Influence of anterior buccolingual crown inclination on the esthetic perception of the frontal smile by dentists, orthodontists, and laypersons: the importance of connector parallelism

In this study, we highlight the importance of proper buccolingual crown inclination and parallelism of connectors during treatment. The OR group showed the most critical assessment of smile esthetics related to buccolingual crown inclination variations. Lower scores were noted for greater deformations and negative inclinations in both the LI/LI and C/C groups.