/327 30 Dental Anatomy Preparation (Dr. Chan Borey) 1 / 327 1) Eruption αααα Permanent mandibular canine ααΊα: a. 9 – 10 years b. 6 – 7 years c. 8 – 9 years d. 11 -12 years 2 / 327 2) Anatomical crown of tooth is? a. Portion of tooth wich is visible in mouth b. Portion of tooth wich is covered by enamel c. Portion crown of tooth wich is visible in mouth d. Portion of tooth may or may not correspond to anatomical croun 3 / 327 3) The identifying number of permanent mandibular left canine in the universal numbering system is: a. 33 b. 3 c. 43 d. 22 4 / 327 4) Completion of crown αααα Permanent maxillary second premolar ααΊα: a. 10 – 11 years b. 6-7 years c. 5 – 6 years d. 11 – 12 years 5 / 327 5) International FDI numbering system αααα Permanent maxillary lateral incisor left ααΊ : a. 22 b. 12 c. 42 d. 32 6 / 327 6) Mesiodistal diameter at cervical line αααα Permanent maxillary second premolar: a. 5 mm b. 4.5 mm c. 5.3 mm d. 4.3 mm 7 / 327 7) First evidence of calcification αααα Permanent first maxillary premolar ααΊα: a. 1.5-2.75 years b. 1-2 years c. 1.5 – 1.75 years d. 3-4 years 8 / 327 8) International FDI numbering system αααα Permanent mandibular first molar left ααΊ : a. 16 b. 26 c. 46 d. 36 9 / 327 9) Root length αααα Permanent maxillary central incisor: a. 13.5 mm b. 12 mm c. 13 mm d. 12..5 mm 10 / 327 10) Initial of calcification αααα Permanent mandibular third molar ααΊα a. 6 – 7 Years b. 9-10 years c. 2 1β4 – 2 1β2 years d. 8-10 years 11 / 327 11) Root completion αααα Permanent maxillary canine ααΊ: a. 11-12 years b. 12-14 years c. 13-15 years d. 11 years 12 / 327 12) Cervico-occlusal Length of Crown αααα Permanent maxillary second premolar: a. 8.5 mm b. 8.2 mm c. 8.3 mm d. 8.8 mm 13 / 327 13) Tubercle of Carabelli is found on the lingual surface of ML cusp αααα: a. Maxillary second molar b. Mandibular second molar c. Mandibular first molar d. Maxillary fist molar 14 / 327 14) Universal numbering system αααα Permanent maxillary first molar left ααΊ : a. 26 b. 3 c. 16 d. 14 15 / 327 15) Root completion αααα Permanent mandibular first molar ααΊα a. 5-6 years b. 10 – 11 Years c. 9- 10 years d. 6Years 16 / 327 16) Crown completion αααα Permanent maxillary canine ααΊ: a. 7-8 years b. 6-7 years c. 4-5 years d. 9-10 years 17 / 327 17) Enamel completed αααα Permanent maxillary lateral incisor ααΊα a. 10-12 years b. 8-9 years c. 11 years d. 4-5 years 18 / 327 18) International FDI numbering system αααα Permanent maxillary lateral incisor right ααΊ : a. 42 b. 12 c. 22 d. 32 19 / 327 19) In the permanent dentition, the maxillary second premolar is the fifth tooth from : a. The maxillary central incisor in each quadrant. b. The midline in each upper quadrant. c. The maxillary central incisor in each upper quadrant. d. The midline in each lower quadrant. 20 / 327 20) Length over all αααα Permanent maxillary central incisor: a. 23.5 mm b. 22 mm c. 22.5 mm d. 23 mm 21 / 327 21) Eruption αααα Permanent maxillary lateral incisor ααΊα a. 4-5 years b. 10-12 years c. 11 years d. 8-9 years 22 / 327 22) αααααααα Mixed dentition ααΆααΉαααΆαααααααααααααααΎα: a. Mal posed teeth, Crowding of the teeth, Different colors and hues b. Different colors and hues c. Crowding of the teeth and mal posed teeth d. Permanent first molar αα»αα αα, Different colors and hues 23 / 327 23) Enamel completion αααα Permanent maxillary first premolar ααΊα: a. 10 – 11 years b. 11 – 12 years c. 5 – 6 years d. 4 -5 years 24 / 327 24) The rounded eminences prominent in the newly erupted incisors on the incisal edges are called? a. Lobe b. Mamelons c. Cusps d. Tubercle 25 / 327 25) When viewed from buccal aspect the form of the maxillary first premolar is ? a. Pentagonal b. Rhomboidal c. Rectangular d. Trapezoidal 26 / 327 26) International FDI numbering system αααα Permanent mandibular third molar left ααΊ : a. 18 b. 48 c. 38 d. 28 27 / 327 27) FDI numbering system αααα Permanent mandibular first molar left ααΊ : a. 26 b. 19 c. 36 d. 30 28 / 327 28) When we observe from buccal aspect, in permanent mandibular first molar, the point of furcation of the two roots is located approximately? a. 4mm below the cervical line b. 5mm