Esthetic Evaluations of Maxillary Anterior Teeth

Maxillary anterior teeth occupy a pivotal role in facial harmony, speech and social interaction. Their shape, alignment and relationship to the surrounding soft tissues determine smile attractiveness and influence self‐esteem across diverse cultures. Esthetic evaluation encompasses objective measurements—such as tooth width‐to‐height ratios, incisal edge position and golden proportions—and subjective appraisals by dental professionals and lay observers. Modern practice integrates digital imaging, three‐dimensional scanning and psychometric rating scales to quantify features like gingival display, black triangles and buccal corridor width. Interdisciplinary collaboration between orthodontics, prosthodontics and periodontics refines treatment planning, ensuring that restorative or orthodontic interventions achieve a balance of white (tooth) and pink (gingival) esthetics. As the global demand for cosmetic dentistry rises, standardising evaluation criteria and understanding perceptual differences among age groups, educational backgrounds and personality traits have become central to evidence‐based care.

Research from Nature Portfolio

Recent studies have explored the impact of interdental spacing on smile perception and the anthropometric foundations of dental proportions. One analytical study examined the perception of black triangles adjacent to maxillary incisors, revealing that larger embrasure spaces markedly reduce attractiveness ratings among both dental professionals and laypeople. Personality dimensions such as openness and conscientiousness were shown to modulate tolerance for these defects, highlighting the interplay between individual traits and esthetic assessment. Another investigation applied virtual photogrammetry and the golden ratio framework to a classical sculpture, demonstrating that proportionate relationships between interpupillary distance, nasal base and upper incisor dimensions conform to long‐standing canons of beauty. Although conducted on a historical artefact, this work underscores the universality of certain dental proportions and their enduring influence on contemporary esthetic standards.

Esthetic Evaluations of Maxillary Anterior Teeth publication trend

The graph below shows the total number of articles in esthetic evaluations of maxillary anterior teeth across all publications each year (not limited to Nature Index journals).

Technical terms

Incisal edge: The biting surface of an anterior tooth, whose position influences smile line and symmetry.

Gingival display: The vertical height of exposed gum tissue above maxillary anterior teeth during smiling.

Smile arc: The curvature formed by the incisal edges of maxillary anterior teeth relative to the lower lip.

Black triangle: A triangular gap between adjacent teeth at the gingival margin caused by papillary loss or spacing.

Golden proportion: A mathematical ratio (~1.618) applied to perceived widths of maxillary anterior teeth to achieve harmonious proportions.

Buccal corridor: The lateral dark space visible between the corners of the lips and the buccal surfaces of posterior teeth when smiling.

References

1. The effect of orthodontic treatment on smile attractiveness: a systematic review. Progress in Orthodontics (2023).
2. The golden section in the art of ancient Greece: an anthropometric study of the young warrior of Riace. Humanities and Social Sciences Communications (2024).
3. Relationships between perception of black triangles appearance, personality factors and level of education. Scientific Reports (2024).
4. Smile aesthetics as perceived by dental students: a cross-sectional study. BMC Oral Health (2018).