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Tooth shape preferences in an esthetic smile.

Kurt M Anderson1, Rolf G Behrents, Thomas McKinney

  • 1Texarkana, Tex, USA.

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
|October 11, 2005
PubMed
Summary

Dental professionals and laypeople have varying preferences for tooth shapes influencing smile aesthetics. While professionals favor specific incisor shapes, laypeople show less discrimination, highlighting differences in esthetic perception.

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Area of Science:

  • Dental Aesthetics
  • Restorative Dentistry
  • Orthodontics

Background:

  • Tooth shape significantly influences the overall esthetics of a smile.
  • Understanding esthetic preferences is crucial for dental professionals in treatment planning.

Purpose of the Study:

  • To investigate how different tooth shapes contribute to smile esthetics.
  • To compare the esthetic preferences of restorative dentists, orthodontists, and laypeople regarding tooth shape.

Main Methods:

  • Evaluated smiles from color photographs featuring three distinct maxillary incisor and canine shapes.
  • Presented images randomly to 120 restorative dentists, 102 laypeople, and 113 orthodontists for assessment.

Main Results:

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  • Orthodontists preferred round and square-round incisors for women; restorative dentists preferred round incisors.
  • Laypeople did not show a significant preference for incisor shapes.
  • All groups preferred square-round incisors for men.
  • Male judges tended to rate female images as more attractive than female judges did.

    • Conclusions:

    • Dental professionals and laypeople exhibit both shared and distinct preferences regarding tooth shape and smile esthetics.
    • Laypeople's preferences, while lacking consensus, differed from those of dental professionals.
    • Esthetic perceptions of tooth shape are influenced by professional background and gender.