below the cervical line c. 2mm below the cervical line d. 3mm below the cervical line 29 / 327 29) Labiolingual diameter at cervical line αααα Permanent maxillary central incisor: a. 7 mm b. 6 mm c. 6.5 mm d. 7.5 mm 30 / 327 30) Universal numbering system αααα Permanent mandibular canine right ααΊ :: a. 27 b. 43 c. 22 d. 13 31 / 327 31) Where are the mandibular teeth located? a. Lower jaw b. Anterior c. Upper jaw d. Posterior 32 / 327 32) The identifying number of permanent maxillary right second premolar in the FDI numbering is: a. 25 b. 15 c. 14 d. 44 33 / 327 33) Mesiodistal diameter at cervical line αααα Permanent maxillary lateral incisor: a. 6 mm b. 5.5 mm c. 5 mm d. 6.5 mm 34 / 327 34) When viewed from buccal aspect, the maxillary premolars resemble ? a. Permanent mandibular canine b. Permanent maxillary first molar c. Permanent maxillary canine d. Permanent maxillary central incisor 35 / 327 35) Universal numbering system αααα Permanent mandibular second molar right ααΊ : a. 37 b. 18 c. 31 d. 47 36 / 327 36) Mesiodistal diameter at cervical line αααα Permanent maxillary central incisor : a. 7 mm b. 8.5 mm c. 7.5 mm d. 8 mm 37 / 327 37) Crown completion αααα Permanent maxillary second molar ααΊα a. 3-4 years b. 12 Years c. 5-6 Years d. 7-8 years 38 / 327 38) αα αααβ Occlusal surface αααα Maxillary molars ααααααααααΎαααΆα4 Cusps αααααΆαααα αααΆαααααΆααααΊ: a. DB >MB> ML >DL b. ML>MB> DB>DL c. MB>ML> DB>DL d. ML >DL> DB >MB 39 / 327 39) Permanent maxillary second premolars ααΊααΆ Succedaneous tooth ααααα»ααααα½α: a. Deciduous maxillary second premolar b. Deciduous maxillary first premolar c. Deciduous maxillary first molar d. Deciduous maxillary second molar 40 / 327 40) Which of the following roots is the largest permanent maxillary first molar ? a. Mesiobuccal root b. Distobuccal root c. Lingual root d. Buccal root 41 / 327 41) Which of the following cusps is the largest in the permanent maxillary first molar ? a. Mesiolingual b. Distobuccal c. Mesiobuccal d. Distolingual 42 / 327 42) Cervico-occlusal Length of Crown αααα Permanent maxillary first premolar: a. 9.5 mm b. 9 mm c. 8 mm d. 8.5 mm 43 / 327 43) Completion of enamel αααα Permanent mandibular first molar ααΊα a. 2 1β2 – 3 Years b. 3-4 years c. 6 Years d. 7-8 years 44 / 327 44) What number refers to the lower right canine tooth (American numbering system)? a. 22 b. 27 c. 32 d. 28 45 / 327 45) International FDI numbering system αααα αααα Permanent mandibular first premolar left ααΊ :: a. 34 b. 21 c. 14 d. 28 46 / 327 46) First evidence of calcification αααα Permanent mandibular canine ααΊα: a. 5-6 months b. 4-5 months c. 2-3 months d. 1-2 years 47 / 327 47) Universal numbering system αααα Permanent mandibular central incisor right ααΊ : a. 25 b. 24 c. 41 d. 31 48 / 327 48) Cervico-incisal of crown length αααα Permanent mandibular lateral incisor: a. 10 mm b. 10.5 mm c. 9 mm d. 9.5 mm 49 / 327 49) Length over all αααα Permanent maxillary second premolar: a. 23 mm b. 22 mm c. 23.5 mm d. 22.5 mm 50 / 327 50) Root length αααα Permanent maxillary first premolar: a. 14.5 mm b. 15 mm c. 15.5 mm d. 14 mm 51 / 327 51) Universal numbering system αααα Permanent mandibular second premolar right ααΊ :: a. 45 b. 35 c. 20 d. 29 52 / 327 52) International FDI numbering system αααα Permanent maxillary second premolar right ααΊ : a. 4 b. 15 c. 25 d. 13 53 / 327 53) Anatomical landmarks αα ααΎ Occlual surface crown of Permanent maxillary first molar ααααααααααΎα: a. Depression, Developmental grooves, Supplemental groove, Fossa b. Elevations and depression c. Cusps, Marginal ridge, Tubercle, Groove d. Elevations, Cusps, Marginal ridge, Tubercle, Oblique ridge 54 / 327 54) Root length αααα Permanent mandibular central incisor: a. 13.5 mm b. 13 mm c. 12.5 mm d. 11.5 mm 55 / 327 55) Labial surfaceααCrown αααα Maxillary canine ααΆαααΆαα a. Cusp, Labial ridge and developmental groove b. ααααααΆααααΆα Mesiodistally and inciso-cervically c. Elevation and Depression d. ααααααΆααααΆα Mesial and Distal 56 / 327 56) In which direction does the palatal root of the upper first molar usually curve towards: a. Facial / buccal/ b. Mesial c. Distal d. Lingual 