Month: January 2020

A clasp for a removable dental prosthesis that has a circumferential retainer comprising a wrought wire retentive clasp and a cast reciprocal (stabilizing) arm.  

An orderly arrangement of colors showing graduated change in some attribute or attributes of color as a value scale.  

A number from 1 to 100 given to a light source to indicate its relative equivalence to pure white light which has a color rendering index (CRI) of 100. The closer the number is to 100, the more it resembles pure white light.  

Art and science of combining the attributes of color and color mixtures to include the properties of hue, value, saturation, opacity, translucency, and pigment loading.  

To produce color or color effects. To apply or combine colors to produce an effect. A characteristic of light, arising from the presence of light in greater intensities at some wave lengths than at others in that band of the electromagnetic spectrum from 380 to 770 nanometers, to which the human eye is sensitive. The…

Formation and establishment of population groups of the same type of microorganism, such as in the periodontal pocket. The growth of microorganisms, especially bacteria, in a particular body site. The existence of bacteria on a bodily surface, such as the skin, mouth, intestines, or airway, without inducing illness or disease in the individual. The proliferation…

In the jaw, this refers to paired ligaments that limit motion of the lower jaw within the confines of physiologic motion. Ligaments connect bone to bone and do not stretch, so when working collaterally they limit joint movement. One example of collateral ligaments is in the temporomandibular joint, where they assist in the hinging motion…

Resorbable barrier membrane made of heterogenic collagen, developed for guided tissue regeneration (GTR) or guided bone regeneration (GBR) techniques. The resorption time of collagen membranes can be controlled using methods of collagen cross‐linking.  

Collagen fleece is made from the natural collagen of porcine dermis. The 3D structure of the collagen is preserved by gentle processing and, through the aggregation of thrombocytes, promotes the formation and stabilizing of blood clots during the initial wound healing phase. Collagen fleece is used, for example, to treat soft tissue extraction points and…

A metalloproteinase that catalyzes the breakdown of collagen, a key component of the extracellular matrix. It is also responsible for the cleavage of procollagen, which is secreted by the cell during the normal process of collagen production. Enzymes that break the peptide bonds in collagen. An enzyme that catalyzes the cleavage of collagen. One example…