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external features
supporting structures
| Question | Answer |
|---|---|
| maxillary arch | upper arch |
| mandibular | lower arch |
| midline | an imaginary line that separtes right and left sides of the mouth |
| quadrants | midline separting the maxillary and mandibular arch= 4 quadrants |
| anterior teeth | 6 teeth per arch includes incisors&canines |
| posterior teeth | 10 per arch includer premolars and molars |
| incisors | cuts and divides |
| canines | pierce and tear hold |
| premolar | crush and grind |
| molars | crush and grind |
| mesial | towards the midline |
| distal | away from midline |
| lingual | towards the tounge (mandibular only) |
| buccal | towards the cheek (posterior only) |
| labial | towards the lip (anterior only |
| occlusal | chewing surface (posterior only) |
| incisal | biting edge (anterior only) |
| palatal | towards the palate(maxillary only) |
| facial | combined term for labial and buccal |
| mastication | chewing |
| aesthetics | apperearance |
| phonectics | speech |
| anatomical crown | entire crown, covered by enamel |
| clinical crown | portion visible above gingiva |
| anatomical root | entire root |
| apex | end (tip) of the root |
| apical foramen | natural opening at the very end of root that allows passage of nerves and blood vessels |
| trifurcated | refers to tooth with 3 roots |
| bifurcated | refers to tooth with 2 roots |
| furcation | the space between roots; the area where they join |
| gingiva | outermost layer of tissue covering the periosteum surrounding the tooth |
| free gingiva | gingiva which is movable and fits around the crown of tooth above the cervix |
| attached gingiva | immobile.lies below epithelial attachment, extending from base of the sulcus to the mucogingival junction |
| gingival crest(gingival margin) | top edge of free gingiva circling the tooth |
| gingival sulcus | space between tooth and free gingiva.extends from gingival crest to epithelial attachment |
| epithelial attachment | point where gingiva becomes attached to the bone. found at the bottom of the sulcus |
| gingival groove | a line separating free and attached gingiva on facial side of gingiva |
| dentition | the number kind and arrangement of an individual's teeth |
| permanent teeth | sencond set of teeth 32 in all |
| deciduous teeth(primary teeth) | baby teeth 20 in all |
| tooth number system | universal numbering system beings upper right |
| 1-32 | permanent teeth |
| a-t | deciduous teeth |
| eruption | process of teeth coming into the mouth |
| exfoliation | normal shedding of primary teeth |
| succedaneous | permanent teeth that replace deciduous teeth |
| nonsuccedaneous | permanent teeth that do not replace deciduous teeth |
| resorption | progressive destruction of the roots of deciduous teeth, caused by occlusal pressure of permanent tooth pressing on the decidous roots |
| interdental papilla | triangular shaped gingiva that extends into the interproximal space |
| interproximal space | wedge shaped area that lies between the proximal surfaces.extends from contact area to interdental papilla |
| contact area | the area on proximal surfaces that actually touch each other |
| long axis | the imaginary vertical line around which the structures of the teeth are symmetrically arranged |
| axial surfaces | surfaces of the teeth that are parallel to the long axis |
| proximal surfaces | surfaces that lie adjacent to each other |
| embrasures | v shaped spaces that extend outward from contact area |
| line angles | divides 2 surfaces |
| point angles | divides 3 surfaces |
Created by:
fernnandezcc
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