Actually this is not true, and gum (periodontal) disease is not contagious, explains Danbury, CT. dentist Jay M. Marks, DMD. However, gum disease is an infection of the gums, where they can become red in color, enlarged (swollen), & bleed easily. This condition can advance to periodontitis, where there is recession of the gums, and reduction of the jawbones which keep the roots of the teeth stable. As this progresses, teeth can become loose and eventually fall out. CONTINUE -->
So, the answer to the question is that gum disease is caused by lack of proper oral hygiene. The only way that it would be contagious, is if saliva and bacteria of an infected person was passed on to someone whose gums are already compromised & unhealthy. It is then that prolonged and continued sharing of saliva could lead to further gum disease.
Correct oral hygiene consists of brushing twice daily, using floss once a day, and seeing your dentist at least every 6 months. If you have any questions or concerns, please CONTACT US.