Masseter Muscle Analysis
Masseter Muscle Analysis - Related Videos
06:46
In Vivo Functional Assessment of Rat Masseter Muscle Following Surgical Creation of a Volumetric Muscle Loss (VML) Injury
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Cited by 1 •
2024
Volumetric muscle loss (VML) injuries exceed endogenous regenerative ability, resulting in permanent functional deficits. Current VML research primarily focuses on limb and trunk muscles. To extend mechanistic studies of VML to craniofacial muscles, this article describes an in vivo method for longitudinal assessment of masseter muscle function pre- and post-VML injury.
06:33
Freezing Injury in Mouse Masseter Muscle to Establish an Orofacial Muscle Fibrosis Model
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Cited by 2 •
2023
The goal of this protocol is to establish an orofacial muscle fibrosis model. Comparison of the histology between mice masseter and tibialis anterior muscle after freezing injury confirmed masseter muscle fibrosis. This model will facilitate further investigation into the mechanism underlying orofacial muscle fibrosis.
03:46
Rodent Model of Masseter Volumetric Muscle Loss for Studying Bioengineering Materials
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Cited by 3 •
2024
Here, we describe a protocol for the surgical creation of a volumetric muscle loss (VML) injury in the rat masseter, providing a reproducible and accessible model for the study of craniofacial muscle injuries and their treatment using biomaterials such as the novel hydrogel.
08:42
Myo-mechanical Analysis of Isolated Skeletal Muscle
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Cited by 25 •
2011
To assess the in vivo effects of therapeutic interventions for muscle disease, methods are needed to quantitate force generation and fatigability in treated muscle. We detail an approach to evaluating myo-mechanical properties in explanted mouse hindlimb muscle. This analysis provides a robust approach to quantitating the effects of genetic modification on muscle function, as well as comparison of therapies in mouse models of muscle disease.
10:27
Do's and Don'ts in the Preparation of Muscle Cryosections for Histological Analysis
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Cited by 44 •
2015
Here we demonstrate the most efficient methods for freezing, embedding, cryosectioning, and staining of muscle biopsies to avoid freezing artifacts.
FAQs
It relates measurable features such as muscle size and position to activation and performance during jaw activity. This structural-functional comparison helps explain how the masseter contributes to mandibular stability, chewing, and speech. In biology, the approach provides a way to examine how anatomical organization supports the mechanical demands placed on a jaw-closing muscle.
Neural signals initiate muscle contraction, so activation measurements help connect nervous-system control with jaw movement. Electromyography can record activity associated with this process, allowing researchers to examine whether muscle function corresponds with observed mandibular performance. This connection is important when studying how biological signals produce coordinated actions such as chewing or speech.
Each method addresses a different aspect of function. Anatomical observation and medical imaging provide information about structure, including size and position, whereas electromyography evaluates activation. Bite-force measurement examines performance directly. Combining these approaches can produce a more complete account of how masseter structure, neural activity, and jaw output relate to one another.
Interpretation may change with growth, exercise, pain, bruxism, dental conditions, or neurological disorders. These factors can be associated with differences in muscle structure, activation, or performance, so the same measurement may have different biological significance in different contexts. Considering such influences helps researchers relate observations to development, behavior, or altered masticatory function.
A study can begin with anatomical observation or medical imaging to assess the muscle's size and position, followed by electromyography to examine activation and bite-force measurement to evaluate performance. The selected methods depend on the research question. Used together, they support comparisons between structure, neural control, contraction, and the resulting jaw function.
The approach is useful in anatomy, biomechanics, comparative biology, and clinical assessment of masticatory function. Researchers can apply it to questions involving growth, exercise, pain, bruxism, dental conditions, or neurological disorders. Its value comes from linking measurable muscle characteristics and jaw performance with broader changes in health, development, or biological function.