1 Dental implants can also promote dental health. 2  When a tooth is missing, the jaw bone is not stimulated, which can cause the bone to deteriorate. 3  An implant stimulates the bone as a natural tooth would, helping to prevent bone loss.
Longitudinal waves, also known as l-waves, are waves in which the displacement of the medium is in the same direction as, or the opposite direction to, the direction of travel of the wave.
In this case, the particles of the medium move parallel to the direction that the pulse moves. This type of wave is a longitudinal wave. Longitudinal waves are always characterized by particle motion being. to wave motion. A sound wave traveling through air is a classic example of a longitudinal wave.