TMJ Disorder:
Causes and Contributing Factors

A problem with the temporomandibular joint (TMJ) is often due to a combination of several factors. Research continues to shed light on the causes and risk factors for TMJ disorder.

Underlying causes of TMJ disorder are generally categorized in three ways — inflammatory joint disease (arthritis), myofascial pain (muscle tension), or internal derangement (TMJ displacement or dysfunction) — with a variety of possible contributing factors.

Inflammatory Joint Disease

• Autoimmune conditions
• Infection
• Genetics
• Environmental Factors
• Hormonal changes
• Age
Injury or trauma
Obesity
Smoking
• Other medical conditions

Myofascial Pain

• Muscle strain/fatigue
Muscle injury or trauma
Poor posture
Stress
Lack of physical activity
Muscle fatigue
Nutritional factors
Sleep disturbances
Chronic medical conditions

Internal Derangement

• Trauma or injury to the jaw
• Chronic jaw overuse or strain
Joint hypermobility
Teeth misalignment
Joint degeneration
Prolonged mouth opening during dental procedures
Bruxism
Genetic factors
Lack of proper bite support
Stress
Joint inflammation

For answers to your questions about TMJ disorder, talk with your FPS provider.