with children undergoing orthodontic treatment. All wireless sensors employed in the studies underwent validation and reproducibility assessments, affirming their reliability. The findings indicated that all wireless sensors exhibited efficacy in detecting occlusal forces and bite forces. CONCLUSION Wireless sensors offer real-time monitoring of occlusal and bite forces, aiding in understanding force distribution and identifying bruxism patterns. Despite limited studies on their application, these sensors contribute to evolving insights. Integration into clinical practice requires careful consideration of factors like calibration and patient compliance. Ongoing research is crucial to address limitations and enhance the efficacy of wireless sensors in measuring occlusal and bite forces and managing bruxism.
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Affiliation(s)
- Carlos-M Ardila
- Biomedical Stomatology Research Group, Universidad de Antioquia U de A, Medellín, Colombia
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Hellmann D, Fadillioglu C, Kanus L, Möhler F, Schindler HJ, Schmitter M, Stein T, Ringhof S. Influence of oral motor tasks on postural muscle activity during dynamic reactive balance. J Oral Rehabil 2024; 51:1041-1049. [PMID: 38491728 DOI: 10.1111/joor.13659] [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: 10/24/2023] [Revised: 01/06/2024] [Accepted: 02/05/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Jaw clenching improves dynamic reactive balance on an oscillating platform during forward acceleration and is associated with decreased mean sway speed of different body regions. OBJECTIVE It is suggested that jaw clenching as a concurrent muscle activity facilitates human motor excitability, increasing the neural drive to distal muscles. The underlying mechanism behind this phenomenon was studied based on leg and trunk muscle activity (iEMG) and co-contraction ratio (CCR). METHODS Forty-eight physically active and healthy adults were assigned to three groups, performing three oral motor tasks (jaw clenching, tongue pressing against the palate or habitual lower jaw position) during a dynamic one-legged stance reactive balance task on an oscillating platform. The iEMG and CCR of posture-relevant muscles and muscle pairs were analysed during platform forward acceleration. RESULTS Tongue pressing caused an adjustment of co-contraction patterns of distal muscle groups based on changes in biomechanical coupling between the head and trunk during static balancing at the beginning of the experiment. Neither iEMG nor CCR measurement helped detect a general neuromuscular effect of jaw clenching on the dynamic reactive balance. CONCLUSION The findings might indicate the existence of robust fixed patterns of rapid postural responses during the important initial phases of balance recovery.
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Affiliation(s)
- Daniel Hellmann
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
- Dental Academy for Continuing Professional Development, Karlsruhe, Germany
| | - Cagla Fadillioglu
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Lisa Kanus
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
| | - Felix Möhler
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Hans J Schindler
- Dental Academy for Continuing Professional Development, Karlsruhe, Germany
| | - Marc Schmitter
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
| | - Thorsten Stein
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Steffen Ringhof
- Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany
- Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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Machado RR, Palinkas M, de Vasconcelos PB, Gollino S, Arnoni VW, Prandi MVR, Regalo IH, Siéssere S, Regalo SC. Lower limb balance, ankle dorsiflexion, orofacial tissue pressure, and occlusal force of rugby players. SPORTS MEDICINE AND HEALTH SCIENCE 2024; 6:173-178. [PMID: 38708318 PMCID: PMC11067736 DOI: 10.1016/j.smhs.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 11/11/2023] [Accepted: 12/04/2023] [Indexed: 05/07/2024] Open
Abstract
This cross-sectional study examined the lower limb balance, ankle dorsiflexion, orofacial tissue pressure, and occlusal strength of rugby players. Twenty-six participants were divided into groups: rugby players (n = 13) and healthy sedentary adults (n = 13). Participants underwent an analysis of lower limb balance using a composite score (Y-Balance Test). Ankle dorsiflexion was measured using the Lunge Test. The Iowa Oral Performance Instrument was employed to measure orofacial tissue pressure. Bite force was measured with a dynamometer, and T-Scan assessed occlusal contact distribution. Data were analyzed using the t-test (p < 0.05) and ANCOVA with age and weight as covariates, where it is possible to verify that these factors did not influence the results obtained. Significant differences were observed in the balance of the right (p = 0.07) and left (p = 0.02) lower limbs, where rugby players had lower composite scores. There were significant differences in the right (p = 0.005) and left (p = 0.004) lunges, with rugby players showing lower values, as well as lower tongue pressure (p = 0.01) and higher lip pressure (p = 0.03), with significant differences to sedentary participants. There was no significant difference in molar bite force and distribution occlusal contacts between groups. Rugby seems to reduce lower limb displacement, cause ankle hypomobility, lead to changes in orofacial tissues, particularly the tongue and lips. This study is significant for identifying significant differences between rugby players and sedentary individuals, providing new insights into the impact of rugby on health and performance, which can benefit sports training and injury prevention.
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Affiliation(s)
- Rafael R. Machado
- School of Dentistry of Ribeirão Preto, University of São Paulo, Brazil
| | - Marcelo Palinkas
- School of Dentistry of Ribeirão Preto, University of São Paulo, Brazil
- National Institute for Translational Medicine (INCT-TM), Ribeirão Preto, Brazil
| | | | - Sara Gollino
- School of Dentistry of Ribeirão Preto, University of São Paulo, Brazil
| | | | | | - Isabela H. Regalo
- School of Dentistry of Ribeirão Preto, University of São Paulo, Brazil
| | - Selma Siéssere
- School of Dentistry of Ribeirão Preto, University of São Paulo, Brazil
- National Institute for Translational Medicine (INCT-TM), Ribeirão Preto, Brazil
| | - Simone C.H. Regalo
- School of Dentistry of Ribeirão Preto, University of São Paulo, Brazil
- National Institute for Translational Medicine (INCT-TM), Ribeirão Preto, Brazil
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Bittar KCB, Zamboti CL, de Souza GMC. Mandible Position and Chewing Preference Side Do Not Alter Plantar Support in Children Aged 4-11 Years. Int J Clin Pediatr Dent 2024; 17:658-664. [PMID: 39391131 PMCID: PMC11463812 DOI: 10.5005/jp-journals-10005-2886] [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] [Indexed: 10/12/2024] Open
Abstract
Introduction Mandible positioning can cause global postural adaptations. Physiotherapists and dentists try to relate the mandible position and chewing side to plantar support; however, this indication is uncertain. Objectives To check the existence of a relationship between mandible position, preferred chewing side, age, and plantar support in children. Materials and methods This is a cross-sectional study with 93 children, aged between 4 and 11 years. Photogrammetry was used to confirm the mandibular positions (centralized, to the right, and to the left), and baropodometry was used to measure plantar support. The mandibular displacement distance to the right and left was evaluated, and the plantar support in the three mandibular positions was compared as a function of age (4-7 and 8-11 years) and preferred chewing side. Results There was greater mandibular displacement in left laterality [13 (9-19) cm] compared to right laterality [7 (3.50-12.00) cm] (p < 0.01). Mandibular position did not alter mean pressure, maximum pressure, or plantar support surface (p > 0.05). With the mandible centralized, higher mean pressure, maximum pressure, and surface area were observed in the left foot (p < 0.01). Older children showed greater mandibular displacement to the left (p < 0.01). No differences were observed for the variables of plantar support as a function of age (p > 0.05) and chewing side (p > 0.05). There was a moderate to strong correlation between age, body mass, height, and plantar surface area (0.63 < r < 0.83; p < 0.05) and between mean and maximum pressures of plantar support (0.58 < r < 0.89; p < 0.05). Conclusion Mandibular position, age, and preferred chewing side do not influence plantar support in children. How to cite this article Bittar KCB, Zamboti CL, Macedo CSG. Mandible Position and Chewing Preference Side Do Not Alter Plantar Support in Children Aged 4-11 Years. Int J Clin Pediatr Dent 2024;17(6):658-664.
