Effect of Occlusal Interference on Habitual Activity of Human Masseter

Michelotti, Ambrosina; Farella, Mauro; Gallo, Luigi M.; Veltri, Andrea; Palla, Sandro; Martina, R

doi:10.1177/154405910508400712

Cited by 92 publications

(87 citation statements)

References 18 publications

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“…The reduced thickness of the masseter at the crossbite side could be explained by the findings of a recent study, which showed that active occlusal interference can cause reduction in the number of electromyographic activity periods of the masseter muscle per hour and their mean amplitude. 15 It has been shown that reduced activity of the masseter muscle results in thin muscle fibers. 4,16 The successful treatment of the unilateral crossbite seems to have eliminated the underlying reasons for the different level of bilateral activity of the masticatory muscles, and thus the asymmetric stimulation of the masseter muscle.…”

Section: Discussionmentioning

confidence: 99%

Ultrasonographic Thickness of the Masseter Muscle in Growing Individuals with Unilateral Crossbite

Kiliaridis

Mahboubi

Raadsheer

et al. 2007

The Angle Orthodontist

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Objective: To study the bilateral differences in the thickness of the masseter muscles in untreated individuals with lateral crossbite, as well as in subjects with successfully treated functional lateral crossbite, at least three years after the end of treatment. Materials and Methods: Three groups of growing individuals were studied: (1) untreated group: 38 individuals with unilateral crossbite, (2) control group: 224 subjects without transversal malocclusions, and (3) treated group: 18 individuals with functional lateral crossbite, treated with a quad helix, and at least three years out of retention with all permanent teeth erupted. The thickness of the masseter muscle was measured bilaterally with ultrasonography, using a real time scanner with a 7.5 MHz linear array transducer. Results: In the untreated group, the thickness of the masseter muscle on the crossbite side was statistically significantly thinner than the one on the normal side (P ϭ .025). No statistically significant differences were found in the thickness of the masseter muscle between the left and the right side in the control group. In the treated group, no statistically significant differences were found in the thickness of the masseter muscle between the former crossbite side and the normal one. Conclusion:The masseter muscle in untreated individuals with unilateral crossbite is thinner in the crossbite side when compared to the non-crossbite side possibly due to asymmetric activity of the masticatory muscles. Such an asymmetry in thickness of the masseter muscle could not be detected some years after the successful correction of the crossbite.

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Section: Discussionmentioning

confidence: 99%

Ultrasonographic Thickness of the Masseter Muscle in Growing Individuals with Unilateral Crossbite

Kiliaridis

Mahboubi

Raadsheer

et al. 2007

The Angle Orthodontist

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“…Differently, a survey performed in patients with sleep bruxism did not observe any association between self-reported stress and personality variables with EMG measurements of bruxism [177]. The role of occlusal interference as able to trigger sleep bruxism has been recently contested by a recent experimental study [178]. Differently, smoking, caffeine and alcohol consumption represent important risk factors for sleep bruxism occurrence [179].…”

Section: Epidemiologymentioning

confidence: 99%

Sleep-related movement disorders

Merlino

Gigli

2011

Neurol Sci

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Several movement disorders may occur during nocturnal rest disrupting sleep. A part of these complaints is characterized by relatively simple, non-purposeful and usually stereotyped movements. The last version of the International Classification of Sleep Disorders includes these clinical conditions (i.e. restless legs syndrome, periodic limb movement disorder, sleep-related leg cramps, sleep-related bruxism and sleep-related rhythmic movement disorder) under the category entitled sleep-related movement disorders. Moreover, apparently physiological movements (e.g. alternating leg muscle activation and excessive hypnic fragmentary myoclonus) can show a high frequency and severity impairing sleep quality. Clinical and, in specific cases, neurophysiological assessments are required to detect the presence of nocturnal movement complaints. Patients reporting poor sleep due to these abnormal movements should undergo non-pharmacological or pharmacological treatments.

