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NEET MDS Quiz - Practice Test
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Practice Test

Endodontics - 3 Questions

1
Endodontics
Discolouration of endodontically treated tooth results from 
 1. Improper debridement
 2. Sealer cement left in pulp chamber
 3. Obturating materials
 4. All of the above

📝 Explanation:

Discoloration of endodontically treated teeth results from all the mentioned factors: 1) Improper debridement - leaving pulp tissue remnants that decompose and stain dentin, 2) Sealer cement left in pulp chamber - certain sealers contain heavy metals that cause gray discoloration, 3) Obturating materials - silver points cause gray-black discoloration, some sealers stain over time. Prevention involves: thorough pulp chamber cleaning, complete sealer removal from chamber, avoiding silver points, and proper access cavity seal.

2
Endodontics

First line of treatment in the case of an acute apical abscess with swelling is 
1. Establish drainage
2. Prescribe antibiotics
3. Prescribe analgesics
4. No treatment, reassurance

📝 Explanation:

Establishing drainage is the first priority in acute apical abscess with swelling. This can be through pulp chamber access, incision and drainage, or extraction - whichever provides fastest drainage and pressure relief.

3
Endodontics
A patient reports of dull pain in the jaws. Pain is more severe immediately after walking up from a night sleep. Patient also complains of difficulty in opening mouth. The probable cause may be
1) Pulpitis
2) Bruxism
3) Periodontitis
4) Migraine

📝 Explanation:

The symptoms described in the image are characteristic of bruxism, which is the involuntary grinding or clenching of teeth.

Dull pain in the jaws is a common symptom due to muscle strain.

Pain being more severe after waking up is typical, as the clenching/grinding often occurs during sleep.

Difficulty opening the mouth (trismus) results from the overworked and tense jaw muscles.

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