Introduction: The aim of this study was to apply low-dose computed tomography (CT) to evaluate treatment and posttreatment effects produced by rapid maxillary expansion (RME) at the levels of the midpalatal suture and the pterygoid processes. Methods: A sample of 17 subjects (7 boys, 10 girls; mean age, 11.2 years) was analyzed. Multi-slice CT scans were taken before RME, at the end of the active expansion phase, and after a retention period of 6 months. Statistical analysis was performed with ANOVA for repeated measures with post-hoc tests. Results: The amounts of opening of the midpalatal suture during the active phase of expansion were 3.01, 2.17, and 1.15 mm for the anterior, middle, and posterior suture widths, respectively. Pterygoid width also showed a statistically significant increase (1.49 mm). In the postretention period, all transverse measurements had significant decreases except for pterygoid width. Conclusions: At the end of the retention phase after RME therapy, the transverse width of the midpalatal suture was similar to the pretreatment width, whereas the width between the pterygoid processes was significantly increased.

Lione, R., Ballanti, F., Franchi, L., Baccetti, T., Cozza, P. (2008). Treatment and posttreatment skeletal effects of rapid maxillary expansion studied with low-dose computed tomography in growing subjects. AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, 134(3), 389-392 [10.1016/j.ajodo.2008.05.011].

Treatment and posttreatment skeletal effects of rapid maxillary expansion studied with low-dose computed tomography in growing subjects

Lione R;COZZA, PAOLA
2008-01-01

Abstract

Introduction: The aim of this study was to apply low-dose computed tomography (CT) to evaluate treatment and posttreatment effects produced by rapid maxillary expansion (RME) at the levels of the midpalatal suture and the pterygoid processes. Methods: A sample of 17 subjects (7 boys, 10 girls; mean age, 11.2 years) was analyzed. Multi-slice CT scans were taken before RME, at the end of the active expansion phase, and after a retention period of 6 months. Statistical analysis was performed with ANOVA for repeated measures with post-hoc tests. Results: The amounts of opening of the midpalatal suture during the active phase of expansion were 3.01, 2.17, and 1.15 mm for the anterior, middle, and posterior suture widths, respectively. Pterygoid width also showed a statistically significant increase (1.49 mm). In the postretention period, all transverse measurements had significant decreases except for pterygoid width. Conclusions: At the end of the retention phase after RME therapy, the transverse width of the midpalatal suture was similar to the pretreatment width, whereas the width between the pterygoid processes was significantly increased.
2008
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore MED/28 - MALATTIE ODONTOSTOMATOLOGICHE
English
Con Impact Factor ISI
adolescent; analysis of variance; article; child; computer assisted tomography; cranial suture; evaluation; female; hard palate; human; instrumentation; male; maxilla; methodology; nonparametric test; orthodontic device; orthodontics; radiation dose; radiography; sphenoid; technique; treatment outcome; Adolescent; Analysis of Variance; Child; Cranial Sutures; Female; Humans; Male; Maxilla; Methods; Orthodontic Appliances; Palatal Expansion Technique; Palate, Hard; Radiation Dosage; Sphenoid Bone; Statistics, Nonparametric; Tomography, X-Ray Computed; Treatment Outcome
Lione, R., Ballanti, F., Franchi, L., Baccetti, T., Cozza, P. (2008). Treatment and posttreatment skeletal effects of rapid maxillary expansion studied with low-dose computed tomography in growing subjects. AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, 134(3), 389-392 [10.1016/j.ajodo.2008.05.011].
Lione, R; Ballanti, F; Franchi, L; Baccetti, T; Cozza, P
Articolo su rivista
File in questo prodotto:
File Dimensione Formato  
Lione R 2008.pdf

accesso aperto

Dimensione 362.59 kB
Formato Adobe PDF
362.59 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/38385
Citazioni
  • ???jsp.display-item.citation.pmc??? 20
  • Scopus 76
  • ???jsp.display-item.citation.isi??? 63
social impact