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Medical Science Mcqs 5254 MCQs [All-Courses]

Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

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

Review Detailed Answer

Correct Answer: Frequency of sucrose intake

The enzyme glucosyl transferase secreted by Streptococcus mutans sythesizes glucans from_____________?

A Glucose

B Fructose

C Sucrose

D Lactose

Review Detailed Answer

Correct Answer: Sucrose

For a bacterium to be seriously considered in the etiology of dental caries, it must______________?

A Exist regularly in the dental plaque

B Produce extracellular amylopectins

C Be lethal for gnotobiotic animals

D Produce intracellular dextrans

Review Detailed Answer

Correct Answer: Exist regularly in the dental plaque

Streptococcus mutans is considered to be principle etiologic agent of caries because it produces organic acids and it ________________?

A Forms a gelatinous matrix

B Metabolizes substrate from saliva

C Derives energy from enamel constituents

D Lives symbiolically with lactobacillus

Review Detailed Answer

Correct Answer: Forms a gelatinous matrix

Which tooth in the permanent dentition is the most susceptible to dental caries ?

A Maxillary 1st premolar

B Maxillary 2nd molar

C Mandibular 1st molar

D Mandibular 2nd molar

Review Detailed Answer

Correct Answer: Mandibular 1st molar

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

Review Detailed Answer

Correct Answer: Apex to base

Oral foci of miller’s are seen in_______________?

A Dental caries

B Lichen planus

C Herpes simplex

D Syphilis

Review Detailed Answer

Correct Answer: Dental caries

Bacteria responsible for initiation of caries is _________________?

A Actinomyces

B Strep. mutans

C Lactobacillus

D Strep. viridans

Review Detailed Answer

Correct Answer: Strep. mutans

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

Review Detailed Answer

Correct Answer: S. sanguis

Widely accepted theory of dental caries_____________?

A Proteolytic theory

B Proteolytic chelation theory

C Acidogenic theory

D Autoimmune theory

Review Detailed Answer

Correct Answer: Acidogenic theory

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Medical Science Mcqs 5254 MCQs [All-Courses]

All Topics 5254

All Topics 5254

The prbable reasons for a high incidence of dental caries in the teenage population relates most directly to______________?

The enzyme glucosyl transferase secreted by Streptococcus mutans sythesizes glucans from_____________?

For a bacterium to be seriously considered in the etiology of dental caries, it must______________?

Streptococcus mutans is considered to be principle etiologic agent of caries because it produces organic acids and it ________________?

Which tooth in the permanent dentition is the most susceptible to dental caries ?

Smooth surface caries is characterized by spread of caries in enamel and dentin as cones. These alignment in enamel and dentin is____________?

Oral foci of miller’s are seen in_______________?

Bacteria responsible for initiation of caries is _________________?

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

Widely accepted theory of dental caries_____________?