Category: D

An affective disorder manifested by either a dysphoric mood or loss of interest or pleasure in usual activities. The mood disturbance is prominent and relatively persistent.  

The process or act of neutralizing polarity. In neurophysiology, the reversal of the resting potential in excitable cell membranes when stimulated, i.e., the tendency of the cell membrane potential to become positive with respect to the potential outside the cell. The loss of membrane potential that occurs during electrical signaling in cells such as neurons.…

A purine or pyrimidine base bonded to a deoxyribose containing a bond to a phosphate group.  

A polymer of subunits called deoxyribonucleotides which is the primary genetic material of a cell, the material equivalent to genetic information.  

Substances used to clean dentures; they are usually alkaline peroxides or hypochlorites, may contain enzymes and release oxygen. Use also for sonic action cleaners.  

The property of dentin that permits passage of light, heat, cold, and chemical substances. It does not include penetration by microorganisms.  

A film that attaches to teeth, often causing dental caries and gingivitis. It is composed of mucins, secreted from salivary glands, and microorganisms. A sticky transparent film on the surface of the teeth or other oral structures consisting of colonies of bacteria and sugar as a nutrient for the bacteria. As the bacteria grow and…

Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp. The three most prominent theories used to explain the etiology of the disase are that acids…

Natural teeth or teeth roots used as anchorage for a fixed or removable denture or other prosthesis (such as an implant) serving the same purpose.