Effect of Silica-Modified Aluminum Oxide Abrasion on Adhesion to Dentin, Using Total-Etch and Self-Etch Systems.

This study compared the shear bond strength (SBS) and micromorphology of composite resin to human dentin after pre-treatment with silica-modified aluminum oxide air abrasion. Forty-six molar teeth were treated with either Scotchbond Multi-Purpose (SCMP) or Clearfil SE Bond (CLSE) adhesive. Buccal surfaces were pre-treated with the CoJet air abrasion system (SB), and lingual surfaces were controls.

Triple Head and Neck Carcinoma: Case Report and Literature Review.

Synchronous cancers are multiple cancers that develop within six months of the initial diagnosis while metachronous cancers are those that develop more than six months after the initial diagnosis. A combination of three cancers is seen with several patients, which leads to a bad prognosis, and that of synchronous cancers is worse than that of metachronous cancers. Herein, we describe the case of a 62-year-old woman with multiple metachronous head and neck cancers.

Social Support, Quality of Services, and Job Satisfaction: Empirical Evidence from Palestinian Social Workers.

This study examines the predictors of job satisfaction among public sector social workers in occupied Palestinian territories. Using a quantitative design, data were collected in summer of 2016 through a paper-based, self-administered questionnaire (N = 237). Using hierarchical multiple regression, the three models explained 15 percent to 32 percent of the variance in job satisfaction.

The Kessler psychological distress scale: translation and validation of an Arabic version.

Background: The Kessler Psychological Distress Scale has been widely used in assessing psychological distress among general and clinical populations from different cultural backgrounds. To our knowledge, however, researchers have not yet validated any translated versions in Arabic. The purpose of this study was to test the reliability and validity of Arabic translations of the ten item (K10) and six item (K6) versions among public sector employees in the Occupied Palestinian Territories.

The impacts of dental filling materials on RapidArc treatment planning and dose delivery: challenges and solution.

Purpose: The presence of high-density material in the oral cavity creates dose perturbation in both downstream and upstream directions at the surfaces of dental filling materials (DFM). In this study, the authors have investigated the effect of DFM on head and neck RapidArc treatment plans and delivery. Solutions are proposed to address (1) the issue of downstream dose perturbation, which might cause target under dosage, and (2) to reduce the upstream dose from DFM which may be the primary source of mucositis.