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NEETMDS- Periodontics mcq
MDS PREP
During activation of a scaling instrument, the facial surface of the blade and tooth surface should form an angle of 
 1. > 15 but < 45
 2. > 30 but < 60
 3. > 45 but < 90
 4. > 90 but < 180
Periodontics Answer: 3

During activation of a scaling instrument, the facial surface of the blade and tooth surface should form an angle of > 45 but < 90 degrees.


Stippling is seen on
1) Marginal gingiva
2) Attached gingiva
3) Interdental gingiva
4) None of the above
Periodontics Answer: 2

Stippling is typically observed on the attached gingiva, indicating healthy
tissue.

ANUG affects the 
 1. Attached gingiva
 2. Marginal gingiva
 3. Alveolar mucosa
 4. Interdental papilla
Periodontics Answer: 4

ANUG primarily affects the interdental papilla.

The electronic probing system "Foster-miller probe" detects
1) Only the pocket depth
2) Only the CEJ
3) CEJ and pocket depth
4) Furcation involvement
Periodontics Answer: 3

Transformation of plaque into calculus results from
1) Local rise of degree of saturation of calcium and phosphate
2) Lowering of Ca-p precipitation constant
3) Increased alkalinity
4) All of the above
Periodontics Answer: 4

After reflection of full thickness graft, post surgical alveolar bone loss is greatest at 
 1. Thin facial margin
 2. Thick lingual margin
 3. Interproximal bone
 4. No bone loss at all
Periodontics Answer: 1

Humectant in a toothpaste serves
1) As an abrasive
2) Retains moisture
3) Falvouring agent
4) Foaming agent
Periodontics Answer: 2

Not a contributing factor for ANUG
1) Pericoronal flap
2) Poor oral hygiene
3) Smoking
4) Aphthous ulcers
Periodontics Answer: 4

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