AIM: The aims of the present study were to: investigate prevalence, characteristics, sex distribution and significant associations with DMC in a group of growing subjects affected by tooth agenesis; analyze whether the severity of the tooth agenesis has an effect on dental development and presence of DMC, and evaluate whether hypodontia can be a factor involved in maxillary canine impaction when isolated in the maxilla or in the mandible.

Introduzione: Lo scopo di questo lavoro è stato confrontare gli effetti del quad-helix con griglia (Q-H/C) e il bionator (OBB) in pazienti con morso aperto.

Materiali e metodi: Il campione di pazienti con Q-H/C ha incluso 15 soggetti, 11 femmine e 4 maschi. L’età media per il gruppo Q-H/C prima del trattamento (T1) era di 8,2±1.3 anni,

Aim:To evaluate the relationship between palatal surface area and volume, measured by 3D analysis of digital casts, and the degree of severity of OSA (apnea/hypopnea index AHI>1) in Marfan children.

Materials and Methods:Twenty children with a clinical diagnosis of MS were recruited from the Centre for Rare Diseases for Marfan Syndrome and Related Disorders of Tor Vergata University Hospital and evaluated in the Departments of Orthodontics of the same University.

Aim: To analyze soft tissue changes produced by the facemask protocol (FMP; rapid maxillary expander, facemask, and removable lower bite-block) in Class III growing patients with respect to an untreated Class III sample by means of Bergman’s soft tissue analysis.

Subjects and method: The treated group consisted of 32 (15 females,

AIMS: The purpose of this study was to use geometric morphometric analysis to evaluate the variability of palatal shape and arch dimension associated with palatally displaced canine.

SUBJECTS AND METHOD: Forty-six patients (18 males, 28 females; mean age 13.8±1.2 years) with palatally displaced of one or both canine (PDC) were compared with a control group (CG) of 25 subjects (11 males,