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Related Experiment Videos

Determining the accuracy of articulator interchangeability.

G D Kitzis1, P L Millstein, D Nathanson

  • 1Department of Periodontology, State University of New York, School of Dental Medicine, Stony Brook.

The Journal of Prosthetic Dentistry
|June 1, 1991
PubMed
Summary

Calibrated dental articulators maintain positional accuracy when transferring casts between devices. This ensures reliable dental restorations by preserving the precise fit of mounted casts.

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Area of Science:

  • Dental Technology
  • Prosthodontics
  • Occlusion

Background:

  • Articulators are crucial for simulating patient jaw movements in prosthodontics.
  • Ensuring accuracy in transferring mounted casts between articulators is vital for predictable clinical outcomes.
  • Previous methods for cast transfer may introduce positional inaccuracies, impacting restoration fit.

Purpose of the Study:

  • To evaluate the positional accuracy of dental casts transferred between calibrated articulators.
  • To determine if calibrated articulators (Denar D5-A and Mark II) allow for interchangeable use without compromising accuracy.

Main Methods:

  • Twelve Denar D5-A and Mark II articulators were calibrated using the Denar Field Inspection Gage.
  • Silicone interocclusal records and the split cast method were employed to assess positional accuracy.

Related Experiment Videos

  • Three independent observers performed the cast transfer and evaluation process.

    • Main Results:

    • Calibrated articulators demonstrated no significant loss of positional accuracy when transferring mounted casts.
    • The interchangeability of casts between calibrated articulators was confirmed by the observers.
    • The Denar Field Inspection Gage effectively facilitated accurate calibration for reliable transfer.

    Conclusions:

    • Calibrated dental articulators can be reliably interchanged for transferring mounted casts.
    • This finding supports the use of calibrated articulators to maintain positional accuracy in dental procedures.
    • The study validates a method for ensuring precision in prosthodontic workflows.