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.
A dead pulp means a dead tooth. In many cases, a non-vital dead tooth is removed. Causes of Dead Tooth. There are two known causes of a dead tooth â tooth decay and dental trauma. Tooth Decay. Tooth cavity or bacterial infection, if not treated, can get near the nerve or the pulp, causing the nerve to die.