Objective quantitative digital evaluation of crown preparation using intraoral optical scanner: Novel preclinical teaching method.

Background: Adequate preclinical training in dentistry is crucial for students before engaging in patient treatment. Constructive feedback from the instructors plays a pivotal role in guiding the students to master skills, boost confidence, and above all ensure patient safety. This manuscript introduces a new method employing intraoral scanners as digital tools to provide objective and quantitative feedback for crown preparation evaluation in preclinical prosthodontics.

The association between soft drinks consumption and risk of mental disorders among Iranian adults: The LIPOKAP study.

Objective: With rising demand for soft drinks (SDs) in low-income countries, studies examining mental disorders in relation to SDs are rather scarce. Therefore, we aimed to explore this association in a sample of Iranian adults.

Methods: This cross-sectional study was carried out within the framework of the multi-centric LIPOKAP project, with 1970 Iranian healthy adults.

Rosa canina extract relieves methylation alterations of pancreatic genes in STZ-induced diabetic rats : Gene methylation in diabetic rats treated with an extract.

Background: Diabetes is a chronic metabolic disease that affects many parts of the body. Considering diabetes as a beta cells' defect and loss, the focus is on finding mechanisms and compounds involved in stimulating the function and regeneration of pancreatic β-cells. DNA methylation as an epigenetic mechanism plays a pivotal role in the β-cells' function and development.

How did we protect children against COVID-19 in Iran? Prevalence of COVID-19 and vaccination in the socio-economic context of COVID-19 epidemic.

Introduction: The COVID-19 pandemic posed significant risks to children worldwide. This study aimed to assess the COVID-19 protection status of children and explored the relationship between household socio-economic status and COVID-19 morbidity and preventive measures, including vaccination and mask-wearing, in two cities in Iran.

Method: A population-based cross-sectional study was conducted from July to October 2022 among 7 to 18-year-old children and their families in Tehran and Karaj.

Comparing vitamin D receptor gene polymorphisms in rs11568820, rs7970314, rs4334089 between COVID-19 patients with mild and severe symptoms: a case control study.

The associations of vitamin D receptor (VDR)- single nucleotide polymorphisms (SNPs) with the symptoms of COVID-19 may vary between patients with different severities of COVID-19. Therefore, in the present study, we aim to compare VDR polymorphisms in severe and mild COVID-19 patients. In this study, a total number of 85 hospitalized patients and 91 mild/moderate patients with COVID-19 were recruited.