Figure 4: Horizontal X-Y graphs of raw movement data: (a) Dysfunctional. (b) Normal. Because the dysfunctional patient cannot find any efficient chewing path, no two cycles even look similar. As a result, you see a pattern of continuous random paths rather than the consistent pattern of the normal subject. Of course, a fracturing bolus does not result in the very consistent pattern of gum due to the unpredictability of its breakdown.