Three-dimensional analysis of lip changes in response to simulated maxillary incisor advancement.
3D
Incisor position
Lips
Perioral muscles
Stereophotogrammetry
Journal
The Angle orthodontist
ISSN: 1945-7103
Titre abrégé: Angle Orthod
Pays: United States
ID NLM: 0370550
Informations de publication
Date de publication:
01 2020
01 2020
Historique:
pubmed:
10
8
2019
medline:
15
8
2020
entrez:
10
8
2019
Statut:
ppublish
Résumé
To assess the immediate response of lips in three dimensions (3D) resulting from simulated maxillary incisor advancement. Incremental maxillary incisor advancement was simulated by placing wax of increasing thickness (+2 mm, +4 mm, +6 mm) on the incisors of 20 participants, and the induced lip changes were recorded using 3D stereophotogrammetry. The induced displacement of lip landmarks was quantified using 3D image analysis software. Data were analyzed using a repeated-measures analysis of variance (ANOVA) after adjusting for age and sex of the study participants. A large interindividual variation in lip response to simulated incisor advancement was observed. A significant overall effect on 3D lip changes was found for increasing values of simulated incisor advancement ( Maxillary incisor advancement significantly affects upper lip change in three planes of space: particularly the anteroposterior plane, in which the response to simulated advancement appears to be nonlinear.
Identifiants
pubmed: 31398067
doi: 10.2319/022219-134.1
pmc: PMC8087058
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
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