Management and control of isotonic contraction generated stress: evaluation of masseter muscle deformation pattern by means of ecography
Identifieur interne : 000180 ( Main/Exploration ); précédent : 000179; suivant : 000181Management and control of isotonic contraction generated stress: evaluation of masseter muscle deformation pattern by means of ecography
Auteurs : A. Busato [Italie] ; G. Balconi [Italie] ; V. Vismara [Italie] ; L. Bertelè [Italie] ; G. Garo ; D. De Gregorio [Italie]Source :
- Oral & Implantology [ 1974-5648 ] ; 2017.
Abstract
The objective of the following study is to observe the behavior of the six layers of the masseter during an isometric contraction at maximum exertion with the deformation pattern analysis method.
This study has been conducted by use of an ultrasound machine (MicrUs ext-1H Telemed Medical Systems Milano) and a linear probe (L12-5l40S-3 5–12 MHz 40 mm) which allowed us to record a video (DCM) comprised of 45 frames per second. The probe was fixed to a brace and the patient was asked to clench their teeth as hard as possible, obtain the muscle’s maximum exertion, for 5 seconds three times, with 30 seconds intervals in between. Both right and left masseter muscles were analyzed. Then we applied to the resulting video a software (Mudy 1.7.7.2 AMID Sulmona Italy) for the analysis of muscle deformation patterns (contraction, dilatation, cross-plane, vertical strain, horizontal strain, vertical shear, horizontal shear, horizontal displacement, vertical displacement). The number of videos of masseter muscles in contraction at maximum exertion due to dental clenching made during this research is around 12,000. Out of these we chose 1,200 videos which examine 200 patients (100 females, 100 males).
The analysis of the deformation patterns of the masseter allows us to observe how the six layers of the muscle have different and specific functions each, which vary depending on the applied force (application point, magnitude and direction) so that we find it impossible to assign to one of the three sections of the muscle a mechanical predominance. Therefore it appears that the three parts of the muscle have specific and synergistic tasks
Url:
DOI: 10.11138/orl/2016.9.1S.045
PubMed: 28280532
PubMed Central: 5333755
Affiliations:
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Busato</name><affiliation wicri:level="1"><nlm:aff id="af1-45-53">Medica Libra, Milano, Italy</nlm:aff><country xml:lang="fr">Italie</country><wicri:regionArea>Medica Libra, Milano</wicri:regionArea><wicri:noRegion>Milano</wicri:noRegion></affiliation></author><author><name sortKey="Balconi, G" sort="Balconi, G" uniqKey="Balconi G" first="G." last="Balconi">G. Balconi</name><affiliation wicri:level="1"><nlm:aff id="af2-45-53">Department of Radiology, Hospital San Raffaele Turro, Milano, Italy</nlm:aff><country xml:lang="fr">Italie</country><wicri:regionArea>Department of Radiology, Hospital San Raffaele Turro, Milano</wicri:regionArea><wicri:noRegion>Milano</wicri:noRegion></affiliation></author><author><name sortKey="Vismara, V" sort="Vismara, V" uniqKey="Vismara V" first="V." last="Vismara">V. Vismara</name><affiliation wicri:level="1"><nlm:aff id="af1-45-53">Medica Libra, Milano, Italy</nlm:aff><country xml:lang="fr">Italie</country><wicri:regionArea>Medica Libra, Milano</wicri:regionArea><wicri:noRegion>Milano</wicri:noRegion></affiliation></author><author><name sortKey="Bertele, L" sort="Bertele, L" uniqKey="Bertele L" first="L." last="Bertelè">L. Bertelè</name><affiliation wicri:level="1"><nlm:aff id="af3-45-53">Fondazione Apostolo, Merate, Italy</nlm:aff><country xml:lang="fr">Italie</country><wicri:regionArea>Fondazione Apostolo, Merate</wicri:regionArea><wicri:noRegion>Merate</wicri:noRegion></affiliation></author><author><name sortKey="Garo, G" sort="Garo, G" uniqKey="Garo G" first="G." last="Garo">G. Garo</name><affiliation><nlm:aff id="af4-45-53">President and Founder of Siach - The International Society of Surgical Anatomy</nlm:aff></affiliation></author><author><name sortKey="De Gregorio, D" sort="De Gregorio, D" uniqKey="De Gregorio D" first="D." last="De Gregorio">D. De Gregorio</name><affiliation wicri:level="1"><nlm:aff id="af5-45-53">Director of Siach, Aesthetic Surgeon, Perugia, Italy</nlm:aff><country xml:lang="fr">Italie</country><wicri:regionArea>Director of Siach, Aesthetic Surgeon, Perugia</wicri:regionArea><wicri:noRegion>Perugia</wicri:noRegion></affiliation></author></analytic><series><title level="j">Oral & Implantology</title><idno type="ISSN">1974-5648</idno><idno type="eISSN">2035-2468</idno><imprint><date when="2017">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><title>SUMMARY</title><sec><title>Purpose</title><p>The objective of the following study is to observe the behavior of the six layers of the masseter during an isometric contraction at maximum exertion with the deformation pattern analysis method.</p></sec><sec><title>Materials and methods</title><p>This study has been conducted by use of an ultrasound machine (MicrUs ext-1H Telemed Medical Systems Milano) and a linear probe (L12-5l40S-3 5–12 MHz 40 mm) which allowed us to record a video (DCM) comprised of 45 frames per second. The probe was fixed to a brace and the patient was asked to clench their teeth as hard as possible, obtain the muscle’s maximum exertion, for 5 seconds three times, with 30 seconds intervals in between. Both right and left masseter muscles were analyzed. Then we applied to the resulting video a software (Mudy 1.7.7.2 AMID Sulmona Italy) for the analysis of muscle deformation patterns (contraction, dilatation, cross-plane, vertical strain, horizontal strain, vertical shear, horizontal shear, horizontal displacement, vertical displacement). The number of videos of masseter muscles in contraction at maximum exertion due to dental clenching made during this research is around 12,000. Out of these we chose 1,200 videos which examine 200 patients (100 females, 100 males).</p></sec><sec><title>Results</title><p>The analysis of the deformation patterns of the masseter allows us to observe how the six layers of the muscle have different and specific functions each, which vary depending on the applied force (application point, magnitude and direction) so that we find it impossible to assign to one of the three sections of the muscle a mechanical predominance. Therefore it appears that the three parts of the muscle have specific and synergistic tasks</p></sec></div></front></TEI><affiliations><list><country><li>Italie</li></country></list><tree><noCountry><name sortKey="Garo, G" sort="Garo, G" uniqKey="Garo G" first="G." last="Garo">G. Garo</name></noCountry><country name="Italie"><noRegion><name sortKey="Busato, A" sort="Busato, A" uniqKey="Busato A" first="A." last="Busato">A. Busato</name></noRegion><name sortKey="Balconi, G" sort="Balconi, G" uniqKey="Balconi G" first="G." last="Balconi">G. Balconi</name><name sortKey="Bertele, L" sort="Bertele, L" uniqKey="Bertele L" first="L." last="Bertelè">L. Bertelè</name><name sortKey="De Gregorio, D" sort="De Gregorio, D" uniqKey="De Gregorio D" first="D." last="De Gregorio">D. De Gregorio</name><name sortKey="Vismara, V" sort="Vismara, V" uniqKey="Vismara V" first="V." last="Vismara">V. Vismara</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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