Understanding Chronic vs. Acute Temporomandibular Disorder (TMD) in Adolescents: Key Insights and Implications
- Julian Simpson
- Apr 27
- 3 min read
Updated: May 13
Understanding Chronic vs. Acute Temporomandibular Disorder (TMD) in Adolescents: Key Insights and Implications
Temporomandibular disorder (TMD) is a common musculoskeletal condition affecting the jaw joint (TMJ) and surrounding muscles. It can cause pain, stiffness, restricted jaw movement, headaches, and jaw noises such as clicking or popping. While TMD is often associated with adults, it is also prevalent in adolescents, and when left untreated, can lead to chronic symptoms and permanent structural changes.
Acute vs. Chronic TMD
TMD can be classified as acute (symptoms lasting less than 3 months) or chronic (symptoms persisting for 3 months or longer). Research in adolescents aged 12–18 years shows that chronic TMD is associated with more significant structural changes, longer treatment durations, and certain contributing lifestyle factors.
Key Findings from Adolescent TMD Research
1. Treatment Duration:Chronic TMD patients often require extended treatment, with an average duration of almost 14 months, compared to 8 months in acute cases. Treatment lasting over a year was the strongest predictor of chronicity, increasing the likelihood of chronic TMD by over 8 times.
2. Structural Changes:
TMJ Joint Space: Chronic TMD patients showed narrower anterior and posterior joint spaces on panoramic radiographs, indicating potential cartilage degeneration.
Facial Midline Discrepancy: Greater nasomaxillary (Na-Mx) and maxillomandibular (Mx-Mn) deviations were observed in chronic TMD, reflecting possible long-term effects on facial symmetry.
Disc Displacement: MRI revealed that anterior disc displacement (ADD) was significantly more common in chronic TMD patients (86.7% vs. 68% in acute cases).
3. Contributing Lifestyle and Clinical Factors: Chronic TMD was linked with:
Bruxism (teeth grinding or clenching)
Poor posture
Sleep problems
Headaches
Irregular diet habits
These factors may contribute to prolonged joint stress and symptom persistence.
This is where we come in as Chiropractors , early detection can lead to better treatment options and delay the possible onset of headaches, poor posture and sleep problems.
Why Early Diagnosis Matters
The progression from acute to chronic TMD underscores the importance of early evaluation and intervention. Adolescents with persistent jaw pain, TMJ noises, or functional limitations should seek assessment promptly to prevent long-term structural changes and the need for prolonged treatment.
Early management strategies may include:
Correcting posture and ergonomic habits
Managing bruxism through mouthguards or behavioral approaches
Addressing sleep and dietary patterns
Targeted jaw exercises and physical therapy
Imaging for Better Diagnosis
Panoramic X-rays can detect joint space narrowing and midline deviations, while MRI is the gold standard for evaluating disc position and joint health.
Our team will help guide you on what is best for you
Takeaway for Adolescents and Parents
Persistent jaw pain in adolescence is not something to ignore. Chronic TMD can affect not only jaw function but also facial growth, posture, and quality of life. Timely evaluation, lifestyle modification, and personalized treatment can prevent chronicity and support long-term oral and musculoskeletal health.
About the Author
Dr Julian Simpson is an Australian chiropractor with over 15 years of experience in musculoskeletal healthcare and rehabilitation.
He is a Board Member of the Chiropractic Australia Research Foundation and has reviewed and written more than 800 evidence-based health articles focused on spinal health, rehabilitation, sports injuries and conservative care approaches.
His treatment focus includes:
Chiropractic adjustments
Sports chiropractic
Massage therapy
Shockwave therapy
Laser therapy
Non-surgical spinal decompression
Dr Simpson provides patient care through Healthwise Chiropractic, serving communities including Sunbury, Melton, Diggers Rest and surrounding regions.
For more information about how we can help YOU with your pain and improve your underlying dysfunction so the problem doesn’t come back .
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Lee YH, Auh QS, Jeon S, Jang SW, Kim TS. Distinguishing acute and chronic TMD in adolescent patients. Sci Rep. 2025 Oct 27;15(1):37402. doi: 10.1038/s41598-025-21302-0. PMID: 41145659; PMCID: PMC12559252.
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