Oral complications caused by radiation therapy to the head and neck include the following: Fibrosis (growth of fibrous tissue) in the mucous membrane in the mouth. Tooth decay and gum disease. Breakdown of tissue in the area that receives radiation. Breakdown of bone in the area that receives radiation.
A landform is any natural formation of rock and dirt, found on Earth. A landform can be as large as a mountain range, or as small as a hill. It can be as large as a continent, or as small as a pond.
ArÃªte. ArÃªte landforms have 3 main characteristics: Sharp ridge of rock; On a mountain; Formed by glaciers; Example of an ArÃªte Landform: Garden Wall, Glacier National Park, Montana, USA. What is an ArÃªte Landform? An arÃªte is a sharp ridge of rock that is formed between glacially created valleys.