Imaging Studies
See the list below:
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Photodocumentation
This is a basic need for all facial plastic surgery procedures.
In chin analysis, photography can be helpful to evaluate the patient for chin retrusion. The chin should be considered in its relation to the face shape and length and in reference to the nose. The basic views, full face, oblique, profile, and base, are adequate for this evaluation.
From the lateral view, the 0° meridian and other types of analysis can be used to determine the grade of retrusion and the desired augmentation. The lateral view is emphasized, but the full-face view is mandatory to evaluate chin width.
Photographs should be taken with the patient smiling and in repose. This provides additional information and documentation of labial competence.
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Cephalometric study
This is an excellent method to document skeletal configurations.
Population-based comparison data are available.
This analysis may be more applicable to the osteoplastic technique.
Staging
See the list below:
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Gonzalez-Ulloa bases his staging system on the 0° meridian. [6]
First-degree retraction describes the pogonion at less than 10 mm behind the 0° meridian.
Second-degree retraction is in the range of 10-20 mm.
Third-degree retraction is more than 20 mm.
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Graphic illustration of chin implant position.
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Before and after.
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Before and after.
