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a) branch of biology that deals with the forms and structures of animals and plants b) the form and structure of an organism or any of its parts |
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branch of morphology that deals with the structure of organisms |
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1) the technical or special terms used in a business, art, science or special subject 2) nomenclature as a field of study |
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1) NAME, DESIGNATION 2) the act or process or an instance of naming 3) a) a system of set of terms or symbols, esp in a particular science, discipline or art b) an international system of standardized New Latin names used in biology for kinds and groups of kinds of animals and plants |
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number of sets of teeth humans have during lifetime |
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animal with 2 successive sets of teeth |
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animal with many successive sets of teeth |
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primary/decidous teeth begin to form when? |
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prenatally about 14 weeks in utero |
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number of teeth in primary dentition |
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20; 10 in maxilla, 10 in mandible |
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in deciduous teeth, how many in each quadrant? |
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5: 2 incisors, one canine, 2 molars |
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when do the first primary teeth emerge in the oral cavity? |
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mean 8 months, avg--6-12 months |
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what are the first primary teeth that emerge? |
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mandibular central incisors |
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at what age do the last primary teeth emerge in the oral cavity? |
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what are the last primary teeth to emerge in the oral cavity? |
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at what age do the first permanent teeth begin erupting in oral cavity? |
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what are the first permanent teeth that emerge in the oral cavity? |
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mandibular first molars, distal to primary teeth, "6 year molars" *some children have mandibular incisors that emerge first* |
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eruption of permanent teeth begins what? |
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mixed dentition/transition period |
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how long does the mixed dentition period last? |
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when does the permanent dentition period begin? |
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when permanent 2nd molars start to erupt and primary molars are replaced by permanent premolars |
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mean age for permanent dentition period? |
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when is the eruption of permanent teeth completed? |
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14-15 years old, except for 3rd molars |
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at what age are the third molars usually completed? |
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primary teeth also known as? |
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deciduous teeth, baby teeth, milk teeth |
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permanent teeth also known as? |
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secondary teeth, succedaneous teeth |
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what is the formula for primary teeth? |
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dental formula for permanent teeth? |
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I 2/2 C 1/1 P 2/2 M 3/3 = 18 (on one side) |
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Zsigmondy/Palmer system of tooth numbering for permanent teeth |
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87654321 12345678 87654321 12345678 |
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Zsignomndy/Palmer notation for primary teeth |
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2 digit system proposed by FDI for permanent teeth |
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18 17 16 15 14 13 12 11 21 22 23 24 25 26 27 28 48 47 46 45 44 43 42 41 31 32 33 34 35 36 37 38 |
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2 digit system proposed by FDI for primary teeth |
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55 54 53 52 51 61 62 63 64 65 85 84 83 82 81 71 72 73 74 75 |
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universal system of numbering for permanent dentition |
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universal system for numbering primary dentition |
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part of tooth that can be seen in oral cavity |
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part of tooth covered by gingiva |
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part of crown that is covered with enamel |
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part that is covered with the cementum |
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cervical line/cementoenamel junction (CEJ) |
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divides the anatomical root and anatomical crown |
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what anchors tooth to bone? |
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projections in roof of pulp chamber correspond to major cusps or lobes |
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the crown portion of a tooth that contains the pulp tissues |
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root portion of tooth that contains pulp tissue |
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area of multi-rooted tooth that root divides |
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area of the root between CEJ and furcation |
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portion of jaw serving as support for tooth |
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towards the adjacent teeth |
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the chewing surface/the surface that comes in contact with opposing teeth |
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of, relating to, or occurring at the root of a tooth |
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of, relating to, or occurring at the crown on a tooth |
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one of the primary sections of formation in development of the crown |
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structures representative of lobes? |
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cusps, cingulum, mamelons |
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an elevation of the crown produced by an extra formation of enamel, usually used when deviation from typical form |
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how many line angles are in anterior teeth? names? |
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6--labioincisal, mesiolingual, mesiolabial, linguoincisal, distolingual, distolabial |
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how many line angles are there in posterior teeth? names? |
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8--mesio-occlusal, mesiolingual, mesiobuccal, bucco-occlusal, linguo-occlusal, distolingual, distobuccal, distoocclusal |
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how many point angles are there in all teeth? names? |
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4: anterior teeth: mesiolabioincisal, mesiolingualincisal, distolabioincisal, distolingualincisal posterior teeth: mesiolinguo-occlusal, mesiobucco-occlusal, distolinguo-occlusal, distobucco-occlusal |
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"empty" triangular spaces surrounding proximal contact |
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interdental papilla (IDP) |
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cervical or gingical embrasures contain this part of gingiva |
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2 purposes for embrasures |
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1) provide a spillway for food 2) prevent food from being forced into contact areas |
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