MDS PREP
Walshama"s forceps are used to
1) Remove teeth
2) Remove root
3) Clamp blood vessels
4) Reduce nasal bone fractures
Oral Surgery
Answer: 4
Walsham's forceps are a surgical instrument commonly used in maxillofacial surgery. They are designed to reduce and manipulate small, fine bony structures, such as the nasal bones in the case of nasal fractures.
A fracture resulting from the destruction of bone by local or systemic disease is termed
1. greenstick fracture
2. impacted fracture
3. complicated fracture
4. pathological fracture
Oral Surgery
Answer: 4
A pathological fracture occurs when a bone breaks in an area weakened by disease, such as cancer, osteoporosis, or infection. Unlike traumatic fractures, which result from an external force, pathological fractures occur due to underlying conditions that compromise the structural integrity of the bone.
The sterilising units should be monitored at which of the following intervals
1. Daily
2. Weekly
3. Biweekly
4. Monthly
Oral Surgery
Answer: 2
Sterilizing units should be monitored weekly to ensure proper function and
efficacy in killing bacteria and other microbes. This is done through
biological, chemical, and physical indicators.
Diplopia is most common with
1. Mandibular fracture
2. Craniofacial dysjunction
3. Nasal fractures
4. Zygomatico maxillary complex
Oral Surgery
Answer: 4
Diplopia, or double vision, can occur due to various types of facial fractures, particularly those involving the zygomaticomaxillary complex (ZMC). Fractures in this area can lead to muscle entrapment or damage to the extraocular muscles, resulting in misalignment of the eyes and subsequent diplopia. The ZMC is a critical area for the stability of the orbit and the surrounding structures, making it a common site for such complications.
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
Inferior alveolar nerve block is absolutely contraindicated in patients suffering from haemophilia.
The first sensation to be lost following administration of local anaesthetic is
1. Proprioception
2. Pain
3. Touch
4. Temperature
Oral Surgery
Answer: 2
The first sensation to be lost following administration of local anaesthetic is pain.
The effect of local anaesthesia can be increased by the addition of
1) Adrenaline
2) Isoprenaline
3) Dopamine
4) Felypressin
Oral Surgery
Answer: 1
Explanation:
Adrenaline (epinephrine) is commonly added to local anesthetics to prolong their effect and reduce bleeding in the area. It works by constricting blood vessels, which decreases the rate of absorption of the anesthetic into the bloodstream, thereby enhancing its duration of action.
In dislocation of the jaw, displacement of the articular disc beyond the TM joint results from spasm of excessive contraction of the following muscle
1. Buccinator
2. Lateral pterygoid
3. Masseter
4. Temporalis
Latreal Pterygoid is inserted on Mandible