Accuracy of orthodontic movement with nocturnal three-dimensionally printed and thermoformed aligners : Retrospective cohort study comparing two different treatments protocols.

Purpose: This study aimed to compare the accuracy of orthodontic tooth movements achieved with three-dimensionally (3D) printed aligners (Noxi, Sweden&Martina, Due Carrare, Padova, Italy) using a 12 h/day protocol with that of thermoformed aligners (F22 aligner, Sweden&Martina, Due Carrare, Padova, Italy) using a 22 h/day protocol.

Methods: Of the 40 white adult patients (12 men and 28 women, mean age 30.1 years) undergoing orthodontic treatment with aligners selected based on specific inclusion criteria, 20 patients were treated with Noxi aligners using a 12 h/day protocol (study group), and the remaining 20 patients were treated with F22 aligners using a 22 h/day protocol (control group).

Indications and limits of clear aligner therapy: an international modified Delphi consensus study.

Background: The aims of this study were to gather expert agreement about essential aspects of clear aligner therapy (CAT) and to determine what research areas need further investigation.

Materials And Methods: A steering committee performed literature selection and compiled a list of 25 statements. This study used a modified Delphi method involving a panel of 23 international orthodontic experts.

Analysis of Natural Clinical Crown Height Changes in Central Incisors and First Molars from Age 8 to 18: A Retrospective Digital Study.

This thesis aims to digitally study the natural longitudinal evolution of clinical crown height in maxillary and mandibular central incisors and first molars between 8 and 18 years of age. A total of 31 subjects (17 females and 14 males) were selected for the study. Their plaster study models were converted to digital format using a three-dimensional scanner.

The Validity of a Smartphone-Based Method for Acquiring 3D Images of the Face.

To evaluate the accuracy and reproducibility of measurements obtained using the Bellus3D Face Application on a mobile smartphone by comparing them to direct measurements on pre-marked and blank face scans. Twenty-five healthy young adults (six males and nineteen females; age range 20-30 years) were included in this prospective cross-sectional study, with the only exclusion criterion being the presence of significant facial hair interfering with the placement and visualization of landmarks. Image acquisitions were performed using an iPhone XR with the Bellus3D FaceApp face scanning application, an iOS application for smartphones.

Artificial Intelligence in Aesthetic Dentistry: Is Treatment with Aligners Clinically Realistic?

Smile aesthetics are increasingly prioritized in dental practice, with accurate orthodontic assessment and treatment planning being crucial for optimal outcomes. This study evaluates Invisalign SmileView™ (SV), an AI-based tool that simulates post-treatment smiles, focusing on its ability to present potential orthodontic outcomes to patients. : This research aims to study whether SV can simulate predictable orthodontic results and if it makes anatomical modifications to the teeth.

Headgear therapy in children with Class II malocclusion and the role of compliance on treatment outcome: A nine-month randomized controlled trial.

Objectives: To evaluate three-dimensional movements of maxillary teeth during headgear treatment in Class II growing children, using digital analytical tools, and to determine the effects of compliance on these movements.

Materials And Methods: A 9-month parallel-group randomized controlled trial was carried out on 40 children with Class II malocclusion, aged 8-12 years, half assigned to receive a cervical headgear and half to a no-treatment group, using block randomization. Subjects in the treatment group were instructed to wear the headgear for 12 hours daily and monitored using an electronic module.

How well does Invisalign ClinCheck predict actual results: A prospective study.

Introduction: This study aimed to compare achieved movements with predicted movements after 28-week use of Invisalign Lite aligners.

Settings And Sample Population: The digital impressions of 21 subjects treated with Invisalign Lite at a private practice and in the dental clinic (Milan, Italy) were taken and analysed. Subjects were Caucasian with a mean age of 20.

Accuracy of lingual straight-wire orthodontic treatment with passive self-ligating brackets and square slot: a retrospective study.

Objectives: To investigate the accuracy of torque, tip and rotation and linear intra-arch movements yielded by passive self-ligating lingual straight-wire appliances with brackets featuring square slots.

Materials And Methods: Twenty-five adult Caucasian patients (16 females and 9 males; mean age 26.5 ± 4.

Is a non-radiological-assisted method valid for establishing crown-root relationships in an orthodontic set-up incorporating the roots? A retrospective study.

Introduction: This study aimed to obtain information on the relationship between crown and root in terms of morphology - dimensions and crown-root angles -to be used for orthodontic set-ups without the use of radiological examinations.

Material And Methods: All the good quality CBCTs of patients obeying the eligibility criteria, from 2000 to 2015, were analysed. All teeth were analysed except for third molars.

Accuracy of planned tooth movement with lingual straight wire technique.

Objectives: To analyze the accuracy of planned tooth movements of torque, tip, rotations, and transverse width values with lingual straight-wire technique.

Materials And Methods: 40 Caucasian subjects with mean age of 23.9 years, consecutively treated in private practice with a lingual straight-wire appliance (STb, Ormco, Glendora, Calif) were evaluated.

Sella turcica dimensions and maxillary growth in patients with unilateral cleft lip and palate.

Objectives: We aimed to investigate associations between sella turcica dimensions and maxillary growth in children with unilateral cleft lip and palate (UCLP).

