Spontaneous Transversal Changes of Lower Arch Following Palatal Skeletal Expansion
Pesqui. bras. odontopediatria clín. integr
; 21(supl.1): e0019, 2021. tab, graf
Article
em En
| LILACS, BBO
| ID: biblio-1340343
Biblioteca responsável:
BR1264.1
ABSTRACT
ABSTRACT Objective:
To evaluate how the lower arch spontaneously change after upper rapid palatal expansion in a group of patients with transversal skeletal deficit. Material andMethods:
Twenty-four patients treated by the same orthodontist with a rapid palatal expander (RPE) bounded on a deciduous molar have been selected. The sample was divided into two groups no treatment was provided for group one, while group two was treated using a lip bumper or Schwarz appliance. For each patient, dental casts were collected when the RPE was bounded (T0) and at the end of treatment, 9 months ± 3 months later (T1). Each outcome was analyzed, providing descriptive statistics, main effects significance tests and post-hoc analyses with the objective to evaluate the variations between pre-treatment (TO) and post-treatment (T1) of each of them.Results:
If the linear measurements are considered, a significant beneficial effect on both arches is observed. However, the upper arch always shows a major increase of all values at T1 with respect to the lower arch. Even though the post-hoc tables indicate that time differences are all statistically significant across considered partitions, the lower arch's increase is more pronounced in group two, where patients were treated in both arches. If the angular measurements are concerned, the increase of lingual crown inclination was found in all patients, independently from the type of treatment in lower arch.Conclusion:
All patients show normalization of upper diameters, regardless of whether the lower arch was treated or not.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Ortodontia
/
Técnica de Expansão Palatina
/
Aparelhos de Tração Extrabucal
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Ortodontistas
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Má Oclusão Classe III de Angle
Tipo de estudo:
Evaluation_studies
/
Observational_studies
Limite:
Female
/
Humans
/
Male
País/Região como assunto:
Europa
Idioma:
En
Revista:
Brazilian Research in Pediatric Dentistry and Integrated Clinic
/
Pesqui. bras. odontopediatria clín. integr
/
Pesquisa brasileira em odontopediatria e clínica integrada (Impresso)
/
Pesquisa brasileira em odontopediatria e clínica integrada (Online)
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Itália