The dental bone resorption triggers by periodontal disease

Causes of Periodontal disease 

Mouth filled with bacteria. These bacteria gradually form plaque on the teeth. Brushing and flossing help us get rid of this plaque. These patches can not be cleaned should form "Teeth Cleaning". Only polished tooth scaling at the clinic periodically Dental can cleansing "Teeth Cleaning".  With teeth as long as they cling to cause much more harm. The bacteria cause inflammation of the gums, it is called "gingivitis". Gingivitis is when the gums become red  swollen and can bleed easily. The cause of gingivitis is derived from the reduced blood supply to the gum tissue that leads to tooth loss consequences.

Gingivitis - inflammation of periodontal 
When gingivitis is not treated, the interest and will develop into periodontitis patients. By this time the disease is not merely more swollen and bleeding gums gums that gradually slipped away from the teeth, creating deep gum pockets, creating conditions for bacterial growth and exacerbated the extent of the disease. Moreover, if the disease is not treated properly interested, the bones and ligaments surrounding the tooth is gradually destroyed, leaving no room for teeth based, become wobbly and eventually fall out. 
The process of developing gum disease until after periodontitis, and tooth loss occurs slowly (a few years), but almost no signs of pain. Therefore, patients typically are not aware of the status of their dental health until the disease has turned serious stage. 
One thing more dangerous for patients with periodontal inflammation are at risk in tooth decay. The reason is that when benefits dropped to reveal the tooth. Root is surrounded by a thin layer of bone and tooth enamel than soft, so that it is easy to be destroyed by acid bacteria, creating cavities.