(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.
Design elements. See also: Elements of art. Design elements are the basic units of a painting, drawing, design or other visual piece and include: Author Maitland Graves in The Art of Color and Design, 1951, McGraw-Hill Book Co., Inc. defines the elements of design as: Line, Direction, Shape, Size, Texture, Value and Color - in that order.