Change in alveolar bone level of mandibular second and third molars after second molar protraction into missing first molar or second premolar space.
Journal
European journal of orthodontics
ISSN: 1460-2210
Titre abrégé: Eur J Orthod
Pays: England
ID NLM: 7909010
Informations de publication
Date de publication:
21 Sep 2019
21 Sep 2019
Historique:
pubmed:
5
2
2019
medline:
25
9
2020
entrez:
5
2
2019
Statut:
ppublish
Résumé
To investigate the factors associated with the change in alveolar bone level of mandibular second and third molars after second molar protraction into the space of the missing first molar (L6) or second premolar (LE). Fifty-one patients in whom space of the missing L6 or LE was treated with second molar protraction (13 males, 38 females, mean age 19.6 ± 4.7 years) from 2003 to 2015 were included. The alveolar bone level and position and angulation of the mandibular second and third molars were measured in panoramic radiographs at pre-treatment (T1), and after the alignment of the third molars following second molar protraction (T2). Factors associated with alveolar bone loss on the distal aspect of the mandibular second molars were assessed using linear regression analysis. Age at T1 (P < 0.001) and third molar angulation at T1 (P = 0.002) were significant factors for the prediction of alveolar bone level distal to the second molars. This study used two-dimensional panoramic radiographs, and we could observe only the interproximal bone level. After second molar protraction into the missing first molar or second premolar space, mandibular second molars may exhibit alveolar bone resorption in the distal root in older patients and in those with mesially tilted third molars before treatment.
Identifiants
pubmed: 30715310
pii: 5305945
doi: 10.1093/ejo/cjz001
pmc: PMC6754516
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
513-518Informations de copyright
© The Author(s) 2019. Published by Oxford University Press on behalf of the European Orthodontic Society.
Références
Am J Orthod. 1976 Aug;70(2):154-72
pubmed: 1066052
Am J Orthod Dentofacial Orthop. 2001 Mar;119(3):226-38
pubmed: 11244416
J Clin Orthod. 2003 Oct;37(10):575-9
pubmed: 14617846
Am J Orthod Dentofacial Orthop. 2006 Jan;129(1):36-41
pubmed: 16443476
Am J Orthod Dentofacial Orthop. 2006 Mar;129(3):337-44
pubmed: 16527628
Am J Orthod Dentofacial Orthop. 2006 Nov;130(5):634-8
pubmed: 17110261
J Clin Orthod. 2008 Jun;42(6):351-5; quiz 340
pubmed: 18791292
Am J Orthod Dentofacial Orthop. 2008 Oct;134(4):583-91
pubmed: 18929277
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009 Feb;107(2):e14-20
pubmed: 19138633
Am J Orthod Dentofacial Orthop. 2010 Mar;137(3):346-53
pubmed: 20197171
Eur J Orthod. 2013 Jun;35(3):277-85
pubmed: 21367817
Am J Orthod Dentofacial Orthop. 2011 Dec;140(6):869-78
pubmed: 22133953
Eur J Orthod. 2013 Aug;35(4):460-6
pubmed: 22474212
Am J Orthod Dentofacial Orthop. 2012 Jun;141(6):783-95
pubmed: 22640680
Eur J Orthod. 2015 Feb;37(1):87-94
pubmed: 25074244
Angle Orthod. 2016 Jul;86(4):565-70
pubmed: 26438976
Angle Orthod. 2017 Jul;87(4):563-569
pubmed: 28206811
Am J Orthod Dentofacial Orthop. 2017 Mar;151(3):572-582
pubmed: 28257742
Eur J Orthod. 2018 Apr 6;40(2):185-192
pubmed: 28637273
Prog Orthod. 2018 Jan 8;19(1):1
pubmed: 29308540
Prog Orthod. 2018 Jun 25;19(1):18
pubmed: 29938297
Angle Orthod. 1974 Apr;44(2):141-5
pubmed: 4524470
Am J Orthod. 1984 Jun;85(6):457-69
pubmed: 6587780
Eur J Orthod. 1996 Dec;18(6):589-600
pubmed: 9009423