FAST REVISION
Physiology
Calcidiol (25 hydroxy cholecalciferol) is a precursor to calcitriol (1,25 dihydroxy vitamin D3), which is the active form of vitamin D. Calcitriol is formed in the kidneys by the action of 1-? hydroxylase and plays a critical role in calcium homeosta
Prosthodontics
Chroma refers to the purity or saturation of a color, distinguishing it from its brightness (value) or hue. In dental color-matching, chroma is an essential factor when selecting materials for aesthetic restorations.
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