[Current status and research advances in computational smile aesthetics]

Computational aesthetics, a key subfield of computer vision, seeks to simulate human aesthetic cognition and enable machines to autonomously perceive and evaluate visual beauty. While it has found increasing application in fields such as plastic surgery and medical cosmetology, its application in the field of smile aesthetics remains limited. Currently, methods for assessing smile aesthetics rely predominantly on subjective evaluation and limited objective measurements, lacking a systematic framework that integrates multi-dimensional aesthetic features with weighted significance. This review outlines the foundational principles of computational aesthetics and surveys its current applications in medical aesthetics, with a focus on its potential application in smile aesthetics. The aim is to provide a reference for developing the next generation of assessment systems for smile aesthetics.