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Afzoon S, Ghorbani F, Hasani M. Evaluation of the mandibular condyles trabecular structure in patients with severe class III pattern: a computed tomography (CT) fractal analysis study. Sci Rep 2023; 13:18183. [PMID: 37875543 PMCID: PMC10598208 DOI: 10.1038/s41598-023-45407-6] [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: 05/26/2023] [Accepted: 10/19/2023] [Indexed: 10/26/2023] Open
Abstract
Class III malocclusion is a combination of dental and skeletal disorders that causes discrepancies in occlusion. Malocclusion can affect the structure of the Temporomandibular joint (TMJ) resulting in many problems, one of which is affecting the internal structure of the bone. This study aimed to examine the morphological features of class III patients' trabecular structure of the mandibular condyle in comparison with normal class I individuals using fractal analysis (FA). To study the internal structure of the mandibular condyle bone, Computed Tomography (CT) scans of 45 severe class III patients (age: 16-46) who were the candidates for orthognathic surgery were selected and matched by age and sex with 45 normal class I individuals. The trabecular bone structure of the left and right mandibular condyles in three CT planes of the study group and control group were evaluated employing the FA. The result of the present study indicated that the fractal dimensions (FD) values of class III patients were lower than those of the normal class I individuals in axial (class I: 1.31 ± 0.02, class III: 1.28 ± 0.02), sagittal (class I: 1.25 ± 0.03, class III: 1.19 ± 0.08), and coronal (class I: 1.5 ± 0.06, class III: 1.45 ± 0.07) planes (P < 0.001). There were no significant differences between the FD values of the males and females. The intra-group evaluation revealed that there was no correlation between age and FD values. No evidence of laterality was found regarding the FD values of the right and left condyles. Given the noticeable differences between the FD values, it can be implied that severe class III malocclusion may affect the trabecular pattern of the cancellous bone of the mandibular condyle compared to class I individuals. Therefore, due to the altered trabecular structure, clinicians should be cautious when planning treatments for these patients.
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Affiliation(s)
- Saeed Afzoon
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Ghorbani
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahvash Hasani
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
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Kayabekir M, Tuncer M. Effect of teeth clenching on handgrip force in adult men: role of periodontal mechanoreceptors. Acta Neurol Belg 2023; 123:1945-1956. [PMID: 37351827 DOI: 10.1007/s13760-023-02283-1] [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: 02/23/2023] [Accepted: 05/05/2023] [Indexed: 06/24/2023]
Abstract
PURPOSE Voluntary teeth clenching is shown to increase the strength of muscle reflexes contributing to the improvement of postural stability. However, the interaction between the handgrip strength and teeth clenching is not yet understood. In this study, we aimed to evaluate the change in handgrip force in response to voluntary teeth clenching, and its relation to the peripheral receptors that play a central role in the control of mastication. METHODS Thirty-six healthy men were divided into two groups: aged 50-59 years, no dental prosthesis, and 53-62 years with total dental prosthesis. Each individual was given handgrip and teeth clenching instructions for five experiments: only handgrip, teeth clenching followed by handgrip without teeth clenching, teeth clenching followed by handgrip with teeth clenching, and the repetition of the last two instructions while wearing mouth guards. RESULTS Our findings showed that maximum handgrip force decreased and the resistance to fatigue increased in complete edentulous individuals using appropriate prostheses. Also, the significantly lower maximum handgrip force and higher resistance to fatigue values of the participants with dental prosthesis using a mouth guard while teeth clenching, revealed the central roles of periodontal mechanoreceptors. CONCLUSION Decreases in masticatory sensory information processes influence handgrip force values which is the most important indicator of motor function. The lack of periodontal mechanoreceptors associated with dental prosthesis usage may lead to a loss in muscle strength.
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Affiliation(s)
- Murat Kayabekir
- Department of Physiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
- Department of Physiology, Medical School, Atatürk University, 25240, Erzurum, Turkey.
| | - Meltem Tuncer
- Department of Physiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Belhassen S, Mat Q, Ferret C, Clavel R, Renaud B, Cabaraux P. Post-Traumatic Craniocervical Disorders From a Postural Control Perspective: A Narrative Review. BRAIN & NEUROREHABILITATION 2023; 16:e15. [PMID: 37554255 PMCID: PMC10404808 DOI: 10.12786/bn.2023.16.e15] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 06/12/2023] [Accepted: 06/19/2023] [Indexed: 08/10/2023] Open
Abstract
Mild traumatic brain injury (mTBI) and whiplash injury (WI) may lead to long-term disabling consequences known as post-concussive syndrome (PCS) and whiplash-associated disorders (WADs). PCS and WAD patients commonly complain of conditions encompassing dizziness, vertigo, headache, neck pain, visual complaints, anxiety, and neurocognitive dysfunctions. A proper medical work-up is a priority in order to rule out any acute treatable consequences. However investigations may remain poorly conclusive. Gathered in the head and neck structures, the ocular sensorimotor, the vestibular, and the cervical proprioceptive systems, all involved in postural control, may be damaged by mTBI or WI. Their dysfunctions are associated with a wide range of functional disorders including symptoms reported by PCS and WAD patients. In addition, the stomatognathic system needs to be specifically assessed particularly when associated to WI. Evidence for considering the post-traumatic impairment of these systems in PCS and WAD-related symptoms is still lacking but seems promising. Furthermore, few studies have considered the assessment and/or treatment of these widely interconnected systems from a comprehensive perspective. We argue that further research focusing on consequences of mTBI and WI on the systems involved in the postural control are necessary in order to bring new perspective of treatment.
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Affiliation(s)
- Serge Belhassen
- Groupe d'Etudes, de Recherche, d'Information et de Formation sur les Activités Posturo-Cinétiques (Gerifap), Juvignac, France
| | - Quentin Mat
- Department of Otorhinolaryngology, Centre Hospitalier Universitaire (CHU) Charleroi, Charleroi, Belgium
| | - Claude Ferret
- Departments of Oral Health Sciences and Otorhinolaryngology, Centre Hospitalier Universitaire (CHU) de Montpellier, Montpellier, France
| | - Robert Clavel
- Groupe d'Etudes, de Recherche, d'Information et de Formation sur les Activités Posturo-Cinétiques (Gerifap), Juvignac, France
| | - Bernard Renaud
- Groupe d'Etudes, de Recherche, d'Information et de Formation sur les Activités Posturo-Cinétiques (Gerifap), Juvignac, France
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Gonçalves LMN, Palinkas M, Regalo IH, Gonçalves PN, de Vasconcelos PB, Matsumoto MAN, Siéssere S, Regalo SCH. Orthodontic treatment of children with anterior open bite and posterior crossbite: An analysis of the stomatognathic system. J Oral Biol Craniofac Res 2023; 13:117-124. [PMID: 37065972 PMCID: PMC10091141 DOI: 10.1016/j.jobcr.2022.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 10/21/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Dental malocclusions are deviations from normalities due to the inadequate growth and development of the dental arch which provides functional changes to the stomatognathic system. The aim of this longitudinal study was to evaluate the electromyographic activity (EMG) the masseter and temporalis muscles, strength of the orofacial tissues and occlusal force of children with anterior open bite (n = 15) and posterior crossbite (n = 20), 7 days after the removal of the orthodontic apparatus. A fixed horizontal palatal crib was used in the treatment of anterior open bite and the fixed appliances Hyrax or MacNamara was used in the treatment of posterior crossbite. EMG of the masticatory muscles was recorded using an electromyograph with wireless sensors during mandibular tasks. Habitual chewing was assessed using the integral of the linear envelope of the electromyographic signal in the masticatory cycles. The strength of the tongue and facial muscles was measured using the Iowa Oral Pressure Instrument. T-Scan was used to analyze the force of occlusal contact. Molar bite force was measured by digital dynamometer. Significant differences (p < 0.05) were found in the EMG data of the masseter and temporalis muscles in the static and dynamic mandibular tasks. There were no significant difference in strength of orofacial tissues, occlusal contact force and molar bite force 7 days after the removal of the orthodontic apparatus. The results of this study suggest that the orthodontic treatment of anterior open bite and posterior crossbite in children promoted functional alteration in the electromyographic activity of masseter and temporalis muscles.
