Severe receding gums or when gum pull away from the tooth can happen and pockets tend to become deeper and may be filled with pus when periodontitis progresses to the advanced stage. Swelling around the root occurs, tooth sensitivity to hot and cold foods and drinks, experiencing pain during brushing and flossing teeth can become possible. Once the bone loss has already increased, teeth may lose it support making teeth loose and all the dentist have to do is to remove the tooth to be able to preserve the mouth's overall health. Having proper oral hygiene with proper brushing techniques and regular dental visits are the key to promote long-term good dental health.