The aim is to evaluate the effects of slow maxillary expansion on maxillary and mandibular arch, using a slow maxillary expander (SME-Leaf Expander) banded on primary second molar. Ninety patients with transverse maxillary deficiency and posterior crossbite were selected. Sixty-nine patients (33 males/36 females; 7.6 ± 1.7 years old) who underwent SME and 21 patients (10 males/11 females; 7.4 ± 1.2 years old) who were treated with rapid maxillary expander (RME). Digital models obtained pre- and post-treatment at appliance removal (9 to 11 months) were processed by means of a 3D scanner (Trios 3, 3Shape D250 laser, Copenhagen, Denmark). Interdental width in both maxilla and mandible were measured with 3 SHAPE Ortho Analyzer. Four Maxillary and four mandibular interdental width were traced and evaluated. The adequate Student’s t-test (dependent or independent) was used to compare intra and intergroups interdental width differences (p < 0.05). The efficacy of the SME was confirmed both on maxillary and mandibular arch. All the maxillary and mandibular interdental widths increased significantly (p < 0.001). The comparison with the RME group showed significant statistical differences between the two treatments with a greater increase in primary first and second intermolar and canine width for the test group (p < 0.001). SME with Leaf Expander produced statistically significant effects for the correction of transverse maxillary deficiencies with a significant indirect effect on the mandibular arch.
Three-Dimensional Evaluation of Slow Maxillary Expansion with Leaf Expander vs. Rapid Maxillary Expansion in a Sample of Growing Patients: Direct Effects on Maxillary Arch and Spontaneous Mandibular Response / G. Cossellu, A. Ugolini, M. Beretta, M. Farronato, A. Gianolio, C. Maspero, V. Lanteri. - In: APPLIED SCIENCES. - ISSN 2076-3417. - 10:13(2020 Jun 29).
|Titolo:||Three-Dimensional Evaluation of Slow Maxillary Expansion with Leaf Expander vs. Rapid Maxillary Expansion in a Sample of Growing Patients: Direct Effects on Maxillary Arch and Spontaneous Mandibular Response|
COSSELLU, GIANGUIDO (Primo)
UGOLINI, ALESSANDRO (Secondo)
MASPERO, CINZIA MARIA NORMA (Penultimo)
LANTERI, VALENTINA (Ultimo) (Corresponding)
|Parole Chiave:||maxillary expansion; palatal expansion; crossbite; digital dentistry; digital orthodontics; 3D imaging; slow maxillary expansion; clinical research;|
|Settore Scientifico Disciplinare:||Settore MED/28 - Malattie Odontostomatologiche|
|Data di pubblicazione:||29-giu-2020|
|Data ahead of print / Data di stampa:||2020|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.3390/app10134512|
|Appare nelle tipologie:||01 - Articolo su periodico|