Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Alterations in Muscle Tone ll

Alterations in Muscle Tone ll

Alterations in muscle tone are common manifestations of neurological disorders and reflect dysfunction within different nervous system regions. Spasticity, paratonia, and dystonia represent distinct forms of hypertonia, each with unique mechanisms, clinical features, and diagnostic importance.CharacteristicsSpasticity happens from upper motor neuron lesions and is characterized by velocity-dependent resistance to passive movement. Clinical features include:Exaggerated deep tendon reflexesClonus...

Alterations in Muscle Tone lll

Alterations in Muscle Tone lll

Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...

Muscles for Facial Expressions

Muscles for Facial Expressions

The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...

REM Sleep Behavior Disorder

REM Sleep Behavior Disorder

REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...

Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin

Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin

Directly acting muscle relaxants like dantrolene and botulinum toxin (BoNT) have distinct mechanisms and applications. Dantrolene, a hydantoin derivative, acts on the ryanodine receptor (RYR1) in skeletal muscle cells. RYR1 are calcium channels present at the sarcoplasmic reticulum membrane. In response to excitation, they release calcium ions from the sarcoplasmic reticulum to the cytosol. Calcium promotes actin-myosin-mediated contraction of muscles.
The binding of dantrolene to the RYR1...

Oppositional Defiant Disorder

Oppositional Defiant Disorder

A persistent pattern of angry or irritable mood, defiant behavior, or vindictiveness characterizes Oppositional Defiant Disorder (ODD). Symptoms must occur over at least six months, involve interactions with individuals beyond siblings, and meet specific diagnostic criteria to be clinically significant. The disorder affects emotional regulation, social interactions, and behavior, often manifesting early in life and influencing long-term development and functioning.
Diagnostic Criteria and...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Neuralgia-inducing cavitational osteonecrosis - Fact or myth, the debate persists.

National journal of maxillofacial surgery·2019

Same author

Implants in maxillary sinus.

National journal of maxillofacial surgery·2013

Same author

Neuralgia-inducing cavitational osteonecrosis in a patient seeking dental implants.

National journal of maxillofacial surgery·2012

Same journal

A case of accidental ingestion and medical retrieval of dental implant prosthetic hex driver.

National journal of maxillofacial surgery·2026

Same journal

Public perception of oral and maxillofacial surgery among the general population: A cross-sectional study.

National journal of maxillofacial surgery·2026

Same journal

Effects of periodontal treatment during pregnancy, on prevention of preterm low birth weight: A case control study.

National journal of maxillofacial surgery·2026

Same journal

Unicystic ameloblastoma: Systematic review of clinico-pathologic features and treatment outcomes in infants, children and young adults.

National journal of maxillofacial surgery·2026

Same journal

A comparative study on airway morbidity with air, saline, and alkalinized lidocaine used for inflation of tracheal tube cuffs.

National journal of maxillofacial surgery·2026

Same journal

Healing of extraction socket with or without Gelatamp<sup>®</sup> after impacted mandibular third molar surgery: A prospective, comparative, randomized, split mouth study.

National journal of maxillofacial surgery·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 23, 2026

Implantation of Osmotic Pumps and Induction of Stress to Establish a Symptomatic, Pharmacological Mouse Model for DYT/PARK-ATP1A3 Dystonia

Implantation of Osmotic Pumps and Induction of Stress to Establish a Symptomatic, Pharmacological Mouse Model for DYT/PARK-ATP1A3 Dystonia

Published on: September 12, 2020

Oro-mandibular dystonia.

Yazad R Gandhi¹

¹Department of Oral & Maxillofacial Surgery, Saifee Hospital, Mumbai, Maharashtra, India.

National Journal of Maxillofacial Surgery

|March 24, 2012

Summary

This summary is machine-generated.

This case report details oromandibular dystonia (OMD), a condition causing involuntary muscle contractions in the jaw, face, and tongue. It highlights a rare presentation in a 68-year-old male patient.

Keywords:

Botulinum toxoid dystonia masticatory musculature oromandibular

More Related Videos

Induction and Assessment of Levodopa-induced Dyskinesias in a Rat Model of Parkinson's Disease

Induction and Assessment of Levodopa-induced Dyskinesias in a Rat Model of Parkinson's Disease

Published on: October 14, 2021

Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia

Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia

Published on: January 27, 2018

Related Experiment Videos

Last Updated: May 23, 2026

Implantation of Osmotic Pumps and Induction of Stress to Establish a Symptomatic, Pharmacological Mouse Model for DYT/PARK-ATP1A3 Dystonia

Implantation of Osmotic Pumps and Induction of Stress to Establish a Symptomatic, Pharmacological Mouse Model for DYT/PARK-ATP1A3 Dystonia

Published on: September 12, 2020

Induction and Assessment of Levodopa-induced Dyskinesias in a Rat Model of Parkinson's Disease

Induction and Assessment of Levodopa-induced Dyskinesias in a Rat Model of Parkinson's Disease

Published on: October 14, 2021

Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia

Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia

Published on: January 27, 2018

Area of Science:

Neurology
Movement Disorders

Background:

Dystonia involves involuntary muscle contractions.
Oromandibular dystonia (OMD) affects facial and jaw muscles.

Observation:

A 68-year-old man presented with OMD symptoms.
Symptoms included involuntary movements of the jaw, face, and tongue.

Findings:

The patient experienced trismus, bruxism, and abnormal jaw/tongue movements.
This case illustrates a specific manifestation of OMD.

Implications:

Understanding OMD presentation is crucial for diagnosis.
Further research into OMD etiology and treatment is warranted.