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
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.