Methods: Forty-nine patients with non-syndromic UCLP, prior to secondary alveolar bone-grafting, were included. The outcomes measured were sella turcica and maxillary cephalometric measurements, and scores representing dental arch relationships derived from dental casts.

Evaluation of Tooth Movement Accuracy with Aligners: A Prospective Study.

Background. Clear aligners treatment (CAT) is a common solution in orthodontics to treat both simple and complex malocclusions. This study aimed to evaluate the predictability of CAT, comparing the virtually planned and the achieved tooth movement at the end of stage 15, which is often the time of first refinement.

Sella Turcica Bridging and Tooth Agenesis in Children With Unilateral Cleft Lip and Palate.

Aim: To investigate differences in sella turcica size and bridging in children with unilateral cleft lip and palate (UCLP) with or without concomitant dental anomalies.

Patients And Methods: A cross-sectional study was carried out looking at 56 children with nonsyndromic UCLP. Lateral cephalograms, taken before alveolar bone grafting, were used to assess sella turcica height, width, area, and bridging.

Palatal changes in crossbite patients treated with rapid maxillary expansion vs untreated ones: A geometric morphometric study.

Objective: The present study aimed to analyse palatal changes due to rapid maxillary expansion (RME) by using modern geometric morphometric analysis (GMA) on 3D models.

Settings And Sample Population: Forty children with posterior crossbite and maxillary deficiency were selected for this study. Twenty children were treated with RME (mean age 7.

Sella turcica morphometrics in children with unilateral cleft lip and palate.

Objective: To use morphometric methods to investigate the size and shape of the sella turcica in children with unilateral cleft lip and palate (UCLP).

Setting And Sample Population: Fifty-six healthy children with non-syndromic UCLP, from a major paediatric teaching hospital, with lateral cephalograms taken prior to alveolar bone grafting, were compared with an age- and sex-matched control group of healthy children without orofacial clefts, with lateral cephalograms taken prior to orthodontic treatment.

Materials And Methods: In this cross-sectional study, conventional measurements were performed on the sella turcica to measure width, height and area on lateral cephalograms.

Functional factors associated with continuous eruption of maxillary incisors in adulthood: A 10-year prospective cohort study.

Purpose: To investigate whether functional factors estimated by the masseter muscle thickness (MMT) and the maximum occlusal force (MOF), were associated with the amount of continuous eruption of maxillary incisors in adults.

Materials And Methods: Dental casts were taken twice in 24 adult female patients during a 10-year prospective cohort study. At the first appointment, ultrasonographic measures of the MMT and MOF were recorded.

Transverse and torque dental changes after passive self-ligating fixed therapy: A two-year follow-up study.

Introduction: Self-ligating appliances are purposed to expand the arches, but evidence on stability of the result is lacking. We measured the width of maxillary and mandibular arches and torque changes after treatment with the use of passive self-ligating appliances and assessed stability at the 2-year follow-up.

Methods: Maxillary and mandibular 3-dimensional (3D) models from 32 subjects (mean initial age 14.

Headgear compliance as assessed by a temperature-sensitive recording device: a prospective clinical study.

Objective: To accurately describe compliance in headgear wearing time by using a temperature- and force-sensitive device over an 8 month period of use in a prospective clinical manner.

Materials And Methods: Twenty children with Class II malocclusion aged 8-12 years were randomly selected for treatment with cervical headgear. The headgears were equipped with an electronic module, which measured temperature and force, and patients were instructed to wear the headgear 12 hours daily.

Does low-frequency vibration have an effect on aligner treatment? A single-centre, randomized controlled trial.

Background: Low-frequency vibrations have been proposed as a means of accelerating tooth movement and reducing orthodontic treatment times.

Objective: To determine any differences in the accuracy of dental movement in patients treated with a low-frequency vibration aligner protocol and/or by reducing the aligner replacement interval with respect to a conventional protocol.

Design: This trial was designed as a single-centre, randomized controlled clinical trial.

Measuring 3D shape in orthodontics through geometric morphometrics.

Background: Geometric morphometrics (GMM) has been traditionally applied to the field of biology to study developmental differentiations between species. Orthodontics deals with the shape and size of the face and its components. While several tools have been used to measure size, proportions, and relations between anatomical components, shape has been mainly described by esthetic criteria.

Predictability of orthodontic movement with orthodontic aligners: a retrospective study.

Background: The aim of this study was to evaluate the predictability of F22 aligners (Sweden & Martina, Due Carrare, Italy) in guiding teeth into the positions planned using digital orthodontic setup.

Methods: Sixteen adult patients (6 males and 10 females, mean age 28 years 7 months) were selected, and a total of 345 teeth were analysed. Pre-treatment, ideal post-treatment-as planned on digital setup-and real post-treatment models were analysed using VAM software (Vectra, Canfield Scientific, Fairfield, NJ, USA).

Continuous eruption of maxillary teeth and changes in clinical crown length: A 10-year longitudinal study in adult women.

Background: Continuous physiologic eruption of teeth may become a main aesthetic issue for implants inserted in the maxillary anterior region.

Purpose: To study maxillary tooth vertical changes during a 10 years period by 3-dimensional superimposition of digital dental casts.

Material And Methods: Alginate impressions were taken at both baseline and at the 10-year follow-up in a sample of 24 adult Swedish women (average age of 48 years at T0).