4151. A maxillary right canine may be distinguished from a maxillary left canine because ____________?
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A. The root curves to mesial in the apical 1/3rd

B. The distal half of canine shows more convexity than the mesical half

C. Lingually the cervical line slopes mesially

D. Facially the cusp tip is placed distal to Bisecting line

4152. Ratio of mesiodistal width to height of crown of maxillary canine is______________?
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A. 8:10

B. 6:10

C. 6:08

D. 7:10

4153. Which of the following do not contribute to arch stability ?
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A. Root forms

B. Periodontal fibers

C. Cusps

D. Embrasures
4154. Motor supply of infrahyoid muscle is______________?
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A. Branches of cervical plexus

B. Vagus nerve

C. Glossopharyngeal nerve

D. Mandibular nerve

4155. Which of the following tooth shows largest Mesio- buccal ridge _____________?
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A. Maxillary 2nd premolar

B. Mandibular 1st molar

C. Maxillary 1st premolar

D. Mandibular 2nd premolar

4156. Which of the following is a smallest posterior tooth______________?
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A. Mandibular second premolar

B. Maxillary second premolar

C. Maxillary first premolar

D. Mandibular first premolar
4157. Nerve of pterygoid canal is formed by______________?
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A. Symphathetic and lesser petrosal nerve

B. Chorda tympani

C. Jacobsons nerve

D. Symphatetic and greater superficial petrosal nerve
4158. The occlusal surface shape of a 3 cusped mandibular second premolar_________________?
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A. Elliptical

B. Oval

C. Tetrahedral

D. Square
4159. Cortisol levels are maximum during____________?
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A. Sleep

B. Have no change

C. Early morning

D. Evening

4160. Distal contact of upper first premolar is________________?
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A. Lower than mesial contact area

B. Little cervical to junction of occlusal and middle third of crown

C. A and B

D. Higher than mesial contact area

4161. In which of the tooth is the mesiodistal measurements is greater lingually than facially________________?
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A. Maxillary 1st molar

B. Mandibular 1st premolar

C. Mandibular 2ndpremolar

D. Maxillary 1stpremolar

4162. The total number of cingula in each dentition is_______________?
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A. 32

B. 24

C. 6

D. 12
4163. Glucocorticoids decrease inflammatory reaction by reducing_______________?
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A. Release of histamine

B. Neutrophils

C. Fibroblastic activity

D. Activity of histamine

4164. Lacrimation is affected when facial nerve is injured at _____________?
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A. A & B

B. Sphenopalatine ganglions

C. Geniculate ganglion

D. At foramen spinosum

4165. The decreased phosphate level seen in hyper parathyroidism is due to ________________?
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A. Increased loss of phosphate in urine

B. Decreased intestinal phosphate absorption

C. Increased calcium excretion

D. Decreased renal phosphate absorption
4166. The number of line angles a permanent maxillary central incisor is_____________?
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A. Two

B. Six

C. Four

D. Eight

4167. In maxillary 1st permanent molar, the 2 obtuse angles are________________?
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A. Distofacial and mesiolingual

B. Mesiolingual and mesiofacial

C. Mesiofacial and distolingual

D. Distofacial and mesiofacial

4168. If the pulp of a single rooted tooth canal were triangular in cross section with the base of the triangle located facially and the apex lingually with a longer mesial side than distal side; the tooth most likely is_____________?
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A. Mandibular central incisor

B. Maxillary central incisor

C. Mandibular lateral incisor

D. Maxillary second premolar

4169. The primary site of action of antidiuretic hormone is on the_______________?
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A. Osmoreceptors in the hypothalamus

B. Afferent arterioles of the glomeruli

C. Thirst center in the hypothalamus

D. Distal tubules and collecting ducts in the kidney
4170. Corner stones of dental arches are:
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A. Second molars

B. First premolars

C. First molars

D. Canines

4171. Hypoglossal nerve is ______________?
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A. A peripheral nerve

B. Mixed nerve

C. Purely motor

D. Purely sensory

4172. The permanent mandibular second molar differs from the permanent mandibular first molar in number of ______________?
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A. Lingual grooves

B. Cusps

C. Roots

D. Marginal ridges

4173. The contact area on the distal surface of a maxillary first premolar should be placed in________________?
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A. Middle 3rd of proximal surface with lingual embrasure greater than the facial embrasure

B. Occlusal 3rd of proximal surface with facial embrasure greater than lingual embrasure

C. Occlusal 3rd of proximal surface with the lingual embrasure greater than facial embrasure

D. Middle 3rd with facial embrasure greater than the lingual embrasure

4174. Insulin increases the activity of___________?
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A. Thiolase

B. HMG- CoA lyase

C. HMG. CoA reductase

D. HMG- CoA synthase

4175. According to Schour & Massler the crown completion of both permanent maxillary and mandibular first molars is________________?
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A. 3-4 years

