Export exercise (1)

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Export exercise (1)

  1. 1. Unique Questions 1- The lower first premolar has: a- Two well-developed functioning cusps, one buccal & one lingual. b- A large pointed buccal cusp & a short nonfunctional lingual cusp. c- Three well developed cusps one buccal & 2 lingual. d- Four cusps two buccal & two lingual cusps 2-The mesial and distal fossae found on the occlusal surface of upper 4 are: a- Triangular b- Circular c- The mesial is triangular and the distal is circular d- The mesial is elongated and the distal is circular 3-The central developmental groove on the occlusal surface of the lower 5 may be: a- U shape. b- Y shape. c- H shape. d- All of above 5- The lingual surface of the 3 cusp type lower 5 have: a- A mesiolingual developmental groove. b- A lingual developmental groove c- A distolingual developmental depression d- A mesiolingual developmental depression 6-The upper 5 differs from the upper 4 in which of the following character: a- A shorter mesiobuccal cusp slope compared to the distal slope. b- The absence of mesial marginal developmental groove. c- Buccal & lingual cusps are equal in lengths d-All of the above. 7- The mesial surface of the upper first premolar: a- Is trapezoid in shape with the short of the uneven sides occ1sually and the long cervically. c- Has a developmental depression cervical to the mesial contact area. d- All the above. 8-When viewed from the occlusal aspect, which of the following help to identify upper 4 :
  2. 2. a- Presence of a distolingual cusp b- A small indistinct lingual cusp. c- Presence of mesial marginal groove d-highly sloped distal marginal ridge. 9--Of the four premolars, which one is likely to have two root canals : a- Mandibular first premolar b- Mandibular second premolar c- Maxillary first premolar d- Maxillary second premolar 10-The term premolar is more appropriate than the term bicuspid because: a- Most premolars demonstrate one cusp only. b- Human premolars show a variation from 2 to 3 cusps. c- Human premolars show a variation from 2 to 5 cusps. d- The typical premolars will have 5 cusps. 11- On the lower first premolar which marginal ridge is higher a- The mesial marginal ridge is higher b- The distal marginal ridge is higher c-The mesial and distal marginal ridges are at the same height d- All of the above 12-Of the four premolars, which one is likely to have just one large pulp horn a- Mandibular first premolar b- Mandibular second premolar c- Maxillary first premolar d- Maxillary second premolar 13-What tooth is occasionally called a 'tricuspid' a-upper first premolar b-lower first molar c-lower first premolar d-lower second premolar 14- The occlusal surface of the upper second premolar has the following except: a- Is oval in shape. b- Has short central development groove.
  3. 3. c- Has a lot of supplemental grooves giving it wrinkled appearance. 15- The pulp chamber of the lower first premolar has two pulp horns one buccal and one lingual they are: a- Equal. b- The lingual pulp horn is more prominent. c- The buccal pulp horn is more prominent. d- Has no pulp horns. 16- The pulp chamber of a 3 cusp type lower second premolar has: a- One buccal and two lingual pulp horns. b- One lingual and two buccal pulp horns. c- One buccal and one lingual pulp horn. d-None of the above. When viewed from the occlusal aspect, which of the following are differences in the crown of upper 5 as compared to upper 4 A more rounded outlines. A shorter central groove c- More supplemental grooves d- All of above

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