Any condition that affects the gums and other structures supporting your teeth. However, bacteria cause the most common forms of gum diseases. These bacteria grow in a film called dental plaque that sticks on the tooth surfaces next to the gums. The bacteria can cause inflammation and infection. Gum diseases thus begin with bleeding gums, but can lead to tooth loss if allowed to continue. If you’re diagnosed with a gum disease, your periodontist(gum specialist) may recommend periodontal surgery. Periodontal surgery is necessary when your periodontist determines that the tissue around your teeth is unhealthy and cannot be repaired with non-surgical treatment.