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NEET MDS Quiz - Practice Test

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Practice Test

Oral Surgery - 3 Questions

1
Oral Surgery
Which of the following local anaesthetics is a vasoconstrictor  
 1. Lidocaine
 2. Procaine
 3. Bupivacaine
 4. Ropivacaine

📝 Explanation:

Ropivacaine is a vasoconstrictor.

2
Oral Surgery
Pain is the outstanding clinical characteristic of
1. a myxoma
2. a torus palatinus
3. a chondromyxoid fibroma
4. an osteoma

📝 Explanation:

A chondromyxoid fibroma is a rare, benign bone tumor that typically causes pain as its most prominent clinical symptom. The other options listed are generally associated with little to no pain. A myxoma is usually painless. A torus palatinus and an osteoma are typically slow-growing, hard, bony growths that are asymptomatic unless they interfere with function or are traumatized.

3
Oral Surgery
Pain may be reduced in local anesthetic injections by
1. using a large diameter needle with sharp tip
2. heating the anesthetic solution to 100C before injecting
3. pulling tissue over the advancing needle rather than inserting needle into tissue 4. injecting and withdrawing as fast as possible

📝 Explanation:

Pulling the tissue taut or over the advancing needle helps in anesthetizing the nerve endings ahead of the needle tip, making the procedure less painful.

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