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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.

In the earliest stages of carious lesion. There is loss of______________?

A Enamel cuticle

B Interprismatic substance

C Organic matrix

D Enamel lamellae

Review Detailed Answer

Correct Answer: Interprismatic substance

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

Review Detailed Answer

Correct Answer: 5.2-5.5

The dietary carbohydrate most likely involved in etiology of dental caries in man is____________?

A Glucose

B Sucrose

C Dextran

D Polysaccharide

Review Detailed Answer

Correct Answer: Sucrose

The corrct order of microscopic zones of dentinal caries starting from the D.E junction is_______________?

A Zone of sclerosis, decalcification zone, bacterial invasion

B Bacterial invasion, decalcification zone, zone of sclerosis

C Zone of sclerosis, backterial invasion, decalcification zone

D Decalcification zone, zone of scierosis, backterial invasion

Review Detailed Answer

Correct Answer: Bacterial invasion, decalcification zone, zone of sclerosis

Dental caries is associated with_____________?

A Streptococcus agalactiae

B Streptococcus mutans

C Streptococcus bovis

D Streptococcus anginosus

Review Detailed Answer

Correct Answer: Streptococcus mutans

Which of the following is cariogenic ?

A Selenium

B Vanadium

C Strontium

D Molybdenum

Review Detailed Answer

Correct Answer: Selenium

Starch is considered to be less cariogenic than monosaccharides and disaccharides because it_______________?

A Does not diffuse through plaque

B Is rapidly hydrolysed in the mouth

C Enhances remineralisation

D Raises the PH in the oral cavity

Review Detailed Answer

Correct Answer: Does not diffuse through plaque

The attachment of the Actinomyces species to the tooth surface is facilitated by____________?

A Fimbriae

B Cilia

C Flagella

D Pseudopodia

Review Detailed Answer

Correct Answer: Fimbriae

Which of the following factors in the stephan’s curve is related to the caries incidence and sugar intake______________?

A Physical form of sugar

B Frequency of sugar intake

C Ph of Plaque

D Quantity of sugar intake

Review Detailed Answer

Correct Answer: Ph of Plaque

Cavity formation in a tooth, due to dental caries is due to______________?

A Destructive potential of streptococcus mutans

B Destructive potential of lactobacillus acidophilus

C Lateral spread of caries along DE junction and weakening of the outer covering enamel

D Mastectomy force and unrelated to the extent of carious process

Review Detailed Answer

Correct Answer: Lateral spread of caries along DE junction and weakening of the outer covering enamel

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Medical Science Mcqs 5254 MCQs [All-Courses]

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All Topics 5254

In the earliest stages of carious lesion. There is loss of______________?

What is the PH at which initiation of caries begin ?

The dietary carbohydrate most likely involved in etiology of dental caries in man is____________?

The corrct order of microscopic zones of dentinal caries starting from the D.E junction is_______________?

Dental caries is associated with_____________?

Which of the following is cariogenic ?

Starch is considered to be less cariogenic than monosaccharides and disaccharides because it_______________?

The attachment of the Actinomyces species to the tooth surface is facilitated by____________?

Which of the following factors in the stephan’s curve is related to the caries incidence and sugar intake______________?

Cavity formation in a tooth, due to dental caries is due to______________?