Influence of Laterotrusive Occlusal Scheme On Bilateral Masseter EMG Activity During Clenching and Grinding

Campillo, María José; Miralles, Rodolfo; Santander, Hugo; Valenzuela, Saúl; Fresno, María Javiera; Fuentes, Ariel; Zúñiga, Claudia

doi:10.1179/crn.2008.036

Cited by 14 publications

(19 citation statements)

References 42 publications

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“…When we guide a patient to bring the canines in cusp to cusp relationship, we minimize the effect of subjective and psychological factors (4). …”

Section: Discussionmentioning

confidence: 99%

“…An important factor to consider during reconstruction is an occlusal pattern establishment (3). Occlusal reconstruction might be canine guided or group function during excursions (4). The rules of occlusion in natural dentition also apply to full mouth implant reconstruction procedures; yet there isn’t a general consensus regarding natural dentition occlusal relationships during excursions.…”

Section: Introductionmentioning

confidence: 99%

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Comparing the Electromyographic Features of the Masseter and Temporal Muscles in Patients with full Mouth Implant-supported FDPs and Natural Dentition

et al. 2017

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Background:Due to increasing demands for a full mouth implant reconstructions and the fact that the most failures are associated with biomechanical complications, determining the effect of different occlusal patterns on these complications seems inevitable. The aim of this study is to compare affection of different occlusal designs in full mouth implant reconstructed patients on electromyographic activity of temporal and masseter muscles compared to natural dentition.Methods:Thirty-two patients were included in this study, considering that 16 patients had natural dentition and the other 16 were full mouth implant reconstruction patients. In both groups, the participants were divided into two subgroups: 8 patients had canine guidance occlusal pattern and the other eight had a group function occlusal pattern. Muscle contractions were studied during both maximum intercuspation and lateral excursions to the point of intercanine contact using an electromyography device.Results:The average percentages of masseter muscle contraction in lateral excursions relative to maximum intercuspation were as follows: 72.20% in full mouth implant reconstruction patients with group function occlusion 69.49% in natural dentition with group function occlusion 58.85% in full mouth implant reconstruction patients with canine guidance occlusion 30.91% in natural dentition with canine guidance occlusion. The average percentages of temporal muscle contraction in lateral excursions relative to maximum intercuspation were as follows: 70.87% in full mouth implant reconstruction patients with group function occlusion 78.57% in natural dentition with group function occlusion 51.99% in full mouth implant reconstruction patients with canine guidance occlusion 31.55% in natural dentition with canine guidance occlusion.Conclusion:A canine guidance occlusal pattern in both, natural dentition and full mouth implant-supported FDP, patients resulted in decreased muscle contraction. This decreasing is more significant in natural dentition and it is better to establish a canine guided occlusion in a full mouth reconstruction patient.

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“…When we guide a patient to bring the canines in cusp to cusp relationship, we minimize the effect of subjective and psychological factors (4). …”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparing the Electromyographic Features of the Masseter and Temporal Muscles in Patients with full Mouth Implant-supported FDPs and Natural Dentition

et al. 2017

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“…En relación a la actividad EMG durante las excursiones laterales, se observó que en el lado de trabajo era mayor en músculos temporales anteriores y posteriores, pero si se presenta una interferencia oclusal de no-trabajo, la actividad EMG en temporales disminuía, mientras que no se observaron variaciones en la actividad EMG en maseteros (54) . Miralles (2005Miralles ( , 2007Miralles ( , 2008) estudia la actividad EMG en maseteros y en músculos supra e infrahioideos, comparando desoclusiones laterales en guía canina y en función de grupo, demostrando que no había diferencias significativas en las tareas de deslizamiento desde céntrica hasta excéntrica (vis a vis dentaria), viceversa y apriete en excéntrica (vis a vis). Ambos esquemas tienen un efecto similar al evitar la excesiva actividad muscular durante las excursivas, señalando que la estabilidad mandibular en máximo apriete dentario es más importante que un esquema desoclusivo dado (58,59,60) .…”

Section: Oclusión Y Odontología Basada En La Evidenciaunclassified

“…Miralles (2005Miralles ( , 2007Miralles ( , 2008) estudia la actividad EMG en maseteros y en músculos supra e infrahioideos, comparando desoclusiones laterales en guía canina y en función de grupo, demostrando que no había diferencias significativas en las tareas de deslizamiento desde céntrica hasta excéntrica (vis a vis dentaria), viceversa y apriete en excéntrica (vis a vis). Ambos esquemas tienen un efecto similar al evitar la excesiva actividad muscular durante las excursivas, señalando que la estabilidad mandibular en máximo apriete dentario es más importante que un esquema desoclusivo dado (58,59,60) . En relación a implantes y carga dentaria, la literatura indica que el éxito clínico y la longevidad del implante se pueden lograr a través de una oclusión controlada biomecánicamente.…”

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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“…To avoid muscular fatigue, a rest period of one minute between each condition was allowed, and a three-minute rest period after each sequence change was included. 12 For each trial, the total amplitude of EMG activity (including tonic plus phasic activity) was measured in periods of one second each, and the mean value for each curve was obtained. Mean value of the three curves obtained for each subject at each condition was used.…”

Section: Electromyographymentioning

confidence: 99%

The Effect of Tooth Clenching and Grinding on Anterior Temporalis Electromyographic Activity in Healthy Subjects

Gutiérrez¹,

Miralles²,

Fuentes³

et al. 2010

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The aim of this study was to determine the effect of tooth clenching and grinding on anterior temporalis electromyographic (EMG) activity. The sample included 30 healthy subjects with natural dentition and bilateral molar support, 15 with bilateral canine guidance and 15 with bilateral group function. An inclusion criterion was that subjects have to be free of signs and symptoms of any dysfunction of the masticatory system. Bipolar surface electrodes were located on the left and right anterior temporalis muscles. EMG activity was recorded during the following conditions: A. eccentric grinding from intercuspal position to the right lateral edge-to-edge contact position; B. clenching in right edge-to-edge lateral contact position; and C. concentric grinding from right lateral edge-to-edge contact position to intercuspal position. On the working side, EMG activity was not significantly different between conditions in both occlusal schemes. On the nonworking side, EMG activity was significantly higher during condition C than condition B in both occlusal schemes (mixed model with unstructured covariance matrix). When comparing by side, EMG activity was significantly higher during conditions A and B on the working side than on the nonworking side. However, there was no significant difference during condition C. EMG activity was significantly lower with canine guidance than group function on the working side (in all conditions) as well as during concentric grinding on the nonworking side. These results could explain muscular symptoms in the anterior temporalis muscles if the subject is experiencing parafunctional habits either while awake and/or sleep that exceed the individual's adaptation capability.

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Influence of Laterotrusive Occlusal Scheme On Bilateral Masseter EMG Activity During Clenching and Grinding

Cited by 14 publications

References 42 publications

Comparing the Electromyographic Features of the Masseter and Temporal Muscles in Patients with full Mouth Implant-supported FDPs and Natural Dentition

Comparing the Electromyographic Features of the Masseter and Temporal Muscles in Patients with full Mouth Implant-supported FDPs and Natural Dentition

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

The Effect of Tooth Clenching and Grinding on Anterior Temporalis Electromyographic Activity in Healthy Subjects

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