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The Role of Facial Attractiveness in Borderline Cases of Dental Attractiveness Judged by IOTN

Johnson, Elizabeth K
http://rave.ohiolink.edu/etdc/view?acc_num=osu1457515181

Abstract Details

2016, Master of Science, Ohio State University, Dentistry.
Previous eye-tracking research has demonstrated that laypersons view the range of dental attractiveness levels differently depending upon facial attractiveness levels. How the borderline levels of dental attractiveness are viewed has not been evaluated in the context of facial attractiveness and compared to those with near ideal esthetics or those in definite need of orthodontic treatment according to the AC- IOTN scale. Objective: To determine the level of viewers’ visual attention in the borderline AC- IOTN treatment need category (levels 3-7) for individuals considered “attractive,” “average attractiveness,” or “unattractive.” Methods: Facial images of individuals of three different facial attractiveness levels were combined with 5 levels of dental attractiveness (dentitions representing AC-IOTN levels 3,4,5,6, and 7) using imaging software to form 30 composite images. Each image was viewed twice by 66 lay participants utilizing eye-tracking. Both the fixation density (number of fixations per facial area) and fixation duration (duration for each facial area) were quantified for each image viewed. Repeated-measures ANOVA was used to determine how fixation density and duration varied among six facial interest areas (chin, ear, eye, mouth, nose, and other). Results: Viewers demonstrated excellent to good reliability among the six interest areas (intraviewer reliability: 0.70 to 0.96; interviewer reliability: 0.56-0.93). Between IOTN 3 and 7 there was a trend for viewers of all facial attractiveness levels to show an increase in attention to the mouth. However, only with the attractive models were significant differences in fixation density and duration found between borderline levels with female viewers. Female viewers attended to different areas of the face than male viewers. Conclusions: The importance of dental attractiveness is amplified in facially attractive female models compared with average attractive and unattractive female models between near ideal to borderline-severe dentally unattractive levels.
Henry W. Fields (Advisor)
F. Michael Beck (Committee Member)
Allen R. Firestone (Committee Member)
Stephen F. Rosenstiel (Committee Member)
92 p.
Dentistry
Dental Attractiveness; Facial Attractiveness; Eye-tracking; IOTN; Index of Orthodontic Treatment Needs; Dental Esthetics

Recommended Citations

Citations

  • Johnson, E. K. (2016). The Role of Facial Attractiveness in Borderline Cases of Dental Attractiveness Judged by IOTN [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1457515181

    APA Style (7th edition)

  • Johnson, Elizabeth. The Role of Facial Attractiveness in Borderline Cases of Dental Attractiveness Judged by IOTN. 2016. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1457515181.

    MLA Style (8th edition)

  • Johnson, Elizabeth. "The Role of Facial Attractiveness in Borderline Cases of Dental Attractiveness Judged by IOTN." Master's thesis, Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1457515181

    Chicago Manual of Style (17th edition)

osu1457515181
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© 2016, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.