57 / 327 57) International FDI numbering system αααα Permanent maxillary second molar right α:αΊ a. 27 b. 15 c. 2 d. 17 58 / 327 58) Eruption αααα Permanent maxillary first molar ααΊα a. 5 – 6 Years b. 6 years c. At birth d. 6-7 years 59 / 327 59) Permanent mandibular central and lateral incisor ααΆα: a. αααααα Anatomy ααΌα ααααΆαα·αααααααα»αααΆαα²ααααααΆαα αα·ααα αα b. αααααα Anatomy ααΌα ααααΆαα·ααα·αααααααα»αααΆαα²ααααααΆαα αα·ααα αααα c. αααααα Anatomy αα»αααααΆαα·αααααααα»αααΆαα²ααααααΆαα αα·ααα αα d. αααααα Anatomy αα»αααααΆαα·ααα·αααααααα»αααΆαα²ααααααΆαα αα·ααα αααα 60 / 327 60) In the permanent dentition, the mandibular second premolar is the fifth tooth from : a. The midline in each lower quadrant b. The mandibular central incisor in each upper quadrant. c. The midline in each upper quadrant d. The mandibular central incisor in each quadrant. 61 / 327 61) The premolars are located in what relationship to the canines? a. Mesial to them b. Distal to them c. Facial to them d. Lingual to them 62 / 327 62) Which of the following is the last succedaneous tooth the erupt ? a. Maxillary first premolar b. Mandibular canine c. Mandibular first premolar d. Maxillary canine 63 / 327 63) Length of root ααΆα buccal αααα Permanent maxillary first molar: a. 12.5 mm b. 13.5 mm c. 13 mm d. 12 mm 64 / 327 64) Which of the following is generally the longest root of maxillary permanent first molar? a. Distobuccal b. Palatal c. Distal d. Mesial 65 / 327 65) Permanent mandibular second premolars ααΊααΆ Succedaneous tooth ααααα»ααααα½α: a. Deciduous mandibular first molar b. Deciduous mandibular second molar c. Deciduousmandibularsecond premolar d. Deciduous mandibular first premolar 66 / 327 66) Which of the followings is the smallest root in permanent maxillary first molar ? a. All the roots have same length b. Mesiobuccal root c. Palatal root d. Distobuccal root 67 / 327 67) Eruption αααα Permanent maxillary third molar ααΊα a. 17-21 years b. 12-16 years c. 18 – 25 Years d. At birth 68 / 327 68) Crown shape from occlusal surface of maxillary molars are : a. Square /parallelogram b. rectangular/ parallelogram c. Rectangular/pentagonal d. Square / pentagonal 69 / 327 69) Line angle ααααΌαααΆααααααΎαα‘αΎαααα: a. Surfaces ααΈαααααααααααΆ b. Surfaces ααΈααααααααααααΆ c. Point angle αα½α αααααααααααΆ Surfaces ααΈα d. Surfaces αα½ααααααααααααΆ ααΉα Point angle αα½α 70 / 327 70) Mesiodistal diameter at cervical line αααα Permanent mandibular canine: a. 4.5 mm b. 5.5 mm c. 4 mm d. 5 mm 71 / 327 71) Root length αααα Permanent mandibular canine : a. 16.5 mm b. 16 mm c. 17.5 mm d. 17 mm 72 / 327 72) Completion of enamel αααα Permanent mandibular second molar ααΊα a. 3-4 years b. 2 1β2 – 3 Years c. 7-8 years d. 6 Years 73 / 327 73) Which of the following sequence of eruption of permanent teeth is normally seen in the maxilla ?: a. 1, 6, 2, 4, 3, 5, 7, 8 b. 6, 1, 2, 3, 4, 5, 7, 8 c. 6, 1, 2, 4, 3, 5, 7, 8 d. 1, 6, 2, 3, 4, 5, 7, 8 74 / 327 74) International FDI numbering system αααα Permanent maxillary canine right ααΊ : a. 6 b. 11 c. 13 d. 23 75 / 327 75) αα αααααααΎ Cervical cross section αα ααΎ Maxillary central incisor, Pulp cavity ααΆαααΆαα a. αααααααΎ b. ααΌα c. ααΌααααααα d. ααααΈααα 76 / 327 76) How many molars are located in each arch? a. 6 b. 3 c. 12 d. 2 77 / 327 77) Length of root ααΆα lingual αααα Permanent maxillary first molar: a. 13 mm b. 12 mm c. 13.5 mm d. 12.5 mm 78 / 327 78) First evidence of calcification αααα Permanent maxillary lateral incisor ααΊα a. 2-3 months b. 10-12 months c. 4-5 years d. 8-9 years 79 / 327 79) Which of the following root is the largest in permanent maxillary molar? a. Lingual root b. Mesiobuccal root c. Buccal root d. Distobu ccal root 80 / 327 80) Crown shape from occlusal surface of mandibular molars are : a. Square /parallelogram b. Square / pentagonal c. Rectangular/pentagonal d. Rectangular/ parallelogram 81 / 327 81) Universal numbering system αααα Permanent maxillary first premolar left ααΊ :: a. 5 b. 4 c. 12 d. 14 82 / 327 82) From the occlusal aspect of permanent mandibular second premolar ααααααααααΎαααΆα: a. 3-cusp type appears pentagon and the 2-cusp type appears rounded. b. 3-cusp type appears square and the 2-cusp type appears rounded c. 3-cusp type appears parallelogram and the 2-cusp type appears rounded. d. 2-cusp type appears square and the 1-cusp type appears ovoid. 