A. Actinomyces
B. Strep. mutans
C. Lactobacillus
D. Strep. viridans
Related Mcqs:
- S. mutans is involved in dental caries initiation Other bacteria also involved is______________?
A. S. Sarcinus
B. S. macae
C. S. sanguis
D. S. salivarius - What is the PH at which initiation of caries begin ?
A. 4.3-4.5
B. 5.2-5.5
C. 4.9-5.1
D. 3.5-4.5 - Initiation of caries by streptococcus mutans is by the production of______________?
A. Dextranase and soluble dextran
B. Insoluble dextan and glucosyl transferase
C. soluble dextan and glucosyl transferase
D. None of the above - Smooth surface caries is characterized by spread of caries in enamel and dentin as cones. These alignment in enamel and dentin is____________?
A. Base to base
B. Apex to base
C. Apex to apex
D. None of the above - Progression of dental caries caries on pit and fissure occurs from:
A. Apex of the pit and fissure
B. Wide and of the pit and fissure
C. Lateral surface of the pit and fissure
D. Bottom of the pit and fissure - Pioneer bacteria in dental caries are in_____________?
A. Enamel
B. Dentin
C. Pulp
D. Cementum - First evidence of initiation of primary dentition is usually around_____________?
A. 4 months in utere
B. Birth
C. 4 months after birth
D. One year after birth - The initiation codon for protein synthesis is_____________?
A. AUG
B. UAA
C. UUU
D. UAG - Which of the following anomalies occur during the initiation and proliferation of tooth development ?
A. Amelogenisis imperfecta
B. Dentinogenesis imperfecta
C. Enamel hypoplasia
D. Oligodontia - The prbable reasons for a high incidence of dental caries in the teenage population relates most directly to______________?
A. Rapid growth
B. Frequency of sucrose intake
C. Negligence in visiting the dentist
D. Carelessness in oral hygiene habits
