MDS PREP
Which of the following statements regarding an endogram is false
1) Extent of internal resorption can be viewed in endogram
2) Conventional radiograph and digital radiograph both can be used to produce endogram
3) Endogram is used to confirm correct working length
4) None of the above
Endodontics
Answer: 3
Geographic tongue, all are true except
1) Lesions may be bilaterally symmetrical on tongue
2) No treatment is required
3) Is a precancerous condition
4) May be related to emotional stress
Oral Pathology
Answer: 3
Id reaction is associated with
1. Aphthous ulcer
2. Herpetic stomatitis
3. Syphilis
4. Candidiasis
Oral Pathology
Answer: 4
The maximum dose of lignocaine without adrenaline that can be administered to a patient is
1. 4 mg/kg body wt
2. 5 mg/kg body wt
3. 5 mg/kg body wt
4. 9 mg/kg body wt
Oral Surgery
Answer: 3
The maximum dose of lignocaine without adrenaline that can be administered to a patient is 5 mg/kg body wt.
Main aim of restoration of carious lesion in phase-I therapy
1) To restore function of tooth
2) To restore form of tooth
3) To reduce microbial source
4) All of the above
Periodontics
Answer: 3
A young patient has bilateral, pearly white thickening of the buccal mucosa since birth. His younger brother also has similar lesions. History and clinical findings are consistent with a diagnosis of
1) Leukoedema
2) White sponge nevus
3) Lichen planus
4) Mucous patches
Oral Pathology
Answer: 2
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.