Analytical periodontal evaluation happens when we observe extensive and established inflammation in a patient's gums. Then, we take medical and dental history, and analytical periodogram, which is in fact a detailed record of the condition of the gum around each tooth. These help us to properly estimate the extent of the gum damage and its causes, to make the right diagnosis, to provide the right treatment for each situation, and also to compare the condition of the gums before and after it.