Effects of Class II elastics during growth on the functional occlusal plane according to skeletal pattern and extraction vs nonextraction.
Class II elastics
Extraction
Growth
Nonextraction
Occlusal plane
Skeletal pattern
Journal
The Angle orthodontist
ISSN: 1945-7103
Titre abrégé: Angle Orthod
Pays: United States
ID NLM: 0370550
Informations de publication
Date de publication:
01 01 2023
01 01 2023
Historique:
accepted:
01
10
2021
received:
01
05
2021
pubmed:
21
12
2021
medline:
27
12
2022
entrez:
20
12
2021
Statut:
ppublish
Résumé
To investigate the effect of Class II intermaxillary elastics on the functional occlusal plane (FOP) of growing patients. A total of 50 participants aged 11 to 16 years were selected from a university clinic archive >1-year after treatment and after undergoing 6 months of Class II elastic wear, taking pretreatment (T0) and posttreatment (T1) lateral cephalometric radiographs, and consenting to participate at recall (T2). Participants were divided into 3 groups according to skeletal pattern or into 2 groups according to treatment with extraction (E) or nonextraction (NE). Angular changes of FOP relative to the Sella-Nasion (SN), mandibular plane (MP), and Frankfort horizontal (FH) were compared within and between groups. A statistically significant reduction of FOP-SN/FH, but not of FOP-MP, was found from T0-T1-T2 when all patients were grouped together. FOP-SN/MP/FH was significantly the largest in the patients with a hyperdivergent skeletal pattern, but lowest in the patients with a hypodivergent skeletal pattern at T0, T1, and T2 (P < .032). FOP-MP at T0-T2 was statistically larger in group E than in group NE (P < .02). No differences were found for FOP changes (change before treatment minus after treatment and change after treatment minus 1 year after treatment) between different skeletal patterns (P > .433) and treatment groups (P > .193). Use of Class II elastics during the growth period was not found to show adverse effects on FOP rotation. Neither skeletal pattern nor treatment modality differed in the response to Class II elastics with regard to FOP changes. Individual patient growth pattern must be taken into consideration when treatment planning the use of Class II elastics. Orthodontists should take into account individual skeletal and growth patterns while using Class II elastics.
Identifiants
pubmed: 34929025
pii: 475637
doi: 10.2319/051521-381.1
pmc: PMC9797140
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
19-25Informations de copyright
© 2023 by The EH Angle Education and Research Foundation, Inc.
Références
J Oral Rehabil. 1978 Apr;5(2):159-66
pubmed: 280630
Am J Orthod Dentofacial Orthop. 1995 May;107(5):548-58
pubmed: 7733065
J Prosthet Dent. 2012 Dec;108(6):354-61
pubmed: 23217467
Am J Orthod Dentofacial Orthop. 2000 Dec;118(6):641-8
pubmed: 11113799
Semin Orthod. 1997 Dec;3(4):222-31
pubmed: 9573884
Eur J Orthod. 1994 Dec;16(6):501-9
pubmed: 7720795
Am J Orthod Dentofacial Orthop. 2006 Aug;130(2):244-52
pubmed: 16905071
Am J Orthod Dentofacial Orthop. 1997 Feb;111(2):184-8
pubmed: 9057618
Am J Orthod Dentofacial Orthop. 1999 Jul;116(1):41-5
pubmed: 10393579
Prog Orthod. 2014 Jun 25;15(1):41
pubmed: 25033937
Angle Orthod. 1967 Oct;37(4):285-97
pubmed: 5234006
J Orofac Orthop. 2012 Sep;73(5):377-86
pubmed: 22955576
Angle Orthod. 1970 Oct;40(4):319-28
pubmed: 5272407
Coll Antropol. 2000 Jun;24(1):145-50
pubmed: 10895541
Am J Orthod Dentofacial Orthop. 1990 May;97(5):422-6
pubmed: 2333856
Am J Orthod Dentofacial Orthop. 1998 Oct;114(4):430-6
pubmed: 9790328
Eur J Orthod. 1996 Feb;18(1):27-40
pubmed: 8746175
Am J Orthod Dentofacial Orthop. 2008 Jul;134(1):125-37
pubmed: 18617112
Am J Orthod Dentofacial Orthop. 1998 Jun;113(6):661-73
pubmed: 9637570
Am J Orthod Dentofacial Orthop. 2008 Nov;134(5):602.e1-11; discussion 602-3
pubmed: 18984389
Eur J Dent. 2020 Jul;14(3):429-434
pubmed: 32590869
J Oral Rehabil. 1997 Sep;24(9):652-7
pubmed: 9357745
Angle Orthod. 2005 Mar;75(2):177-82
pubmed: 15825779
Angle Orthod. 1968 Jan;38(1):19-39
pubmed: 5236047
Am J Orthod Dentofacial Orthop. 1999 Dec;116(6):678-86
pubmed: 10587603
Eur J Orthod. 1993 Dec;15(6):493-501
pubmed: 8112415
Angle Orthod. 2012 Mar;82(2):218-23
pubmed: 21932940
Am J Orthod. 1951 Jul;37(7):508-21
pubmed: 14846907
Angle Orthod. 1950 Jul;20(3):137-46
pubmed: 14790323
Am J Orthod Dentofacial Orthop. 1994 Jan;105(1):25-34
pubmed: 8291490
Am J Orthod Dentofacial Orthop. 1995 Mar;107(3):276-85
pubmed: 7879760
Int J Oral Sci. 2012 Mar;4(1):34-7
pubmed: 22241375
Am J Orthod Dentofacial Orthop. 2003 Oct;124(4):379-86
pubmed: 14560267
Am J Orthod Dentofacial Orthop. 2000 Dec;118(6):658-61
pubmed: 11113801
Angle Orthod. 1971 Jul;41(3):219-29
pubmed: 5283670
Am J Orthod Dentofacial Orthop. 1990 Aug;98(2):176-83
pubmed: 2198802