According to recent findings, the rarest smile style is identified as the complex smile.
This distinct type of smile stands out due to its specific characteristics and the intricate muscle engagement involved. Unlike more common smiles, the complex smile is less frequently observed.
Characteristics of the Complex Smile
Based on analysis of smile styles, the complex smile requires significant muscular activity. Key features include:
- Active Muscle Use: It involves the more active use of three distinct muscle groups associated with smiling. This suggests a greater range or intensity of muscle movement compared to other smile types.
- Wide Appearance: The complex smile is described as being particularly wide.
- Lower Teeth Visibility: A defining characteristic is that it shows off more of the lower teeth compared to the commissure or cuspid smile styles.
This combination of extensive muscle activation, width, and lower teeth visibility makes the complex smile a unique and the rarest form of smiling identified in smile style analysis.
