The influence of incisal malocclusion on the social attractiveness of young adults in Finland.

The aim of this study was to investigate the importance of dentofacial appearance on the perceived social attractiveness of young adults in Finland. The dental arrangements studied were incisal crowding, median diastema, protruding incisors, and ideal incisal occlusion. Facial photographs of six young adults were obtained and modified, so that for each face, four different dental arrangements could be portrayed. The photographs were shown to 1007 Finnish students to estimate social and personal characteristics of the person in the photograph. Dental arrangement had a significant influence on the perceived beauty and success of the persons. Test faces with incisal crowding and median diastema were ranked as significantly less intelligent, beautiful and sexually attractive, and judged to belong to lower social class than the same faces with ideal occlusion. Protruded incisors did not affect the ratings compared to ideal occlusion. On the average, female test faces were judged more favourably than the male ones. The results indicate that among Finnish students conspicuous incisal crowding or spacing represent a social disadvantage compared to normal or protruded incisors.