TMJ Diagnostics in Essen-Rüttenscheid: Targeted Assessment of Masticatory-System Symptoms

The term covers examination of the functional interaction between

• the temporomandibular joints,
• masticatory muscles,
• movements of the lower jaw,
• teeth and tooth contacts,
• and adjacent functional structures.

The aim is not to generate as many measurements as possible. The important point is to assess a specific suspicion:

Is there actually a functional disorder of the masticatory system — and if so, which structures are likely to be involved?

The current S2k guideline on occlusal splints describes precisely this purpose of functional diagnostics: it should be used to assess a suspected temporomandibular disorder.

Temporomandibular disorder is an umbrella term for different functional diseases or disorders affecting the masticatory system.

Pain and/or functional limitations are typically the main features.

Symptoms may occur, for example,

• in the masticatory muscles,
• directly around a temporomandibular joint,
• in front of the ear,
• when opening or closing the mouth,
• when chewing,
• or during certain lower-jaw movements.

Restricted movement, coordination problems or joint sounds may also form part of the findings.

TMD is therefore not one single disease with one single cause.

A functional examination may be considered particularly when symptoms recur or interfere with function.

Typical reasons include:

• pain around the temporomandibular joint,
• pain or tenderness in the masticatory muscles,
• pain when chewing,
• clearly restricted mouth opening,
• a lower jaw that noticeably deviates to one side during opening,
• a feeling that the jaw is locking,
• newly developed joint sounds or joint sounds associated with symptoms,
• the feeling that the bite suddenly no longer fits as usual,
• or functional symptoms associated with clenching or grinding.

The cause cannot be determined from a symptom list alone.

No.

A temporomandibular joint can click without pain or a relevant functional limitation.

The current S2k guideline explicitly notes that certain joint sounds or disc displacements without pain and without dysfunction do not automatically require treatment.

The more important questions are therefore:

• Is the sound new?
• Is there pain at the same time?
• Is mouth opening limited?
• Does the joint lock?
• Are there other functional changes?

An isolated click that has remained unchanged for a long time and is painless is a different situation from a joint that suddenly becomes painful or can no longer move normally.

Clinical functional analysis is the basis of TMD diagnostics.

It begins with a detailed history.

Questions may include:

• Where exactly do the symptoms occur?
• How long have they been present?
• Are they constant or limited to certain movements?
• Do they become worse when chewing?
• Have there been previous treatments?
• Do you clench or grind your teeth?
• Have there been injuries or changes to dental restorations?
• Are there relevant general medical conditions or medications?

This is followed by the clinical examination.

Muscles and adjacent structures can be examined by targeted palpation.

The examination assesses whether the patient's familiar pain can be reproduced and whether certain muscle areas are unusually tender to pressure.

This is important because pain in the jaw region does not necessarily originate from the joint itself.

In some patients, the main problem lies more in the muscles; in others, it lies more in the temporomandibular joint. Several structures may also be involved.

Responsible diagnostics therefore avoids prematurely labelling every complaint as a “TMJ problem”.

During the examination, mouth opening and side-to-side movements of the lower jaw can be observed and measured.

For example, attention may be paid to:

• How far can the mouth open?
• Is the movement symmetrical?
• Does the lower jaw noticeably deviate to one side?
• Is there locking?
• Does the familiar pain occur during a particular movement?
• Are there joint sounds?

Not every small deviation is pathological.

Measurements are therefore assessed together with the symptoms and other findings.

Yes. Joint function is part of the clinical examination.

The assessment may include:

• tenderness or pain,
• mobility,
• clicking,
• crepitus or rubbing sounds,
• and unusual movement patterns.

A joint sound alone, however, does not reveal which structure is involved or whether treatment is required.

The overall clinical picture remains decisive.

Contacts between the upper and lower teeth can also be examined.

The purpose is not to declare a “wrong bite” to be the cause of all symptoms at the first appointment.

The current S2k guideline on instrumental functional analysis emphasises that pain in the craniomandibular system can have multifactorial causes.

That is an important boundary.

An unusual tooth contact can be relevant in a particular situation. This does not mean that every TMD is caused by occlusal disturbances or that teeth should routinely be ground down.

No.

Bruxism — clenching or grinding the teeth — and TMD can be associated with one another, but they are not the same thing.

A person may clench or grind without having a painful TMD.

Conversely, TMD symptoms may occur without bruxism being the sole explanation.

Visible wear on the teeth therefore does not automatically prove a current TMD either.

If there are signs of bruxism, they are assessed as one part of the overall situation.

Not every patient with TMJ symptoms requires an extensive instrumental analysis.

The clinical examination takes priority initially.

Instrumental procedures may be useful for certain additional questions, for example when

• complex dental restorations are being planned,
• the jaw relationship needs to be reconstructed more precisely,
• the existing bite position cannot be assessed reliably from a functional perspective,
• or the clinical findings justify supplementary functional analysis.

Which method is appropriate depends on the specific problem.

A technical measurement is therefore not a quality marker in itself and does not replace the clinical diagnosis.

No.

Imaging is not automatically part of every TMJ assessment.

For many functional symptoms, the clinical examination initially provides the most important information.

Imaging is considered when there is a specific structural question to answer.

Different imaging methods may be appropriate depending on the situation.

The choice depends on which structure needs to be assessed.

MRI may, for example, be relevant for certain questions involving soft tissues and joint structures.

