McQ on dentistry

1) In all ceramic anterior restoration , it is better to place centric contacts at:
A. Incisal third
B. Middle third
C. Cervical third
D. Proximal half

2)Optimum dimension for the cement space for each wall of the Crown is:
A. 40-80 microns
B. 20-40 microns
C. 10-20 microns
D. 1-3 microns

3) The opaque layer of ceramic :
A. Masks the dark metal oxide
B. Gives translucense to restorations
C. Functions as primary source of color
D. Acts as 'A' and 'C'

4) Essig Splint:
A. It used to stabilized fractured or repositioned teeth and alveolar bone
B. Is used to correct TM] problems
C. Is used to correct occlusal discrepancies
D. Is a mandibular orthopaedic repositioning device

5) The smaller the Bennett Movement:
A. Shorter the cusps
B. Longer the cusps
C. Greater the maxillary anterior lingual concavity
D. Both 'B' and 'C' are correct

1)Registration point is:
a. Point A
b. A point half way on the perpendicular from Sella to Bolton’s plane
c. Nasion
d. Point B

2)The principal fibers commonly associated with relapse after rotation of teeth are:
a. Horizontal fibers
b. Oblique fibers
c. Supracrestal fibers
d. Diagonal fibers

3)A 7-year-old child has normal occlusion except for a marked lingual eruption of a maxillary central incisor. Which of the following is the best corrective therapy?
a. Crossbite elastics
b. Home therapy with a tongue blade
c. Maxillary acrylic incline plane
d. A maxillary appliance to apply labial force

4)In Tanaka Johnson analysis formula used for calculating maxillary space required is:
a. Half of the combined width of mandibular incisors + 11
b. Half of the combined width of the mandibular incisors + 10.5
c. Half of the combined width of maxillary incisors + 11
d. Half of the combined width of maxillary incisors + 11

5)Air abrasion technique uses high velocity:
a. Calcium silicate particles
b. Aluminium oxide particles
c. Magnesium oxide particles
d. Aluminium silicate particles

1) In children, the highest incidence of midface fractures occurs in:
a. 2–4 years c. 10–12 years
b. 6–8 years d. 11–15 years

2) Which of the following is not included in Hallet’s factors for mechanism of dental injuries?
a. Energy
b. Direction
c. Distance
d. Resilience

3)Parrot like repetitive speech is found in:
a. Autism
b.Marfan’s syndrome
c.Cerebral palsy
d. Mental retardation

4) Alveolar grafting in a patient of cleft should ideally be placed:
a. Before maxillary expansion, cross bite correction and before cuspid eruption
b. Before maxillary expansion, cross bite correction and after cuspid eruption.
c. After maxillary expansion, cross bite correction and after cuspid eruption.
d. After maxillary expansion, cross bite correction and before cuspid eruption.

5) An infection with high fever soon after birth may result in hypoplasia of:
a. Permanent incisors and permanent first molars b. All permanent teeth
c. All permanent teeth except 3rd molars
d. All primary teeth but the permanent teeth are spared

1) The rubber dam is particularly adaptable to the primary second molar because the:
a. Occlusocervical height favors its retention
b. Cervical constriction of the crown favors its retention
c. Mesiobuccal bulge favours its retention
d. Smaller diameter of the crown (as compared with permanent teeth) favors its retention

2)Wymans index is a measure of:
a. Dental caries
b.Tooth mobility
c. Gingivitis
d. Fluorosis

3) Most striking feature of Localized early onset periodontitis:
a. Shallow pockets
b. No pockets
c. Both
d. Deep pockets

4) Maximum allowable dose of 2% lidocaine with 1:100000 epinephrine for a child of 40 lbs is:
a. 60mg
b. 120mg
c. 180mg
d. 240mg

5) For radiographic diagnosis of root fracture the central beam is directed at:
a. 0 to 10°
b. 10 to 15°
c. 15 to 20°
d. 20 to 30°

10) Dentitio precox is

a) Predeciduous dentition

b) Teething problem

c) Early eruption of deciduous dentition

d) Re****ed eruption of deciduous dentition

9)A child with a fever of 102°F and vesicles in oral cavity and is probably suffering from :-

a) Herpes simplex Type-1

b) Juvenile periodontitis

c)Acute herpetic gingivostomatitis

d) Neutropenia

8) "Strawberry tounge" is associated with :-

a) Diphtheria

b) Syphilis

c)Scarlet fever

d) Tuberculosis

7) The best radiographic view of Tempero-mandibular joint (TMJ) is given by :-

a) Transorbital view

b)Reverse towne's view

c)Trans-pharyngeal view

d) Panorex

6) Denholtz appliances are used for :-
a) correction of open bite

b) Distalisation of molar

c) correction of deep bite

d) correction of anterior cross bite

5) Fleeting painful sores are caused by :-
a) Overextended dentures boarders

b) Occluding face height being too great

c) Malocclusion

d) None of above

4) "GRINSPAN" Syndrome is associated with :-

a) Oral lichen planus, Diabetes mellitus, Rheumatoid arthritis

b) Oral lichen planus, Hypertension, Asthma

c) Hypertension, Diabetes mellitus, Asthma

d) Oral lichen planus, Diabetes mellitus, Hypertension

3)In a 10yrs old child, the lower canine are trying to erupt in 2mm insufficient space.The primary molars are large and firmly fixed.The 1st premolar are also erupting

Treatment of choice is:-

a)Remove primary 2nd molar

b) Place a removal bite opener

c)Mesial stripping of primary 2nd molar

d) Remove 1st premolar