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Affiliation(s)
- Lígia Maria Napolitano Gonçalves
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marcelo Palinkas
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
- National Institute for Translational Medicine (INCT-TM), Ribeirão Preto, Brazil
| | - Isabela Hallak Regalo
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Paula Napolitano Gonçalves
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Paulo Batista de Vasconcelos
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Mirian Aiko Nakane Matsumoto
- Department of Pediatric Clinic, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Selma Siéssere
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
- National Institute for Translational Medicine (INCT-TM), Ribeirão Preto, Brazil
| | - Simone Cecilio Hallak Regalo
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
- National Institute for Translational Medicine (INCT-TM), Ribeirão Preto, Brazil
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Różańska-Perlińska D, Jaszczur-Nowicki J, Kruczkowski D, Bukowska JM. Dental Malocclusion in Mixed Dentition Children and Its Relation to Podal System and Gait Parameters. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2716. [PMID: 36768082 PMCID: PMC9916284 DOI: 10.3390/ijerph20032716] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Dental malocclusion is an increasingly frequent stomatognathic disorder in children and adolescents nowadays. The purpose of this study was to confirm or deny the correlations between body posture and malocclusion. METHODS In the study, gait, distribution of foot pressure on the ground, and body balance were examined. The research group consisted of 76 patients aged 12-15 years. The research group was obtained from patients attending periodic dental check-ups at Healthcare Center Your Health EL who agreed to participate in the study. The patients were divided into two groups without malocclusion and with malocclusion, using Angle classification, which enabled determination of the anteroposterior relationship of the first molars. The pedobarographic mat was used to analyze the distribution of foot forces on the ground, the diagnostic system Wiva® Science was used for gait analysis, and Kineod 3D was used for posture analysis. The Shapiro-Wilk test used for analysis showed inconsistency with normal distribution for all measurement parameters. The Mann-Whitney U test was used for the analysis, and the significance level was set at p ≤ 0.05. RESULTS Examination of the relationship between stabilometric and gait parameters showed that the position of the mandible in relation to maxilla has an important effect on gait rhythm, gait cycle duration, and right step duration time. Patients diagnosed with malocclusion showed high-speed walking rhythm in comparison to patients with Angle's class I (p = 0.010). The duration of the whole gait cycle (p = 0.007) and the duration of right step (p = 0.027) were prolonged in students without orthodontic disorders compared to the other. CONCLUSIONS The conducted study proved that there is correlation between the presence of a stomatognathic disorder and gait cycle parameters. There is a statistically noticeable correspondence between the position of the mandible in relation to maxilla and walking rhythm, gait cycle duration, and right step duration time. Namely, students who presented malocclusion had a high-speed walking rhythm and decreased duration of the gait cycle and of the right step. On the other hand, students without disorders (Angle's class I) showed low-speed rhythm and increased duration of the gait cycle and of the right step in comparison to Angle's classes II and III.
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Affiliation(s)
- Dorota Różańska-Perlińska
- Faculty of Health Sciences, Academy of Applied Medical and Social Sciences in Elbląg, 82-300 Elbląg, Poland
| | - Jarosław Jaszczur-Nowicki
- Department Physiotherapy, School of Public Health, Collegium Medicum, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Dariusz Kruczkowski
- Faculty of Health Sciences, Academy of Applied Medical and Social Sciences in Elbląg, 82-300 Elbląg, Poland
| | - Joanna Magdalena Bukowska
- Department Physiotherapy, School of Public Health, Collegium Medicum, University of Warmia and Mazury, 10-719 Olsztyn, Poland
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Yamada Y, Hirabayashi R, Okada Y, Yokota H, Sekine C, Edama M. Effects of remote facilitation on ankle joint movement: Focusing on occlusal strength and balance. Health Sci Rep 2023; 6:e1098. [PMID: 36778778 PMCID: PMC9898801 DOI: 10.1002/hsr2.1098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 02/05/2023] Open
Abstract
Background Remote facilitation refers to teeth occlusion-activated spinal cord activity resulting in increased trunk and limb muscle strength. Facilitation depends on dentition-related pressure during occlusion and masticatory muscle contraction strength. Aims This study aimed to clarify the neurophysiological phenomenon and mechanisms by which occlusal strength and balance affect leg muscle activity and smooth joint movement execution. Materials & Methods To examine occlusal strength, three conditions were set: no contact between teeth and Moderate- and Maximum-strength occlusion (No-bite, Moderate, and Max conditions, respectively). To assess occlusal balance, we measured occlusal forces and calculated the left-right force ratio. We designated the sides with higher and lower occlusal pressure as hypertonic and hypotonic, respectively. We assessed ankle dorsiflexion movements with joint movement and isometric tasks. Results The rate of joint development and peak ankle dorsiflexion torque were significantly higher under occlusion (moderate and max compared to No-bite conditions), and the joint movement performance time was significantly shorter under Moderate compared to No-bite conditions. The joint movement execution time change rate from No-bite to Moderate condition was significantly lower on the Hypertonic side. Joint movement function was most improved under Moderate conditions. Discussion While remote facilitation improves with higher occlusal strength, leading to increased muscle strength, there is optimal occlusion intensity in joint movement. Moreover, an occlusal balance-dependent imbalance exists in remote facilitation between the Hyper- and Hypotonic sides. Conclusion Thus, low-intensity occlusion is optimal for smooth joint movement, and unbalanced occlusion results in asymmetrical motor function facilitation.
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Affiliation(s)
- Yuki Yamada
- Institute for Human Movement and Medical SciencesNiigata University of Health and WelfareNiigataJapan
| | - Ryo Hirabayashi
- Institute for Human Movement and Medical SciencesNiigata University of Health and WelfareNiigataJapan
| | - Yoshiyuki Okada
- Department of Special Care DentistryHiroshima UniversityHiroshimaJapan
| | - Hirotake Yokota
- Institute for Human Movement and Medical SciencesNiigata University of Health and WelfareNiigataJapan
| | - Chie Sekine
- Institute for Human Movement and Medical SciencesNiigata University of Health and WelfareNiigataJapan
| | - Mutsuaki Edama
- Institute for Human Movement and Medical SciencesNiigata University of Health and WelfareNiigataJapan
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12
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Nowak M, Golec J, Wieczorek A, Golec P. Is There a Correlation between Dental Occlusion, Postural Stability and Selected Gait Parameters in Adults? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1652. [PMID: 36674407 PMCID: PMC9862361 DOI: 10.3390/ijerph20021652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
Background: There is still an ongoing debate about the role of the craniomandibular system, including occlusal conditions, on postural stability. This study aims to assess the role of antero-posterior malocclusion on postural control and plantar pressure distribution during standing and walking. Methods: 90 healthy volunteers (aged 19 to 35) were qualified for the study. The subjects were assigned to three groups, depending on the occlusion type. Each group (Angle Class I, II and III) consisted of 30 people. The research procedure included a clinical occlusal assessment performed by a dentist. Postural control measurements were carried out using a force platform by measuring plantar pressure distribution during standing (six trials with and without visual control) and walking test conditions. Results: The tendency to shift the CoP forward is demonstrated by Angle Class II subjects and backwards by Class I and III subjects (p < 0.001). Individuals with a malocclusion demonstrated significantly higher selected stabilographic parameters while standing on both feet (with eyes open and closed) and during the single-leg test with eyes open (p < 0.05). The analysis of the dynamic test results showed no significant correlations between Angle Classes and the selected gait parameters. Conclusions: Analyses conducted among individuals with malocclusions showed the impact of occlusion on static postural stability. In order to diagnose and effectively treat malocclusion, a multidisciplinary approach with the participation of dentists and physiotherapy specialists is necessary, with the use of stabilometric and kinematic posture assessments.
