Low Back Pain Disparities in Portugal: A Population-Based Study Analysing the Role of Social Determinants of Health.

Introduction: Despite growing research, the relationship between social determinants of health (SDoH) and low back pain (LBP) remains inconsistent. This study aimed to investigate the associations between SDoH and self-reported LBP in the Portuguese population in 2019 and explore potential differences between rural and urban areas.

Methods: This is a cross-sectional study that includes 13,230 participants from the 2019 Portuguese National Health Interview Survey.

Health-related quality of life after rehabilitation from knee surgery in rural and urban settings: a quasi-experimental study.

Background: Injury to the knee joint is associated with physical disability, stiffness, pain, restriction of movement and impairment of the person's quality of life, with a few treatment options, including surgery and rehabilitation. This study aims to evaluate the impact of a rehabilitation program on the quality of life reported by patients living in rural and urban areas after knee surgery, using patient-reported outcome measures (PROMs).

Methods: This quasi-experimental study with two groups of participants undergoing primary knee surgery was carried out in two rehabilitation centers, one in an urban area and another in a rural one.

Changes in salivary biomarkers of pain, anxiety, stress, and inflammation related to tooth movement during orthodontic treatment: a systematic review.

Objective: This systematic review aimed to analyze the literature on changes in endogenous salivary biomarkers of pain, anxiety, stress, and inflammation related to tooth movement during orthodontic treatment of children and adolescents.

Material And Methods: An electronic search was performed in nine databases to identify quasi-experimental studies, without restricting publication language and year. Two reviewers extracted the data and assessed the individual risk of bias using the JBI tools, and the certainty of evidence using the GRADE tool.

Evaluation of the bonding strength of conventional, anatomized, adjustable, and CAD/CAM milled fiberglass posts in weakened endodontically treated roots.

This study evaluated the bond strength (BS) of conventional, anatomized, adjustable, and CAD/CAM fiberglass post systems. Forty maxillary canine roots were weakened, endodontically treated, and divided into four groups (n=10). A slice from each of the three sections (cervical, middle, apical) of the root canal was subjected to the push-out test and the failure pattern was subsequently analyzed.

Association between omega-3 index and depersonalization among healthcare workers in a university hospital: a cross-sectional study.

Introduction: Burnout harms workers physical and mental health due to induced brain changes, autonomous nervous system and hypothalamus-pituitary-adrenal axis excessive activation. Although several correlations and risk factors have been identified, the research around burnout biological correlates remains underdeveloped. The omega-3 index has been proposed in mental health as a contributor to identify high risk patients and monitor disease advancements but the evidence on its relationship with burnout is limited.