Stability of maxillary interincisor diastema closure after extraction orthodontic treatment.
Diastema
Orthodontic space closure
Stability
Journal
The Angle orthodontist
ISSN: 1945-7103
Titre abrégé: Angle Orthod
Pays: United States
ID NLM: 0370550
Informations de publication
Date de publication:
01 09 2020
01 09 2020
Historique:
accepted:
01
03
2020
received:
01
08
2019
entrez:
30
12
2020
pubmed:
31
12
2020
medline:
2
2
2021
Statut:
ppublish
Résumé
To evaluate the stability of maxillary interincisor diastema closure and the relationship between space relapse and interincisor diastema width, overjet, overbite, angulations between adjacent maxillary anterior teeth and presence of intermaxillary osseous cleft after orthodontic treatment with extractions. Twenty-four individuals with a maxillary interincisor diastema pretreatment, treated with maxillary first premolar extractions were evaluated. Dental casts and panoramic radiographs taken at pretreatment (T1), posttreatment (T2), and posttreatment follow-up (T3) were assessed. Periapical radiographs at T1 and T2 were also evaluated. Diastema relapse was assumed when T3-T2 interincisor space change was greater than zero. Diastema relapse was considered clinically significant when it was at least 0.50 mm. Data were analyzed using repeated-measures analysis of variance followed by post hoc Tukey tests or Friedman followed by Wilcoxon tests. T-test or Mann-Whitney U-test, Pearson correlation coefficient, and multiple linear regression analyses were also performed. No statistically significant relapse of maxillary interincisor diastemas was found. The percentage of clinically significant relapse of the maxillary interincisor diastemas was 27.78%. Specifically, for the interincisor midline diastema, it was 8.33%. Maxillary interincisor diastema closure showed no statistically significant relapse after orthodontic treatment with premolar extractions. Clinically significant stability for maxillary interincisor diastema closure was 72.22% and, specifically, for interincisor midline diastema closure, it was 91.67%.
Identifiants
pubmed: 33378481
pii: 435950
doi: 10.2319/080619-516
pmc: PMC8032265
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
627-633Informations de copyright
© 2020 by The EH Angle Education and Research Foundation, Inc.
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