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Affiliation(s)
- Monika Nowak
- Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski Krakow University, 30-705 Kraków, Poland
| | - Joanna Golec
- Institute of Clinical Rehabilitation, University School of Physical Education in Krakow, 31-571 Kraków, Poland
| | - Aneta Wieczorek
- Department of Prosthodontics and Orthodontics, Faculty of Medicine, Jagiellonian University Medical College, 31-007 Kraków, Poland
| | - Piotr Golec
- Individual Medical Practice, 30-390 Kraków, Poland
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13
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Herzog J, Göttfert F, Maurer-Grubinger C, Holzgreve F, Oremek G, Groneberg DA, Ohlendorf D. Improvement of cervical spine mobility and stance stability by wearing a custom-made mandibular splint in male recreational athletes. PLoS One 2022; 17:e0278063. [PMID: 36520807 PMCID: PMC9754227 DOI: 10.1371/journal.pone.0278063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/09/2022] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVES The range of motion (ROM) of the cervical spine and postural stability are important for an economical and motorically adequate adaptation of the body to any situation. Therefore, this study aims to analyze whether these two components of postural and movement control can be influenced by means of a splint in a centric position compared to habitual occlusion. METHODS 38 recreational male athletes volunteered. Cervical spine ROM was recorded using an ultrasound system and the a pressure measuring plate for postural stability (length of center of pressure (CoP) movement, area of CoP). The two dental occlusion conditions employed were the habitual occlusion and wearing a splint in an idealized, condylar position close to the centric position. Level of significance was set at ρ ≤ 0.05. RESULTS The cervical spine mobility increased significantly by wearing the splint regarding rotation to the left (+3.9%) and right (+2.7%) and lateral flexion to the left (+4.4%) and right (+6.7%). Wearing the splint reduced the area of sway deflections by about 31.5% in the bipedal stance and by about 2.4% (left) and 28.2% (right) in the unipedal stance. The CoP trace was reduced in the sagittal plane by approximately 8.2% in the right single-leg stance. CONCLUSIONS The major findings seem to demonstrate that wearing a splint that keeps the jaw close to the centric relation may increase the cervical ROM and may improve balance stability in male recreational athletes. Changing the jaw relation in athletes can possibly aid the release of performance potentials by improving coordination skills.
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Affiliation(s)
| | | | - Christian Maurer-Grubinger
- Institute for Occupational Medicine, Social Medicine and Environment Medicine, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Fabian Holzgreve
- Institute for Occupational Medicine, Social Medicine and Environment Medicine, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Gerhard Oremek
- Institute for Occupational Medicine, Social Medicine and Environment Medicine, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - David A. Groneberg
- Institute for Occupational Medicine, Social Medicine and Environment Medicine, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Daniela Ohlendorf
- Institute for Occupational Medicine, Social Medicine and Environment Medicine, Goethe-University Frankfurt, Frankfurt am Main, Germany
- * E-mail:
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14
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Goldstein GR. Centric relation: A needed reference position. J Prosthodont 2022. [PMID: 36074517 DOI: 10.1111/jopr.13603] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/31/2022] [Indexed: 11/26/2022] Open
Abstract
PURPOSE Centric Relation (CR) is a universally recognized term and an acceptable reference position with a long history of success. The problem is that there is little consensus as to its definition or the method of recording it, and this has created an uprising to abolish it. METHODS A review of pertinent literature related to its definition, method of recording, anatomic considerations and long-standing principles was conducted. RESULTS CR is an established term but there are valid concerns over its definition and method of recording. There is consensus on using it as a restorative position in a patient in need of full arch reconstruction and there is no substantive clinical research to contradict this. If a clinician decides to use a different position, it should have a different name. CONCLUSIONS CR is a reproducible reference position that can be utilized for diagnostic and restorative dental procedures with substantial scientific evidence to support that premise. There are numerous well documented techniques, all of which are intermaxillary, that can replicate the position. There is little scientific evidence to support a premise as to where the exact position of the condyle should be in relation to the fossa. This article is protected by copyright. All rights reserved.
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15
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Experimental Analysis of the Use of Cranial Electromyography in Athletes and Clinical Implications. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19137975. [PMID: 35805630 PMCID: PMC9266171 DOI: 10.3390/ijerph19137975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 06/23/2022] [Accepted: 06/26/2022] [Indexed: 02/04/2023]
Abstract
Background: Cranial surface electromyography is assumed to analyze the correlation between the stomatognathic apparatus and the muscular system and its implications on the physical status of professional athletes. The purpose of this paper is to evaluate surface cranial electromyography as an aid in the diagnosis and treatment of occlusal and muscular disorders in professional athletes. Methods: A sample of 25 athletes (mean age 23 years, 20 men and 5 women) underwent electromyographic recording; among them, 13 had a sports injury condition (symptomatic athletes), while 12 were in perfect physical condition (asymptomatic athletes). At odontostomatological examination, 6 showed cranio-mandibular disorders (dysfunctional athletes), while 19 showed no disorders (functional athletes). The treatment plan to resolve the symptoms of the dysfunctional athletes was chosen based on the electromyographic data. One month after the start of therapy with an occlusal splint, a follow-up was performed, and the results were compared with the initial data. Results: Statistical analysis showed that the chosen therapy following the use of electromyography was effective in 72% of cases, while 28% of patients did not respond to therapy (p = 0.028). Conclusions: The use of cranial electromyography in competitive athletes is a valuable tool in therapeutic choice aimed at balancing occlusal loads and improving the patient’s global tonic postural attitude, resulting in positive feedback in the qualitative assessment of sports performance.
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16
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Effects of 8-week oral splint usage on body flexibility and muscle strength-endurance performance in Pilates practitioners. SPORT SCIENCES FOR HEALTH 2022. [DOI: 10.1007/s11332-022-00942-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Abstract
Purpose
We investigated the acute and chronic effects of oral splint on muscle strength-endurance performance and body flexibility.
Methods
Twelve Pilates practitioners (age 49.5 ± 5.8 years; mass 58.6 ± 6.5 kg) were evaluated with (OS) and without (CTRL) oral splint. Before (PRE) and after (POST) 8 weeks of oral splint usage during Pilates activity, muscle strength-endurance and body flexibility were evaluated through a frontal plank exercise and a Toe-touch test in OS and CTRL. Before each test, the highest electrical activation (EMG) of masseter and temporal muscles during maximal occlusion was determined. During frontal plank, the time-to-exhaustion, the maximum voluntary activation of masticatory muscles and the time of muscles activation have been determined.
Results
No OS vs CTRL and PRE vs POST differences were found in the maximum voluntary activation of temporal and masseter muscles. The time-to-exhaustion in OS was longer than CTRL in both PRE (P = 0.049) and POST sessions (P = 0.043). Time of masticatory muscles activation during plank was moderately greater in OS at PRE (P = 0.020) and POST (P = 0.022), while no difference between PRE and POST emerged in both conditions. Higher muscular activation was found in OS than CTRL at PRE (P = 0.031) and POST (P = 0.031), whereas no difference between PRE and POST appeared. No effect on flexibility emerged neither acutely nor chronically.
