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Craniomandibular Dysfunction (Temporomandibular Joint Disorders) in Dogs

Occurrence: rarer
Location of illness: Head/Neck

Author: Dr. med. vet. Gisa Löwe | Last modified: 06.11.2025

Craniomandibular DysfunctionDysfunction refers to an impaired or abnormal function of an organ or system in the body. This can be due to diseases, disorders, or damage and can affect the quality of life. (CMD) in dogs is a condition that affects the temporomandibular joint and adjacent structures, which can lead to Pain, Inflammatory conditions, and dysfunctionDysfunction refers to an impaired or abnormal function of an organ or system in the body. This can be due to diseases, disorders, or damage and can affect the quality of life..

The most important facts at a glance

Craniomandibular dysfunction (CMD) in dogs affects the temporomandibular joint, which connects the lower jaw to the skull. This condition can be genetic, especially in breeds such as the West Highland White Terrier and the Scottish Terrier, which are prone to skeletal abnormalities. Other causes of CMD can be traumaA trauma refers to a physical injury or damage caused by external force. Traumas can range from simple cuts to severe multiple injuries. or degenerative diseases such as arthritisArthritis is an inflammation of the joints that can cause pain, swelling, stiffness, and limited mobility. There are many forms of arthritis, including rheumatoid arthritis and osteoarthritis.. Common symptoms include difficulty opening the mouth, Schmerzen bei Kieferbewegungen, and Futterverweigerung. DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is made through a thorough examination, often supported by imaging techniques such as X-rays, CT, or MRI. In some cases, arthroscopyArthroscopy is a minimally invasive surgical procedure that allows for the examination and sometimes treatment of damage within a joint. An arthroscope, a thin, lighted tube, is inserted into the joint through a small incision. is performed. Treatment depends on the cause and severity of the condition and includes Schmerzmanagement using medication, physical therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions., or, in severe cases, surgical interventions. The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. varies, with early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. improving quality of life. Preventive measures are difficult but can be supported by targeted breeding strategies and regular veterinary examinations. Research focuses on genetic factors, improved diagnostic methods, and effective treatment approaches to improve the quality of life of affected dogs.

Causes

Craniomandibular dysfunction in dogs encompasses a group of disorders affecting the temporomandibular joint, which connects the mandible (lower jaw) to the skull. This joint is a complex system of bones, muscles, ligaments, and nerves that allows smooth movement of the jaw. Smooth function is crucial for chewing, swallowing, and other daily activities of the dog.

One of the main causes of CMD in dogs can be genetic, especially in breeds prone to dysplasias or other skeletal abnormalities. Other causes may include traumaA trauma refers to a physical injury or damage caused by external force. Traumas can range from simple cuts to severe multiple injuries., such as a blow to the jaw, or degenerative diseases such as arthritisArthritis is an inflammation of the joints that can cause pain, swelling, stiffness, and limited mobility. There are many forms of arthritis, including rheumatoid arthritis and osteoarthritis.. Inflammatory processes can also lead to a deterioration of joint function and cause Pain.

Examining the causes of CMD more closely, a genetic predispositionA predisposition is an innate inclination or susceptibility of an organism to certain diseases or conditions. In dogs and cats, there may be a genetic predisposition to certain conditions such as hip dysplasia or certain heart diseases. may play a role in certain breeds such as the West Highland White Terrier and the Scottish Terrier. This genetic component can lead to abnormal bone development in the jaw area, which becomes visible at a young age in dogs. In other breeds, CMD can arise from other factors such as accidents or chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. stressStress refers to the state of an organism reacting to external stimuli or demands. In veterinary medicine, stress can have physical or psychological effects on animals, impacting their health and well-being..

Symptoms

Very common symptoms:

Common symptoms:

Rare symptoms:

Dogs with CMD often show Pain on jaw movement when opening or closing the mouth. This can manifest as reluctance to eat, chew, or Yawning. Dogs may also react sensitively when touching the jaw area.

Other symptoms may include Swelling in the jaw area, muscle tension in the face, and limited jaw mobility. In severe cases, the dog may not be able to fully open its mouth, which can lead to further problems such as Weight loss and dehydrationDehydration occurs when the body loses more fluid than it takes in. This can lead to a number of problems, including headaches, Dizziness, and in extreme cases, renal failure or Cardiovascular collapse..

Another sign may be a cracking or grinding in the temporomandibular joint that occurs when opening or closing the mouth. Some dogs may also show Behavioral changes, such as Irritability or withdrawal, which may indicate persistentPersistent means lasting or continuing for an extended period. In veterinary medicine, it can refer to chronic diseases or symptoms that do not subside. Pain.

