(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.
Pattern is one of the principles of art. Artists create pattern by repeating a line, shape or. color over and over again. Lines create patterns on the headdress of the Golden Effigy of King Tutenkhaman. In Water Lilies, Claude Monet repeats the pattern of water lilies floating on the pond.