Biomechanical analysis of total arch maxillary distalization using infrazygomatic crest miniscrews: a finite element analysis study.

Aim: To evaluate the maxillary incisors and canine's immediate movement tendency using three different power arms (PA) height levels during total arch maxillary distalization supported on infrazygomatic crest (IZC) miniscrews according to finite element analysis (FEA).

Methods: Three finite element models of the maxilla were developed based on CBCT imaging of a teenage male patient presenting a Class II Division 1 malocclusion in the early permanent dentition. Maxillary complex, periodontium, orthodontic accessories, IZC miniscrews and an orthodontic wire were digitally created.

Exploring men's health in medium and high complexity care in Brazil: A deductive thematic analysis of social determinants.

Background: Men's health is influenced by a complex interplay of social, economic, and cultural determinants. Understanding how these aspects affect the health of adult cisgender men in medium and high-complexity healthcare settings is essential for improving healthcare services and promoting better health outcomes.

Objective: This study aimed to analyze the health status of adult cisgender men in medium and high-complexity healthcare settings based on social determinants and conditioners.

Current status of the biomechanics of extra-alveolar miniscrews.

Temporary skeletal anchorage devices such as miniscrews are frequently used nowadays. Compared to miniplates, miniscrews are much less expensive and technically easier to place and remove; they are popular and can be easily placed by an orthodontist. Extra-alveolar miniscrews offer benefits compared to inter-radicular miniscrews, such as reduced risk of root damage and the lack of interference with the mesiodistal tooth movement.

Neutrophil extracellular traps (NETs), transfusion requirements and clinical outcomes in orthotopic liver transplantation.

Inflammatory phenomena have a direct impact on the prognosis of orthotopic liver transplantation (OLT). Neutrophil extracellular traps (NETs) contribute to OLT inflammation and hemostasis imbalance in OLT. The association between NETosis, clinical outcomes and transfusion requirements is not determined.

Dental arch changes comparison between Expander with Differential Opening, Hyrax-type and Haas-type expanders: A prospective clinical study.

Objective: Compare changes in arch form after RME achieved by Expander with Differential Opening (EDO), Hyrax-type and Haas-type expanders.

Materials And Methods: Dental models were obtained from 61 patients aged 7-11 years before expansion (T1) and 6 months after the active phase when the appliances were removed (T2). The groups were formed according to the expander used: EDO (n = 18, mean age: 9.

Technological advances in the serological diagnosis of Chagas disease in dogs and cats: a systematic review.

Background: Chagas disease (CD) is caused by Trypanosoma cruzi, which is transmitted mainly through the feces/urine of infected triatomine bugs. The acute phase lasts 2-3 months and is characterized by high parasitemia and nonspecific symptoms, whereas the lifelong chronic phase features symptoms affecting the heart and/or digestive tract occurring in 30-40% of infected individuals. As in humans, cardiac abnormalities are observed in T.

Total arch maxillary distalization using infrazygomatic crest miniscrews in the treatment of Class II malocclusion: a prospective study.

Objectives: To evaluate treatment effects in Class II patients using infrazygomatic crest (IZC) miniscrews (MS).

Materials And Methods: A prospective sample of 25 adolescents (14 females and 11 males; mean age: 13.6 ± 1.

Modelling kidney outcomes based on MELD eras - impact of MELD score in renal endpoints after liver transplantation.

Background: Acute kidney injury is a common complication in solid organ transplants, notably liver transplantation. The MELD is a score validated to predict mortality of cirrhotic patients, which is also used for organ allocation, however the influence of this allocation criteria on AKI incidence and mortality after liver transplantation is still uncertain.

Methods: This is a retrospective single center study of a cohort of patients submitted to liver transplant in a tertiary Brazilian hospital: Jan/2002 to Dec/2013, divided in two groups, before and after MELD implementation (pre-MELD and post MELD).

Effects of orthodontic treatment with aligners and fixed appliances on speech.

Objectives: To evaluate effects of orthodontic treatment with aligners and conventional fixed appliances on production of speech.

Materials And Methods: This was a parallel, randomized clinical trial. Patients with Angle Class I malocclusion, moderate crowding, and no speech impairment were randomly allocated to two groups: patients with orthodontic aligners (OAs; n = 20; mean age = 23.

Perceived pain during rapid maxillary expansion in children with different expanders.

Objectives: To evaluate and compare the intensity of pain caused by rapid maxillary expansion (RME) with two expanders: Hyrax and Haas type, in growing patients.

Materials And Methods: Thirty-nine patients (23 girls and 16 boys) with an average age of 9.3 years (SD = 1.

Genomic variations in patients with myelodysplastic syndrome and karyotypes without numerical or structural changes.

Myelodysplastic syndrome (MDS) is an onco-hematologic disease with distinct levels of peripheral blood cytopenias, dysplasias in cell differentiation and various forms of chromosomal and cytogenomic alterations. In this study, the Chromosomal Microarray Analysis (CMA) was performed in patients with primary MDS without numerical and/or structural chromosomal alterations in karyotypes. A total of 17 patients was evaluated by GTG banding and eight patients showed no numerical and/or structural alterations.

Dimensional stability of alginate molds scanned at different storage times.

