| A | B |
|---|
| Anatomic crown | covered with enamel |
| Clinical crown | exposed to the oral cavity |
| Enamel | hardest substance in the body; cannot repair itself |
| Enamel mineralization | 96-97% |
| Dentin | bulk of the tooth, can repair itself |
| Dentin mineralization | 70% |
| Pulp | Center of tooth; contains blood & lymph vessels, CT, & nerves |
| Pulp horns | coronal tips of pulp chamber |
| Pulp chamber | portion of pulp; most of chamber is in crown |
| Pulp canals | part of pulp within root(s) |
| Pulp cavity | Entire pulp |
| CEJ | junction of enamel of crown & cementum of root |
| Root | covered with cementum; usually within the alveolar bone |
| Root apex | root tip |
| Apical foramen | opening at or near root apex; foramina is plural |
| Furcation | area where root of multi-rooted tooth divides into two or more roots |
| Root trunk | area of multi-rooted teeth found between the CEJ & furcation |
| Anatomic root | Covered with cementum |
| Clinical root | not exposed to oral cavity |
| Cementum | bone-like substance covering roots |
| Alveolar process (bone) | bone that surrounds & supports the teeth |
| Periodontal ligament | groups of ligaments that attach tooth to the alveolar bone |
| Incisors | anterior teeth designed to cut |
| Canines | anterior teeth; longest teeth; cornerstones; designed to grasp & tear |
| Premolars | posterior teeth between canines & molars; designed to crush |
| Molars | most posterior teeth designed to chew or grind |
| Mesial | surface closest to the midline |
| Distal | surface farthest from the midline |
| Facial | surface closest to the face |
| Labial | facial surfaces of anterior teeth |
| Buccal | facial surfaces of posterior teeth |
| Occlusal | biting/chewing surfaces of posterior teeth |
| Incisal edge or ridge | referring to cutting edge of anterior teeth |
| Proximal | surface of a tooth next to an adjacent tooth |
| Contact area | where proximal surfaces of two adjacent teeth touch |
| Contact point | point where an occlusal/incisal surface of a maxillary tooth touches a mandibular tooth |
| Line angle | junction of two surfaces of the same tooth |
| Point angle | junction of three surfaces of the same tooth |
| Cusp | pointed or rounded elevation of the occlusal surface of a posterior tooth |
| Developmental grooves | linear depression or groove on a surface of a tooth |
| Supplemental grooves | smaller linear depressions or grooves on a surface of a tooth |
| Tubercle | small extra elevation of enamel on a tooth |
| Fossa | depression |
| Cingulum | lingual elevation (heright of contour) in the cervical 1/3 of anterior teeth |
| Pit | pinpoint depression on the surface of a tooth |
| Ridge | linear elevation on a tooth crown |
| Marginal ridge | ridge on the mesial or distal border of an occlusal surface of a posterior tooth; mesial or distal border on the lingual surface of anterior teeth |
| Concavity | concave depression on a tooth |
| Convexity | elevated or bulging area on a tooth |
| Triangular ridge | main ridge running from a cusp tip toward the center of the occlusal surface of a tooth |
| Transverse ridge | ridge formed by the union of two triangular ridges; linear elevation that crosses the occlusal surface |
| Oblique ridge | transverse ridge that crosses the occlusal surface at an angle |
| Lobes | growth centers of teeth |
| Height of contour | largest bulge or convexity on a designated surface of a tooth |
| Curvature of the CEJ | manner in which the CEJ curves toward the incisal/occlusal on proximal surfaces |
| CEJ | cervical line |
| Interdental spaces | spaces located between teeth cervical to the contact areas |
| Iinterproximal spaces | space between proximal surfaces |
| Embrasures | spaces between teeth that allow food to flow off |
| Cervical or gingival embrasure | void or space that occurs when the interdental gingiva does not fill the entire interdental space |
