Dentosphere : World of Dentistry

 # What is the final stage of tooth development? a. Crown formation. b. Root formation and eruption. c. Function. d. Dentinogenesis and amelogenesis. The correct answer is C. Function. Crown formation is followed by root formation and eruption. Root formation and eruption are followed by function. Function is the final stage of tooth development. Dentinogenesis and amelogenesis are followed by crown formation. CLICK HERE FOR MORE MCQs

 # Which is most difficult to diagnose? A. Necrosed pulp B. Internal resorption C. Chronic pulpitis D. Acute apical abscess The correct answer is C. Chronic pulpitis. Both necrotic pulp and chronic pulpitis are difficult to diagnose and can show varied symptoms.  Chronic pulpitis can be differentiated by its history of clinical symptoms.  Chronic pulpitis under a crown restoration is most difficult to diagnose.  This question is a direct pick from NBDE and the answer is Chronic Pulpitis.  CLICK HERE FOR MORE MCQs

# Chronic Lymphocytic thyroiditis refers to: a) Tuberculous thyroiditis  b) Hashimoto's thyroiditis c) Dequervain's thyroiditis  d) Riedel's thyroiditis The correct answer is B. Hashimoto's Thyroiditis. Hashmimoto's thyroiditis: • Most common type of thyroiditis • Autoimmune; raised titres of thyroid antibodies. • Mild hyperthyroidism may be present initially but hypothyroidism is inevitable. • Characteristic 'bosselated' feel with soft, rubbery or firm in consistency; Hurthle cells present. CLICK HERE FOR MORE MCQs

# The current “gold standard” for predicting the malignant potential of the precancerous lesions is the: A. presence & degree of dysplasia B. presence of candidal hyphae C. presence of red areas in the lesion D. site of the lesions # Which of the following viruses is not an oncovirus? A. Herpes Simplex Virus B. Human Papilloma Virus C. Varicella zoster Virus D. Epstein Barr Virus # Which type of inflammatory cells predominate in the infiltrate of invasive carcinoma? A. Monocyte B. T lymphocyte C. CD 8 lymphocyte D. Langerhan's cell # The fixation of lymph nodes to adjacent tissues in cases of malignancy is due to: A. Secondary infection B. protective mechanism of body C. invasion of malignant cells through capsule D. matting of lymph nodes # Which of the following is not a Tumor suppressor gene? A. p53 B. p161NK4A C. bcl – 2 D. FHIT (fragile histidine tri...

# Obturation of a root canal should achieve: A. Tug back B. Hermetic seal C. Fluid free seal D. All of the above # The purpose of a root canal sealer is to: A. seal the tubules of the dentine B. stimulate healing in periapical region C. prevent discoloration D. fill the space between solid core material and pulp canal walls

# All of the following are contraindications for root planing except: A. deficient or overhanging margins of amalgam restorations B. erosion and/or abrasion C. recession D. root caries # While sharpening curettes and sickles, the internal angle of ________ must be preserved between the face and lateral surface. A. 50-60 B. 60-70 C. 70-80 D. 80-90

# Which of the following are most sensitive to X ray? A. Tooth buds and salivary glands B. Nerve and muscle tissue C. Hair and nails D. Cartilage # The most radiosensitive cells in the body are: A. Endothelial cells B. Epithelial cells C. Red blood cells D. White blood cells

# A thin bluish line around the gingival margin is due to the absorption of: A. Silver B. Mercury C. Drugs like Tetracycline D. Lead # McCall's festoons are: A. also called Stillman's clefts B. due to poor oral hygiene C. Congenital abnormality D. Due to trauma from occlusion

# Growth site of the mandible is in the : A. Body B. Condylar cartilage C. Coronoid process D. Ramus # Maxilla develops by : A. Endochondral bone formation B. Intramembranous bone formation C. cartilage replacement and intramembranous bone formation D. mostly cartilage replacement and a little by intramembranous

