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Centric relation. Its effect on occluso-muscle harmony.

P E Dawson

    Dental Clinics of North America
    |April 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Occluso-muscle imbalance, a common cause of temporomandibular joint pain, stems from disharmony between teeth articulation and condyle centric relation. Correctly identifying centric relation is crucial for evaluating and treating TMJ disorders.

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    Area of Science:

    • Dental Science
    • Biomechanics
    • Pain Management

    Background:

    • Temporomandibular joint (TMJ) pain is frequently linked to occluso-muscle imbalance.
    • This imbalance often arises from disharmony between dental occlusion and the centric relation of the mandibular condyles.

    Purpose of the Study:

    • To emphasize the critical role of accurate centric relation determination in diagnosing and managing TMJ pain.
    • To explain the consequences of malrelated condylar positions on occluso-muscle function.

    Main Methods:

    • Clinical examination focusing on muscle palpation to identify tenderness.
    • Bilateral manipulation to locate and verify the condyles' centric relation.
    • Evaluation of the condyle-occlusion relationship based on verified centric relation.

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    Main Results:

    • Accurate centric relation is defined as the most superior condylar position in the fossae, resisting downward or backward/forward movement.
    • Properly harmonizing occlusion to a verified centric relation eliminates muscle protective responses.
    • Failure to establish correct centric relation leads to persistent occlusal interferences and perpetuated muscle imbalance.

    Conclusions:

    • Correctly identifying and verifying centric relation is a prerequisite for evaluating occlusal relationships and TMJ health.
    • Achieving occlusion harmony with verified centric relation is essential for resolving occluso-muscle imbalance and TMJ pain.
    • Improperly located centric relation perpetuates or intensifies occluso-muscle dysfunction, regardless of other occlusal adjustments.