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NEETMDS- Oral Surgery mcq
MDS PREP
Frequently which of the following constitutes is amide type local anaesthesia causes allergic reaction 
 1. Lignocaine hydrochloride
 2. Methyl paraben
 3. Adrenaline
 4. Contaminants in the solution
Oral Surgery Answer: 2

Methyl paraben frequently causes allergic reactions in amide type local anaesthesia.

Inferior alveolar nerve block is absolutely contraindicated in patients suffering from one of the following diseases 
1. Thrombocytopenia
2. Haemophilia
3. Hypoprothrombinaemia
4. Von Willebrand"s disease

Oral Surgery Answer: 2

Inferior alveolar nerve block is absolutely contraindicated in patients suffering from haemophilia.

Which of the following is preferred local anaesthetic technique for haemophilics 
 1. Nerve block
 2. Supraperiosteal
 3. Intraligamentary
 4. Field block
Oral Surgery Answer: 3

Intraligamentary anaesthesia is the preferred local anaesthetic technique for haemophilics.

Of the following in which condition local anaesthesia is ineffective? 
 1. Oedema
 2. Localised infection
 3. Haematoma
 4. Anaemia
Oral Surgery Answer: 2

Local anaesthesia is ineffective in localized infection.

Dislocation is treated by forcing the mandible 
 1. Upwards and backward
 2. Upwards and forwards
 3. Downwards and forwards
 4. Downwards and backwards
Oral Surgery Answer: 4

Dislocation is treated by forcing the mandible downwards and backwards.

Which of the following is not used as a topical LA? 
 1. Procaine
 2. Tetracaine
 3. Lidocaine
 4. Benzocaine
Oral Surgery Answer: 1

Procaine is not used as a topical local anaesthetic.


Gillies approach for reduction of zygomatic fractures is done through 
 1. Temporal fossa
 2. Infra temporal fossa
 3. Infra orbital fossa
 4. All of the above
Oral Surgery Answer: 1

The temporal fossa is located on the side of the skull, above the zygomatic arch and lateral to the orbit. The Gillies approach involves an incision in the temporal region to access the zygomatic bone, which is then manipulated to reduce the fracture and restore its normal anatomical position. This approach is commonly used in oral and maxillofacial surgery for the management of complex zygomatic fractures.

In endodontic surgery, which of the following about chromic gut suture is not true 
 1. Its properties are inferior to plain gut suture
 2. It is coated with chromium tri-oxide
 3. It is less biocompatible than plain gut suture
 4. Its absorption is faster than the plain gut sutures
Oral Surgery Answer: 4

In endodontic surgery, the statement that chromic gut suture has faster absorption than plain gut sutures is not true.

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