Introduction: The aim of this study was to compare the effects of the quad-helix/ crib (Q-H/C) appliance and the open-bite bionator (OBB) in patients with open-bite malocclusions. The Q-H/C sample included 21 subjects, 15 girls and 6 boys. The average age for the Q-H/C group before treatment (T1) was 8.4 +/- 1.4 years, the mean age 1 year after active treatment (T2) was 10.9 +/- 1.6 years, and the mean duration of treatment was 2.6 years +/- 9 months. The OBB sample contained 20 subjects, 9 girls and 11 boys. The average ages were 8.3 years +/- 10 months at T1 and 10.8 +/- 1.5 years at T2. The mean duration of observation was 2.5 +/- 1.2 years. Lateral cephalograms were analyzed at T1 and T2. The T2 to T1 changes in the 2 groups were compared with a nonparametric test for independent samples (Mann-Whitney U test). The comparison between the 2 treatment protocols for skeletal open-bite malocclusion showed that the Q-H/C appliance is significantly more effective than the OBB for the improvement of overbite (+ 1.9 mm) in association with extrusion (+ 1.5 mm) and palatal inclination (+ 2.9 degrees) of the maxillary incisors.
|Tipologia:||Articolo su rivista|
|Citazione:||Cozza, P., Baccetti T, Franchi L, & Mucedero M (2007). Comparison of 2 early treatment protocols for open-bite malocclusions. AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, 132(6), 743-747.|
|Altre informazioni significative:||5|
|IF:||Con Impact Factor ISI|
|Settore Scientifico Disciplinare:||Settore MED/28 - Malattie Odontostomatologiche|
|Revisione (peer review):||Sì, ma tipo non specificato|
|Digital Object Identifier (DOI):||10.1016/j.ajodo.2005.11.045|
|Stato di pubblicazione:||Pubblicato|
|Data di pubblicazione:||2007|
|Titolo:||Comparison of 2 early treatment protocols for open-bite malocclusions|
|Autori interni:||COZZA, PAOLA|
|Autori:||Cozza, P; Baccetti T; Franchi L; Mucedero M|
|Appare nelle tipologie:||01 - Articolo su rivista|
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