(1) Background: This study aims to investigate, within a controlled laboratory environment, the magnitude of transversal load and force decay over time produced by clear aligners in comparison Rapid Palatal Expander (RPE). (2) Methods: Resin models dental maxillary arch, additively manufactured from an intraoral scan, were inserted testing machine with uniaxial cells measure trend expressed RPE aligners. The mechanical was recorded during certain timeframe for both appliances. (3) Results:...

Since the introduction of cone-beam computed tomography (CBCT) in dentistry, this technology has enabled distortion-free three-dimensional cephalometric analysis for orthodontic and orthognathic surgery diagnosis. However, CBCT is associated with significantly higher radiation exposure than traditional routine bidimensional examinations diagnosis, although low-dose protocols have markedly reduced over time. The objective preliminary feasibility study to compare accuracy diagnostic...

This study aims to evaluate changes of maxillary sinuses in growing subjects. Cone Beam Computed Tomography (CBCT) scans 146 patients were divided according gender and age (6-8, 9-11, 12-14 years old). Left, right total sinus volume (MSV-R, MSV-L, MSV-Tot) surface (MSS-R, MSS-L, MSS-Tot), left linear maximum width (LMW-L, LMW-R), depth (LMD-R, LMD-L) height (LMH-R, LMH-R) calculated using Mimics Research 22. Kruskal-Wallis Test showed a statistically significant increase both genders for all...

The aim is to evaluate changes in the volume of upper airways before and after slow maxillary expansion (SME) obtained with flexible properties a nickel titanium leaf spring rapid (RME) conventional Hyrax appliance growing patients. records 1200 orthodontic patients undergoing from 2018 2019 were analyzed; among these pre post treatment CBCT scans 22 (mean age 8.2 ± 0.6 years old) treated by SME compared those 8.1 0.7 RME banded on second primary molars. following inclusion criteria used:...

Abstract The aim of this study is to compare cone-beam computed tomography (CBCT) and bi-dimensional reconstructed lateral cephalograms (RLCs) in assessing mandibular body length growth evaluate how reshaping influences the error measuring radiographs. Twenty-five patients with two CBCT scans taken at a mean distance 2.21 ± 0.5 years were selected. following measurements performed: right left each point time, growth, inter-gonial symphyseal angle. From CBCT, an RLC was obtained, measured....

In Juvenile Idiopathic Arthritis (JIA) temporo-mandibular joints are often affected causing skeletal and dental malocclusions. The most frequent condition is mandibular hypoplasia, that may be associated with maxillary hypoplasia. aim of this retrospective case control study to investigate the effects safety rapid expansion (RME) in growing patients by JIA. It was evaluated whether RME could performed without complications on TMJs JIA using DC/TMD protocol, naso-maxillary transversal...

The objective was to evaluate the relationship between dimensions of maxillary sinuses (MSs) and various cephalometric parameters. MS volume (MSV), surface (MSS), linear maximum depth (LMD), width (LMW), height (LMH) were calculated on CBCT scans 99 adults. Two sets two-way (ANOVA) assessed influence respectively ANB SNA angles gender dimensions. Pearson's correlation different variables. Reliability accuracy proposed method tested with intra-operator inter-operator intraclass coefficient...

The aim of this study is to assess whether operculectomy in patients with retained second molars eases spontaneous tooth eruption respect untreated controls. Two hundred and twenty-two delayed at least one molar were selected from the archives Department Orthodontics, Milan, Italy. Eighty-eight patients, 40 males 48 females (mean age 14.8 ± 1.3 years), met inclusion criteria. Records then divided into case control groups. group consisted that underwent removal overlaying mucosa over (i.e.,...

Juvenile idiopathic arthritis (JIA) affecting temporomandibular joints (TMJ) in growing patients results maxillofacial deformities, especially if only one condyle has been affected by the rheumatic disease. Mandibular hypoplasia is most common issue and it may be associated with maxillary hypoplasia. The aim of this retrospective case-control study to evaluate effects rapid expansion (RME) these patients.25 hypoplasia, currently a quiescent phase JIA for at least year monolateral involvement...

The aim of this study was to evaluate the relationship between frontal sinus shape and facial growth pattern.

