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Repeatability of the mandibular retruded position.

G Hellsing, J S McWilliam

Journal of Oral Rehabilitation

|January 1, 1985

Summary

The one-handed push-back technique accurately and consistently records centric jaw relation. This dental method ensures reliable repositioning of the condyles in the glenoid fossa for repeatable jaw relation measurements.

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Area of Science:

Dentistry
Dental Occlusion
Temporomandibular Joint (TMJ) Biomechanics

Background:

Accurate recording of centric jaw relation is crucial for dental diagnostics and treatment.
Existing methods for recording centric relation may have limitations in repeatability.
The one-handed push-back technique is a proposed method for capturing this vital occlusal relationship.

Purpose of the Study:

To evaluate the repeatability of centric jaw relation recordings using the one-handed push-back technique.
To assess the accuracy and consistency of condylar repositioning with this specific technique.

Main Methods:

Six subjects participated in the study.
Centric jaw relation was recorded using the one-handed push-back technique.
Condylar positions were radiographically captured using cold cure acrylic indices on two separate occasions, one week apart.
Subtraction radiography was employed to compare condylar positions between recordings.

Main Results:

Radiographic analysis demonstrated no statistically significant intra-individual differences in condylar positions.
The results indicate high consistency in jaw relation registration.
The technique reliably positioned the condyles within the glenoid fossa.

Conclusions:

The one-handed push-back technique provides accurate and repeatable centric jaw relation recordings.
This method ensures consistent repositioning of the condyles in the glenoid fossa.
The findings support the clinical utility of the push-back technique in dental practice.

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