Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Structural Joints: Synovial Joints01:16

Structural Joints: Synovial Joints

6.6K
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
6.6K
Structural Joints: Fibrous Joints01:03

Structural Joints: Fibrous Joints

3.7K
Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...
3.7K
Structural Joints: Cartilaginous Joints01:17

Structural Joints: Cartilaginous Joints

4.0K
As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage.
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary...
4.0K
Joints01:26

Joints

35.6K
Joints, also called articulations or articular surfaces, are points at which ligaments or other tissues connect adjacent bones. Joints permit movement and stability, and can be classified based on their structure or function.
Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial.
Fibrous Joints Are Immovable
The bones of a...
35.6K
Introduction to Joints00:58

Introduction to Joints

4.7K
The adult human body usually has 206 bones, and except for the hyoid bone in the neck, each bone is connected to at least one other bone. Joints are the location where bones come together. Many joints allow for movement between the bones. At these joints, the articulating surfaces of the adjacent bones can move smoothly against each other. However, the bones of other joints may be joined by connective tissue or cartilage. These joints are designed for stability and provide little or no...
4.7K
Ankle Joint01:10

Ankle Joint

2.9K
The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
2.9K

You might also read

Related Articles

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

Sort by
Same author

Gender Differences in the Trajectory and Predictors of Unmet Needs Among Young Stroke Survivors: A Longitudinal Secondary Analysis.

The Journal of cardiovascular nursing·2026
Same author

Massive Mandibular Advancement With Bilateral Sagittal Split Osteotomy and Rib Bone Grafts for Pierre Robin Sequence.

Plastic and reconstructive surgery. Global open·2026
Same author

Response to 'comment on "Five-year population-based study of essential thrombocythemia in Taiwan: Epidemiology, treatment patterns, and sex-based disparities"'.

Journal of the Formosan Medical Association = Taiwan yi zhi·2026
Same author

Response to "Further considerations on sex-based disparities in essential thrombocythemia: Distribution, genotype, thrombotic risk, and survival".

Journal of the Formosan Medical Association = Taiwan yi zhi·2026
Same author

Five-year population-based study of essential thrombocythemia in Taiwan: Epidemiology, treatment patterns, and sex-based disparities.

Journal of the Formosan Medical Association = Taiwan yi zhi·2026
Same author

Effect of a Smart Clothes-Assisted Care System for Persons Living With Dementia on Family Caregivers: Longitudinal Nonblinded Quasi-Experimental Study.

Journal of medical Internet research·2025

Related Experiment Video

Updated: Jan 27, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
07:26

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Published on: August 22, 2022

1.9K

Does Sleep Quality Affect Temporomandibular Joint With Degenerative Joint Changes?

Thuy Duong Tran Duy1, Min-Chi Chen2, Ellen Wen-Ching Ko3

  • 1Research Fellow, Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.

Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons
|March 25, 2019
PubMed
Summary

Poor sleep quality is linked to a higher prevalence of temporomandibular joint degenerative changes in women with skeletal Class III malocclusion. This finding highlights the importance of sleep quality in managing this condition.

More Related Videos

Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice
06:37

Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice

Published on: September 13, 2024

1.9K
Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint
06:06

Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint

Published on: July 22, 2021

6.8K

Related Experiment Videos

Last Updated: Jan 27, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
07:26

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Published on: August 22, 2022

1.9K
Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice
06:37

Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice

Published on: September 13, 2024

1.9K
Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint
06:06

Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint

Published on: July 22, 2021

6.8K

Area of Science:

  • Orthodontics and Dental Surgery
  • Sleep Medicine
  • Radiology

Background:

  • Skeletal Class III malocclusion often requires orthognathic surgery.
  • Temporomandibular joint degenerative changes (DJC-TMJ) are a concern in this patient population.
  • The relationship between sleep quality and DJC-TMJ has not been extensively studied.

Purpose of the Study:

  • To investigate if poor sleep quality increases the prevalence of DJC-TMJ in female patients with skeletal Class III malocclusion.
  • To identify factors associated with DJC-TMJ in this cohort.

Main Methods:

  • Prospective cohort study of 52 female patients undergoing orthognathic surgery for skeletal Class III malocclusion.
  • Sleep quality assessed using the Pittsburgh Sleep Quality Index (PSQI); scores ≥ 5 indicated poor sleep.
  • DJC-TMJ evaluated, with presence defined as 5 or more signs.

Main Results:

  • Poor sleep quality (PSQI score ≥ 5) was significantly associated with an increased prevalence of DJC-TMJ (P = .027).
  • In logistic regression, poor sleep quality (OR, 5.806) and a larger sella-nasion-point A angle (OR, 1.453) were significant predictors of DJC-TMJ.
  • The study included 25 patients with good sleep quality and 27 with poor sleep quality.

Conclusions:

  • Poor sleep quality may be a contributing factor to the development of DJC-TMJ in female patients with skeletal Class III malocclusion.
  • Further research is needed to confirm this association in the general population.
  • Sleep quality should be considered in the management of patients with skeletal Class III malocclusion.