Determination of bone marrow cell morphology in rat.

The skeletal system of the body is responsible for important functions in the human body. In addition to causing movement, this system also plays a role in the production of blood cells and fat storage. Bone marrow is a spongy or viscous tissue that fills the inside of the body's bones.

[A preliminary study on shade matching ability of dental professionals with different background].

Purpose: To investigate the difference of shade matching ability of dental professionals with different educational background using toothguide training box (TTB), and provide information for medical esthetics course in dental school.

Methods: Sixty subjects including 20 dental students, 20 prosthodontics technical students and 20 prosthodontics technicians without color blindness were enrolled in this study. Each participant was asked to match 15 standard shade tabs which have been randomly chosen from Vita 3D-Master shade guide.