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Related Experiment Videos

Reproducibility of the condylar reference position

E Piehslinger1, A Celar, R Celar

  • 1University of Vienna, School of Dentistry, Austria.

Journal of Orofacial Pain
|January 1, 1993
PubMed
Summary
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The condylar reference position is highly reproducible in both temporomandibular joint (TMJ) symptomatic and asymptomatic individuals. This finding holds true regardless of operator, demonstrating reliable measurements for TMJ diagnostics.

Area of Science:

  • Dentistry
  • Biomechanics
  • Orthodontics

Background:

  • Accurate condylar reference position is crucial for diagnosing temporomandibular joint (TMJ) disorders.
  • Variability in measurement techniques can impact diagnostic reliability.
  • Assessing reproducibility across different patient groups and operators is essential.

Purpose of the Study:

  • To evaluate the reproducibility of the condylar reference position during unstrained mandibular hinging.
  • To determine if TMJ symptoms influence the reproducibility of this measurement.
  • To assess interoperator variability in obtaining the condylar reference position.

Main Methods:

  • Computerized axiography in electronic mandibular position indicator mode was used.
  • Three different operators performed five registrations each.

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  • Data were analyzed using a three-factor analysis of variance (operator, patient group, repetitions).

    • Main Results:

    • No significant influence on reproducibility was found from operator, patient group, or repetitions.
    • High reproducibility was achieved in both symptomatic and asymptomatic subjects.
    • 58.6% of registrations were within +/- 0.1 mm, and 24.3% were within +/- 0.2 mm.

    Conclusions:

    • The method for determining condylar reference position demonstrates high reproducibility.
    • TMJ symptoms do not significantly affect the reliability of condylar position measurements.
    • This technique is reliable for both symptomatic and asymptomatic individuals in clinical practice.