Parts of the crater walls eventually collapse back into the crater, the vent is filled with loose material, and, if the crater still is deeper than the water table, the crater fills with water to form a lake, the lake level coinciding with the water table.
Poor Dentition. My provider likes to use poor dentition in his assessment as a billable diagnosis, however there is not really a good code to select. Sometimes he is referring to a patient who is missing teeth due to poor oral hygiene, sometimes it is a patient with alot of tooth decay, in this case, he is referring to a patient with loose wisdom teeth.
The permanent dentition begins when the last primary tooth is lost, usually at 11 to 12 years, and lasts for the rest of a person's life or until all of the teeth are lost (edentulism). During this stage, third molars (also called  wisdom teeth ) are frequently extracted because of decay, pain or impactions.