Conclusion
Acute and chronic oral splint usage improved strength-endurance performance but not body flexibility. These findings suggest biomechanical and neural mechanisms influencing the muscle length and the concurrent activation potentiation, but not muscle tone and stiffness.
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17
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Fadillioglu C, Kanus L, Möhler F, Ringhof S, Hellmann D, Stein T. Influence of Controlled Stomatognathic Motor Activity on Sway, Control and Stability of the Center of Mass During Dynamic Steady-State Balance—An Uncontrolled Manifold Analysis. Front Hum Neurosci 2022; 16:868828. [PMID: 35399352 PMCID: PMC8989727 DOI: 10.3389/fnhum.2022.868828] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/02/2022] [Indexed: 11/13/2022] Open
Abstract
Multiple sensory signals from visual, somatosensory and vestibular systems are used for human postural control. To maintain postural stability, the central nervous system keeps the center of mass (CoM) within the base of support. The influence of the stomatognathic motor system on postural control has been established under static conditions, but it has not yet been investigated during dynamic steady-state balance. The purpose of the study was to investigate the effects of controlled stomatognathic motor activity on the control and stability of the CoM during dynamic steady-state balance. A total of 48 physically active and healthy adults were assigned to three groups with different stomatognathic motor conditions: jaw clenching, tongue pressing and habitual stomatognathic behavior. Dynamic steady-state balance was assessed using an oscillating platform and the kinematic data were collected with a 3D motion capturing system. The path length (PL) of the 3D CoM trajectory was used for quantifying CoM sway. Temporal dynamics of the CoM movement was assessed with a detrended fluctuation analysis (DFA). An uncontrolled manifold (UCM) analysis was applied to assess the stability and control of the CoM with a subject-specific anthropometric 3D model. The statistical analysis revealed that the groups did not differ significantly in PL, DFA scaling exponents or UCM parameters. The results indicated that deliberate jaw clenching or tongue pressing did not seem to affect the sway, control or stability of the CoM on an oscillating platform significantly. Because of the task-specificity of balance, further research investigating the effects of stomatognathic motor activities on dynamic steady-state balance with different movement tasks are needed. Additionally, further analysis by use of muscle synergies or co-contractions may reveal effects on the level of muscles, which were not visible on the level of kinematics. This study can contribute to the understanding of postural control mechanisms, particularly in relation to stomatognathic motor activities and under dynamic conditions.
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Affiliation(s)
- Cagla Fadillioglu
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
- *Correspondence: Cagla Fadillioglu
| | - Lisa Kanus
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
| | - Felix Möhler
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Steffen Ringhof
- Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany
| | - Daniel Hellmann
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
- Dental Academy for Continuing Professional Development, Karlsruhe, Germany
| | - Thorsten Stein
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
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18
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Rehabilitation of Worn Dentition with Direct Resin Composite Restorations: A Case Report. Dent J (Basel) 2022; 10:dj10040051. [PMID: 35448045 PMCID: PMC9032751 DOI: 10.3390/dj10040051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 11/17/2022] Open
Abstract
The incidence of tooth wear has steadily increased in all Western populations during the past decades. A through-care strategy, extendable for a lifetime, has become crucial to prevent the extensive loss of sound dental structure and to make an eventual retreatment affordable in the long term. An interceptive treatment using resin composite materials and no-preparation approaches meets these requirements. Moreover, continual developments in digital dentistry makes possible to predict the treatment plan for the restorative rehabilitation of the mouth. The availability of digital resources allows clinicians to increase predictability for excellent esthetics and good functional results. This article provides a step-by-step description of a full-mouth additive rehabilitation achieved by employing digital workflows and direct resin composite restorations. A comprehensive functional and esthetic evaluation of the treatment is proposed and discussed.
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19
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Rossato M, Nart A, Messina G, Favro F, Rossato V, Rrutja E, Biancalana V. The Refraction Assessment and the Electronic Trial Frame Measurement during Standing or Sitting Position Can Affect Postural Stability. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19031558. [PMID: 35162580 PMCID: PMC8835107 DOI: 10.3390/ijerph19031558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 11/29/2022]
Abstract
Vision has been shown to influence body posture. The purpose of this study is to investigate the correlations between visual acuity and body postural control both in a standing and seated position. This cohort study included 37 patients examined using Adaptica’s (Italy) Kaleidos and VisionFit. Objective refraction was measured with Kaleidos both in a standing and seated position by the same operator and in the same environmental conditions. The parameters obtained with the device were binocular refraction, monocular refraction, pupil distance, pupil size, head tilt, gaze, phorias, and tropias. The results obtained were then subjectively tested using VisionFit: an electronic trial frame with phoropter functionalities. The study’s outcome revealed that the differences in the visual acuity parameters obtained in standing and seated positions were statistically significant; the Student’s t-test showed a p-value < 0.001 in all parameter averages. Automated refraction is widely being performed and postural control can affect the visual acuity parameters; therefore, it is relevant to consider the possibility of measuring in orthostatism. It might be appropriate to take into account the possibility of measuring in orthostatism and wearing trial frames in orthostatic conditions as well as walking freely around the room, looking outside of a window, sitting, and reading.
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Affiliation(s)
- Massimo Rossato
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy; (A.N.); (V.B.)
- Postural Equipe Academy, 30033 Venice, Italy
- Correspondence:
| | - Alessandra Nart
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy; (A.N.); (V.B.)
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Giuseppe Messina
- Sport and Exercise Sciences Research Unit, Department of Psychological, Pedagogical and Educational Sciences, University of Palermo, 90128 Palermo, Italy;
| | - Francesco Favro
- Department of Biomedical Sciences, School of Human Movement Science, University of Padova, 35128 Padova, Italy;
| | - Valentina Rossato
- Department of Medicine, School of Medicine, University of Padova, 35128 Padova, Italy;
| | - Enxhi Rrutja
- School of Science, Optics and Optometry, University of Florence, 50121 Firenze, Italy;
| | - Vincenzo Biancalana
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy; (A.N.); (V.B.)
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20
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Physiotherapeutic methods of treatment of mandibular distal occlusion and the progress of therapy: A case report. J Bodyw Mov Ther 2022; 29:26-32. [DOI: 10.1016/j.jbmt.2021.09.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 07/06/2021] [Accepted: 09/24/2021] [Indexed: 11/18/2022]
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21
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Queiroz RLDS, Castro RKD, Caponi LQ, Gosalvez MM, Calvo JCP, Drago S, Díaz CC, Fernandez MPR. ORAL HEALTH CONDITIONS AND SELF-REPORTED PRESENCE OF PAIN IN ROWERS: AN EPIDEMIOLOGY STUDY. REV BRAS MED ESPORTE 2021. [DOI: 10.1590/1517-8692202127062021_0131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Introduction: Rowers are especially prone to oral health problems due to the massive consumption of supplements and isotonic drinks that lead eating disorders, due to the need for weight control, and to the development of teeth clenching caused by the constant activation of the chewing muscles during sports activity. Objective: To evaluate the oral health status of a group of Brazilian rowers and to identify the main risk factors influencing their oral health. Methods: One hundred and twenty rowers (84 men and 36 women) with an age of 24.16 ± 5.74 years participated in this study; an average height of 1.79 ± 0.09 cm and body mass of 75.02 ± 11.64 kg were detected by means of a questionnaire focused on the main factors that influence the deterioration in athletes’ oral health. Results: The dental results revealed a significant number of rowers with the oral breathing pattern (46.7%), malocclusion (65.8%), bruxism (33.3%) and noise and/or pain in the TMJ (temporomandibular joint) (20.8%). The use of supplements and isotonic drinks (48.3%) and the incidence of bleeding gums (30.83%) were also found. Conclusion: The results show the importance of making rowers aware of the relevance of oral health and the need for prevention systems, ideally including sports dentistry specialists within the sports medicine departments of rowing clubs. Level of evidence II; Retrospective study.
