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NEETMDS- Periodontics mcq
MDS PREP
Pigmentation of chemicals in mucosa is due to 
 1. Increased permeability of blood vessels
 2. Local deposition of chemicals in muscosa
 3. Subepithelial precipitation in connective tissue at the site due to increased capillary permeability
 4. None of the above
Periodontics Answer: 4

Pigmentation of chemicals in the mucosa is due to local deposition of chemicals in the mucosa.

Efficient way of calculus removal is
1) A relaxed instrument grasp and light lateral working strokes
2) A tight instrument grasp and light lateral working strokes
3) A tight instrument grasp and firm lateral working strokes
4) None of the above
Periodontics Answer: 3

Explanation:
For effective calculus removal, a tight instrument grasp combined with firm lateral working strokes is essential. This technique allows for better control and application of force, which is necessary to effectively dislodge calculus from the tooth surface.

An enamel pearl located on disal furcation of maxillary molar with furcation involvement can be best treated by 
 1. Flap surgery and odontoplasty
 2. Extraction of tooth
 3. Flap surgery and hemisection
 4. Flap surgery and root amputation
Periodontics Answer: 1

An enamel pearl located on the distal furcation of a maxillary molar with furcation involvement can be best treated by flap surgery and odontoplasty.

Crater-like gingival deformities are seen in 
 1. ANUG
 2. JP
 3. Chronic gingivitis
 4. Adult periodontitis
Periodontics Answer: 1

Crater-like gingival deformities are seen in ANUG.


Which of the following periodontal diseases does not have calculus:

1. ANUG.
2. Chronic adult periodontitis.
3. Juvenile periodontitis.
4. Periodontal abscess.
Periodontics Answer: 3

Juvenile periodontitis, now referred to as localized aggressive periodontitis, is characterized by the loss of periodontal attachment and bone in adolescents and young adults, often without the presence of significant calculus. This distinguishes it from other forms of periodontitis, where calculus is typically present.



The periodontal fiber group which inserts into two adjacent teeth is the

1. transseptal group

2. circular group

3. horizontal group

4. oblique group


Periodontics Answer: 1

The transseptal fibers are a type of periodontal ligament fiber that run between the cementum of adjacent teeth. They help maintain the interproximal relationship between teeth and provide support to the gingival tissue. These fibers are important for the stability of the dental arch and help resist the forces that may cause teeth to drift apart.

Circular group fibers encircle the tooth.
Horizontal group fibers run horizontally between the
tooth and the alveolar bone.
Oblique group fibers run from the cementum to the bone
at an angle, providing resistance to vertical forces.


Slight gingival recession on normally placed canine is noted due to inflammation. After through scaling and root planing it is free of inflammation. Treatment of choice
1) Laterally positioned graft
2) Free gingival graft
3) Coronally displaced graft
4) Maintenance and recall visits
Periodontics Answer: 4

1) Laterally positioned graft: This technique is used when there is a loss of
interdental papilla, which may occur due to periodontal disease or trauma.
2) Free gingival graft: This involves the transfer of a piece of tissue from the
palate to the affected area to cover the exposed root surface and increase the
zone of attached gingival tissue.
3) Coronally displaced graft: This technique involves moving the existing
gingival tissue coronally over the exposed root to cover it.
4) Maintenance and recall visits: After the resolution of inflammation through
scaling and root planing, if the recession is minimal and the tooth is not at
risk of further damage, regular maintenance and recall visits may be sufficient
to monitor the area.

Since the question mentions that the tooth is normally placed and the issue is
resolved after scaling and root planing, the correct answer is 4) Maintenance
and recall visits to ensure the area remains healthy and monitor for any
recurrence of recession.


Gingival inflammation extending the deeper supporting tissues and destroying part of the periodontium would be diagnosed as

1 acute necrotizing ulcerative gingivitis

2 chronic gingivitis

3. gingival pathosis

4. juvenile periodontitis


Periodontics Answer: 4

Juvenile periodontitis involves inflammation that extends beyond the gingiva
into the supporting structures of the periodontium, leading to significant
tissue destruction.

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