MDS PREP
A temporary bridge constructed from a synthetic resin
1) Is not required when the missing tooth is provided on a partial denture
2) Should have the same buccal and lingual contours as the permanent bridge
3) Should restore the occlusion to the same extent as the permanent bridge
4) None of the above
Prosthodontics
Answer: 4
The colour of a nitrous oxide cyinder is
1. Red
2. Blue
3. White
4. Black
Oral Surgery
Answer: 2
Premature exfoliation of deciduous teeth is seen in
1. Hypophosphatasia
2. Hypophosphataemia
3. Hyperphosphtasia
4. Hyperparathyrroidism
Oral Pathology
Answer: 1
Premature exfoliation of deciduous teeth is seen in hypophosphatasia.
The main disadvantage of uprighting first molar with a loop lingual arch is
1) Extrusion of molars
2) Overcorrection of molars
3) Flaring of mandibular incisors
4) All of the above
Orthodontics
Answer: 3
One of the main disadvantages of using a loop lingual arch to upright the first molar is that it can lead to flaring of the mandibular incisors due to the forces applied.
A 45-year-old woman has a nodule in the neck which moves during swallowing. The nodule most probably is attached to
1) Thyroid
2) Larynx
3) Oesophagus
4) Pharynx
Oral medicine
Answer: 1
Which of the following is of salivary gland origin?
1. Acinic cell carcinoma
2. Granular cell myoblastoma
3. Chondrosarcoma
4. All of the above
Oral Pathology
Answer: 1
Which of the following substances does NOT directly depolarize taste cells during the sensation of bitter taste?
1) Increased intracellular calcium (Ca+) concentration
2) Activation of amiloride-sensitive Na+ channels
3) Closure of K+ channels
4) Release of neuronal glutamic acid
Bitter taste is mediated by the activation of bitter receptors, which are G protein-coupled and result in an increase in intracellular Ca+2 and subsequent neurotransmitter release, not by the activation of sodium channels as seen in salty taste transduction.