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DentalAnatomyCH1
Dental Anatomy DENT-110
| Question | Answer |
|---|---|
| Abrasion | Mechanical wear on surfaces, caused by continual biting on an object or brushing too hard |
| Active Eruption | Initial eruption period, where the tooth is in its proper alignment and the crown is almost completely exposed |
| Passive Eruption | Recession of the gingival line, exposing more of the tooth later in life |
| Anterior | Teeth in the front of the mouth, including incisors and canine teeth |
| Attrition | Wearing away of the teeth by continual use. Attrition includes bruxism. |
| Dentition | A set of teeth, including both the upper and lower arch |
| Diphyodont | Having two successive sets of dentition |
| Eruption | Appearance of a tooth above the gum |
| Exfoliate | Shedding of primary teeth |
| Heterodont | Having different types of teeth |
| Mastication | Chewing |
| Mixed Dentition | Having some primary and some permanent teeth present in the mouth at the same time |
| Permanent | 32 teeth in the adult mouth. Some replace or succeed primary teeth, and some do not. |
| Polyphyodont | Having several sets of teeth throughout a life, such as reptiles |
| Posterior | Teeth in the back of the mouth, including premolars and molars |
| Primary (deciduous) | Teeth that begin to erupt around 6-8 months, and continue erupting until about 2.5-3 years, completing a set of 20 teeth. Primary teeth will eventually exfoliate and be completely replaced by permanent dentition between the ages of 17-21 |
| Succedaneous | Permanent teeth that replace or succeed primary teeth, including canines, incisors, and premolars. Permanent molars are not succedaneous because they do not replace any primary teeth |
| Edentulous | Teeth missing in a jaw |
| Bicuspid or Premolar | 2 teeth on each side featuring 2 cusps, anterior to molars |
| Canines or Cuspids | Corner teeth used to hold and tear food |
| Incisors | Four front teeth in each arch that have sharp biting edges for cutting food. Central and Lateral |
| Molars | Broad back teeth having several cusps adapted to chew, crush, and grind food. |
| Enamel | The outer layer of a tooth, the hardest substance in the body |
| Dentin | Deep to the enamel, softer layer of the tooth |
| Pulp or Nerve | Inside layer of a tooth |
| Interproximal | In between the teeth |
| D-Distal | Interproximal surface farthest from the midline |
| M-Mesial | Interproximal surface that is toward the midline |
| B-Buccal | Tooth surface near the cheek |
| O-Occlusal | Chewing surface of the posterior teeth |
| F-Facial | Surface nearest the lip on the anterior teeth |
| I-Incisal | Cutting edge of the anterior teeth |
| L-Lingual | Tooth surface nearest the tongue |
| Clinical Crown | Top 1/3 of tooth above the gumline |
| Root | Bottom 2/3 of tooth below the gumline |
| Gingival Tissue | Soft tissue surrounding teeth (gums) |
| Impacted | Any tooth that fails to erupt or grow into proper position |
| Caries | Decay or cavities |
| Congenitally Missing Teeth | Teeth that never formed |
| Supernumerary | Extra tooth, usually an incisor or molar |
Created by:
SonyaP
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