| Term | Definition |
| dentition | natural teeth |
| maxillary | upper teeth |
| quadrant | half of the denta arch |
| bicuspid | posteror tooth used for tearing or chewing |
| mandibular | lower teeth |
| anterior | toward the front |
| posterior | toward the back |
| proximal | tooth surfaces that are adjacent to each other |
| mucosa | lining of the oral cavity |
| embrasure | V shaped space in the gingival direction between proximal surfaces of adjoining teeth in contact area |
| fissure | deep grove or pit |
| mamelon | rounded prominence on the insizal edge of newlt errupted teeth |
| cingulum | a bulge of enamel in the cervical one third of an interior tooth on the luingual side |
| dorsal | refers to the back side of the body |
| ventral | refers to the front side of the body |
| lamina dura | a thin compact bone that lines the avular socket |
| cementum | bone like covering of the root |
| enamel | hard covering of the crowning of the tooth, the hardest tissue of the body |
| dentin | the bulk of the tooth the main portion |
| apical foraman | opening at the appex of the root of the tooth |
| periodontal ligament | shock absorber that attaches tooth to bone |
| alveolar process | bones surrounding the teeth |
| gingiva | gums, soft tissue surrounding the teeth |
| mastication | the act of chewing |
| mesial | toward the mid line-surface |
| lingual | toward the tounge- surface |
| cervix | neck of the tooth |
| buccal | toward the cheek- surface |
| occlusal | chewing surfaces on posterior teeth |
| salivary glands | 3 pair- sublingual, submandibular, parotid |