X-ray procedures or three-dimensional imaging may play a role for bony questions.

CBCT (DVT), however, is not automatically useful simply because a patient has jaw clicking or masticatory-muscle pain.

At the practice, three-dimensional X-ray diagnostics are generally used only when they are required to answer a specific medical question.

Imaging should therefore answer a clinical question — not replace the clinical examination.

Headaches and facial pain can occur together with TMD.

That does not mean that every headache is caused by the masticatory system.

The current guideline deliberately describes this relationship cautiously: symptoms involving the head, ears, throat, neck or shoulders may occur at the same time, but are not necessarily causally related.

Headaches have many possible causes.

If symptoms do not clearly fit the dental functional picture, are severe, develop recently or are accompanied by other warning signs, medical or specialist assessment may be required.

Ear-related symptoms can occur together with functional jaw symptoms.

Here too, a direct cause-and-effect conclusion is problematic.

Ear pain may, for example, be referred from the jaw region, but it can also have independent ENT causes.

Tinnitus likewise cannot be explained solely by an unusual jaw finding.

TMJ diagnostics can therefore investigate signs within the masticatory system, but it does not replace ENT or neurological assessment when such assessment is medically indicated.

Neck and shoulder symptoms can occur at the same time in patients with TMD.

This does not automatically mean that the temporomandibular joint is the cause.

This distinction is important because muscular pain is often multifactorial.

Responsible functional diagnostics should therefore not advertise promises such as:

“We can find the cause of your back or neck pain through your jaw.”

Where orthopaedic or other medical factors are likely, interdisciplinary assessment may be more appropriate than a purely dental explanation.

Psychosocial factors such as stress, anxiety or chronic strain can influence the experience of pain and functional symptoms.

They are not, however, the sole explanation for TMD either.

With persistent pain, it can therefore be useful to consider not only the joint and teeth, but also factors that may intensify or maintain pain.

This does not mean that the symptoms are “only psychological”.

Rather, it reflects the current understanding of many musculoskeletal pain conditions as multifactorial.

Not routinely.

Irreversible changes to healthy tooth structure should not be undertaken prematurely.

The current S2k guideline on instrumental functional analysis emphasises that systematic reshaping, grinding or build-up of occlusal surfaces is only rarely necessary for pain caused by dysfunction.

This supports an important principle:

Diagnose first, then consider the most reversible steps possible before irreversible changes are contemplated.

Which treatment is actually appropriate then depends on the specific diagnosis.

No.

Not every TMD requires an occlusal splint.

The current S2k guideline explicitly describes situations involving joint sounds or certain disc displacements without pain and without relevant functional impairment where splint treatment should not be derived from that finding alone.

A splint is therefore neither a general “TMD test” nor an automatic consequence of every functional assessment.

If splint treatment is considered, there should be a specific functional diagnosis and indication for it.

The precise scope depends on the symptoms.

Assessment typically begins with:

1. a discussion of the symptoms and their course,
2. a clinical examination of the masticatory muscles and temporomandibular joints,
3. assessment of lower-jaw movements,
4. evaluation of relevant tooth and bite relationships.

Only after this is it decided whether an additional examination is useful.

Depending on the question, this may involve further functional analysis or imaging.

Not every patient therefore requires the same diagnostic pathway.

Useful information may include:

• information about when and under which circumstances the symptoms occur,
• previous findings or imaging, if available,
• a list of relevant medications,
• any existing bite splints,
• and information about previous TMD, orthodontic, physiotherapy or prosthetic treatment.

If the symptoms fluctuate, it may also be helpful to make a brief note before the appointment of when they are particularly strong or mild.

No flat package price is stated on this page.

The effort involved depends on whether a clinical functional examination is sufficient or whether additional diagnostic procedures are medically appropriate.

Reimbursement also depends on the specific service and insurance status.

Before additional chargeable diagnostic procedures are carried out, it should therefore be made clear which examination is planned and what costs are to be expected.

TMJ diagnostics begins with a clinical examination — not with as much technology as possible.

Important elements are:

• an accurate description of the symptoms,
• examination of the masticatory muscles and temporomandibular joints,
• assessment of lower-jaw movements,
• evaluation of relevant tooth contacts,
• and a clear functional diagnosis.

Instrumental procedures or imaging can supplement diagnostics for selected questions.

Jaw clicking alone does not automatically mean a TMD requires treatment. Likewise, headaches or ear, neck or shoulder symptoms do not prove that their cause lies in the jaw.

The aim is therefore a differentiated diagnosis before treatment is recommended.

Further information:

Treatments at the practice

The medical assessment is based in particular on the DGFDT/DGZMK S2k guideline “Occlusal splints for the treatment of craniomandibular dysfunctions and pre-prosthetic therapy” and on the still-valid S2k guideline “Instrumental dental functional analysis and determination of the jaw relationship” (AWMF 083-017, valid until July 2027).

Current professional information from the German Society for Functional Diagnostics and Therapy and the S3 guideline on bruxism updated in 2026 were also considered.

A particularly important guideline-based boundary is the distinction between symptoms that occur at the same time and a genuinely demonstrated causal relationship. Head, ear, neck or shoulder symptoms are therefore not automatically attributed to TMD.

Editorial review date: 9 August 2026. This page does not replace individual dental, neurological, ENT or orthopaedic diagnostics where such assessment is required because of the symptoms.