83 / 327 83) The oblique ridge is found in permanent maxillary first molar that crosses the occlusal surface obliquely. It is formed by the union of ? a. Triangular ridge of distolingual cusp and distal ridge of mesiolingual cusp b. Triangular ridge of distobuccal cusp and distal ridge of mesiolingual cusp c. Triangular ridge of mesiobuccal cusp and distal ridge of mesiolingual cusp d. Triangular ridge of distobuccal cusp and mesial ridge of mesiolingual cusp 84 / 327 84) Completion of enamel αααα Permanent mandibular third molar ααΊα a. 17 – 21 Years b. 18-25 years c. 12-16 years d. 16-21 Years 85 / 327 85) Permanent dentition ααΆαααα»αααααα: a. ααΎαααΈα’ααΆααααααΆααΆα α£α’ ααααα αα·α α αΆααααααΎααα»αααΈα’αΆαα»α§ααααΆααα α’α‘ ααααΆα b. ααΎαααΈα’ααΆααααααΆααΆα α£α’ ααααα αα·α α αΆααααααΎααα»αααΈα’αΆαα»α¦αααα α’α‘ ααααΆα c. ααΎαααΈα‘ααΆααααααΆααΆα α£α’ ααααα αα·α α αΆααααααΎααα»αααΈα’αΆαα»α¦ααααΆααα α’α‘ ααααΆα d. ααΎαααΈα’ααΆααααααΆααΆα α£α’ ααααα αα·α α αΆααααααΎααα»αααΈα’αΆαα»α¦ααααΆααα α’α‘ ααααΆα 86 / 327 86) Mesiodistal diameter of crown at contact area αααα Permanent mandibular first premolar: a. 7.2 mm b. 6.5 mm c. 7 mm d. 6.2 mm 87 / 327 87) Universal numbering system αααα Permanent maxillary second molar left ααΊ : a. 15 b. 27 c. 17 d. 2 88 / 327 88) αα αααα»α Numbering FDI system ααααααααα’α§ααααΆαα²ααα a. Permanent maxillary left second molar b. Permanent maxillary right first molar c. Permanent mandibular left second molar d. Permanent mandibular right first molar 89 / 327 89) Labiolingual diameter of cervix αααα Permanent mandibular central incisor: a. 5.5 mm b. 5.1 mm c. 4.5 mm d. 5.3 mm 90 / 327 90) Universal numbering system αααα Permanent maxillary central incisor right ααΊ : a. 11 b. 1 c. 9 d. 8 91 / 327 91) Length over all αααα Permanent mandibular second premolar: a. 22.5 mm b. 23.5 mm c. 23 mm d. 22 mm 92 / 327 92) Universal numbering system αααα Permanent mandibular first premolar left ααΊ :: a. 12 b. 21 c. 28 d. 14 93 / 327 93) Root completion αααα Permanent maxillary first premolar ααΊα: a. C. 11-12 years b. 12 – 13 years c. 12 years d. 13-15 years 94 / 327 94) Mesiodistal diameter of crown αααα Permanent maxillary lateral incisor : a. 7 mm b. 7.5 mm c. 6 Cm d. 6.5 mm 95 / 327 95) International FDI numbering system αααα Permanent maxillary second premolar left ααΊ : a. 4 b. 13 c. 35 d. 25 96 / 327 96) The combined mesiodistal width of the three mandibular molars on one side make up : a. 51% of the mesiodistal dimension of mandibular quadrant b. 51% of the mesiodistal dimension of their mandibular arch c. 51% of the mesiodistal dimension of their arch d. 51% of the mesiodistal dimension of their quadrant 97 / 327 97) International FDI numbering system αααα Permanent maxillary second molar left ααΊ : a. 37 b. 17 c. 47 d. 27 98 / 327 98) What tissue covers the outer surface of the crown of the tooth? a. Dentin b. Cementum c. Pulp d. Enamel 99 / 327 99) Which tooth tissue contains the blood vessels and nerves of the tooth? a. Pulp b. Dentin c. Enamel d. Cementum 100 / 327 100) Mesiodistal diameter of crown at contact area αααα Permanent mandibular canine: a. 6.5 mm b. 7 mm c. 6 mm d. 7.5 mm 101 / 327 101) Root completion αααα Permanent maxillary central incisor ααΊα a. 10-11 years b. 3-4 months c. 2-3 months d. 4-5 years 102 / 327 102) Labio- or Bucco-lingual diameter at cervical line αααα Permanent maxillary first molar: a. 9 mm b. 9.5 mm c. 10 mm d. 10.3 mm 103 / 327 103) When a buccal and a lingual triangular ridge joint, they form as? a. Marginal ridge b. Triangular ridge c. Incisal ridge d. Transverse ridge 104 / 327 104) Length over all αααα Permanent mandibular lateral incisor: a. 23 mm b. 23.5 mm c. 22 mm d. 22.5 mm 105 / 327 105) Labio- or Bucco-lingual diameter at cervical line αααα Permanent mandibular first premolar: a. 8.5 mm b. 8.8 mm c. 8.3 mm d. 8 mm 106 / 327 106) Initial of calcification αααα Permanent mandibular first