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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. [PMID: 38616519 DOI: 10.1111/joor.13700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [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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Werneburg I, Preuschoft H. Evolution of the temporal skull openings in land vertebrates: A hypothetical framework on the basis of biomechanics. Anat Rec (Hoboken) 2024; 307:1559-1593. [PMID: 38197580 DOI: 10.1002/ar.25371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 01/11/2024]
Abstract
The complex constructions of land vertebrate skulls have inspired a number of functional analyses. In the present study, we provide a basic view on skull biomechanics and offer a framework for more general observations using advanced modeling approaches in the future. We concentrate our discussion on the cranial openings in the temporal skull region and work out two major, feeding-related factors that largely influence the shape of the skull. We argue that (1) the place where the most forceful biting is conducted and (2) the handling of resisting food (sideward movements) constitute the formation and shaping of either one or two temporal arcades surrounding these openings. Diversity in temporal skull anatomy among amniotes can be explained by specific modulations of these factors with different amounts of acting forces which inevitably lead to deposition or reduction of bone material. For example, forceful anterior bite favors an infratemporal bar, whereas forceful posterior bite favors formation of an upper temporal arcade. Transverse forces (inertia and resistance of seized objects) as well as neck posture also influence the shaping of the temporal region. Considering their individual skull morphotypes, we finally provide hypotheses on the feeding adaptation in a variety of major tetrapod groups. We did not consider ligaments, internal bone structure, or cranial kinesis in our considerations. Involving those in quantitative tests of our hypotheses, such as finite element system synthesis, will provide a comprehensive picture on cranial mechanics and evolution in the future.
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Affiliation(s)
- Ingmar Werneburg
- Paläontologische Sammlung, Fachbereich Geowissenschaften, Eberhard Karls Universität, Tübingen, Germany
- Senckenberg Center for Human Evolution and Palaeoenvironment, Eberhard Karls Universität, Tübingen, Germany
| | - Holger Preuschoft
- Funktionelle Morphologie im Anatomischen Institut, Ruhr-Universität Bochum, Bochum, Germany
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Ben Achour A, Apfeld F, Lauer G, Bräuer C, Leonhardt H, Franke A, Lipphaus A, Teicher U, Witzel U, Schröder TA. Development of a test bench for biomechanical simulation-a preliminary study of mandibular forces. Front Bioeng Biotechnol 2024; 12:1335159. [PMID: 38468690 PMCID: PMC10925755 DOI: 10.3389/fbioe.2024.1335159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/07/2024] [Indexed: 03/13/2024] Open
Abstract
Purpose: The aim of this study is to develop a test bench, which integrates different complexity levels and enables in that way a flexible and dynamic testing for mid and long term intervals as well as testing of maximum loads till implant failure of different osteosynthesis systems on the mandible. Material and Methods: For this purpose, an analysis of the state of the art regarding existing test benches was combined with interviews of clinical experts to acquire a list of requirements. Based on these requirements a design for a modular test bench was developed. During the implementation of the test stand, functional tests were continuously carried out and improvements made. Depending on the level of complexity, the test bench can be used either as an incorporated variant or as a standalone solution. In order to verify the performance and the degree of fulfilment of the requirements of these two variants of the test bench, preliminary studies were carried out for all levels of complexity. In these preliminary studies, commercially available osteosynthesis and reconstruction plates were investigated for their biomechanical behaviour and compared with data from the literature. Results: In total, fourteen test runs were performed for the different levels of complexity. Firstly, five test runs were executed to test the simplified load scenario in the incorporated variant of the test bench. High forces could be transmitted without failure of the miniplates. Secondly a quasi-static test scenario was examined using the incorporated variant with simplified load insertion. Five experiments with a number of cycles between 40,896 and 100,000 cycles were carried out. In one case the quasi-static testing resulted in a fracture of the tested reconstruction plate with a failure mode similar to the clinical observations of failure. The last four test runs were carried out using the standalone variant of the test bench simulating complex load patterns via the insertion of forces through imitated muscles. During the test runs joint forces were measured and the amplitude and vector of the resulting joint forces were calculated for both temporomandibular joints. Differences in the force transmission depending on the implant system in comparison to the zero sample could be observed. Conclusion: The presented modular test bench showed to be applicable for examination of the biomechanical behavior of the mandible. It is characterized by the adjustability of the complexity regarding the load patterns and enables the subsequent integration of further sensor technologies. Follow-up studies are necessary to further qualify and optimize the test bench.