Diagnosis

The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of CMD requires a thorough clinical examination by a veterinarian. The veterinarian will take the dog’s medical historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits. and perform a physical examination to identify signs of Pain or Swelling in the jaw area.

Imaging techniques such as X-rays, CT scans, or MRI can be used to make an accurate diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients.. These techniques allow the veterinarian to assess the structure of the temporomandibular joint and surrounding tissues and to detect possible anomalies or Inflammatory conditions.

In some cases, arthroscopyArthroscopy is a minimally invasive surgical procedure that allows for the examination and sometimes treatment of damage within a joint. An arthroscope, a thin, lighted tube, is inserted into the joint through a small incision. of the temporomandibular joint may also be performed to directly examine the inside of the joint. This minimally invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. technique can help determine the exact cause of CMD and plan targeted treatment.

Therapy

The treatment of CMD in dogs depends on the underlying cause and the severity of the condition. Pain management is an essential part of the treatment and can be achieved through medications such as non-steroidalNon-steroidal refers to medications or substances that are not steroids and often have anti-inflammatory, analgesic, or antipyretic effects. They are used in dogs and cats to treat Pain and Inflammatory conditions. anti-inflammatory drugsAnti-inflammatory drugs are medications that reduce inflammation. They can be divided into nonsteroidal anti-inflammatory drugs (NSAIDs) and corticosteroids and are used in dogs and cats to reduce Inflammatory conditions and Pain. (NSAIDsNSAID (non-steroidal anti-inflammatory drug) stands for non-steroidal anti-inflammatory drugs, a class of medications used to relieve pain, reduce inflammatory conditions, and lower fever without using steroidal agents. They are a commonly used pain reliever in veterinary medicine.), which help to relieve Pain and Inflammatory conditions.

In some cases, physical therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. may be recommended to improve jaw mobility and strengthen the muscles in the jaw and neck area. Exercises, massage, and special techniques can help improve the dog’s quality of life.

In severe cases, or when conservative treatments are not sufficient, surgery may be considered. The type of surgery depends on the specific diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. but may include the removal of excess bone tissue or the repair of joint structures.

Prognosis and follow-up care

The prognosis for dogs with CMD varies depending on the cause and severity of the condition. With early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and appropriate treatment, many dogs can maintain a good quality of life and successfully manage their symptoms.

In cases where CMD is caused by genetic factors or severe degenerative diseases, the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. may be less favorable. Continuous treatment and regular veterinary monitoring are crucial in such cases to control symptoms and slow the progressionProgression refers to the advancement or worsening of a disease over time. It describes an increase in the severity or extent of the disease symptoms. of the disease.

Dogs undergoing surgery can often recover well if aftercare is performed carefully. However, rehabilitation can take time, and cooperation between the veterinarian and owner is crucial for the success of the treatment.

Prevention

The preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. of CMD in dogs can be a challenge, especially when genetic factors are involved. For breeds that are prone to CMD, a targeted breeding strategy can help reduce the risk of the disease.

Regular veterinary examinations are important to detect early signs of CMD or related conditions. Early intervention can help slow the progressionProgression refers to the advancement or worsening of a disease over time. It describes an increase in the severity or extent of the disease symptoms. of the disease and improve the dog’s quality of life.

Avoiding traumaA trauma refers to a physical injury or damage caused by external force. Traumas can range from simple cuts to severe multiple injuries. and excessive stressStress refers to the state of an organism reacting to external stimuli or demands. In veterinary medicine, stress can have physical or psychological effects on animals, impacting their health and well-being. on the jaw can also be helpful. A balanced diet and a healthy lifestyle help to promote the dog’s general health and minimize the risk of CMD and other health problems.

Outlook on current research

Craniomandibular Dysfunction (CMD) in dogs is a relatively new field of research that is receiving increasing attention. Researchers are focusing on better understanding the exact causes and mechanisms of this disease. CMD primarily affects young dogs of certain breeds, suggesting that genetic factors may play a role. Studies are currently investigating the genetic markers associated with this disease to optimize breeding programs and support affected breeds.