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22
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Fadillioglu C, Kanus L, Möhler F, Ringhof S, Schindler HJ, Stein T, Hellmann D. Influence of controlled masticatory muscle activity on dynamic reactive balance. J Oral Rehabil 2021; 49:327-336. [PMID: 34811784 DOI: 10.1111/joor.13284] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 09/27/2021] [Accepted: 11/06/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND The influence of the stomatognatic system on human posture control has been investigated under static conditions, but the effects on dynamic balance have not yet been considered. OBJECTIVE Investigating the influence of different functional stomatognatic activities (jaw clenching (JAW), tongue pressing (TON) and habitual jaw position (HAB)) on postural performance during a dynamic reactive balance task. METHODS Forty-eight physically active and healthy adults were assigned to three groups differing in oral-motor tasks (JAW, TON or HAB). Dynamic reactive balance was assessed by an oscillating platform which was externally perturbed in four directions. Performance was quantified by means of Lehr's damping ratio. Mean speeds of the selected anatomical regions (head, trunk, pelvis, knee and foot) were analysed to determine significant performance differences. RESULTS The groups differed significantly in balance performance in direction F (i.e., forwards acceleration of the platform). Post hoc tests revealed that the JAW group had significantly better performance compared with both the HAB and TON groups. Better performance was associated with a decreased mean speed of the analysed anatomical regions. CONCLUSION JAW can improve dynamic reactive balance but the occurrence of positive effects seems to be task-specific and not general. TON seems not to have any observable effects on dynamic reactive balance performance, at least when evaluating it with an oscillating platform. JAW might be a valuable strategy which could possibly reduce the risk of falls in elderly people; however, further investigations are still needed.
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Affiliation(s)
- Cagla Fadillioglu
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Lisa Kanus
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
| | - Felix Möhler
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Steffen Ringhof
- Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany
| | - Hans J Schindler
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany.,Research Group Biomechanics, Institute for Mechanics, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Thorsten Stein
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Daniel Hellmann
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany.,Dental Academy for Continuing Professional Development, Karlsruhe, Germany
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Duanmu Z, Liu L, Deng Q, Ren Y, Wang M. Development of a biomechanical model for dynamic occlusal stress analysis. Int J Oral Sci 2021; 13:29. [PMID: 34493701 PMCID: PMC8423745 DOI: 10.1038/s41368-021-00133-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 07/06/2021] [Indexed: 02/08/2023] Open
Abstract
The use of traditional finite element method (FEM) in occlusal stress analysis is limited due to the complexity of musculature simulation. The present purpose was to develop a displacement boundary condition (DBC)-FEM, which evaded the muscle factor, to predict the dynamic occlusal stress. The geometry of the DBC-FEM was developed based on the scanned plastic casts obtained from a volunteer. The electrognathographic and video recorded jaw positional messages were adopted to analyze the dynamic occlusal stress. The volunteer exhibited asymmetrical lateral movements, so that the occlusal stress was further analyzed by using the parameters obtained from the right-side eccentric movement, which was 6.9 mm long, in the stress task of the left-side eccentric movement, which was 4.1 mm long. Further, virtual occlusion modification was performed by using the carving tool software aiming to improve the occlusal morphology at the loading sites. T-Scan Occlusal System was used as a control of the in vivo detection for the location and strength of the occlusal contacts. Data obtained from the calculation using the present developed DBC-FEM indicated that the stress distribution on the dental surface changed dynamically with the occlusal contacts. Consistent with the T-Scan recordings, the right-side molars always showed contacts and higher levels of stress. Replacing the left-side eccentric movement trace by the right-side one enhanced the simulated stress on the right-side molars while modification of the right-side molars reduced the simulated stress. The present DBC-FEM offers a creative approach for pragmatic occlusion stress prediction.
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Affiliation(s)
- Zheng Duanmu
- grid.443248.d0000 0004 0467 2584Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing, China
| | - Lu Liu
- grid.233520.50000 0004 1761 4404Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Air Force Medical University, Xi’an, China
| | - Qi Deng
- grid.233520.50000 0004 1761 4404Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Air Force Medical University, Xi’an, China
| | - Yuanyuan Ren
- grid.233520.50000 0004 1761 4404Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Air Force Medical University, Xi’an, China
| | - Meiqing Wang
- grid.233520.50000 0004 1761 4404Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Air Force Medical University, Xi’an, China
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24
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The Significance of Posterior Occlusal Support of Teeth and Removable Prostheses in Oral Functions and Standing Motion. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18136776. [PMID: 34202488 PMCID: PMC8297000 DOI: 10.3390/ijerph18136776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/16/2021] [Accepted: 06/21/2021] [Indexed: 01/19/2023]
Abstract
The purpose of this study was to evaluate the effect of posterior occlusal support of natural teeth and artificial teeth on oral functions and standing motion. Patients who had been treated with removable prostheses were enrolled as the subjects. Their systemic conditions (body mass index (BMI) and skeletal muscle mass index (SMI)) were recorded. The subjects were classified into two groups according to a modified Eichner index: B1-3 (with posterior occlusal support) and B4C (without posterior occlusal support). Maximum occlusal force (MOF), masticatory performance (MP), and standing motion (sway and strength) were evaluated for cases with and without removable prostheses. There were no significant differences in BMI and SMI between the B1-3 group and the B4C group. The subjects with removable prostheses demonstrated significantly higher values in MOF, MP, and sway and strength than the subjects without removable prostheses. The comparison of oral functions between the B1-3 group and the B4C group revealed that the positive effect of posterior occlusal support of natural teeth and removable prostheses and the significant positive effects of posterior occlusal support on standing motion were partly observed in these comparisons. Posterior occlusal support of natural teeth and even of removable prostheses may contribute to the enhancement of oral functions and standing motion.
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Shih YH, Hong ZR, Hsia SM, Yang SY, Shieh TM. A High Masticatory Muscle Tone Predicts the Risk of Malnutrition and Frailty in Inpatient Older Adults: A Cross-Sectional Study. Gerontology 2021; 68:295-301. [PMID: 34139690 DOI: 10.1159/000516627] [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: 12/23/2020] [Accepted: 04/07/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION The prevalence of malnutrition among inpatient older adults is as high as 20∼50%. Masticatory performance is known to affect the nutritional status of individuals. However, an objective measurement to reflect the real status of masticatory muscle performance is lacking at the bedside. METHODS This pilot study analyzed the masticatory performance using surface electromyography (sEMG) of masticatory muscles that measures both muscle strength and muscle tone at the bedside. The nutritional status was measured using the Mini Nutritional Assessment tool. The handgrip strength was measured using a hand dynamometer. The statistical data were analyzed using SPSS 25 software. RESULTS The data revealed that female inpatient older adults more frequently had substandard handgrip strength (p = 0.028), an at-risk and poor nutritional status (p = 0.005), and a higher masseter muscle tone (p = 0.024). Inpatient older adults with an at-risk and poor nutritional status had an older age (p = 0.016), lower handgrip strength (p = 0.001), and higher average masseter muscle tone (p = 0.01). A high masseter muscle tone predicted the risk of having an at-risk and poor nutritional status. The at-risk or poor nutritional status predicted having a substandard handgrip strength by 5-fold. CONCLUSIONS A high masticatory muscle tone predicts malnutrition and frailty. Medical professionals should combat masticatory dysfunction-induced malnutrition by detecting masticatory muscle performance using sEMG and referring patients to dental professionals. Additionally, encouraging inpatient older adults to perform oral motor exercise is recommended.
