MDS PREP
Flabby tissues found in the anterior region under the complete dentures results from
1. Absence of contacts in centric relation
2. Presence of the anterior contacts in centric relation
3. Protrusive contacts of the anterior tooth
4. Increased freeway space
Prosthodontics
Answer: 2
Trotter"s syndrome involves
1. Pharynx
2. Oropharynx
3. Larynx
4. Nasopharynx
Oral Pathology
Answer: 4
Cyclosporine enlargement of gingiva can be classified as
1. Non inflammatory
2. Inflammatory
3. Developmental
4. Malignant
Oral Medicine
Answer: 1
An endodontist failed to obturate an accessory canal while obturating main canal. Immediate treatment
1) No treatment, observe periodically
2) Surgical expose and retrofill
3) Retrieve and reobturate
4) Apicetomy and retrofill
Endodontics
Answer: 1
Which of the following is NOT a typical anaerobe found in human microbiota?
1) C1. Perfringens
2) C1. Tetani
3) C1. Difficule
4) C1. Botulinum
General Microbiology Answer: 2
C1. Tetani (Clostridium tetani) It is a spore-forming, gram-positive
bacillus that causes tetanus, a neurological disorder resulting from the
production of tetanospasmin, a toxin that affects the nervous system. It is
usually found in soil, dust, and manure, and enters the body through breaks in
the skin.
C1. Perfringens (Clostridium perfringens) is an anaerobic, gram-positive
bacillus commonly found in the gastrointestinal tract and soil. It can be a part
of the normal flora in the intestines and is also a pathogen, causing diseases
such as food poisoning and gas gangrene.
C1. Difficule (Clostridium difficule) is an anaerobic, gram-positive
spore-forming bacillus that is part of the human gut microbiota. It is notorious
for causing antibiotic-associated diarrhea and pseudomembranous colitis.
C1. Botulinum (Clostridium botulinum) is an anaerobic, spore-forming,
gram-positive bacillus found in various environments, including soil and water.
It is known for producing the neurotoxin that causes botulism, a rare but severe
form of food poisoning.
Compbell line is seen in
1. Transpharyngeal view
2. Transorbital view
3. Occipitomental view
4. Towne view
Oral Surgery Answer: 3
The Campbell line is an important anatomical reference line
used in radiology, particularly in the context of the occipitomental
view (also known as the Water's view). This line is drawn from the
outer canthus of the eye to the midpoint of the maxillary sinus and is used to
assess the position of the maxillary sinuses and other related structures in the
skull.
Occipitomental view: This view is commonly used in
maxillofacial imaging to visualize the maxillary sinuses, orbits, and nasal
cavity. The Campbell line helps in evaluating the relationship of these
structures.
Transpharyngeal view: This view is used to visualize the
pharynx
Transorbital view: This view focuses on the orbits and
surrounding structures
Towne view: This view is used to visualize the occipital
bone and the base of the skull
In a deep pocket of 6 mm, calculus is found only as a thin ring at apical third. It may be due to
1) Calculus formation occurs only at bottom of the pocket
2) Fracture and dislodgement of enamel part of calculus
3) Both A and B
4) None of the above
Periodontics
Answer: 2
Addition of carbon is contraindicated in which of the following investment materials :
1) Gypsum bonded
2) Silica bonded
3) Phosphate bonded
4) All
Dental Materials Answer: 3
Occurence of carbon contamination from investment can easily be observed in case casting temp. are high as seen in melting of high noble alloys for metal ceramic (eg. AgPd or Pd-Ag alloys) or base metal alloys.
Such contamination embrittles the alloy.