To assess if subjects with a clinical diagnosis of temporomandibular disorders (TMDs) have similar prevalence orthodontic history as population TMD-free individuals and to those who ideal orthodontics fewer symptoms than nonideal orthodontics.Two groups age- sex-matched belonging either study ("TMD") or control group were recruited. Subjects underwent treatment classified having based on the current presence normal values in five reference occlusal features.The correlation was not clinically...

The aim of this study is an evaluation the Italian dentists’ knowledge regarding COVID-19 and their perception risks associated with COVID-19, attitude in resuming activities, how they judge institutional intervention on a health economic basis. Methods: This research evaluated dentists from 11 to 18 April 2020, using questionnaire submitted via Google Forms (Alphabet, Mountain View, CA, USA). It consisted different investigations about sociodemographic aspects, profession-related...

To investigate the short-term optical, chemical and morphological changes in Invisalign appliances.One 'as-received' aligner, one aligner immersed artificial saliva for 14 days 10 aligners worn by randomly selected patients were used. Fourier'transform infra-red microspectroscopy was used to characterise any molecular on surfaces of appliances, spectrophotometry evaluate colour transparency, scanning electron microscopy energy dispersive X-ray microanalysis examine surface morphology...

The aims of this study were to analyse the stress distribution developing around an orthodontic miniscrew (OM) inserted into maxilla and determine field changes for different screw lengths levels osseointegration occurring at bone/screw interface. An integrated experimental/numerical approach was adopted. Using photoelastic technique, arising in bone after insertion application initial load assessed. finite element (FE) method used acting bony tissue a given time following application, when,...

Abstract Objective: To test the null hypothesis that there are no correlations between morphology of upper jaw, position incisors, and facial type. Materials Methods: From a sample 191 patients, FMA angle was used to select 20 short face type, norm long type aged 12 40 years. Using cone-beam computed tomography (CBCT), carried out on sagittal sections corresponding four incisors. Some parameters defining dentoskeletal relationships, alveolar thickness, height, dental movement were measured....

Prevalence of incidental maxillary sinus findings in Italian orthodontic patients: a retrospective conebeam computed tomography study Objectives: To determine the prevalence large sample patients by cone-beam (CBCT) with wide field view and assess relationships such abnormalities age gender.Methods: Five hundred thirteen CBCT scans obtained for diagnosis treatment planning Northern population (N = 513; 292 female 221 male subjects; 1,026 sinuses) were studied.The frequencies pseudocysts...

The congenital absence of one or more teeth is a dental anomaly that frequently occurs in the world's population with wide variability distribution. aim this study to assess current prevalence agenesis permanent dentition (excluding third molars) using sample Italian orthodontic patients. Panoramic radiographs 4006 Caucasian children between 9 and 16 years age (1865 males 2141 females) performed over 5-year period (from 2010 2015) were carefully examined identify missing teeth. A chi-square...

To evaluate volumetric variations in the palate following rapid expansion, both immediately after treatment and over time.The sample was composed of 30 patients early mixed dentition treated with a Haas-type device cemented onto primary second molars. The mean age upon commencement expansion 7 years 6 months (standard deviation [SD], 12 months). Measurement palatal volume conducted via 3D acquisition plaster models using laser scanning before (T1), removal (T2), 2.6 afterward (T3).The...

Background: The aim of this study is to evaluate the prevalence elongated styloid process in digital panoramic radiographs a North Italian population relation age, gender and side.Material Methods: This was performed as retrospective analysis on 600 (271 males 329 females) patients between 6 87 years old.The length were measured using measuring tool Sidexis Software.It from point where it left temporal bone plate its tip.Styloid processes more than 30 mm considered elongated.Chi-squared...

The styloid process is a projecton of the temporal bone, its lenght between 20 to 30 mm, when it longer than mm defined elongated process. aim this study an epidemiological evaluation 1003 digital panoramic radiographs in Italian population 5 and 90 years old.This retrospective analysis were selected from Complex Operating Unit Dentistry Padua University Hospital database. performed using Sirona Ortophos XG length was measured measuring tool Sidexis Software. It point where left bone plate...

Coatings incorporating nanoparticles of molybdenum and tungsten disulfide (MoS2 WS2)-known for their lubricating properties-are applied to orthodontic stainless steel wires verify if there is an improvement in terms tribological properties during the sliding wire along bracket. To simulate vitro bracket evaluate friction 0.019 × 0.025 inches (SS) were subjected application, by electrodeposition, Ni, Ni + MoS2, WS2. The samples produced analyzed with scanning electron microscopy assessment...

To test the hypothesis that palatal bone is not able to support titanium miniscrews (11 mm in length and 2 diameter) when subjected forces normally generated during orthodontic treatment.The miniscrew-palatal system was modeled analyzed using commercial finite element method software ANSYS Multiphysics 10.0; tests were done both a state of total osseointegration absence it. Calculations carried out cases configurations where miniscrew inserted into two different regions: first it anchored...