Results: 1740

Users' perceptions and preferences towards maxillary removable orthodontic retainers: a crossover randomized clinical trial

Abstract The aim of this study was to assess, correlate, and compare users' perceptions and preference related to maxillary removable retainers. Volunteers were recruited to use four retainer types: conventional wrap-around (CWA), wrap-around with an anterior opening (OWA), "U" wrap-around (UWA), and cle...

Internal configuration of maxillary molars in a subpopulation of Brazil's Northeast region: A CBCT analysis

Abstract The present study aimed to evaluate the internal configuration of the maxillary molars of a population from the Northeast region of Brazil. Cone-beam computed tomography (CBCT) exams from 512 patients (1501 teeth) were evaluated regarding the anatomical configuration of the root canal system, ac...

A national study on the use of opioid analgesics in dentistry

Abstract The aim of this study was to assess the frequency of opioid analgesics prescribed by Brazilian dentists, potential regional differences and their association with socioeconomic and health-related factors. Data for all opioid prescriptions by dentists was obtained from the 2012 database of the Na...

Analysis of enamel and material wear by digital microscope: an in-vitro study

Abstract: The objective of the study was to analyze the surface area (SA) of the wear caused by simulated chewing on human enamel and opposing restorative material, namely: composite resin (CR), porcelain fused to metal (PFM), lithium disilicate (LD), or monolithic zirconia (MZr). Forty-eight premolars w...

Valores espirométricos en pre-escolares sanos

Rev. chil. pediatr; 90 (1), 2019
INTRODUCCIÓN: La espirometría es el examen más utilizado para evaluar función pulmonar. Para niños pre-escolares actualmente se cuenta con patrones de referencia extranjeros. OBJETIVOS: 1. Medir variables espirométricas en pre-escolares chilenos sanos, 2. Comparar estos resultados con predictivos ...

A new organ preservation solution for static cold storage of the liver. Amniotic fluid

Acta cir. bras; 34 (4), 2019
Abstract Purpose: To evaluate the effect of amniotic fluid in liver preservation in organ transplantation, and compare it with standard preservation solutions. Methods: The groups consisted of Group 1: Ringer Lactate (RL) group, Group 2: HTK group, Group 3: UW group, Group 4: AF group. The livers of ra...

Effects of artepillin C on model membranes displaying liquid immiscibility

Braz. j. med. biol. res; 52 (3), 2019
It has been hypothesized that the therapeutic effects of artepillin C, a natural compound derived from Brazilian green propolis, are likely related to its partition in the lipid bilayer component of biological membranes. To test this hypothesis, we investigated the effects of the major compound of green ...

Effect of grape seed extract (GSE) on functional activity and mineralization of OD-21 and MDPC-23 cell lines

Abstract Recent studies on functional tissue regeneration have focused on substances that favor cell proliferation and differentiation, including the bioactive phenolic compounds present in grape seed extract (GSE). The aim of this investigation was to evaluate the stimulatory potential of GSE in the fun...

Objetivos de presión más bajos al estándar no reducirían la morbi-mortalidad en pacientes con hipertensión arterial y enfermedad cardiovascular
Objectives of blood pressure lower than the standard did not reduce morbidity and mortality in patients with hypertension and cardiovascular disease

Validation of self-reported history of root canal treatment in a southern Brazilian subpopulation

Abstract The aim of this study was to assess self-reported history of root canal treatment (SRHRCT) as a method for detecting the presence of root canal treatment (RCT) and apical periodontitis (AP) in a southern Brazilian subpopulation. In this cross-sectional study, 136 military police officers from th...