7. (Poetry) the repetition of certain sounds or syllables in a verse line. 8. (Music, other) the quiet repetition of a musical phrase. 9. (Instruments) Also called: echo organ or echo stop a manual or stop on an organ that controls a set of quiet pipes that give the illusion of sounding at a distance. 10.
Though the most common reason for a loose tooth in adults is periodontal disease (gum disease); trauma, bite injury or tumor can also cause teeth mobility. Certain amount of tooth mobility is always present and it is natural, as the teeth are not fixed tight in their sockets.
What Causes Teeth to be Infected? An infection of the pulp within your tooth can only happen when foreign substances find their way into the tooth. When you eat food, and your enamel is weak or breached due to dental decay, then the food can penetrate deeply into the inner layers of the tooth.