NEET MDS Quiz - Practice Test

1

Community Dentistry

The most important microorganism in initiation of dental caries is:

1) Lactobacillus acidophilus

2) Streptococcus mutans

3) Actinomyces viscosus

4) Veillonella species

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

S. mutans is the primary initiator of caries.

It adheres to enamel, forms biofilm (plaque), and produces lactic acid.

Lactobacilli are more important in progression of caries, not initiation.

2

Community Dentistry

PMA is a symbol for a
1) Pulp capping material
2) Caries index
3) Periodontal index
4) Materia alba index

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

PMA stands for "Periodontal Disease Index," which is used to assess the periodontal health of individuals. It evaluates the presence and severity of periodontal disease by measuring clinical parameters such as probing depth and attachment loss. The other options do not correspond to the PMA acronym.

3

Community Dentistry

Which of the following are not included in the WHO classification of operating dental auxiliaries
1) Dental hygienist
2) School dental nurses
3) Therapists
4) Denturists

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

WHO classifies operating dental auxiliaries as dental hygienists, school dental nurses, and therapists. Denturists are not included in this classification.

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