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Occlusal height difference between maxillary central and lateral incisors: should aesthetic perception influence
Jan Hourfar1, Dirk Bister2, Björn Ludwig3
1Department of Orthodontics, Saarland University, Kirrberger Strasse 100, 66424, Homburg/Saar, Germany. hourfar@t-online.de.
Head & Face Medicine
|February 28, 2019
Summary
Media often displays a greater maxillary central-to-lateral occlusal height difference (OHD) than typically used in orthodontics. This finding suggests adjusting bracket placement protocols may enhance aesthetic outcomes in orthodontic treatment planning.
Area of Science:
- Dentistry
- Orthodontics
- Aesthetics
Background:
- Anecdotal evidence suggests a maxillary central-to-lateral occlusal height difference (OHD) exceeding 0.5 mm is prevalent in media.
- This OHD may influence patient perceptions of ideal dental aesthetics.
Purpose of the Study:
- To verify the prevalence of significant maxillary central-to-lateral OHD in various media.
- To discuss the implications of observed OHD for orthodontic treatment planning and aesthetic goals.
Main Methods:
- Photographs from dental literature, fashion advertisements, orthodontic publications, and orthodontic textbooks were analyzed.
- Maxillary central-to-lateral incisor occlusal height difference (OHD) was measured from images.
Main Results:
- Average OHDs were 1.39 mm (dental literature), 1.34 mm (fashion ads), 1.23 mm (orthodontics), and 0.62 mm (textbooks).
- Advertisement groups showed no significant difference in OHD, but textbook OHD was significantly lower (P < 0.001).
Conclusions:
- Media, particularly advertisements, favors a larger maxillary central-to-lateral OHD than standard orthodontic protocols.
- Considering patient-desired OHD and potentially modifying bracket placement protocols are recommended for achieving optimal aesthetic results in orthodontic treatment.
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