premolar ααΊα: a. 1.5 – 1.75 years b. 3-4 years c. 1 3β4 – 2 Years d. 2-2.5 years 107 / 327 107) International FDI numbering system αααα Permanent mandibular lateral incisor right ααΊ : a. 42 b. 32 c. 22 d. 23 108 / 327 108) International FDI numbering system αααα Permanent mandibular central incisor right ααΊ : a. 31 b. 41 c. 25 d. 22 109 / 327 109) Root length αααα Permanent maxillary lateral incisor : a. 13.5 mm b. 13 mm c. 11.5 mm d. 12 mm 110 / 327 110) Labiolingual diameter of crown αααα Permanent mandibular lateral incisor : a. 6.5 mm b. 7 mm c. 6 mm d. 7.5 mm 111 / 327 111) Labiolingual diameter at crest of curvature αααα Permanent mandibular canine : a. 8 mm b. 7.5 mm c. 7 mm d. 8.5 mm 112 / 327 112) Permanent mandibular incisors ααΆααΌαα : a. ααΆααααααΈα α»αααΈααΌα αα ααααΊααΈα‘ ααΌα ααΆαααΈ α’ b. ααΆααααααΈα‘αΎαααΈαααα ααΌα ααΊααΈα‘ ααααΆαααΈ α’ c. ααΆααααααΈα α»αααΈαααα ααΌα ααΊααΈα‘ ααααΆαααΈ α’ d. ααΆααααααΈα‘αΎαααΈααΌα αα ααααΊααΈα‘ ααΌα ααΆαααΈ α’ 113 / 327 113) Universal numbering system ααMaxillary central incisor ααΊ: a. 8, 9 b. 41, 51 c. 21, 22 d. 11,21 114 / 327 114) Root length αααα Permanent maxillary second premolar: a. 14.3 mm b. 14.5 mm c. 13.5 mm m d. 14 mm 115 / 327 115) Crown length αααα Permanent mandibular central incisor: a. 9.5 mm b. 10 mm c. 10.5 mm d. 9 mm 116 / 327 116) Universal numbering system αααα Permanent maxillary canine left ααΊ : a. 43 b. 6 c. 11 d. 13 117 / 327 117) Mesiodistal diameter of crown at contact area αααα Permanent maxillary first premolar : a. 6.5 mm b. 6 mm c. 5.5 mm d. 7 mm 118 / 327 118) Length over all αααα Permanent mandibular canine : a. 27 mm b. 27.5 mm c. 26 mm d. 26.5 mm 119 / 327 119) Labio- or Bucco-lingual diameter of crown αααα Permanent maxillary first molar: a. 12 mm b. 10.5 mm c. 11 mm d. 10 mm 120 / 327 120) Maxillary central incisor ααΆα Mesial surface ααααααΆααΆααααΉα: a. Mesial surface ααMaxillary central αα½αααα b. Distal surface ααMaxillary central αα½αααα c. Mesial surface ααMaxillary lateral d. Distal surface ααMaxillary lateral 121 / 327 121) Eruption αααα Permanent maxillary first premolar ααΊα: a. 9 – 10 years b. 12 – 13 years c. 11 -12 years d. 10 – 11 years 122 / 327 122) Mesiodistal diameter of crown at contact area αααα Permanent mandibular lateral incisor: a. 4.5 mm b. 5.5 mm c. 6.5 mm d. 6 mm 123 / 327 123) Root length αααα Permanent mandibular second premolar: a. 14.5 mm b. 14 mm c. 14.3 mm d. 13.5 mm 124 / 327 124) When we see from the occlusal aspect in the permanent maxillary second molar is ? a. Rhomboidal or Heart-shaped b. Rhomboidal c. Parallelogram d. Heart-shaped 125 / 327 125) Universal numbering system αααα Permanent maxillary first molar right ααΊ : a. 26 b. 3 c. 16 d. 6 126 / 327 126) αααααααααα Succedaneous ααΆααα’ααα a. ααΆ Primary teeth b. ααΆ Permanent teeth and primary teeth c. αα·ααααααΆ Permanent teeth d. ααΆ Permanent teeth 127 / 327 127) Mesiodistal diameter at cervical line αααα Permanent maxillary first premolar: a. 4 mm b. 4.5 mm c. 5 mm d. 5.5 mm 128 / 327 128) Lingual fossa of maxillary central αααα·ααα α: a. α ααααα Marginal ridges αα·αααααα Cingulum b. α ααααα Marginal ridges c. ααααα Cingulum d. ααΎCingulum 129 / 327 129) Root completion αααα Permanent maxillary lateral incisor ααΊα a. 8-9 years b. 11 years c. 10-11 years d. 4-5 years 130 / 327 130) How many teeth are in the primary dentition? a. 32 b. 20 c. 50 d. 10 131 / 327 131) At the age of nine years, the mandibular permanent first molar has its distal contact with which of the following teeth? a. Second deciduous b. No distal contact c. First premolar d. Second permanent molar 132 / 327 132) Initial of calcification αααα Permanent maxillary third molar ααΊα a. At birth b. 12-16 years c. 7 – 9years d. 18-25 years 133 / 327 133) Mesiodistal diameter at cervical line αααα Permanent mandibular first premolar : a. 4.3 mm b. 5.3 mm c. 5 mm d. 4.5 mm 134 / 327 134) Anatomical root of tooth is ? a. Portion of root wich is not visible in mouth b. Portion of tooth wich is covered with cementum c. Portion of tooth wich is not visible in mouth d. Portion of root is covered with cementum 135 / 327 135) Length over all αααα