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The Four TMD Problem Categories That Dentistry Still Struggles to Resolve — And Why GNM Has the Answers
Most dentists are comfortable treating the straightforward 80% of TMD cases — basic muscle pain, mild joint discomfort, uncomplicated occlusal problems. But there are four specific categories of TMD that consistently challenge the profession and lead to case failure, relapse and patient frustration. These are the cases where cervical dysfunction, primary joint derangement, Class II Division 2 over-closed bites and anterior open bite patterns intersect with chronic pain — and where standard splints, deprogrammers and even basic neuromuscular orthotics consistently fall short. GNM was built specifically to solve these four categories.
FOUR Main Categories of TMD Problems that Challenge Dentistry
“TMD/TMJ” problems are often not clearly defined amongst clinicians since the musculoskeletal occlusal signs and symptoms cross over into multiple areas involving the dental structural, general body postural, masticatory, occlusal, temporomandibular joints as well as biochemical and emotional (CNS) levels of this disorder.

TMD pain problems (or technically cranio-mandibular disorders) is not simply a temporomandibular joint problem or simply orofacial pain problem for all patients. There is typically key areas to which each TMD case may be rooted, although there can be overlapping problems of each of the following 4 areas as possibly secondary or tertiary.
- TMD: Cervical Dysfunction Problems
- TMD: Temporomandibular Joint Primary Problems
- TMD: Class II Division 2 Type Problems
- TMD: Anterior Open Bite Tendency Problems
The TMD patient and dentist should be able to identify, diagnose and know how to effectively treat each one of these areas of effective treatment is going to be successful. Not understanding one or more of these problems will lead to case failure and disappointment.
Each of these 4 main types of TMD problems have their unique and predominate problems which should be recognized, understood and effectively remedied by the treating clinician if resolution of the overall craniomandibular disorder and pain is to be resolved.
Inadvertently providing intra oral splints, deprogrammers, anterior discluding devies and even neuromuscular orthotics will not be proven successful unless the dentist understands the underlying issues of both gnathology and neuromuscular occlusion principles. Using K7 computerized jaw tracking, electromyograhpy (EMGs) and TENS will not be sufficient enough to resolve the underlying issues of TMD in a timely manner unless the clinician is trained and educated in the fundamentals of occlusion.
Read More On — Clinical Problem Solving:
Read More On — The Four TMD Categories:
- TMD: Cervical Dysfunction Problems →
- TMD: Temporomandibular Joint Primary Problems →
- TMD: Class II Division 2 Type Problems — Over Closed Bites →
- TMD: Anterior Open Bite Tendency Problems →
- Degenerative Joint Disease: Clinical Considerations →
- Headaches and Relief Following Gold Standard for Assessment →
- Limited Mouth Opening Problems →
- Chronic Head Pain: Sufferers in Distress →
- Musculoskeletal Occlusal Signs and Symptoms →
- Initial Treatment Protocol →
- TMJ Care and Management Guidelines →
- What Does Stable Mean? TMJ Lingo or Scientific Basis →
Read More On — Treatment:
- Treatment: Lower Anatomical GNM Orthosis →
- Splints Versus Anatomical Orthotics →
- When to Grind and When Not to Grind →
- Treatment: Clenching →
- What Is Bite Optimization →
- MRI — Disc Reduction Using GNM Optimization Protocols →
- Postural Alignment: Chan’s Dental Model →
- PT Physical Therapy vs. GNM →
- Which Kind of Chiropractor or Body Aligner Needed to Support the Occlusion →
Read More On — Core Concepts:
- What Is Physiologic Occlusion? Why the Answer Determines Everything →
- TMD Treatment Approach: NM or GNM? →
- Cranial Cervical Alignment: Treating Distortions with GNM Orthotic →
Read More On — Why Standard Approaches Fail These Four Categories:
- SCIENTIFIC TRUTHS: Bio-Physiology & Objective Measurements→
- Why OC is Different — The Original Science Behind GNM Dentistry →
- Why Anterior Deprogrammers Fail the Complex TMD Patient — And What GNM Does Instead →
- Why Posterior Occlusal Support Matters — The Neurophysiologic Explanation →
Read More On — Training & Registration:
Written by Clayton A. Chan, D.D.S. — Founder and Director, Occlusion Connections | Las Vegas, Nevada
6170 W. Desert Inn Road, Las Vegas, Nevada 89146 | Telephone: (702) 271-2950
Leader in Gneuromuscular Dentistry

