Comparative evaluation of the dentoalveolar effects of three Class II correctors: A finite element analysis study.

Objective: To compare the stress distribution and total strain applied to the dentition, periodontal ligament (PDL) and cortical and trabecular bones by three Class II correctors using finite element analysis.

Design: Three-dimensional analysis of stresses and total strain of the dentition with three Class II correctors.

Setting: Computational study.

Orthodontic treatment need, the types of brackets and the oral health-related quality of life.

Background: Malocclusion can affect the oral health-related quality of life (OHRQoL). The influence of the orthodontic treatment need (OTN) and the type of brackets on OHRQOL is not clear.

Objectives: The aim of the present study was to determine the relationships between OTN and the bracket type and OHRQoL during the first 6 months of orthodontic treatment (OT) in adult patients.

Alignment efficiency of heat activated and superelastic nickel-titanium archwires in orthodontic patients over three months: A Single-center, randomized clinical trial.

Objective: The aim of this 2-arm parallel study was to evaluate the alignment efficiency of heat-activated nickel-titanium (NiTi-TE) and superelastic nickel titanium (NiTi-PSE) archwires over the first 3 months of orthodontic treatment and compare these groups.

Setting And Sample Population: Randomized, double-blind, controlled, single-center trial in 52 patients with fixed orthodontic appliances from an orthodontic graduate program in the permanent dentition and moderate crowding in the lower arch.

Material And Methods: Patients were randomly allocated to one of two interventions: NiTi-TE and NiTi-PSE archwires, 0.

Impact of COVID-19 on the future career plans of dentists.

Background: It is important to complement the scientific literature with the data regarding the impact of the coronavirus disease 2019 (COVID-19) pandemic on the social, work and health practices as well as on the daily life of dentists, and to promote adequate public policies.

Objectives: The aim of the study was to explore the impact of the COVID-19 pandemic on the career plans of dentists in Colombia.

Material And Methods: As part of global research on the impact of COVID-19 on dentistry, a crosssectional survey was administered via digital media to dentists in Colombia.

Biological Anchorage and Canine Orthodontic Movement Rate with a New Technique for Micro-Osteoperforations.

Introduction: The differential management of anchorage and the acceleration of tooth movement are some of the current greatest challenges for orthodontists. Diverse techniques and devices to reinforce anchorage and increase the rate of tooth movement have been proposed. Whether micro-osteoperforations (MOPs) can be used for both purposes is currently investigated.

Age differences in relation to bone thickness and length of the zygomatic process of the maxilla, infrazygomatic crest, and buccal shelf area.

Introduction: The purpose of this study was to compare the thickness and length of the zygomatic process (ZP) of the maxilla, infrazygomatic crest area, and mandibular buccal shelf by sex and age.

Methods: Cone-beam computed tomography images of 128 subjects were divided into 3 groups: (1) 22 female and 19 male subjects aged 9-13 years, (2) 27 female and 20 male subjects aged 14-23 years, and (3) 20 female and 20 male subjects aged 24-50 years. A previously calibrated operator was used to take all measurements of the zygomatic process vertical bone thickness, zygomatic process horizontal bone length, zygomatic process/cementoenamel length (ZP/CEJL), infrazygomatic crest region bone thickness (IZCBT), infrazygomatic crest region bone length (IZCL), and mandibular buccal shelf bone thickness.

Ventilation and air-conditioning systems in dental clinics and COVID-19: How much do we know?

Background: This study evaluated the association between knowledge and management of ventilation and air-conditioning systems (VAC) to avoid the spread of the SARS-CoV-2 virus in health facilities by dentists and demographic variables.

Material And Methods: A cross-sectional digital media survey was administered to dentists as part of global research. The core questionnaire was used including four additional questions on VAC (Q1: knowledge, Q2: work settings, Q3: temperature, and Q4: maintenance).

Changes in the mechanical properties of two nickel-titanium archwires after 3 months of clinical usage.

Background: Nickel-titanium archwires have unique mechanical properties that make them the archwire of choice during the first phase of orthodontic treatment. However, during its clinical use when subjected to oral conditions, these properties can undergo great changes.

Materials And Methods: A sample of 24 randomly chosen superelastic NiTi orthodontic archwires (12 TE and 12 PSE) with a 0.