Influence of Diabetes Mellitus and Universal Adhesive Application Mode on the Bond Strength of Composite Resin to Dentine.

Background: The aim of the current study was to evaluate the influence of diabetes mellitus and the mode of applying a universal adhesive on the shear bond strength of composite resin to dentin.

Material And Methods: Forty teeth were extracted from diabetic individuals who had been living with diabetes for a period of 5 to 15 years. These forty teeth were divided into two groups: twenty molars from patients with type 1 diabetes and twenty molars from patients with type 2 diabetes.

Effect of antioxidant on tooth sensitivity after bleaching.

Objectives: This study aimed to investigate the effect of antioxidant (sodium ascorbate) on tooth sensitivity after two in-office bleaching techniques (light-activated and chemical bleaching).

Materials And Methods: Ten patients aged 18-25 were bleached in four groups according to bleaching materials and/or antioxidant used. Group A: Maxillary right quadrant received light-activated bleaching with antioxidant.

Attention-deficit hyperactivity disorder in Egyptian medical students and how it relates to their academic performance.

Background: The neurobehavioral disorder, known as attention-deficit hyperactivity disorder (ADHD), is characterized by impulsivity, hyperactivity, and a lack of focus. In addition, it is connected to poor academic performance. The purpose of this study was to determine the prevalence of ADHD and its effect on their academic performance among medical students.