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Affiliation(s)
- Yin-Hwa Shih
- Department of Healthcare Administration, Asia University, Taichung, Taiwan
| | - Zhen-Rong Hong
- Division of Clinical Nutrition, Asia University Hospital, Taichung, Taiwan
| | - Shih-Min Hsia
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Shang-Yu Yang
- Department of Healthcare Administration, Asia University, Taichung, Taiwan
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Colomar J, Corbi F, Baiget E. Alterations in mechanical muscle characteristics and postural control induced by tennis match-play in young players. PeerJ 2021; 9:e11445. [PMID: 34026370 PMCID: PMC8121060 DOI: 10.7717/peerj.11445] [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: 01/05/2021] [Accepted: 04/21/2021] [Indexed: 11/20/2022] Open
Abstract
Background Central and peripheric fatigue indicators are among the main reasons for performance decline following competition. Because of the impact of these factors on performance, how these variables are affected by match-play could be of interest, especially in young tennis players. Objective This study aimed to investigate alterations induced by a simulated tennis match on postural control and muscle characteristics in young tennis players. Method Seventeen male junior players took part in pre- and post-competition testing sessions performing postural control (displacement, speed and surface area of center of pressures) and muscle characteristics measurements (tone, stiffness, time to relaxation and elasticity). Between trials, participants played an 80-min simulated tennis match. Results No significant differences were observed in any of the tested variables. Moderate-to-large effect sizes (ES) for decreased stiffness and tone and greater time to relaxation were found between pre- and post-conditions in the right rectus abdominis (−9.8%, −4.4% and 7.8%; ES = 0.8, 0.54 and −0.85). Also, a decrease in tone was found in the right vastus medialis (−7.1%; ES = 0.56), while surface area of the center of pressures with eyes open showed trends towards increasing in post-match measurements (55.9%; ES = 0.56). Conclusion An 80-min simulated tennis match seems insufficient to elicit significant changes in postural control and mechanical muscle characteristics. Results suggest that physiological responses triggered by match-play were closer to those seen after a moderate activity than those present following a strenuous task.
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Affiliation(s)
- Joshua Colomar
- Institut Nacional d'Educació Física de Catalunya - INEFC Barcelona, Barcelona, Spain.,Academia Sánchez-Casal, Barcelona, Spain
| | - Francisco Corbi
- Institut Nacional d'Educació Física de Catalunya - INEFC Lleida, Lleida, Spain
| | - Ernest Baiget
- Sports Performance Analysis Research Group (SPARG), Universitat de Vic - Universitat Central de Catalunya, Vic, Spain
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Shi M, Liu X, Zhang C, Zhang H, Liu Q, Wang D, Liu X, Li J, Wang M. Effect of dental malocclusion on cerebellar neuron activation via the dorsomedial part of the principal sensory trigeminal nucleus. Eur J Oral Sci 2021; 129:e12788. [PMID: 33945647 PMCID: PMC8453929 DOI: 10.1111/eos.12788] [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: 10/01/2020] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 11/30/2022]
Abstract
Occlusion has been proposed to play a role for body posture and balance, both of which are mediated mainly by the cerebellum. The dorsomedial part of the principal sensory trigeminal nucleus (Vpdm) has direct projection to the cerebellum. The experimental unilateral anterior crossbite (UAC) has an impact on the motor nuclei in the brain stem via trigeminal mesencephalic nucleus (Vme). The current aim was to explore whether UAC has an impact on Vpdm‐cerebellum circuit. The inferior alveolar nerve was injected into cholera toxin B subunit (CTb), the cerebellum was injected into fluoro‐gold (FG), and the Vpdm was injected into biotinylated dextran amine (BDA) to identify the activation of Vpdm‐cerebellum circuit by UAC. Data indicated that there were more neuronal nuclei (NeuN)/CTb/FG triple‐labelled neurons and NeuN/CTb/vesicular glutamate transporter 1(VGLUT1) triple‐labelled neurons in the Vpdm, and more NeuN/BDA/ VGLUT1 triple‐labelled neurons in the cerebellum of rats with UAC than in control rats. The VGLUT1 expression in the Vpdm and cerebellum in the UAC group was higher than that in control rats. These findings indicate an excitatory impact of UAC on the Vpdm‐cerebellum pathway and support the role of occlusion for body posture and balance.
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Affiliation(s)
- Minghong Shi
- School of Stomatology, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, China.,Department of Oral Anatomy and Physiology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Xin Liu
- Department of Oral Anatomy and Physiology, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Department of Stomatology, The 960th Hospital of People's Liberation Army, Jinan, China
| | - Chunkui Zhang
- Department of Anatomy, Histology and Embryology and K.K. Leung Brain Research Centre, The Fourth Military Medical University, Xi'an, China
| | - Hongyun Zhang
- Department of Oral Anatomy and Physiology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Qian Liu
- Department of Oral Anatomy and Physiology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Dongmei Wang
- School of Stomatology, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Xiaodong Liu
- Department of Oral Anatomy and Physiology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Jinlian Li
- Department of Anatomy, Histology and Embryology and K.K. Leung Brain Research Centre, The Fourth Military Medical University, Xi'an, China
| | - Meiqing Wang
- School of Stomatology, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, China.,Department of Oral Anatomy and Physiology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
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Parrini S, Rossini G, Nebiolo B, Airale M, Franceschi A, Cugliari G, Deregibus A, Castroflorio T. Variations in athletic performance with occlusal splint in track and field athletes: a randomized clinical trial. J Sports Med Phys Fitness 2021; 62:375-381. [PMID: 33871235 DOI: 10.23736/s0022-4707.21.12081-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Several studies have been proposed with the aim to demonstrate correlations between the dento-mandibular apparatus and the skeletal muscle system of the human body even in regions distant from the oral cavity. However, a definite conclusion cannot be drawn. The aim of this paper is to demonstrate a possible correlation between dental occlusion and sport performances in track and field athletes. METHODS 16 track and field athletes were enrolled for the study and were randomly divided in three groups: Untreated control group, Placebo group (with a lower plaque without occlusal coverage) and Treated group (with occlusal splint). Changes in sprint and jump performance were assessed on a weekly basis for 5 consecutive weeks, during which athletes had to wear oral devices, except for the first week of baseline, for at least 3 trainings lasting 2 hours per week. All participants performed the countermovement jump (CMJ), the drop jump (DJ), the 10m and 30m sprint tests, always on the same day on the week. RESULTS No statistically significant difference resulted between Control group and Placebo group and between Control group and Treated group. However it was possible to observe a clinical improvement of measurements obtained, especially for CMJ, 10m and 30m sprint tests. No variation neither statistical neither clinical was observed in DJ test analysis. CONCLUSIONS Even if statistically it was not possible to demonstrate an improvement in sport performance, most of the athlete analyzed showed better results during training session with occlusal splint compared to athlete without occlusal splint, in countermovement jump, in 10m and 30m sprint tests.