Permanent maxillary canine : a. 27.5 mm b. 26 mm c. 26.5 mm d. 27 mm 136 / 327 136) Permanent maxillary second molar has ? a. 5 cusps b. 5 cusps or 3 cusps c. 4 cusps d. 4 cusps or 3 cusps 137 / 327 137) Root length αααα Permanent mandibular first premolar: a. 14.5 mm b. 13.5 mm c. 14 mm d. 14.3 mm 138 / 327 138) Labio- or Bucco-lingual diameter at crest of curvature αααα Permanent maxillary second premolar: a. 9.5 mm m b. 9 mm c. 8.5 mm d. 8 mm 139 / 327 139) αα ααΎLabial surface αααα Permanent maxillary central incisor ααΎαααΆα: a. 3 developmental depressions and 3 lobes b. 2 developmental depressions and 4 lobes c. 3 developmental depressions and 2 lobes d. 2 developmental depressions and 3 lobes 140 / 327 140) FDI numbering system αααα Permanent maxillary third molar right ααΊ : a. 8 b. 16 c. 18 d. 28 141 / 327 141) Mesiodistal diameter of crown at contact area αααα Permanent maxillary second premolar : a. 7.2 mm m b. 6.2 mm c. 6.5 mm d. 7 mm 142 / 327 142) Initial of calcification αααα Permanent mandibular first molar ααΊα a. 2-2.5 years b. At birth c. 2 1β4 – 2 1β2 years d. 6 – 7 Years 143 / 327 143) International FDI numbering system αααα Permanent mandibular second premolar right ααΊ :: a. 15 b. 25 c. 35 d. 45 144 / 327 144) Eruption αααα Permanent maxillary canine ααΊα a. 7-8 years b. 9-10 years c. 11-12 years d. 12-13 years 145 / 327 145) Universal numbering system αααα Permanent maxillary first premolar right ααΊ :: a. 12 b. 5 c. 24 d. 14 146 / 327 146) Labio- or Bucco-lingual diameter at cervical line αααα Permanent maxillary first premolar : a. 8 mm b. 6.5 mm c. 7.3 mm d. 8.5 mm 147 / 327 147) International FDI numbering system αααα Permanent maxillary first premolar right ααΊ : a. 5 b. 14 c. 24 d. 12 148 / 327 148) Universal numbering system αααα Permanent mandibular central incisor left ααΊ : a. 25 b. 21 c. 11 d. 24 149 / 327 149) Crown shape from occlusal aspect of permanent mandibular first molar is? a. Parallelogram b. Pentagonal c. Trapezoid d. Rhomboid 150 / 327 150) International FDI numbering system αααα Permanent maxillary first molar right ααΊ : a. 16 b. 46 c. 36 d. 3 151 / 327 151) Eruption αααα Permanent maxillary central incisor ααΊα a. 2-3 months b. 4-5 years c. 7-8 years d. 10-11 years 152 / 327 152) Root completion αααα Permanent mandibular third molar ααΊα a. 17 – 21Years b. 11-12 years c. 12-16Years d. 18- 25 years 153 / 327 153) The steepest cusp incline is present in which of the following permanent teeth ?: a. Mandibular first premolar b. Mandibular first molar c. Maxillary first molar d. Maxillary first premolar 154 / 327 154) Universal numbering system αααα Permanent mandibular second molar left ααΊ : a. 30 b. 36 c. 18 d. 19 155 / 327 155) Eruption αααα Permanent mandibular third molar ααΊα a. 17-21years b. 12 years c. 6 – 7 Years d. At birth 156 / 327 156) Labiolingual diameter at crest of curvature αααα Permanent maxillary canine: a. 7.5 mm b. 8 mm c. 8.5 mm d. 7 mm 157 / 327 157) Mesiodistal diameter at cervical line αααα Permanent maxillary canine: a. 4.5 mm b. 4 mm c. 5 mm d. 5.5 mm 158 / 327 158) Crown length αααα Permanent maxillary central incisor: a. 13.5 mm b. 11.5 mm c. 10.5 mm d. 12..5 mm 159 / 327 159) When maxillary premolars have two roots where are they placed ? a. One buccally and other lingually b. One mesially and other distally c. Both roots a placed lingually d. Both roots a placed buccally 160 / 327 160) The first evidence of calcification of permanent maxillary lateral incisor appears at the age of : a. 1 year after birth b. 2 years after birth c. 6 month after birth d. 10-12 month intrauterine life 161 / 327 161) Universal numbering system αααα Permanent mandibular lateral incisor left ααΊ : a. 32 b. 22 c. 42 d. 23 162 / 327 162) Mesiodistal diameter at cervical line αααα Permanent mandibular lateral incisor: a. 3 mm b. 4. mm c. 5.5 mm d. 4.5 mm 163 / 327 163) How many lobes are required for the development of mandibular second premolar? a. 5 lobes b. 3 lobes c. 6 lobes d. 4 lobes 164 / 327 164) The most common cusp form of mandibular second premolar is: a. U type b. H type c. U or H type d. Y type 165 / 327 165) ααΎααΎαααΆα