Occurrence of microplastics in edible tissues of livestock (cow and sheep).

Plastic contamination is widely recognized as a major environmental concern due to the entry of small plastic particles into the food chain, thereby posing potential hazards to human health. However, the current understanding of microplastic (MP; < 5 mm) particles in livestock, which serve as an important food source, is limited. This study aims to investigate the concentration and characteristics of MPs in edible tissues of cow and sheep, namely liver, meat, and tripe, obtained from butcher shops in five areas of Bushehr port, Iran.

Surgical adhesives in ophthalmology: history and current trends.

Tissue adhesives are gaining popularity in ophthalmology, as they could potentially reduce the complications associated with current surgical methods. An ideal tissue adhesive should have superior tensile strength, be non-toxic and anti-inflammatory, improve efficiency and be cost-effective. Both synthetic and biological glues are available.

Antimicrobial activity of seven essential oils from Iranian aromatic plants against common causes of oral infections.

Background: Over the past two decades, there has been a growing trend in using oral hygienic products originating from natural resources such as essential oils (EOs) and plant extracts. Seven aromatic plants used in this study are among popular traditional Iranian medicinal plants with potential application in modern medicine as anti-oral infectious diseases.

Objectives: This study was conducted to determine the chemical composition and antimicrobial activities of essential oils from seven medicinal plants against pathogens causing oral infections.

Comparison of the Effect of two Denture Cleansers on Tensile bond Strength of a Denture Liner.

Statement Of Problem: One of the most clinical challenging issues in prosthodontics is debonding of soft liners from the denture base.

Purpose: The aim of this study was to evaluate and compare tensile bond strength between soft liner and heat-cured acrylic resin when immersed in two different types of denture cleanser and distilled water, at different period of times.

Materials And Method: In this experimental in vivo study, 238 heat-cured acrylic blocks were made.

Effect of surface treatments on shear bond strength of denture teeth to denture base resins.

Background: Debonding of denture teeth from denture bases is the most common failure in removable dentures. The purpose of this study was to evaluate the effect of surface treatments on shear bond strength of denture teeth to heat-polymerized and autopolymerized denture base resins.

Materials And Methods: In this experimental in vitro study, 60 maxillary central incisor acrylic teeth were divided into two groups.