Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
34 Cards in this Set
- Front
- Back
|
occulusal curvatures: curve of spee: begins at the tip of the ______ and follows the buccal cusp tips of the premolars/molars going posteriorly when viewed from facial aspect. so curves from front to back 2 dimensional |
canines |
|
|
occulusal curvatures: curve of wilson: the medio-lateral curvature of the occlusla plan of posterior teeth. (goes right/left) 2 dimensional |
m |
|
|
occulusal curvatures: sphere of monson: combination of the curve of spee and the curve of wilson. (makes like a triangle in the mouth). a spee on each side meeting the wilson in the back. |
m |
|
|
reminder definition of marginal ridge: marginal ridges are the mesial and distal terminations of the occlusal surfaces of posterior teeth and the lingual surfaces of the of anterior teeth. |
m |
|
|
continuity of the marginal ridge: the height of the marginal ridges of adjacent teeth in the same arch should be at the same level. if not same level, food gets impacted. the heights and shapes of the of the adjacent marginal ridges directly affect the embrasure form. (symmetrical embrasure form by establishing marginal ridges on adjacent teeth which are similar in height and shape) |
m |
|
|
continuity of of central groove : the central GROOVES of posterior teeth are usually aligned into one continous valley quadrant. This trough allows for a more efficient food flow pattern during mastication. |
m |
|
|
embrasures: the open space between the ____ surfaces of two adjacent teeth in the same arch. they diverge facially or lingually and incisally (occulusally) or cervially from the contact area. |
proximal |
|
|
job of embrasures 1. To serve as a ______ for the food material during mastication. 2. To serve as an integral part of the self-_______ process of the teeth |
spillway cleaning |
|
|
contact areas or points: in each arch, each tooth (except the most posterior) contacts two adjacent teeth. the places where the teeth do touch are called contact areas. (the spaces on either side of the contact point are the embrasures. |
m |
|
|
height of contour: 1. Facial surfaces - The height of contour on the facial surfaces of all anterior and posterior teeth is located in the cervical third. 2. Lingual surfaces: a. Anterior teeth-On the lingual surface of incisors and canines,the height of contour is found in the cervical third. b. Posterior teeth - The lingual height of contour for premolars is occlusal third and molars is located in the middle third picture in answer |
|
|
|
facial line angle: Mesial and distal surfaces of Mandibular posterior teeth are in a rhomboid shape. |
|
|
|
facial line angle Mesial and distal surface of Maxillary posterior teeth (maxillary = trap) |
|
|
|
facial line angle Distal and mesial surfaces of anterior teeth. anterior = triangle from proximal side view |
|
|
|
cervical line (aka = CEJ) RULES: . The cervical line is normally curved (convex) or bulges toward the apical on the facial and lingual surfaces of teeth. 2. The cervical line is normally curved (convex) toward the incisal (occlusal) on the mesial and distal surfaces of teeth. 3. The amount (depth) of cervical line curvature on any individual tooth is normally greater on the mesial, as compared to the distal surface. 4. Cervical lines on adjacent proximal surfaces of adjacent teeth have ap-proximately the same depth of curvature. 5. The depth of the curvature on all surfaces is greatest on central incisors, and decreases posteriorly. |
|
|
|
cervical line explained in english - lol if looking from the proximal sides, CL will curve UP toward the top (incisal/occlusal) part of the tooth. if looking from the lingual/labial-buccal side, the CL will curve DOWN toward the apical (root) portion of the tooth. |
m |
|
|
cervical line in english continued the DEPTH of the CL, is greater on the MESIAL side. depth of CL is greatest at the central incisors and decreases posteriorly. (molars have very little depth compared to incisors). |
m |
|
|
the interproximal space is the triangular shaped area between adjacent teeth in the same arch cervical to the contact area, which is best observed from the facial area. the space is filled with gingival tissue called the ___ _____ |
interdental papilla. |
|
|
roots the CANINE has the ____ and ____ root in both arches |
longest and strongest |
|
|
roots the molars are multirooted to complement the increased size of the occlusal table and their function of _____. the maxillary molars normally possess _____ roots, one lingual and two buccal branches. the mandibular molars normally possess two roots, one mesial and one distal, anterior teeth and premolars normally have single roots. (the maxillary first premolar can normally have two roots, buccal/lingual, and is the exception) |
grinding three |
|
|
Cingulum—Found on the lingual aspect of an anterior tooth. It is a convex mount of enamel localized to the cervical one-third of the crown. is also the fourth lobe |
|
|
|
Fossa—A rounded or angular depression of varying size found on the surface of a tooth 2 fossa in premolar. 3 fossa in molars central fossa pit is where to check for decay. |
|
|
|
Groove—A small linear depression on the surface of atooth.
Developmental groove-Fissure between the cusps on the crown of the tooth. Cusp tips are the initial site where enamel develops. As the enamel develops and spreads laterally, it touches enamel developing from other cusps.This junction forms a developmental groove. Such grooves appear on the labial, buccal, and lingual surfaces, and are least apparent on the labial aspect of anteriors. |
|
|
|
Supplemental groove—A minor, auxiliary groove that branches off from a much more prominent developmental groove. They do not represent the junction of primary tooth parts and gives the occlusal surface a wrinkled appearance. come off the pits |
|
|
|
Ridge—Any linear elevation found on the surface of a tooth, named according to its location or form. |
m |
|
|
Cusp—A pointed or rounded elevation of enamel found on cuspids and on the chewing surfaces of bicuspids and molars. incisor - no cusp premolars - 2/3 cusps molars - 4 or more cusps |
|
|
|
Cusp ridge—Each cusp has four cusp ridges radiating from its tip. They are named according to the direction they take away from the cusp tip (for example, mesial, distal, buccal, or lingual). mesio or disto comes before buccal or lingual for the INCLINES. only the 4 terms are used for the ridges. |
|
|
|
Triangular ridge—Two inclines meet to form a triangular ridge and are located either on a facial or a lingual cusp ridge. normally the cusp ridge which extends toward the central portion of the occlusal service is the triangular ridge. |
|
|
|
Oblique ridge—The only tooth on which an oblique ridge is found is the maxillary molar. Consists of an elevated prominence on the occlusal surface and extends obliquely from the tips of the mesiolingual cusp to the distobuccal cusp |
|
|
|
Transverse ridge—The union of a buccal and lingual triangular ridge that crosses the surface of a posterior tooth transversely (roughly 90° to both the buccal and lingual tooth surfaces). |
|
|
|
Marginal ridge—A linear, rounded border of enamelthat forms the mesial and distal margins of anterior teethas viewed from the lingual, and the mesial and distalborders of occlusal surfaces on posterior teeth |
|
|
|
inclined plane - the sloping area found between the two cusp ridges. |
m |
|
|
mamelons - found on the incisal edges of newly errupted incisors. Get worn away over time. |
m |
|
|
tubercles - mini cusps. cusp of carabelli - a tubercle, usually found on the mesial part of the lingual surface of permanent max first molars. |
m |
|
|
LOBES anterior teeth have ____ lobes premolars have ______ lobes molars have ______ lobes. |
4 4 (sometimes 5) 4 (sometimes 5)
|
