CMD – Craniomandibular Dysfunction
Craniomandibular dysfunction (CMD) refers to disorders and pain in the jaw joint, chewing muscles and surrounding structures. It often directly affects swallowing, articulation and voice quality – and is a classic interface area shared by speech therapy, orthodontics and dentistry.
What is CMD?
CMD encompasses functional disorders and pain conditions of the temporomandibular joint (TMJ), the chewing muscles and surrounding structures. It manifests as jaw clicking, pain when chewing, tension in the face and shoulders, and restricted jaw opening.
The speech therapy relevance lies in the close connection between chewing musculature, swallowing pattern and tongue function: a disordered swallowing pattern (myofunctional disorder) can contribute to CMD – and vice versa.
Speech therapy effects
- Altered swallowing pattern due to jaw misalignment or muscle imbalance
- Restricted tongue mobility and articulatory precision
- Increased muscle tension affecting voice quality and placement
- Pain when speaking or chewing
- Often co-occurring: headaches, neck tension, tinnitus
Causes
- Malocclusion or orthodontic irregularities
- Myofunctional disorders (incorrect swallowing and resting patterns)
- Chronic muscle overload from clenching or grinding (bruxism)
- Asymmetric chewing habits
- Stress and psychosomatic factors
Our approach
Speech therapy for CMD focuses on normalising the swallowing pattern, relaxing the chewing muscles, and improving tongue function and lip strength.
As CMD is an interdisciplinary condition, we work closely with orthodontists, dentists and physiotherapists as needed. Our practice rooms within Lachhansa Praxis Erding allow for short communication paths with the orthodontics and paediatric dentistry teams.
Therapy process
- 1Assessment: chewing muscles, jaw mobility, swallowing pattern, tongue resting position
- 2Coordination with treating orthodontists or dentists
- 3Muscle relaxation exercises and self-massage
- 4Myofunctional therapy: swallowing pattern, tongue resting position, lip strength
- 5Stress reduction and body awareness
- 6Progress review and interdisciplinary feedback
Frequently asked questions
Who treats CMD – dentist, orthodontist or speech therapist?
CMD is typically treated by an interdisciplinary team. Dentists and orthodontists address occlusion and can fit occlusal splints. Speech therapy addresses the myofunctional aspects: swallowing pattern, tongue function and muscle balance. Physiotherapy for neck and shoulders may also be indicated.
Can an occlusal splint alone resolve CMD?
A splint relieves the jaw joint and reduces symptoms, but does not address the cause if an incorrect swallowing pattern or myofunctional disorder is present. Speech therapy works on the underlying muscles and movement patterns.
Does health insurance cover the costs?
Speech therapy for CMD is reimbursable by statutory health insurance with a doctor's prescription when a myofunctional disorder is present. Referrals can be issued by ENT specialists, orthodontists or dentists.
Ready for the next step?
Book your first appointment online or get in touch with our practice in Erding.