MDS PREP
Fears produced by direct physical stimulation of sense organ of child
1) Wholesome
2) Objective
3) Subjective
4) Inordinate
Pedodontics
Answer: 2
What is the primary mechanism of action of Shiga-like toxins produced by EHEC?
1) Inhibits protein synthesis by binding to ribosomes
2) Induces lipid peroxidation in cell membranes
3) Increases intracellular cAMP
4) Induces endothelial cell damage
Shiga-like toxins produced by EHEC bind to ribosomes in target cells, particularly endothelial cells, and inhibit protein synthesis. This leads to cell damage and contributes to the development of hemolytic uremic syndrome.
The reshaping process of gingiva in the absence of periodontal pocket is
1) Curettage
2) Gingivoplasty
3) Gingivectomy
4) Flap operation
Periodontics
Answer: 2
Visible bleeding from an isolated medium sized vessel in a flap is best con trolled by,
1. bone wax
2. clamping and ligation
3. injecting vitamin K
4. chemical cautery
Oral Surgery
Answer: 2
Buccal canine retractors are used instead of palatine canine retractor when
1) Canine is buccaly placed
2) Canine is mesially placed
3) Canine is palatally placed
4) Canine is ectopically erupted
Orthodontics
Answer: 1
All of the following statements about the typical feature of a periapical
granuloma are true EXCEPT
1) It consists of proliferating granulation tissue
2) It can form only if the periapical bone is resorbed
3) It shows evidence of local antibody production
4) It results from immunologically mediated tissue damage
Oral Pathology Answer: 2
Periapical granulomas were diagnosed as well-circumscribed periapical
radiolucency measuring less than 1.5 cm in diameter, periapical cysts were
characterized by well-defined periapical radiolucency with sclerotic borders
measuring greater than 1.5 cm, and periapical abscesses were characterized by
ill-defined periapical radiolucency with diffuse margins.
While bone resorption can occur in the presence of a periapical granuloma, it
is not a prerequisite for its formation. A periapical granuloma can develop in
response to pulp necrosis or infection without necessarily requiring bone
resorption to occur first. The granuloma can form as a reaction to the
inflammatory process, regardless of the state of the surrounding bone.
The rate limiting step in glycolysis is catalyzed by:
1. Hexokinase
2. Phosphofructokinase
3. Enolase
4. Pyruvate kinase
Biochemistry
Answer: 2
The rate limiting step in glycolysis is catalyzed by Phosphofructokinase