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NEET MDS Quiz - Practice Test
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Practice Test

Community Dentistry - 3 Questions

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

📝 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
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

📝 Explanation:

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

3
Community Dentistry
The dental auxillary who fabricates dentures directly
1) Dental lab technician
2) Expanded function dental auxilliary
3) Denturist
4) Dental assistant

📝 Explanation:

A denturist is a dental auxiliary trained to fabricate and fit dentures directly for patients, without the supervision of a dentist in some jurisdictions.

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