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Affiliation(s)
- Anas Ben Achour
- Fraunhofer Institute for Machine Tools and Forming Technology IWU, Dresden, Germany
| | - Florian Apfeld
- Fraunhofer Institute for Machine Tools and Forming Technology IWU, Dresden, Germany
- Biomechanics Research Group, Chair of Product Development, Faculty of Mechanical Engineering, Ruhr University Bochum, Bochum, Germany
| | - Günter Lauer
- Department of Oral and Maxillofacial Surgery, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Christian Bräuer
- Department of Oral and Maxillofacial Surgery, Facial Plastic Surgery, University of Rostock, Rostock, Germany
| | - Henry Leonhardt
- Department of Oral and Maxillofacial Surgery, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Adrian Franke
- Department of Oral and Maxillofacial Surgery, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Andreas Lipphaus
- Biomechanics Research Group, Chair of Product Development, Faculty of Mechanical Engineering, Ruhr University Bochum, Bochum, Germany
| | - Uwe Teicher
- Fraunhofer Institute for Machine Tools and Forming Technology IWU, Dresden, Germany
| | - Ulrich Witzel
- Biomechanics Research Group, Chair of Product Development, Faculty of Mechanical Engineering, Ruhr University Bochum, Bochum, Germany
| | - Tom Alexander Schröder
- Department of Oral and Maxillofacial Surgery, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
- Else Kröner Fresenius Center for Digital Health, Technische Universität Dresden, Dresden, Germany
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Püffel F, Meyer L, Imirzian N, Roces F, Johnston R, Labonte D. Correction to: 'Developmental biomechanics and age polyethism in leaf-cutter ants' (2023) by Püffel et al.. Proc Biol Sci 2023; 290:20231983. [PMID: 37728277 PMCID: PMC10510440 DOI: 10.1098/rspb.2023.1983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/21/2023] Open
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Inchingolo F, Patano A, Inchingolo AM, Riccaldo L, Morolla R, Netti A, Azzollini D, Inchingolo AD, Palermo A, Lucchese A, Di Venere D, Dipalma G. Analysis of Mandibular Muscle Variations Following Condylar Fractures: A Systematic Review. J Clin Med 2023; 12:5925. [PMID: 37762866 PMCID: PMC10532393 DOI: 10.3390/jcm12185925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/30/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
This review analyzes muscle activity following mandibular condylar fracture (CF), with a focus on understanding the changes in masticatory muscles and temporomandibular joint (TMJ) functioning. MATERIALS AND METHODS The review was conducted following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. A search was performed on online databases using the keywords "masticatory muscles" AND ("mandibular fracture" OR "condylar fracture"). The eligibility criteria included clinical trials involving human intervention and focusing on muscle activity following a condylar fracture. RESULTS A total of 13 relevant studies were reviewed. Various studies evaluated muscle activity using clinical evaluation, bite force measurement, electromyography (EMG), magnetic sensors and radiological examinations to assess the impact of mandibular fractures on masticatory muscles. CONCLUSIONS Mandibular condylar fractures can lead to significant changes in muscle activity, affecting mastication and TMJ functioning. EMG and computed tomography (CT) imaging play crucial roles in assessing muscle changes and adaptations following fractures, providing valuable information for treatment planning and post-fracture management. Further research is required to explore long-term outcomes and functional performance after oral motor rehabilitation in patients with facial fractures. Standardized classifications and treatment approaches may help improve the comparability of future studies in this field.
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Affiliation(s)
- Francesco Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy; (A.P.); (A.M.I.); (R.M.); (A.N.); (D.A.); (A.D.I.); (D.D.V.); (G.D.)
| | - Assunta Patano
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy; (A.P.); (A.M.I.); (R.M.); (A.N.); (D.A.); (A.D.I.); (D.D.V.); (G.D.)
| | - Angelo Michele Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy; (A.P.); (A.M.I.); (R.M.); (A.N.); (D.A.); (A.D.I.); (D.D.V.); (G.D.)
| | - Lilla Riccaldo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy; (A.P.); (A.M.I.); (R.M.); (A.N.); (D.A.); (A.D.I.); (D.D.V.); (G.D.)
| | - Roberta Morolla
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy; (A.P.); (A.M.I.); (R.M.); (A.N.); (D.A.); (A.D.I.); (D.D.V.); (G.D.)
| | - Anna Netti
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy; (A.P.); (A.M.I.); (R.M.); (A.N.); (D.A.); (A.D.I.); (D.D.V.); (G.D.)
| | - Daniela Azzollini
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy; (A.P.); (A.M.I.); (R.M.); (A.N.); (D.A.); (A.D.I.); (D.D.V.); (G.D.)
