Comparison of two protocols for early treatment of dentoskeletal Class III malocclusion: Modified SEC III versus RME/FM.
Class III dentoskeletal malocclusion
RME/FM protocol
early treatment
mixed dentition
modified SEC III protocol
Journal
Orthodontics & craniofacial research
ISSN: 1601-6343
Titre abrégé: Orthod Craniofac Res
Pays: England
ID NLM: 101144387
Informations de publication
Date de publication:
Aug 2021
Aug 2021
Historique:
revised:
20
10
2020
received:
09
09
2020
accepted:
01
11
2020
pubmed:
13
11
2020
medline:
29
7
2021
entrez:
12
11
2020
Statut:
ppublish
Résumé
To compare the short-term cephalometric outcomes of the protocols modified splints, Class III elastics, chincup (SEC III) and rapid maxillary expansion and facial mask (RME/FM) for the early treatment of growing subjects with Class III dentoskeletal malocclusion. This retrospective observational study included 20 patients (11 males, nine females) treated with the modified SEC III protocol and 31 patients (16 males, 15 females) treated with the RME/FM one. The sample was evaluated before (T1, mean age 7.9 ± 1.0 years) and at the end of treatment (T2, mean age 9.0 ± 1.0 years). Statistical comparisons between the two groups were performed with independent sample t tests. Both the modified SEC III and the RME/FM sample groups showed significantly favourable effects in terms of maxillary advancement (SNA +1.3° and +1.5°, respectively), control of mandibular projection (SNB -0.5° and -0.8°, respectively), and intermaxillary relationships (ANB +1.8° and +2.3°, respectively; Wits +3.4 and +1.9 mm, respectively). The modified SEC III group showed a statistically significant greater control in the intermaxillary divergency considering the SN to Pal. Pl. (P < 0.006) and Pal. Pl. to Mand. Pl. angle (P < 0.002) with a difference of 2.3 mm between the two groups. The main limitations of this study are its retrospective nature and the short-term outcomes. Early treatment of growing patients with dentoskeletal Class III disharmonies is efficient using either modified SEC III or RME/FM protocols. However, a higher vertical control is achieved with the modified SEC III.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
344-350Informations de copyright
© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
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