Long-term stability of miniscrew anchored maxillary molar distalization in Class II treatment.
Class II malocclusion
Miniscrew anchorage
Molar distalization
Relapse
Stability
Total arch distalization
Journal
The Angle orthodontist
ISSN: 1945-7103
Titre abrégé: Angle Orthod
Pays: United States
ID NLM: 0370550
Informations de publication
Date de publication:
01 05 2020
01 05 2020
Historique:
accepted:
01
11
2019
received:
01
05
2019
entrez:
30
12
2020
pubmed:
31
12
2020
medline:
2
2
2021
Statut:
ppublish
Résumé
To investigate treatment stability of miniscrew-anchored maxillary distalization in Class II malocclusion. This retrospective study included a distalization (n = 19) and a control (n = 19) group; a patient group with minor corrections served the control. Lateral cephalograms of 38 adult patients were taken before (T0), immediately after (T1), and 3-4 years after (T2) treatment. Horizontal and vertical movement and tipping of the maxillary first molars (U6) and central incisors (U1) were measured along with skeletal craniofacial parameters at three time points to compare the two groups regarding the achieved treatment effects and their stability. Total arch distalization therapy led to 4.2 mm of distal movement of U6 without distal crown tipping (0.6° of axis change) and 3.3° of occlusal plane steepening. Over an average retention period of 42 months, maxillary total arch distalization provided high stability of treatment results, showing the same amount of mesial movement (0.7 mm) as the control group. In Class II treatment, miniscrew-anchored maxillary total arch distalization can provide stable distal movement of the maxillary first molars and central incisors.
Identifiants
pubmed: 33378427
pii: 430016
doi: 10.2319/051619-335.1
pmc: PMC8032303
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
362-368Informations de copyright
© 2020 by The EH Angle Education and Research Foundation, Inc.
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