481. mutans is involved in dental caries initiation Other bacteria also involved is______________?

A. S. Sarcinus
B. S. macae
C. S. sanguis
D. S. salivarius

482. Widely accepted theory of dental caries_____________?

A. Proteolytic theory
B. Proteolytic chelation theory
C. Acidogenic theory
D. Autoimmune theory

483. The number of dentinal zones in dentinal caries is_____________?

A. One
B. Two
C. Four
D. Five

484. In a patient with reduced salivary flow the carious incidence is_______________?

A. More than the patient with normal salivary flow
B. less than the patient with normal salivary flow
C. unaffected
D. None of the above

485. The extra – cellular polysaccharide sythesized by cariogenic streptococci in the presence of excess sucrose are best described as_______________?

A. Mucopolysaccharide
B. Dextran-like glucan
C. Glycogen – like glucan
D. Amylopectin

486. Lactobacilli are numerous in caious lesions because they______________?

A. Are the main causative agent
B. Can produce insoluble extracellular polysaccharides
C. Can attack to smooth enamel surfaces
D. Are secondary invaders

487. Tumor represented T2 N2 M0 is classified as_______________?

A. Stage I
B. Stage II
C. Stage III
D. Stage IV

488. Sturge Weber syndrome is characterized by all EXCEPT_________________?

A. Exophytic oral Hemangioma
B. Facial hematoma
C. Tramline calcification of dura on lateral cephalogram
D. Facial hemangioma

489. Keratocanthoma is found most commonly on ?

A. Lip
B. Gingiva
C. Tongue
D. Hard palate

490. Clear cells are seen in__________________?

A. Chondrosarcoma
B. Osteosarcoma
C. Fibrosarcoma
D. Ewing’s sarcoma

NOTE
IF YOU THINK ANY OF THE MCQ ABOVE IS WRONG.
PLEASE COMMENT WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION IN COMMENT BOX.
THANK YOU