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MDS PREP
Instrument used for gingival retraction during rubber dam placement is
1) Retainer no. 208
2) Retainer no. 210
3) Retainer no. 212
4) Retainer no. 216
Conservative Dentistry Answer: 3

Compared to a cast circumferential clasp, a bar clasp
1. is less retentive
2. has greater tendency to collect and hold
3. in less acceptable esthetically
4. contributes more to bracing and stabilization
Prosthodontics Answer: 2

In the context of antitubercular therapy, which of the following is true about the metabolism of isoniazid and streptomycin?
(1) Both are metabolized in the liver
(2) Both are metabolized in the kidneys
(3) Isoniazid is metabolized in the liver, while streptomycin is metabolized in the kidneys
(4) Isoniazid is metabolized in the kidneys, while streptomycin is metabolized in the liver

Oral Medicine Answer: 3

Isoniazid is metabolized by the liver, while streptomycin is metabolized by the kidneys. This is important to consider when administering these drugs, especially in patients with hepatic or renal impairment.

Cognitive theory of child development was given by
1) Sigmoid Freud
2) Jean Piaget
3) Pavlov
4) Bandura
Pedodontics Answer: 2

The ideal instrument that is used to widen the canal is 
 1. Broach
 2. File
 3. Fissure bur
 4. Reamer
Endodontics Answer: 2

Repeated dislocation of the condyle can be treated by intentional fracture of the zygomatic arch and reunion. This procedure is called as 
 1. Stobe"s method
 2. Denkel"s method
 3. Dautery procedure
 4. Weber"s procedure
Oral Surgery Answer: 3

The best way to prevent exposure of dehiscene during surgical procedure is to
1) Elevate a double flap
2) Elevate full thickness flap
3) Elevate partial thickness flap
4) Elevate coronally repositioned flap
Periodontics Answer: 3

The most common level of thyroglossal cyst is
1) Lingual
2) Infralingual (caecum)
3) Suprahyoid
4) Infrahyoid
Oral medicine Answer: 4

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