| | - Alessio Danilo Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy; (A.P.); (A.M.I.); (R.M.); (A.N.); (D.A.); (A.D.I.); (D.D.V.); (G.D.)
| | - Andrea Palermo
- College of Medicine and Dentistry, Birmingham B4 6BN, UK;
| | - Alessandra Lucchese
- Unit of Dentistry-Orthodontics, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy;
- Unit of Dentistry, Research Center for Oral Pathology and Implantology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Daniela Di Venere
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy; (A.P.); (A.M.I.); (R.M.); (A.N.); (D.A.); (A.D.I.); (D.D.V.); (G.D.)
| | - Gianna Dipalma
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy; (A.P.); (A.M.I.); (R.M.); (A.N.); (D.A.); (A.D.I.); (D.D.V.); (G.D.)
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Püffel F, Meyer L, Imirzian N, Roces F, Johnston R, Labonte D. Developmental biomechanics and age polyethism in leaf-cutter ants. Proc Biol Sci 2023; 290:20230355. [PMID: 37312549 PMCID: PMC10265030 DOI: 10.1098/rspb.2023.0355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/05/2023] [Indexed: 06/15/2023] Open
Abstract
Many social insects display age polyethism: young workers stay inside the nest, and only older workers forage. This behavioural transition is accompanied by genetic and physiological changes, but the mechanistic origin of it remains unclear. To investigate if the mechanical demands on the musculoskeletal system effectively prevent young workers from foraging, we studied the biomechanical development of the bite apparatus in Atta vollenweideri leaf-cutter ants. Fully matured foragers generated peak in vivo bite forces of around 100 mN, more than one order of magnitude in excess of those measured for freshly eclosed callows of the same size. This change in bite force was accompanied by a sixfold increase in the volume of the mandible closer muscle, and by a substantial increase of the flexural rigidity of the head capsule, driven by a significant increase in both average thickness and indentation modulus of the head capsule cuticle. Consequently, callows lack the muscle force capacity required for leaf-cutting, and their head capsule is so compliant that large muscle forces would be likely to cause damaging deformations. On the basis of these results, we speculate that continued biomechanical development post eclosion may be a key factor underlying age polyethism, wherever foraging is associated with substantial mechanical demands.
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Affiliation(s)
- Frederik Püffel
- Department of Bioengineering, Imperial College London, London, UK
| | - Lara Meyer
- Faculty of Nature and Engineering, City University of Applied Sciences Bremen, Bremen, Germany
| | - Natalie Imirzian
- Department of Bioengineering, Imperial College London, London, UK
| | - Flavio Roces
- Department of Behavioural Physiology and Sociobiology, University of Würzburg, Würzburg, Germany
| | | | - David Labonte
- Department of Bioengineering, Imperial College London, London, UK
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Püffel F, Johnston R, Labonte D. A biomechanical model for the relation between bite force and mandibular opening angle in arthropods. R Soc Open Sci 2023; 10:221066. [PMID: 36816849 PMCID: PMC9929505 DOI: 10.1098/rsos.221066] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Bite forces play a key role in animal ecology: they affect mating behaviour, fighting success, and the ability to feed. Although feeding habits of arthropods have a significant ecological and economical impact, we lack fundamental knowledge on how the morphology and physiology of their bite apparatus controls bite performance, and its variation with mandible gape. To address this gap, we derived a biomechanical model that characterizes the relationship between bite force and mandibular opening angle from first principles. We validate this model by comparing its geometric predictions with morphological measurements on the muscoloskeletal bite apparatus of Atta cephalotes leaf-cutter ants, using computed tomography (CT) scans obtained at different mandible opening angles. We then demonstrate its deductive and inductive utility with three examplary use cases: Firstly, we extract the physiological properties of the leaf-cutter ant mandible closer muscle from in vivo bite force measurements. Secondly, we show that leaf-cutter ants are specialized to generate extraordinarily large bite forces, equivalent to about 2600 times their body weight. Thirdly, we discuss the relative importance of morphology and physiology in determining the magnitude and variation of bite force. We hope that a more detailed quantitative understanding of the link between morphology, physiology, and bite performance will facilitate future comparative studies on the insect bite apparatus, and help to advance our knowledge of the behaviour, ecology and evolution of arthropods.
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Affiliation(s)
- Frederik Püffel
- Department of Bioengineering, Imperial College London, London SW7 2AZ, UK
| | - Richard Johnston
- School of Engineering, Materials Research Centre, Swansea University, Swansea SA2 8PP, UK
| | - David Labonte
- Department of Bioengineering, Imperial College London, London SW7 2AZ, UK
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