Development and validation of a photonumeric grading scale for assessing lip volume and thickness

Area of Science:

• Dermatology
• Aesthetic Medicine
• Medical Imaging

Background:

• A validated grading scale is needed for assessing lip volume and thickness.
• Current methods lack objectivity in evaluating lip characteristics.

Purpose of the Study:

• To develop and validate a photographic grading scale for lip volume and thickness.
• To provide clinicians with an objective tool for managing lip rejuvenation.
• To enable precise evaluation of treatment efficacy and longevity.

Main Methods:

• Development and validation of a photographic grading scale using established dermatological criteria.
• Utilized digital parallel-polarized light imaging for assessment.
• Ensured good inter- and intra-grader consistency.

Main Results:

• The photographic grading scale demonstrated validity and reliability in assessing lip volume and thickness.
• Scale validity was confirmed through correlation with clinical assessments and 3D measurements.
• High inter- and intra-grader consistency was achieved.

Conclusions:

• The validated lip-volume/thickness grading scale standardizes clinical evaluations in trials.
• This scale aids in quantifying results and measuring the longevity of lip rejuvenation procedures.
• It serves as a valuable tool for dermal filler efficacy assessment.