LONDON, UK: The position, shape and colour of maxillary incisors enhance the aesthetics of the smile. Researchers in the UK have now investigated whether varying the incisor shapes in women in particular can influence individual perception of smile aesthetics. They determined that the tapered-ovoid tooth form is perceived to be more desirable than the square tooth form—a finding that dental professionals should keep in mind when reconstructing these teeth.
In the study, 30 dentists, 30 technicians and 30 patients rated a photograph of a female smile displaying maxillary teeth, only for attractiveness. The photograph was digitally altered to produce five different incisor shapes.
Overall, the tapered-ovoid maxillary incisor shape was perceived to be the most attractive smile (50 per cent). About 70 per cent of the dentists, 50 per cent of the dental technicians and 30 per cent of the patients said that this was the most attractive shape. Maxillary incisors of ovoid shape were ranked the second most attractive overall (36.7 per cent) and the most attractive by the patients (56 per cent). Square-shaped maxillary incisors were perceived as the least attractive overall (43.3 per cent) and by the dentists (47 per cent), technicians (50 per cent) and patients (33 per cent).
The results also suggest that there is not one ideal incisor shape and that dental professionals are more critical than patients with respect to the shapes of maxillary incisors, the researchers concluded. In order to ensure that treatment outcomes meet patients’ expectations, dental professionals should thus consult with their patients about their individual perceptions of aesthetics during the planning phase.
The study, titled “The influence of varying maxillary incisor shape on perceived smile aesthetics”, was published in the July issue of the Journal of Dentistry. It was conducted at UCL Eastman Dental Institute in London.
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