Effects of two different removable functional appliances on depth of the posterior airway space

• Verfasst von: Hourfar, Jan [VerfasserIn]
• Titel: Effects of two different removable functional appliances on depth of the posterior airway space
• Titelzusatz: a retrospective cephalometric study
• Paralleltitel: Effekte zweier verschiedener herausnehmbarer funktionskieferorthopädischer Apparaturen auf die Tiefe desextrathorakalen Luftraums
• Paralleltitelzusatz: eine retrospektive kephalometrische Studie
• Verf.angabe: Jan Hourfar, Gero Stefan Michael Kinzinger, Luisa Katharina Meißner, Jörg Alexander Lisson
• Jahr: 2017
• Jahr des Originals: 2016
• Umfang: 10 S.
• Fussnoten: Published online: 28 November 2016 ; Gesehen am 12.09.2018
• Schrift/Sprache: Zusammenfassung in englischer und deutscher Sprache, Text englisch
• Titel Quelle: Enthalten in: Journal of orofacial orthopedics
• Ort Quelle: München : Urban & Vogel, 1931
• Jahr Quelle: 2017
• Band/Heft Quelle: 78(2017), 2, Seite 166-175
• ISSN Quelle: 1615-6714
• DOI: doi:10.1007/s00056-016-0071-z
• Datenträger: Online-Ressource
• Sprache: eng ger
• Sach-SW: Activator
• Sach-SW: Aktivator
• Sach-SW: Angle Class II
• Sach-SW: Angle Klasse II
• Sach-SW: Cephalometric study
• Sach-SW: Pharyngeal depth
• Sach-SW: Röntgenkephalometrische Studie
• Sach-SW: S-II-Appliance
• Sach-SW: Sander-II-Apparatur
• Sach-SW: Tiefe des extrathorakalen Luftraums
• K10plus-PPN: 158088332X

Abstract

Objectives: Aim of the study was the comparison of treatment effects upon pharyngeal depth in patients treated with either (1) S-II-appliance or (2) Activator. Methods: Pre- and posttreatment lateral cephalograms of 73 patients were analyzed using a customized set of measurements. According to predefined criteria, patients were either treated with S-II-appliance or Activator. Pharyngeal depth was assessed from cranial to caudal at six levels (P1 to P6). Paired t tests were used for intragroup and t tests for independent samples for intergroup comparisons. Results were considered statistically significant at p ≤ 0.05.Results37 (22 female, 15 male) patients were treated with the S-II-appliance (mean pretreatment age 11.1 ± 1.07 years), and 36 (20 female, 16 male) patients with an Activator (mean pretreatment age 11.3 ± 1.12 years). Mean treatment time was 14 months for the S-II-appliance and 12 months for the Activator. Most measurements at the different levels showed an average increase ranging from approximately 0.5 mm to almost 2 mm. Changes were more pronounced in S-II patients. In contrast to intergroup comparisons, some intragroup comparisons revealed statistically significant differences at levels P5 (p = 0.0062) and P6 (p = 0.0155) in S-II patients and at P1-level (p = 0.0197) in Activator patients. Conclusions: Both appliances similarly led to an increase of the pharyngeal depth. The sites of statistically significant changes differed.