Dentosphere : World of Dentistry

Q. Which of the following is the least reliable sign of pulpal disease in primary teeth?  A. Electronic pulp test B. Spontaneous pain C. Internal resorption D. Furcal radiolucency E. Swelling The correct Answer is A. Electronic pulp test Electronic pulp testing is very unreliable in primary teeth because the A fibers that are more easily stimulated by electricity appear late in pulpal maturity. The accuracy of the pulp testing may also be affected by the patient's ability to describe their response to the stimuli, to which, pediatric patients are typically not as able to describe their experiences in a clinically relevant way.

# Which of the following is the preferred local anesthetic technique for hemophilics? A. Nerve block B. Supraperiosteal C. Intraligamentary D. Field block The correct answer is C. Intraligamentary In hemophilics, to avoid complications, Intraligamentary (an intraosseous technique) method of local infiltration technique is preferred. In this technique, the solution is deposited in depth of gingival sulcus. The needle should be inserted apically into the bone until resistance is met.

# In peripheral nerve block, which of the following local anesthetics has the longest duration of action? A. Bupivacaine B. Cocaine C. Lignocaine D. Prilocaine The correct answer is A. BUPIVACAINE Etidocaine (200 mins) followed by Bupivacaine (180 mins) are long acting anesthetics and this is due to their increased protein binding property.

PERIODONTICS Questions Perio AIIMS, July 2014. SR ship 1.       Which of the following is a non resorbable suture a.  Vicryl b.  PGA/PGA c.   Surgical d.  Ethicon 2.       Which of the following is the most important virulent factor or P. Gingivalis? a.  Proteases b.  Hmbrac c.   Capsule d.  Polysaccharides 3.       Which of the following microbial group is associated with Aa? a.  Yellow b.  Red c.  Green d.  Purple 4.       RPP is caused by a.  P. Gingivalis and T. Denticola b.  P. Gingivalis and Aa c.   P. Gingivalis and T. Forsythia d.  P. Gingivalis and P. Intermedia 5.       The pH of regular non-stimulated saliva is a.  5-6 b.  6-7 c.   7-8 d.  >7 always 6.       What are calcispherites? a.  The calc...

[LM 675]                               FEBRUARY 2018              Sub. Code: 4220 FOURTH YEAR B.D.S. DEGREE EXAM (Common to Final Year Paper VII - Modified Regulation III Candidates and Final Year Paper V - New Modified Regulation Candidates) PAPER V – PROSTHODONTICS AND CROWN AND BRIDGE Q.P Code: 544220 Time: 180 Minutes                                                               Maximum: 70 Marks I. Elaborate on:                                                                                  (2 x 10 =...

[LL 675]                                    AUGUST 2017                Sub. Code: 4220 FOURTH YEAR B.D.S. DEGREE EXAM (Common to Final Year Paper VII - Modified Regulation III Candidates and Final Year Paper V - New Modified Regulation Candidates) PAPER V – PROSTHODONTICS AND CROWN AND BRIDGE Q.P Code: 544220 Time: 180 Minutes                                                               Maximum: 70 Marks I. Elaborate on:                                                                              ...

[LK 675]                                FEBRUARY 2017                Sub. Code: 4220 FOURTH YEAR B.D.S. DEGREE EXAM (Common to Final Year Paper VII - Modified Regulation III Candidates and Final Year Paper V - New Modified Regulation Candidates) PAPER V – PROSTHODONTICS AND CROWN AND BRIDGE Q.P Code: 544220 Time: 180 Minutes                                                               Maximum: 70 Marks I. Elaborate on:                                                                                  (...

[LJ 675]                                   AUGUST 2016                  Sub. Code: 4220 FOURTH YEAR B.D.S. DEGREE EXAM (Common to Final Year Paper VII - Modified Regulation III Candidates and Final Year Paper V - New Modified Regulation Candidates) PAPER V – PROSTHODONTICS AND CROWN AND BRIDGE Q.P Code: 544220 Time: 180 Minutes                                                               Maximum: 70 Marks I. Elaborate on:                                                                            ...

[LI 675]                                          FEBRUARY 2016                             Sub.  Code: 4183 FOURTH YEAR B.D.S. DEGREE EXAMINATION PAPER V – PROSTHODONTICS AND CROWN AND BRIDGE Q.P. Code : 544183 Time : Three Hours                                                                         Maximum : 70 Marks Answer All Questions I. Elaborate on:                                                                            ...

[LH 675]                                          AUGUST 2015                                 Sub. Code: 4183 FOURTH YEAR B.D.S. DEGREE EXAMINATION PAPER V – PROSTHODONTICS AND CROWN AND BRIDGE Q.P. Code: 544183 Time : Three Hours                                                                         Maximum : 70 marks Answer All Questions I. Elaborate on:                                                                          ...

[LG 675]                                  FEBRUARY 2015                      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:                                                                                (2 x 10 = 20) 1.  Describe in detail the various components of fixed partial dentures and its clinical ap...

[LF 675]                                           AUGUST  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 vertical jaw relation. Discuss the different types of ...

[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. I...

# 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.

# 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

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.

# The target of the X ray tube is angulated to produce all of the following except: A. To decrease the effective focal spot B. To increase the image sharpness C. To energize the photons D. To dissipate heat # Which of the following statements is false? A. X rays travel at the speed of 297600 km/sec B. X rays can be focused C. The nucleus of an atom contains protons and neutrons D. Cathode rays can be converged to a point # The 'heel effect' results: A. In low intensity X ray beam on anode side of central ray B. In high intensity beam of X rays towards cathode C. Both of them are true D. None of the above are true # Half value layer refers to: A. The rate at which an X ray photon transfer its energy to irradiated matter B. The thickness of a substance required to reduce the number of X ray photons by half C. The time taken for X ray photons to travel half the distance from the sourc...

# What is the function of the filtration process while taking radiographs? A. Remove the short wavelength photons B. Remove the portion of long wavelength photons C. To increase the radiation dose to the patient D. To increase the scatter of secondary radiation The correct answer is: B.  X-ray photons with short-wavelength have high penetration energy and are useful for diagnostic radiology X-ray photons of long-wavelength have low penetration energy and contribute to patient exposure only. These photons are removed by keeping aluminum filters in their path. The half-value layer is about 1.5 mm for an X-ray tube of 70 kVp and is about 2.5 mm for higher voltages.

# Which one of the following is an unpaired sinus? A. Cavernous sinus B. Sigmoid sinus C. Straight sinus D. Superior petrosal sinus The correct answer is C. Straight Sinus. Venous sinuses of dura mater are: Paired - 1. Cavernous sinus, 2. Superior petrosal sinus, 3. Inferior petrosal sinus, 4. Transverse sinus, 5. Sigmoid sinus, 6. Sphenoparietal sinus, 7. Petrosquamous sinus, 8. Middle meningeal sinus Unpaired: 1. Superior sagittal sinus, 2. Inferior sagittal sinus, 3. Straight sinus , 4. Occipital sinus, 5. Anterior intercavernous sinus, 6. Posterior intercavernous sinus, 7. Basilar plexus of veins, 8. Sphenoid air sinus

# Mixed tumors of the salivary glands are: A. Most Common in Submandibular gland B. Usually malignant C.Most Common In parotid gland D. Associated with calculi The correct answer is C. Most Common in parotid gland.