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Affiliation(s)
- Simone Parrini
- Department of Surgical Sciences, CIR Dental School, University of Turin, Turin, Italy -
| | - Gabriele Rossini
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, University of Turin, Turin, Italy
| | - Bianca Nebiolo
- Department of Surgical Sciences, CIR Dental School, University of Turin, Turin, Italy
| | - Marco Airale
- Eracle Academy, Metropolitan City of Turin, Turin, Italy
| | - Alberto Franceschi
- Eracle Academy, Metropolitan City of Turin, Turin, Italy.,Research Center in Sports Sciences, Health and Human Development, CIDESD, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | | | - Andrea Deregibus
- Department of Surgical Sciences, CIR Dental School, University of Turin, Turin, Italy
| | - Tommaso Castroflorio
- Department of Surgical Sciences, CIR Dental School, University of Turin, Turin, Italy
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Maurer-Grubinger C, Adjami F, Avaniadi I, Christian W, Doerry C, Fay V, Fisch V, Gerez A, Goecke J, Kaya U, Keller J, Krüger D, Pflaum J, Porsch L, Wischnewski C, Scharnweber B, Sosnov P, Oremek G, Groneberg DA, Ohlendorf D. Symmetrical dental occlusion blocking - changes of body sway and weight distribution in healthy subjects across 4 age decades. J Occup Med Toxicol 2021; 16:7. [PMID: 33639978 PMCID: PMC7912460 DOI: 10.1186/s12995-021-00296-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 02/16/2021] [Indexed: 12/19/2022] Open
Abstract
Objectives Symmetrical dental occlusion blocking is used in dentistry as a quick diagnostic tool to test for potential influences of the craniomandibular system on body sway and weight distribution. This study presents the changes of body sway and pressure distribution in healthy subjects, free of a temporomandibular dysfunction (TMD). Immediate effects between occlusal blocking and rest position on body sway and body weight distribution in general, as well as for both genders and for four age decades will be evaluated. Materials and methods 725 (396f/329 m) subjects (neither subjective signs of TMD nor acute/chronic complaints in the musculoskeletal system) volunteered (21 to 60 years) while both genders were divided into four age groups according to decades. A pressure measuring platform was used. Body sway and weight distribution were recorded in two dental occlusion conditions (a) in rest position and (b) symmetrical blocking (bicuspid region) by cotton rolls. Results Both, the frontal sway and the sagittal sway reduced by 0.67 mm (t(724) = − 3.9 (p < 0.001)) and by 0.33 mm (t(724) = − 3.4 (p < 0.001)). The relative pressure under the left forefoot increased by 0.33% (t(724) = 2.88 (p < 0.001)) and the relative pressure overall under the forefoot increased by 0.67% (t(724) = − 3.4 (p < 0.001)). Gender-specific, age-specific and BMI-specific reactions could not be identified. Conclusions Subjects, free of any TMD and with no complaints of the musculoskeletal system, show small changes of the body sway and weight distribution when biting symmetrically on a cotton roll. These changes are independent of age, gender or body mass index (BMI). Due to the relative large sample size, the presented results can also be seen as norm values when body sway is used as an additional assessment of a TMD.
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Affiliation(s)
- C Maurer-Grubinger
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - F Adjami
- Department of Orthodontics, School of Dentistry "Carolinum", Goethe-University Frankfurt am Main, Theodor-Stern-Kai 7, Building 29, 60590, Frankfurt/Main, Germany
| | - I Avaniadi
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - W Christian
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - C Doerry
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - V Fay
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - V Fisch
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - A Gerez
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - J Goecke
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - U Kaya
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - J Keller
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - D Krüger
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany.,Department of Orthodontics, School of Dentistry "Carolinum", Goethe-University Frankfurt am Main, Theodor-Stern-Kai 7, Building 29, 60590, Frankfurt/Main, Germany
| | - J Pflaum
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - L Porsch
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - C Wischnewski
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - B Scharnweber
- Department of Orthodontics, School of Dentistry "Carolinum", Goethe-University Frankfurt am Main, Theodor-Stern-Kai 7, Building 29, 60590, Frankfurt/Main, Germany
| | - P Sosnov
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - G Oremek
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - D A Groneberg
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany
| | - D Ohlendorf
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt/Main, Germany.
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Cabrera-Domínguez ME, Domínguez-Reyes A, Pabón-Carrasco M, Pérez-Belloso AJ, Coheña-Jiménez M, Galán-González AF. Dental Malocclusion and Its Relation to the Podal System. Front Pediatr 2021; 9:654229. [PMID: 34239846 PMCID: PMC8257946 DOI: 10.3389/fped.2021.654229] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/17/2021] [Indexed: 11/13/2022] Open
Abstract
Background and Objective: This study analyzes the possibility that Stomatognathic and Postural systems are related by muscle chains. Malocclusion may influence the posture, contact between the foot and the ground, center of mass, footprint or vice-versa. This study aimed to verify whether there is a relationship between dental occlusion and podal system. Materials and Methods: A cross-cutting, descriptive study was carried out on 409 children (222 boys and 187 girls) between 8 and 14 years old. Dental occlusion was assessed on the sagittal plane (Angle's classification) the contact between the foot and the ground and the center of mass were evaluated using a stabilometric platform. Results: There was a statistically significant relationship between the plantigrade phase, the contact surface area and center of gravity. There was a prevalence of molar and canine Angle's class II malocclusion. In molar class II, an anterior center of gravity was predominant, in class I it was centered and in class III, it was posterior. There was significant correlation between malocclusions and the FPI (foot posture index) of the left foot and the height of the scaphoid in the right foot (P < 0.001). Conclusions: Some authors agree with our results. There is still much uncertainty in terms of showing a relationship between both systems. In addition, there is scarce scientific evidence on the topic. Some kind of relationship between the two systems has been proven. Studies that evaluate a group of subjects in a longitudinal manner are necessary to enable the changes taking place in both systems to be defined.
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Affiliation(s)
| | | | | | - Ana J Pérez-Belloso
- Department of Podiatry, Faculty of Nursing, Physiotherapy and Podiatry, University of Seville, Seville, Spain
| | - Manuel Coheña-Jiménez
- Department of Podiatry, Faculty of Nursing, Physiotherapy and Podiatry, University of Seville, Seville, Spain
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González-Aragón Pineda ÁE, García Pérez A, Rosales-Ibáñez R, Stein-Gemora E. Relationship between the Normative Need for Orthodontic Treatment and Oral Health in Mexican Adolescents Aged 13-15 Years Old. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17218107. [PMID: 33153121 PMCID: PMC7663477 DOI: 10.3390/ijerph17218107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/28/2020] [Accepted: 10/28/2020] [Indexed: 11/16/2022]
Abstract
This cross-sectional study aimed to establish a relationship between the Normative Need for Orthodontic Treatment (NNOT) and oral health among Mexican adolescents aged 13–15 years old. A convenience sample of 424 subjects in Mexico City participated in the study. The dependent variable used was NNOT, which was determined via the dental health component (grades 4 and 5) of the Index of Orthodontic Treatment Need (IOTN). The variables for oral health were as follows: caries experience, oral hygiene, self-reported temporomandibular joint pain, and self-reported bruxism. Logistic regression models were fitted to determine the association between NNOT and oral health. The prevalence of NNOT was 66.0% (280/424), and the crowding was the most prevalent occlusal anomaly with 36.1% (n = 135). Multivariate models showed that subjects with NNOT were more than twice as likely to present poor hygiene (OR = 2.56; p = 0.001) as subjects presenting crowding (>4 mm) (OR = 1.99; p = 0.004) and increased overjet (>6 mm) (OR = 1.74; p = 0.046). Those schoolchildren who presented anterior guidance were 72% less likely to present NNOT (OR = 0.28; p < 0.001). In conclusion, the risk of presenting NNOT in Mexican adolescents is high, with a prevalence of over 50% of which the most prevalent occlusal anomaly was crowding. On the other hand, poor oral hygiene was associated with crowding and increased overjet.
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