(See also Introduction to Periodontal Disease.) Trench mouth is a painful infection of the gums, causing pain, fever, and sometimes fatigue. If the normal bacteria in the mouth overgrow, the gums can become infected. The gums hurt, and people sometimes have extremely bad breath.
The Elements of Art and Design: A continuous mark made on a surface by a moving point; it may be flat (pencil line) or three-dimensional (a rod, groove, ridge, etc.) Line may be explicit - a line painted along the edge of the road - or implied by the edge of a shape or form.
An artist's characteristic manner of expression. Also, works of art by different artists may have certain features in common. Such works are said to have a group style. Some examples of group styles are art nouveau, expressionism, fauvism, impressionism, rococo, romanticism, social realism, and surrealism. principle of design that refers to a way of combining elements of art in involved ways to achieve intricate and complex relationships. Variety is often obtained through the use of diversity and change by artists who wish to increase the visual interest of their work.