B. 3-5 years

C. 1 2 years

D. 2 3 years
4176. Endocrine disorder is the primary cause of______________?
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A. Pagets disease

B. Acromegaly

C. Albrights syndrome

D. Fibrous dysplasia

4177. In the triangle formed by the projection of the orifices of the canals of a maxillary molar, the_________________?
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A. Line connecting mesial with lingual is longest

B. Angle at the mesio facial canal is obtuse

C. Line connecting distal with lingual is longest

D. Line connecting mesial with distal is longest

4178. following are the features of cretinism, except_____________?
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A. Idiotic look

B. Pot- belly

C. Stunted growth

D. Normal intelligence
4179. Aldosterone production is controlled by _____________?
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A. Posterior pituitary gland

B. Hypothalamus

C. Adrenal gland

D. Anterior pituitary gland
4180. Which of the following is true of permanent first molars occlusal surface_____________?
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A. Rhomboidal shape in maxillary molars and hexagonal shape in Mandibular molars

B. Mandibular molar has 1 major fossa, 2 minor fossa, 5 triangular ridges and 4 grooves

C. Maxillary molar has 2 major fossa, 2 minor fossa, 4 triangular ridges,1 oblique ridge and 5 grooves

D. All of the above
4181. Which anterior teeth have both mesial and distal contact areas of at the incisal third____________?
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A. Mandibular centrals

B. Mandibular laterals

C. Both A and B

D. None of the above

4182. Dentin islands are frequently found in the root canals of which of the following permanent teeth ?
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A. Maxillary lateral incisor & mandibular canine

B. Maxillary 2nd premolar & mandibular canine

C. Maxillary 2nd premolar & maxillary 1st molar

D. Maxillary 1st molar & mandibular 2nd premolar

4183. Fertilized ovum usually gets attached to the uterus wall in ____________?
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A. 28 days

B. 8 weeks

C. 1 week

D. 14 days

4184. Largest tooth in the mandibular arch is_________________?
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A. Canine

B. Decidous first molar

C. Third molar

D. Permanent first molar
4185. Number of roots in maxillary 2nd molar is_______________?
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A. 3

B. 2

C. 5

D. 4

4186. The primary centre of formation of each lobe is present in_____________?
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A. Apex of the root

B. Centre of the crown

C. Centre of the tooth

D. Tip of the cusp
4187. Excess of cortisol causes______________?
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A. Diabetes insipidus

B. Conns syndrome

C. Cushing s syndrome

D. Acromegaly

4188. Oblique ridge in maxillary first molar joins which of the following cusps____________________?
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A. ML and DB

B. ML and MB

C. DL and DB

D. DL and MB

4189. Permanent mandibular first molar is developed from ______ lobes?
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A. 3

B. 4

C. 5

D. 6

4190. A diet deficient in calcium will result in_____________?
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A. Production of Calcitonin and a low blood calcium level

B. Stimulation of the thyroid gland

C. Production of parathyroid hormone and bone resorption

D. Increased ability to cross link fibrin

4191. The tooth that is commonly seen in an abnormal relation and contact with its adjacent teeth of the same arch is ________________?
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A. Mandibular lateral incisor

B. Mandibular first premolar

C. Maxillary central incisor

D. Maxillary lateral incisor
4192. Hyperthyroidism can be caused by____________?
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A. Hydralazine

B. Amiodarone

C. Penicillamine

D. Clonidine

4193. Which one of the following is a branch of facial nerve__________?
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A. External petrosal nerve

B. Deep petrosal nerve

C. Greater superficial petrosal nerve

D. Lesser superficial petrosal nerve

4194. True about occulomotor nerve are all except____________?
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A. Carries parasympathertic fibres

B. Supplies inferior oblique muscle

C. Causes constriction of pupils

D. Passes through inferior orbital fissure
4195. Which of the following hormones does not affect growth ?
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A. Somatotropins

B. Oxytocin

C. Thyroid hormone

D. Estrogen

4196. The contact area on the distal side of a maxillary first premolar is located _____________?
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A. Middle of the middle third with lingual embrasure wider than buccal

B. Cervical third with buccal embrasure wider than lingual embrasure

C. Middle of the middle third with buccal embrasure wider than lingual

D. Litter cervical to the junction of occlusal and middle third of the crown with wide occlusal embrasure
4197. Which of these following is not an effect of insulin ?
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A. Increased transport of glucose into cells

B. Decreased gluconeogenesis

C. Induction of lipoprotein lipase

D. Increased glycogenolysis
4198. The hormone having the maximum effect on granulation wound healing is____________?
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A. Parathormone

B. Cortisone

C. Epinephrine

D. Thyroxine

4199. Tooth with smallest root is_______________?
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A. Maxillary lateral incisor

B. Mandibular lateral incisor

C. Maxillary central incisor

D. Mandibular central incisor
4200. The hormone , which stimulates uterus contraction and lets down milk, is_____________?
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A. Prolactin

B. Prostaglandin

C. Oxytocin

D. Progesterone