Buccal surface αα Permanent maxillary first molar Crown ααααααΆααΆαααΆα a. Trapezoidal with small uneven side cervically b. Rectangular with small uneven side occlusally c. Parallelogram with small uneven side occlusally d. Trapezoidal with the small uneven side present cervically 166 / 327 166) Clinical crown of tooth is ? a. Portion of tooth wich is covered by enamel b. Portion crown of tooth wich is visible in mouth c. Portion of tooth wich is visible in mouth d. Portion of tooth may or may not correspond to clinical croun 167 / 327 167) Labio- or Bucco-lingual diameter at crest of curvature αααα Permanent mandibular first premolar: a. 8 mm b. 8.5 mm c. 9 mm d. 9.5 mm 168 / 327 168) Universal numbering system αααα Permanent maxillary second premolar right ααΊ :: a. 15 b. 5 c. 4 d. 25 169 / 327 169) International FDI numbering system αααα Permanent maxillary third right ααΊ: a. 38 b. 28 c. 1 d. 18 170 / 327 170) Universal numbering system αααα Permanent maxillary second premolar left ααΊ :: a. 4 b. 13 c. 25 d. 23 171 / 327 171) Length over all αααα Permanent maxillary lateral incisor : a. 23 mm b. 21.5 mm c. 22 mm d. 22.5 mm 172 / 327 172) Universal numbering system αααα Permanent mandibular third molar right ααΊ : a. 32 b. 38 c. 18 d. 17 173 / 327 173) The identifying number of permanent mandibular left second molar in the FDI numbering is: a. 18 b. 2 c. 37 d. 17 174 / 327 174) Root completion αααα Permanent mandibular second premolar ααΊα a. 10 – 12 Years b. 13-14 years c. 12- 13 years d. 12Years 175 / 327 175) Universal numbering system αααα Permanent maxillary central incisor leftααΊ : a. 8 b. 21 c. 9 d. 2 176 / 327 176) International FDI numbering system αααα Permanent mandibular second premolar left ααΊ : a. 25 b. 15 c. 35 d. 45 177 / 327 177) ααΎααΎαααΆα Mesial surface αα Crown of Permanent maxillary first molar ααααααααααΎα Cervical outline: a. Irregular and convex occlusally b. Irregular and convex occlusally c. Irregular and slightly convex toward the root d. Irregular and slightly convex occlusally 178 / 327 178) Crown completion αααα Permanent maxillary first molar ααΊα a. 5-6 Years b. 7-8 years c. 6Years d. 3-4 years 179 / 327 179) Crown length αααα Permanent maxillary canine: a. 10.5 mm b. 10 mm c. 9.5 mm d. 9 mm 180 / 327 180) αααααααα½αααα Crowns of permanent incisors ααΆααααααααα»ααααααααΈ Crowns ααααPermanent teeth αααααααα½αααΆα: a. Lingual fossa , Cingulum, Incisal edge, Mamelons b. ααΈααΆαααα·ααα»ααα Marginal ridges, Incisal edge, Mamelons, Lingual fossa c. Incisal edge, Mamelons, ααΈααΆαααα·ααα»ααα Marginal ridges, Lingual fossa αα·α Cingulum d. Mamelons, Lobes, Lingual fossa, Lingual fossa αα·α Cingulum 181 / 327 181) Labio- or Bucco-lingual diameter at cervical line αααα Permanent mandibular second premolar: a. 8 mm b. 7.3 mm c. 8.3 mm d. 7 mm 182 / 327 182) αα ααΎααααΎ Cervical cross section ααΎααααααααααΆαα«ααα½α The shape of the root and pulp cavity is oval, triangular, or ellipticalαααααΊααΆααααα:: a. Mandibular central incisor b. Maxillary central incisor c. Mandibular canine d. Maxillary canine 183 / 327 183) Mesiodistal diameter at cervical line αααα Permanent mandibular second premolar: a. 4.5 mm b. 5.3 mm c. 5 mm d. 4.3 mm 184 / 327 184) Crown shape from occlusal of mandibular molar is ? a. Rectangular/pentagonal and M-D>B-L b. Rhomboidal/parallelogram and B-L>M-D c. Rectangular/ parallelogram and M-D>B-L d. Square /parallelogram and B-L>M-D 185 / 327 185) International FDI numbering system αααα Permanent mandibular canine left ααΊ :: a. 33 b. 13 c. 43 d. 23 186 / 327 186) Universal numbering system αααα Permanent mandibular second premolar left ααΊ :: a. 25 b. 20 c. 35 d. 14 187 / 327 187) Universal numbering system αααα Permanent maxillary lateral incisor right ααΊ : a. 2 b. 7 c. 10 d. 12 188 / 327 188) International FDI numbering system αααα Permanent maxillary first premolar left ααΊ: a. 24 b. 14 c. 12 d. 34 189 / 327 189) Crown completion αααα Permanent mandibular first premolar ααΊα: a. 3-4 years b. 2-2.5 years c. 5 β 6 Years d. 6 Years 190 / 327 190) Crown length αααα Permanent mandibular canine : a. 11 mm b. 10.5 mm c. 11.5 mm d. 9.5 mm 