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.
Treatment of dental pulp (nerve) injuries is called root canal or endodontic treatment. But the type of treatment for a damaged tooth depends on what type of tooth (baby or adult) and its stage of development. Common Causes of a Cracked or Broken Tooth. There are several potential causes of a cracked or broken tooth. 1  Some of these common causes include: 2  Chewing and biting into hard food. 3  Biting on hard objects, such as a pen cap or pencil. 4  Brittle tooth structure caused by root canal therapy.