Abstract Background The aim of the present study was twofold:(1) three-dimensionally evaluate quantitative skeletal and dentoalveolar changes after Ni–Ti leaf spring expander (leaf expander) rapid maxillary expansion (RME) in mixed dentition patients;(2) analyze modifications buccal alveolar bone plate first permanent molars. Methods Patients who underwent CBCT scans before were randomly selected from records archived at Department Biomedical Surgical Dental Sciences, University Milan,...

Objectives: This study examines the association between a predominantly soft-textured diet and clinical signs of maxillary bone hypoplasia, such as constriction related malocclusions like crossbite. A secondary aim is to assess whether this correlates with dental caries higher plaque index in children early mixed dentition. Methods: total 106 pediatric patients (4–12 years) were enrolled during routine visits (June 2022–February 2024), divided into 53 “cases” (maxillary hypoplasia...

Background: Vestibular bone thickness changes and dento-alveolar buccal tipping of second primary molars first after maxillary expansion performed with a slow protocol was investigated. Methods: Twenty patients (mean age 7.3 ± 0.9 years old; 9 male 11 female) were treated according to the Leaf Expander protocol. Buccal alveolar (BT), height (BH), inter-dental angle (TIP), inter-molar width (IW) regarding calculated before on cone beam computed tomography (CBCT) images. Descriptive statistics...

The aim of this work is to evaluate changes following rapid maxillary expansion (RME) on breathing function in two groups patients: mouth breathers and nasal breathers. Twenty-five oral breather patients (12 male, 13 female, mean age 15.2 ± 1.3), 25 (14 11 15.3 1.6) were treated with RME. Breathing was evaluated by computerized spirometry. Forced vital capacity (FVC), forced expiratory volume the first second (FEV1), Tiffenau index (FEV1/ FVC ratio, IT%), flow at 25–75% (FEF 25–75%), Tidal...

Clinical practice and some scientific evidence seem to suggest that there is kind of relationship between the components form postural chain. For professional dancers, good posture balance are essential. The aim present retrospective study evaluate whether gnathological treatment could have an impact on sports performance ballet dancers. Electromyographic (EMG) data tests were recorded before after six months with a customized occlusal splint. Twenty athletes examined during exercises in...

To evaluate the buccal alveolar bone changes and upper first molar displacement in subjects treated with conventional rapid maxillary expansion (RME), Ni-Ti leaf springs expander (Leaf Expander) Tooth-Bone-borne Expander (Hybrid using CBCT scans.The sample consisted of 52 children RME (n=18), Leaf (n= 17) Hybrid 17). CBCTs were taken before after Horos software was used for analysis. Descriptive statistics paired t-test to assess between pre-treatment post-treatment measurements. ANOVA test...

Background: The aim of this study is to evaluate and compare, through bidimensional cephalometry, skeletal dental changes obtained from a rapid maxillary expander (RME) Ni-Ti leaf spring (Leaf) compare them with an untreated control group. Methods: Records consisted lateral cephalograms before after expansion patients that underwent orthodontic treatment at the Department Biomedical, Surgical Dental Sciences. Leaf group 9 males (mean age = 7.5 ± 0.9 years old) 11 females 8.2 0.6 old). RME...

Abstract Background There is currently no information on how different mandibular segments are affected by juvenile idiopathic arthritis. The aim of this paper to assess volumetric differences in subjects with unilateral and bilateral JIA compare them non-JIA control volumes. Materials methods Forty TMJ involvement 48 were selected for the case group 45 known rheumatic comorbidities group. mandible each subject was divided according a validated method into paired volumes (hemimandible,...

The presence of foreign bodies in the external auditory canal young patients may cause, if left untreated, severe permanent damage to adjacent anatomical structures, and infections. A 10-year-old patient with an intellectual disability underwent orthodontic evaluation. An aural radiopaque finding was visible lateral cephalogram orthopantomography. patient's mother reported that her son never showed any ear discomfort, except for a mild hearing impairment investigated. referred ear, nose...

Aim: The aim of the present study was to investigate modifications in electromyographic activity temporal and masseter muscles before after surgically assisted rapid maxillary expansion (SARME) adult subjects. Materials Methods: Data from 20 patients with unilateral posterior crossbite were selected retrospectively Orthodontics Department University Genoa Biomedical Surgical Dental Sciences Milan, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico Milan. Inclusion criteria set as...