Another area of research focuses on improving diagnostic options. Traditionally, X-rays have been used to diagnose CMD. However, newer studies are exploring the role of magnetic resonance imaging (MRI)Magnetic resonance imaging is an imaging technique that uses strong magnetic fields and radio waves to create detailed images of the inside of the body. It is used in veterinary medicine to diagnose diseases of the brain, spine, and other organs. and computed tomography (CT)Computed tomography (CT) is an imaging technique that uses X-rays and computer technology to create cross-sectional images of the body. It enables a detailed view of bones, organs, and other structures and is used for the diagnosis of injuries, diseases, and for planning medical interventions. to enable more accurate and earlier diagnoses. These technologies can help to depict the structural changes in the temporomandibular joint in more detail, which can lead to a better understanding of the disease.

Treatment approaches are also the focus of research. Currently, there is no specific cure for CMD, and treatment often focuses on relieving symptoms. Scientists are investigating the effectiveness of various medications, including anti-inflammatory agents and analgesics, as well as physical therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. approaches to improve the quality of life of affected dogs. In addition, the role of nutrition in the treatment of CMD is being explored, as certain nutrients may have an anti-inflammatory effect.

Another interesting aspect of the research is the investigation of the effects of CMD on the overall behavior and well-being of dogs. Studies show that chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. Pain can significantly affect a dog’s behavior, leading to aggression, depressionDepression refers to a state of reduced mood and activity. In dogs and cats, it can be triggered by various factors, including illness, trauma, or changes in the environment., or anxiety. The research seeks to better understand the connection between CMD and Behavioral changes in order to develop more comprehensive treatment strategies that address both physical and psychologicalPsychological refers to anything related to the mind or behavior. In veterinary medicine, this can include the study of animal behavior, including stress responses and behavioral disorders. symptoms.

Overall, current research on CMD in dogs shows promising progress that could lead to better diagnostic and treatment approaches in the long term. Interdisciplinary collaboration between geneticists, veterinarians, radiologists, and behavioral researchers plays a crucial role in advancing this field. The hope is that through these efforts, the quality of life of dogs with CMD can be significantly improved.

Frequently asked questions (FAQs)

What is Craniomandibular DysfunctionDysfunction refers to an impaired or abnormal function of an organ or system in the body. This can be due to diseases, disorders, or damage and can affect the quality of life. (CMD) in dogs? Craniomandibular dysfunctionDysfunction refers to an impaired or abnormal function of an organ or system in the body. This can be due to diseases, disorders, or damage and can affect the quality of life., also known as temporomandibular joint disease, is a painful condition that affects the temporomandibular joint and surrounding structures in dogs. It leads to Pain and difficulty opening the mouth.
Which breeds are most often affected by CMD? CMD mostly affects young dogs of certain breeds, including the West Highland White Terrier, Cairn Terrier, and Scottish Terrier. Other breeds can also be affected, but less frequently.
What symptoms do dogs with CMD show? The most common symptoms include difficulty chewing, reduced appetite, Swelling in the jaw area, drooling, and occasionally Fever. Affected dogs may also appear restless or lethargic.
How is CMD diagnosed? The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is usually made through a combination of clinical examination and imaging techniques such as X-rays, MRI, or CT scans to visualize structural changes in the temporomandibular joint.
What treatment options are available for CMD? There is no specific cure for CMD. Treatment focuses on relieving symptoms and may include analgesics, anti-inflammatory medications, and physical therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions.. In some cases, surgical intervention may also be necessary.
Can CMD be prevented in dogs? Due to the genetic component of the disease, preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. is difficult. However, breeders can minimize the risk through careful selectionSelection refers to the process of natural or artificial selection of specific individuals for reproduction, based on desired genetic traits. In breeding, this is applied to promote specific characteristics in dogs and cats. of breeding animals. Early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and treatment can help slow the progressionProgression refers to the advancement or worsening of a disease over time. It describes an increase in the severity or extent of the disease symptoms. of the disease.
Should I have my dog with CMD operated on? Surgery is usually only considered in severe cases where the dog’s quality of life is significantly impaired. This decision is usually made in consultation with a veterinarian who considers the specific circumstances of the dog.
Does CMD affect my dog’s behavior? Yes, chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. Pain from CMD can lead to Behavioral changes. Your dog may be Irritability, aggressive, or withdrawn. Effective Pain treatment can help minimize these Behavioral changes.
How long can a dog with CMD live? The life expectancy of a dog with CMD depends on the severity of the disease and the effectiveness of the treatment. Many dogs can lead a relatively normal life with appropriate care and Pain management.
Can my dog’s diet affect CMD? A balanced diet can help reduce Inflammatory conditions and improve general well-being. Some veterinarians recommend diets with omega-3 fatty acids or other anti-inflammatory nutrients.

When to visit the vet?

If the condition worsens / symptoms persist, consult a veterinarian.