191 / 327 191) αα αααααααΎ Cervical cross section αα ααΎ Maxillary central incisor, Pulp cavity ααΆαααΆα: a. ααΌα b. ααααΈααα c. αααααααΎ d. ααΌααααααα 192 / 327 192) First evidence of calcification αααα Permanent maxillary canine ααΊα a. 4-5 months b. 3-4 months c. 2-3 months d. 5-6 months 193 / 327 193) Cervico-occlusal Length of Crown αααα Permanent mandibular second premolar : a. 8.5 mm b. 8.3 mm c. 8.2 mm d. 8 mm 194 / 327 194) International FDI numbering system αααα Permanent mandibular lateral incisor left ααΊ : a. 42 b. 23 c. 22 d. 32 195 / 327 195) Maxillary central incisor ααΆαDistal outline of the crown a. ααΌα ααΆα Incisal outline ααα b. αααααα·α ααΆαααΆαMesial outline c. ααΌα ααΆαMesial outline ααα d. ααααααΆαααΆαMesial outline 196 / 327 196) The mandibular first premolar is : a. Smaller in general size than the second maxillary premolar b. Bigger in general size than the second maxillary premolar c. Smaller in general size than the second mandibular premolar d. Bigger in general size than the second mandibular premolar 197 / 327 197) αα ααΎ Occlusal Aspect αα Permanent maxillary first premolar ααααααααααΎαααΆα: a. Cusp, marginal ridges, triangular ridge, developmental groove, triangular fossa and central groove . b. Buccal and lingual cusp, marginal ridges, triangular ridge, developmental fossa, central groove and pit. c. Buccal and lingual cusp, marginal ridges, triangular ridge, developmental groove, triangular fossa and central groove. d. Cusp, marginal ridges, triangular ridge, developmental groove, central groove and pit. 198 / 327 198) The maxillary first premolar ααΆα pulp chamber αα½αααααα ααααα:: a. Facial ααΌααΆαααΆα Lingual b. Facial α α ααα’ααααΆα Lingual c. Facio-lingual α ααα’ααααΆα Mesio-distal d. Facio-lingual ααΌααΆαααΆα Mesio-distal 199 / 327 199) Labio- or Bucco-lingual diameter at crest of curvature αααα Permanent mandibular second premolar: a. 9.5 mm b. 9 mm c. 8 mm d. 8.5 mm 200 / 327 200) Crown completion αααα Permanent mandibular canine ααΊα: a. 6-7 years b. 9-10 years c. 8 – 9 years d. 5-6 years 201 / 327 201) In the permanent dentition, the mandibular first premolar is the fourth tooth from : a. The midline in each upper quadrant b. The mandibular central incisor in each upper quadrant. c. The midline in each lower quadrant d. The mandibular central incisor in each quadrant. 202 / 327 202) Eruption αααα Permanent mandibular first premolar ααΊα: a. 6-7 years b. 12 Years c. 10 – 12 Years d. 7 years 203 / 327 203) α«αααPermanent maxillary canine : a. ααΆααα½αα αΎαααααααα‘αΌαααΆαααΌα ααα αα·αα α»ααααα½α b. ααΆααα½αα αΎααααααΆα Permanent mandibular canine c. ααΆααα½αα αΎαααααααα‘αΌαααΆαααΌα ααα d. ααΆααα½αα αΎααααααΆααα 204 / 327 204) Universal system ααMaxillary central incisor ααΊ: a. 8,9 b. 21, 22 c. 41, 51 d. 11,21 205 / 327 205) Mesiodistal diameter of crown at contact area αααα Permanent mandibular second premolar: a. 7.2 mm b. 6.2 mm c. 6.5 mm d. 7 mm 206 / 327 206) How many lobes are required for the development of mandibular first premolar? a. 4 lobes b. 3 lobes c. 6 lobes d. 5 lobes 207 / 327 207) Eruption αααα Permanent maxillary second molar ααΊα a. 7 – 8 Years b. 12 years c. 6-7 years d. At birth 208 / 327 208) Under universal numbering system of the permanent molars they are : a. 32,31,30,29,28,27, 1,2,3,17,18,19, b. 1,2,3,14,15,16,17,18,19,30,31,32 c. 32,31,30,29,28,27, 1,2,3,14,15,16, d. 1,2,3,15,16,17,18,19,20,30,31,32 209 / 327 209) International FDI numbering system αααα Permanent maxillary first molar left ααΊ : a. 16 b. 26 c. 46 d. 36 210 / 327 210) Which teeth constitute 44% of their quadrants mesiodistal dimension?: a. Maxillary premolars b. Mandibular molars c. Mandibular premolars d. Maxillary molars 211 / 327 211) Permanent maxillary central incisor : a. ααΆαα«ααα½αααΆαααΆααΆααΈααααααααααα αα·αααΆα Apex ααΌα b. ααΆαα«ααα½αααΆαααΆααααΈαααααααααααααα αα·αααΆα Apex αααα½α c. ααΆαα«ααα½αααΆαααΆαααααααΎααααααααααα αα·αααΆα Apex αααα½α d. ααΆαα«ααα½αααΆαααΆααΆααΈααααααααααα αα·αααΆα Apex αααα½α 212 / 327 212) The identifying number of permanent maxillary left central incisor in the FDI numbering is: a. 21 b. 11 c. 8 d. 9 213 / 327
