| A | B |
| Dental Caries | also known as tooth decay, cavities, or caries, is a breakdown of teeth due to activities of bacteria |
| Demineralization | •deprive (teeth or bones) of minerals, causing loss of tooth enamel or softening of the skeleton |
| Plaque | biofilm or mass of bacteria that grows on surfaces within the mouth |
| Gingivitis | mild gum disease. It is an infection caused by germs called bacteria. Gingivitis occurs when there is a buildup of plaque (sticky film) on your teeth and gums. |
| Periodontics | A chronic infection that affects the gums and the bones that support the teeth. Bacteria and the body's own immune system break down the bone and connective tissue that hold teeth in place. |
| Neoplasm | an abnormal growth of tissue, which if it forms a mass, is commonly referred to as a tumor |
| Pericoronitis | is inflammation of the soft tissues surrounding the crown of a partially erupted tooth, including the gingiva and the dental follicle |
| Cyst | a sac of tissue that has either fluid or soft material inside it |
| Erosion | the loss of tooth enamel caused by acid attack |
| Abrasion | the loss of tooth structure by mechanical forces from a foreign element |
| Abscess | a collection of pus that can form inside the teeth, in the gums, or in the bone that holds the teeth in place |
| Attrition | a type of tooth wear caused by tooth-to-tooth contact, resulting in loss of tooth tissue, usually starting at the incisal or occlusal surfaces |