FEB 2014 Past Question FOURTH YEAR B.D.S. DEGREE EXAM PAPER V - PROSTHODONTICS AND CROWN AND BRIDGE

[LE 675]                            FEBRUARY 2014                        Sub. Code:4183
FOURTH YEAR B.D.S. DEGREE EXAM PAPER V - PROSTHODONTICS AND CROWN AND BRIDGE
Q.P Code: 544183
Time: 180 Minutes                                                        Maximum: 70 marks


I. Elaborate on:                                                                           
(2X10=20)

1.  Define facebow. Discuss the types of facebow and how do you transfer a facebow.
2.  Define pontic. Discuss the Different types of pontic.


II. Write Notes on:                                                                       
(10X5=50)
1.  Surveyors
2.  Neutral zone
3.  Gingivally approaching clasp
4.  Combination syndrome
5.  Non-Arcon articulators
6.  Kennedy class 1 design – Maxillary arch
7.  Burs used for tooth preparation for fixed prosthesis
8.   Fluid control
9.  Tissue conditioners
10. Impression Techniques in removable partial dentures
*******

Tracheostomy Procedure

# In tracheostomy, the entry into the trachea is through the:
A. Cricoid cartilage
B. First tracheal ring
C. Second and third tracheal ring
D. Fourth and fifth tracheal ring

The correct answer is C. Second and third tracheal ring

In tracheostomy, the entry into the trachea is through 2nd - 4th tracheal rings. Entry through 1st ring results in tracheal stenosis and entry through 5th - 7th rings is very difficult. 

Entry through cricothyroid membrane is called cricothyroidotomy which ia a life saving procedure when endotracheal intubation is not possible.

Maximum permissible dose of radiation:

# The maximum permissible dose of radiation to the operator of an X ray machine is:
A. 0.05 rem per year
B. 0.5 rem per year
C. 5.0 rem per year
D. 50 rem per year

The correct answer is C. 5.0 rem per year.

Occupational dose limit	Maximum permissible dose per year
1. Gonad/ Bone marrow	5 rem
2. Skin	15 rem

Non occupational dose limit	Maximum permissible doses per year
1. Embryo/ Fetus gestation period	0.5 rem
2. General public	0.5 rem
3. Skin	15 rem
NOTE: 1 Sievert = 100 rem

What is the real color of this Dress? #Blueblack or #whitegold?

1. Black and Blue or
2. White and gold??

People say that we should believe some rumors only after our eyes see the thing. we. After seeing this picture and various opinions of people regarding its color, we doubt even our own eyes. What color do you see?? Would you bet all the money you have in the color you see if anyone claims that they see otherwise? For more details about the dress and the illusion, watch the Wikipedia page: The Dress

Share with your friends and ask what color do they see.