The aim of this study was to evaluate the precision and accuracy of molds made with four commercial brands of alginate scanned at different times using digital model analysis. Eighty molds of a standard Typodont were made using 4 types of alginate (CCC: Cavex Color Change; IA: Identic Alginate; HY5: Hydrogum 5 and JP: Jeltrate Plus). The molds were scanned at four times: immediately (T1), 24h (T2), 72h (T3) and 120h (T4) after molding.

Evaluation of drug-induced liver injury as etiology for acute liver failure in Brazil.

Introduction And Objectives: Little is known about the etiology of acute liver failure (ALF) in Latin America. The objective of this paper is to investigate the main etiologies of ALF in Brazil, including Drug Induced Liver Injury (DILI) using stringent causality criteria.

Patients Or Material And Methods: All the cases of individuals who underwent liver transplantation (LT) in 12 centers in Brazil for ALF were reviewed.

A prospective clinical trial of the effects produced by the Connecticut intrusion arch on the maxillary dental arch.

Objective: To assess and compare the effects produced in the maxillary dental arch by means of Connecticut intrusion arch (CIA) with or without a cinch back on the distal end of the tube of the first molars.

Materials And Methods: This study included 44 patients with a mean age of 13.1 ± 1.

Bone dehiscence formation during orthodontic tooth movement through atrophic alveolar ridges.

Objectives: To test the null hypothesis that there is no difference in bone dehiscence formation before and after orthodontic tooth movement through an atrophic alveolar ridge.

Material And Methods: This longitudinal retrospective study evaluated pretreatment and posttreatment cone-beam computed tomography imaging of 15 adult patients. Twenty-five teeth were moved through the atrophic alveolar bone, whereas 25 teeth not subjected to translational movement were considered controls.

Frequency of awake bruxism behaviour in orthodontic patients: Randomised clinical trial: Awake bruxism behaviour in orthodontic patients.

Introduction: The influence of aligners on the activity of the masticatory muscles is still controversial, especially regarding the behaviour associated with awake bruxism (AB).

Objective: To compare the frequency of AB behaviours between patients treated with aligners and fixed appliances.

Methods: The sample comprised 38 Class I patients (mean age 22.

Self-perception of facial esthetics by patients with different profiles compared with assessments of orthodontists and lay people.

Introduction: This study evaluated the perception of facial esthetics of patients with different profiles as assessed by orthodontists, lay people, and patients.

Methods: The sample comprised 120 patients (81 females, 39 males; mean age, 26.3 years) selected from private practices at the onset of orthodontic treatment.

A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite.

Aim: To evaluate the maxillary dentition effects of the extrusion arch for anterior open bite (AOB) correction in mixed dentition patients.

Materials And Methods: Fourteen subjects with an initial mean age of 9.17 ± 1.

Evaluation of pain intensity in patients treated with aligners and conventional fixed appliances: Randomized clinical trial.

Objective: This randomized clinical trial aimed to compare the pain intensity in patients treated with orthodontic aligners and conventional fixed appliances.

Setting And Sample Population: This study was a randomized clinical trial. The sample comprised 39 patients randomly allocated into 2 groups: OA (orthodontic aligners, n = 20) and FA (Fixed Appliance, n = 19).

Diagnosis and management of hepatic artery in-stent restenosis after liver transplantation by optical coherence tomography: A case report.

Background: Percutaneous transluminal angioplasty and stenting represent an effective treatment for hepatic artery stenosis after liver transplantation. In the first year after stenting, approximately 22% of patients experience in-stent restenosis, increasing the risk of artery thrombosis and related complications, and 50% experience liver failure. Although angiography is an important tool for diagnosis and the planning of therapeutic interventions, it may raise doubts, especially in small-diameter arteries, and it provides low resolution rates compared with newer intravascular imaging methods, such as optical coherence tomography (OCT).

Imaging response predictors following drug eluting beads chemoembolization in the neoadjuvant liver transplant treatment of hepatocellular carcinoma.

Background: Drug-eluting bead transarterial chemoembolization (DEB-TACE) is an endovascular treatment to release chemotherapeutic agents within a target lesion, minimizing systemic exposure and adverse effects to chemotherapeutics. Therefore, identifying which patient characteristics may predict imaging response to DEB-TACE can improve treatment results while selecting the best candidates. Predictors of the response after DEB-TACE still have not been fully elucidated.

Risk Factors for Transfusion after Orthotopic Liver Transplantation.

Background: Transfusion of blood products during orthotopic liver transplantation (OLT) is associated with increased morbidity and mortality. Although risk factors associated with intraoperative transfusion requirements have been widely assessed, published data on the prediction of postoperative transfusion requirements are sparse.

Objectives: The aim of this study was to evaluate risk factors for postoperative allogeneic transfusion requirements in OLT.

Long-term outcomes of hepatocellular carcinoma that underwent chemoembolization for bridging or downstaging.

Background: Prospective study of 200 patients with hepatocellular carcinoma (HCC) that underwent liver transplant (LT) after drug-eluting beads transarterial chemoembolization (DEB-TACE) for downstaging versus bridging. Overall survival and tumor recurrence rates were calculated, eligibility for LT, time on the waiting list and radiological response were compared. After TACE, only patients within Milan Criteria (MC) were transplanted.