| Word | Meaning |
|---|---|
| Abrasion | The wearing away of tooth surface by brushing too vigorously. Usually evident where gum meets tooth. |
| Abscess | A confined area of pus caused by an infection. |
| Abutment | A tooth, crown or implant, that supports a bridge or denture. |
| Acrylic | A plastic material that is used for making dentures, temporary crowns and bridges. |
| Acute | Rapidly progressing, severe (infection or growth). |
| Adult Teeth | Permanent teeth. |
| Aesthetic | Attractive, appealing or beautiful. |
| Aesthetics | Refers to beauty, and the factors that make something attractive and appealing. |
| Air Abrasion | The blasting of a mixture of air and small metal particles onto a tooth. Used for removing decay or enamel. It can replace the drill for small cavities. |
| Alginate | A spongy plastic material used for taking impressions. |
| Alloy | Dental alloy: A metallic material made up of a mixture of metals and mercury. Used for silver fillings. |
| Alveolar Bone | The supporting bone around the roots of teeth. |
| Alveolar Ridge | The rim of bone remaining after teeth have been extracted. |
| Alveoplasty | The trimming of the bone in the alveolar ridge, in preparation for dentures. |
| Amalgam | A silver filling. It is a combination of mercury mixed with powdered silver, copper and tin. |
| Anaesthesia | A medically induced pain free state. |
| Anaesthetic | A drug that induces a pain free state. |
| Analgesia | The absence or relief of pain. |
| Analgesic | A pain relieving substance. |
| Anatomy | The physical shape and structure (of teeth, jaws, face). |
| Anodontia | Congenital absence of teeth. |
| Anterior Teeth | Front teeth. |
| Apex of Root | End or tip of a root. |
| Apical Abscess | An abscess at the end of a root. |
| Apicectomy | Surgical removal of the end of a root. |
| Arch | The U shaped arrangement or alignment of teeth in the upper and lower jaws. |
| Arch wires | These wires attach to the brackets and act as tracks to guide the movement of the teeth. Arch wires can be metal, clear or tooth coloured. |
| Attrition | The wearing away of the tooth surface by grinding, during chewing. |
| Avulsion | Tooth loss by being knocked out of the mouth. |