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“…Ferrario (2002) observó que la actividad EMG durante MAV en adultos jóvenes con mayor cantidad de contactos oclusales (> a 10) era más alta que aquéllas con menor cantidad (76) . Michelotti (2005) no encontró diferencias significativas en la actividad EMG en maseteros al introducir interferencias, postulando que sujetos sanos tienen mejor capacidad de adaptación a los cambios oclusales que sujetos que tienen o han presentado TTM (55) . Tartaglia (2008) comparó el comportamiento de la actividad EMG en músculos temporales, maseteros y esternocleidomastoídeos entre dentición natural y distintas rehabilitaciones orales, tanto con prótesis removible como con prótesis implanto-soportada, concluyendo que en apriete estático la actividad EMG sobre rehabilitaciones protésicas es similar a la dentición natural, observando un leve aumento en el temporal, pero que durante la masticación la coordinación neuromuscular era mayor en pacientes con dentición natural que en aquellos con rehabilitación protésica (57) .…”

Section: Oclusión Y Odontología Basada En La Evidenciaunclassified

Oclusión terapéutica: Desde las escuelas de oclusión a la Odontología Basada en Evidencia

Firmani

Becerra

Sotomayor

et al. 2013

Rev. Clin. Periodoncia Implantol. Rehabil. Oral

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RESUMENTanto en la práctica clínica como en la academia, siempre está presente la interrogante de cuál es la mejor posición mandibular para organizar una oclusión terapéutica y satisfacer los requerimientos estéticos y funcionales de los pacientes. Esta pregunta se podría responder desde la perspectiva de las diferentes escuelas de oclusión, siguiendo sus técnicas y utilizando su aparatología. Sin embargo, debido a que no existe suficiente evidencia científica que sustente la superioridad de una escuela sobre la otra, es preciso hacer una revisión donde se expongan los principios en que se basan las distintas filosofías oclusales, los autores que les dieron origen, la época en que surgieron y la terminología que usaron -desde el siglo pasado hasta nuestros días-, contrastándolas con la literatura científica actual. Esta no es una tarea fácil, ya que los estudios disponibles acerca de oclusión presentan gran variabilidad en la definición operacional de los términos, haciendo difícil su comparación. Se sugiere para el futuro buscar una estandarización de las definiciones y técnicas de registro, con el objeto de generar evidencia científica confiable, conducente a la creación de protocolos de recomendación para la toma de decisiones clínicas predecibles desde el punto de vista oclusal. Rev. Clin. Periodoncia Implantol. Rehabil. Oral Vol. 6(2); 90-95, 2013.Palabras clave: Oclusión, escuelas de oclusión, filosofías oclusales, Odontología Basada en Evidencia. ABSTRACTBoth in clinical practice and academia, there is always the question about what is the best mandibular position to organize a therapeutic occlusion that satisfies functional and aesthetic requirements from patients. This question could be answered from the point of view of different occlusion schools of thought, following their techniques and using their apparatuses. However, due to the lack of scientific evidence to support the pre-eminence of a particular school over the rest, it is necessary to go through the princip les that provide the foundations for the different occlusal philosophies: the authors who gave birth to each school of thought, the time in which they were formed and the terminology they used, from the early 20 th century to present times and making a comparison with current scientific literature. This is not an easy task, given that available studies about occlusion feature a great variability in the operational definition of terms, making comparison difficult. The article suggests that it would be necessary for the future to look for a standardization of recording definitions and techniques. The aim is to generate reliable scientific evidence for the creation of protocols of recommendation for predictable decision-making from an occlusal point of view. Rev. Clin. Periodoncia Implantol. Rehabil. Oral Vol. 6(2); 90-95, 2013.Key words: Occlusion, occlusion schools of thought, occlusal philosophies, Evidence-Based Dentistry. Instructora. Departamento de Prótesis Revisión Bibliográfica INTRODUCCIÓNLa oclusión ha sido definida por Davis y Gr...

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Effect of Occlusal Interference on Habitual Activity of Human Masseter

Cited by 92 publications

References 18 publications

Ultrasonographic Thickness of the Masseter Muscle in Growing Individuals with Unilateral Crossbite

Ultrasonographic Thickness of the Masseter Muscle in Growing Individuals with Unilateral Crossbite

Sleep-related movement disorders

Oclusión terapéutica: Desde las escuelas de oclusión a la Odontología Basada en Evidencia

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