Browsing by Subject "TMJ"

Now showing 1 - 5 of 5
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    AVILA TMD SCORE
    (2023-02-03) Avila, Harold
    A method for using the prevalence of Temporomandibular Joint Disorder (TMD) Signs, Symptoms and Severe/Chronic Pain to position a patient within the general population. Use of a single digit (0, 1, 2 or 3) to quickly identify the prevalence of Signs, Symptoms and Severe/Chronic Pain of a patient within the general population.
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    TMD-PX (Physical Exam)
    (2020) Avila, Harold; Kroenke, Kurt
    Form for completing a Physical Exam of a patient experiencing TMD.
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    TMD-SST (Symptom Severity Tracker) Form
    (2020) Avila, Harold; Kroenke, Kurt
    Form for monitoring the severity of symptoms experienced by patients having TMD.
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    TMD-XI (Exam Interview) Form
    (2020) Avila, Harold; Kroenke, Kurt
    A form to assist the healthcare provider in obtaining patient information on patients experiencing TMD symptoms.
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    XROMM analysis of tooth occlusion and temporomandibular joint kinematics during feeding in juvenile miniature pigs
    (2015) Menegaz, Rachel A.; Baier, David B.; Metzger, Keith A.; Herring, Susan W.; Brainerd, Elizabeth L.; Department of Biomedical and Applied Sciences, IU School of Dentistry
    Like humans, domestic pigs are omnivorous and thus are a common model for human masticatory function. Prior attempts to characterize food–tooth interactions and jaw movements associated with mastication have been limited to aspects of the oral apparatus that are visible externally (with videography) and/or to 2D movements of oral structures (with monoplanar videofluoroscopy). We used XROMM, a 3D technique that combines CT-based morphology with biplanar videofluoroscopy, to quantify mandibular kinematics, tooth occlusion and mandibular condylar displacements within the temporomandibular joint (TMJ) during feeding. We observed that the pig TMJ moved detectably in only three of six possible degrees of freedom during mastication: two rotations, pitch and yaw; and one translation, protraction–retraction. Asymmetrical yaw around a dorsoventral axis produced the observed alternating left–right chewing cycles responsible for food reduction. Furthermore, the relative motions of the upper and lower premolars contained a substantial mesiodistal component in addition to the buccolingual component, resulting in an oblique (rather than a strictly transverse) power stroke. This research demonstrates the capacity of XROMM to explore the kinematic underpinnings of key masticatory movements, such as the occlusal power stroke, by integrating tooth, joint and rigid body jaw movements. XROMM also allowed us to test kinematic hypotheses based on skeletal anatomy with actual kinematics observed during naturalistic feeding behaviors. We observed that the soft tissue structures of the TMJ appear to play a significant role in limiting the range of motion of a joint, and thus analyses based solely on osseous morphology may over-estimate joint mobility.