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NEET MDS Quiz - Practice Test
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Practice Test

endodontics - 3 Questions

1
Endodontics
The origin of calcium ions in a calcific bridge formed by calcium hydroxide is 
 1. From calcium hydroxide itself
 2. From underlying dentin
 3. Through blood stream via pulp
 4. From periapical tissues

📝 Explanation:

Calcium ions in calcific bridges formed after calcium hydroxide treatment come from the blood supply through the remaining vital pulp tissue, not from the calcium hydroxide itself or surrounding dentin.

2
Endodontics
Proximal caries results in pulpal involvement. Restoration of choice after endodontically treating this tooth 
 1. MOD inlay
 2. MOD onlay
 3. Full crown
 4. None of the above

📝 Explanation:

After endodontic treatment, teeth lose moisture and become more brittle. An MOD onlay provides better protection by covering cusps and distributing occlusal forces, unlike an inlay which does not protect cusps from fracture.

3
Endodontics

After treatment of a non-vital tooth with a sinus, the sinus 
1. Should be filled with gutta-percha
2. Cauterised electrosurgically
3. Heals by itself, no treatment
4. Cauterised chemically

📝 Explanation:

After successful endodontic treatment of a tooth with sinus tract, the tract heals spontaneously within days to weeks as the source of infection is eliminated. No additional treatment of the sinus tract itself is needed.

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