🏥Medical MCQs
Medical MCQs
499 MCQs41
Pioneer bacteria in dental caries are in_____________?
AEnamel
BDentin
CPulp
DCementum
42
Chemico-parasitic theory of dental caries is proposed by______________?
AMiller
BG.V black
CGottlieb
DSchwartz
43
In a caries-free individual the saliva has_____________?
Alow buffering capacity of acids
BMedium buffering capacity for acids
CHigh buffering capacity for acids
DIndependent of buffering capacity for acids
44
The lateral spread of dental caries is facilitated mostly by the_______________?
AEnamel spindles
BDentinoenamel junction
CEnamel lamellae
DStriae of Retzius
45
Caries, all are true except______________?
ALactobacillus is main acusative organism in plaque
BSmooth surface caries occur due to streptococcus mutans
CPit and Fissure caries can be prevented by using pit and tissue sealants
DFluorides help in reducing caries incidence
46
Intitation of dental caries depends upon_______________?
AFormation of large amount of acid
BAvailability of carbohydrate food
CViscosity of saliva
DLocalization of acid over tooth surface
47
Clinical evidence of dentinogenesis imperfecta is______________?
ADefective enamel and dentine
BDefective dentine and obliterated pulp chamber
CIncreased rate of caries
DOligodontia
48
Lingual tonsils arise___________________?
AAs developmental anomalies
BFrom carcinomatous transformation
CAs a result of hyperpalsia
DDue to repeated trauma in the area
49
Ectopic sebaceous glands in the mouth are called________________?
ALinea alba buccalis
BHeck’s disease
CLingual verices
DFordyce spots
50
Most common missing tooth in the permanent dentition is_____________?
AMaxillary canine
BMaxillary first molar
CMandibular second premolar
DMandibular first molar