Our mouth has a large number of bacteria. Certain disease causing bacteria combine with debris and mucous to form ‘Plaque’. This plaque is tenacious and sticks to your tooth surface. The bacteria strive in the plaque to cause damage to your gums. Plaque further hardens when the calcium and other minerals in your saliva deposits. This is called ‘Tartar’. Plaque bacteria combined with tartar causes gum infection. Smoking increases the risk for a gum infection. Other conditions like diabetes, hormonal changes in women, medications that reduce salivary flow, AIDS and genetic predisposition can increase the risk. Follow proper oral hygiene care that removes plaque regularly.