Research and clinical applications of facial analysis in dentistry

Abstract

Facial analysis in dentistry has evolved from traditional manual anthropometry to digital photogrammetry, offering a non-invasive, reproducible, and cost-effective method for clinical diagnosis and treatment planning. While historical esthetic standards frequently emphasize the “Golden Proportion” as a universal ideal, contemporary quantitative research demonstrates that these mathematical ratios are often absent in natural dentofacial architecture across diverse populations. Standardized photographic protocols using specific equipment and patient positioning—including alignment with the Frankfort horizontal and sagittal planes—are essential to minimize distortion and ensure accurate data acquisition. Analysis of frontal and lateral views facilitates the identification of bilateral symmetries and vertical proportions, which are critical for characterizing facial patterns and predicting tooth dimensions. Empirical evidence indicates significant correlations between specific facial landmarks, such as bizygomatic width and lower lip length, and the dimensions of dental structures like the maxillary central incisors. Establishing normative data across diverse ethnic groups remains a priority for optimizing surgical, orthodontic, and prosthetic interventions. Integrating objective photogrammetric data with subjective esthetic evaluations allows clinicians to achieve more predictable, natural results in oral rehabilitation. – AI-generated abstract.