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Ch 4 dental anatomy
| Question | Answer |
|---|---|
| The portion of the tooth that is visible in the mouth. | Clinical crown |
| The portion of the tooth covered with enamel. | Anatomic crown |
| Division into two roots. | Bifurcation |
| Division into three roots. | Trifurcation |
| The tapered end of each root tip. | Apex |
| Pertaining to the end portion of the root. | Apical |
| The apex and surrounding area of the tooth. | Periapical |
| Formed by the enamel of the crown and the cementum of the root. | Cementoenamel junction |
| Makes up the anatomic crown of the tooth, which is the hardest material of the body. | Enamel |
| Another term for enamel rods which make up the enamel surface. | Enamel prisms |
| Makes up the main portion of the tooth structure and extends almost the entire length of the tooth. | Dentin |
| Microscopic canals found in dentin. | Dentinal tubules |
| Fibers found in dentinal tubules. | Dentinal fibers |
| The central portion of teeth, made up of blood vessels, nerves, and cellular elements, including odontoblasts, which forms the dentin. | Pulp |
| Major elevation on the masticatory surfaces of canines and posterior teeth. | Cusp |
| Specialized, calcified connective tissue that covers the anatomical root if a tooth. | Cementum |
| Structures that surround, support, and are attached to the teeth. | Periodontium |
| Dense connective tissue organizes into group fibers that connect the cementum covering the root if the tooth with the alveolar bone of the socket wall. | Periodontal ligament |
| The exact spot at which the teeth actually touch each other. | Contact point |
| A triangular space near the gingiva between the proximal surfaces of two adjoining teeth. | Embrasure |
| The natural teeth in the dental arches. | Dentition |
| Without natural teeth; used to describe the condition when the permanent teeth have been lost. | Edentulous |
| The movement of a tooth through the bond and gingival tissue. | Eruption |
| The teeth that erupt first and are replaced by the permanent teeth. | Primary dentition |
| The normal process by which primary teeth are shed. | Exfoliation |
| Removed by a normal body process. | Resorbed |
| Some permanent and some primary teeth. | Mixed dentition |
| Begins when the last primary tooth is shed, after approximately 12 years of age, and includes eruption of all 32 of the permanent teeth. | Permanent dentition |
| Used as a simplified means of identifying the teeth for charting and descriptive purposes. | Numbering systems |
| This numbering system (1-32 permanent teeth and 1-20 primary teeth) behind with the maxillary right and concludes at the mandibular right. | Universal Numbering System |
| This numbering system assigns a two-digit number to each tooth (the first number is the quadrant; second number is the tooth). | International Standards Organization System |
| A recognized method of dental charting used to identify and designate permanent and primary and deciduous teeth within the oral cavity. | Federation Dentaire Internationale |
| A short-hand diagram of the teeth as if the patient's teeth are views from the outside; each of the four quadrants is given its own tooth bracket made up of a vertical line and a horizontal line. | Palmer Notation System |
| The portion of the pulp that lies within the crown portion of the tooth. | Coronal pulp |
| The other portion of the pulp more apically located. | Radicular or root pulp |
| The fibers embedded in cementum; at the other end, they are embedded in bone. These embedded portions become mineralized. | Sharpey's fibers |
| Two arches divided into halves. | Quadrant |
Created by:
britth16