# Malocclusion can be progressive in: A. Class I B. Class II C. Class III D. Combination of both class I and Class III # Retained mandibular deciduous central incisors will result in: A. Lingual eruption of mandibular permanent incisors B. Labial eruption of mandibular permanent incisors C. Impaction of mandibular permanent incisors D. Ankylosis of mandibular permanent incisors

# In children, median diastema between maxillary permanent incisors closes with the eruption of: A. Maxillary permanent first premolars B. Maxillary permanent lateral incisors C. Maxillary permanent canines D. Maxillary permanent second molars # The average "Leeway space" available in each half of the maxilla is approximately: A. 0.9 mm B. 2.9 mm C. 4.0 mm D. 6.9 mm

# Most realistic approach in managing a difficult child in dental clinic is: A. Disregard the behavior of child B. Make child familiar with clinical atmosphere C. Physical methods to make child accept the treatment D. None of the above # Hand over mouth exercise (HOME) is effective behavioral modification technique in the age group of: A. 3 to 6 years B. Under 3 years C. 6 to 9 years D. Above 9 years

# Class IV Kennedy classification is: A. Bilateral edentulous area located posterior to the remaining natural teeth B. Unilateral edentulous area located posterior to the remaining natural teeth C. Unilateral edentulous area with natural teeth remaining both anterior and posterior to it D. A single but bilateral (crossing the midline) edentulous area located anterior to the remaining natural teeth # A distal extension partial denture receives its support : A. From terminal abutments B. Equally from abutments and the residual ridges C. Mostly from residual ridge D. Exclusively from residual ridge

BDS Annual Examination 2017 VIVA Questions CNS, MSK & Special Senses SET B     Anatomy: a.      Name the type of fibres present in corpus callosum.          (2) b.     What is Bell’s Palsy? Mention its clinical features.               (2) c.      What is pterion? Mention its clinical significance.                (2) d.     What are the structures found in internal acoustic meatus?            (2) e.     What are intrinsic muscles of eye?                               ...

# Cowper's gland is a: A. Male Sex Gland B. Female Sex Gland C. A kind of endocrine gland D. A kind of digestive gland # Cowper's gland is present in: A. Frog B. Earthworm C. Cockroach D. Rabbit

# Acoustic spot in each ampulla of human ear is known as: A. Otolith B. Organ of Corti C. Crista D. Macula # In internal ear, sensory pathces are situated in: A. membranous labyrinth B. cochlea C. stapedial plate D. Fenestra ovalis

# Longest Cranial Nerve is: A. Occulomotor B. Vagus C. Abducent D. Occipital # Number of cranial nerve in rabbit is ____ pairs. A. 9 B. 10 C. 11 D. 12 # The lobe of brain where visual stimuli are received and analysed is: A. Frontal B. Temporal C. Parietal D. Occipital

CLICK HERE TO VIEW ALL THE ANSWERS FOR RAPID REVISION. # Micelles are the bodies related to: A. Secretion of hormones B. Secretion of enzymes C. Absorption of minerals D. Absorption of fat # Movements of circular muscles in the stomach is called A. Digestion B. Absorption C. Excretion D. Peristalsis

Well, the greatest dilemma freshly graduated Dental Surgeons face in their life that whether they should do MDS after BDS or not. They are disinclined to join MDS after completing BDS because all their vigor and enthusiasm is already exhausted by the rigorous five and a half year course of BDS. On the top of that, the seats in MDS are too few that it necessitates an excruciatingly painful toil to get through the competitive entrance exams and secure a seat.

# A union of the roots of adjacent teeth through the cementum is referred to as : A. Concrescence B. Fusion C. Gemination D. None of the above # The term dilaceration refers to : A. A deformity of a tooth consisting of a sharp bend in the root B. Abrasions on two surfaces of a single tooth C. A root or tooth that is split into two D. A tooth that is fractured at two or more places