| Term | Definition |
| ARCH WIRE | main wire framework |
| BRACKET | welded or soldered to a band |
| CLOSED BITE | overbite |
| CORRECTIVE ORTHODONTICS | braces |
| DISTOCCLUSION | buck teeth |
| ELASTICS | rubber bands |
| INTERCEPTIVE ORTHODONTICS | space maintainers used in growing children |
| LIGATURE WIRE | fine wire to tie the main arch wire into the braces |
| MACRODONTIA | unusually large tooth |
| MICRODONTIA | unusually small tooth |
| MALOCCLUSION | abnormal or malposition |
| OPEN BITE | incisors do not pass one another on the vertical axis |
| ORTHODONTICS | specialty that deals with the diagnosis and treatment of malocclusions |
| PROGNATHIA | developmental malocclusion |
| PREVENTIVE ORTHODONTICS | appliances to maintain space |
| DEBRIDE | scraping away |
| GINGIVECTOMY | surgical removal of gum tissue |
| GINGIVITIS | inflammation of the gums |
| GINGIVOPLASTY | surgical repair of the gums |
| NECROTIZING ULCERATIVE GINGIVITIS | an infection of the gums |
| OSTEOPLASTY | surgical repair of the alveolar bone |
| PERICORONITIS | inflammation around the crown of a partially erupted tooth |
| PERIODONTICS | specialty that deals with the diagnosis and treatment of the periodontium |
| PERIODONTOSIS | advanced inflammation and destruction of the gingiva |
| SUBLINGUAL CALCULUS | calculus deposited below the gums |
| SULCUS | space between the free gingiva and the tooth |
| SUPRAGINGIVAL CALCULUS | calculus deposited above the gingiva |
| PERIODONTITIS | inflammation of the tissues |
| PERIODONTIUM | tissue that surrounds and supports the teeth |