- The transparent layer is a zone of carious dentin that is softer than normal dentin and shows further loss of mineral from the intertubular dentin. Stimulation of this region will not produces pain, no bacteria are present.
A. 1st statement is correct, 2nd statement is incorrect C. both statement are correct
B. 1st statement is incorrect, 2nd statement is correct D.both statement are incorrect
A. 1st statement is correct, 2nd statement is incorrect
- The surface zone is relatively unaffected by the caries attack. It has a lower pore volume than the body of the lesion and a radiopacity comparable to affected adjacent enamel.
A. both the statement and the reason are correct and related
B. both the statement and the reason are correct but not related
C. the statement is correct, but the reason is not
D. the statement is not correct, but the reason is correct E. neither the statement nor the reason is correct
C. the statement is correct, but the reason is not
13.Chisel are used primarily to cut enamel. Hatchets are primarily used to cut dentin.
A. Both statement are true.
B. Both statement are false.
C. 1st statement is true, 2nd statement is false
D. 1st statement is false, 2nd statement is true
C. 1st statement is true, 2nd statement is false
18.Dental Caries depends on the balance between demineralization of organic and inorganic substance. Demineralization occurs when the pH level of the mouth drops below 4.
A.Both statements are correct
B.Both statements are incorrect
C.1st statement is correct,2. statement is incorrect
D.1st statement is incorrect, 2nd statement is correct
D.1st statement is incorrect, 2nd statement is correct
- A tapered fissure bur can be described as a slightly tapered cone, the small end of the cone directed towards the bur shank.
A. 1st statement is correct, 2nd statement is incorrect
B. 1st statement is incorrect, 2nd statement is correct
C. Both statement are correct
D. Both statement are incorrect
C. Both statement are correct
- Salivary glands produce antimicrobial products, buffer reduce the potential for acid formation not causes to ph to rise.
A. Both statements are correct.
B. Both statements are incorrect
C. 1st statement is correct, 2nd statement is incorrect
D. 1st statement is incorrect 2nd statement is correct
C. 1st statement is correct, 2nd statement is incorrect
- The modified pen grasp is the most common instrument grasp in dentistry; this is because it allows for the greatest intricacy and delicacy of touch.
A. both the statement and the reason are Correct and related
B. Both the statement and the reason are correct but not related
C. The statement is correct, but the reason is NOT correct D. The statement is NOT correct, but the reason is Correct E. neither the statement nor the reason is correct
A. both the statement and the reason are Correct and related
- Hand cutting instruments are manufactured from two main materials: carbon steel and stainless steel. In addition, some instruments are made with diamond inserts to provide more durable cutting edges.
A. Both statement are correct and related
B. Both statement are incorrect and not related
C. Ist statement is correct, 2nd statement is incorrect
D. Ist statement is correct, 2nd statement is correct
C. Ist statement is correct, 2nd statement is incorrect
- In the Zone of dentinal sclerosis Intertubular dentin is demineralized, damage to the odontoblastic zone process is not apparent.
A. 1st statement is true, 2nd statement is false
B. 1st statement is false, 2nd statement is true
C. both statement are true
D. both statement are falsely
A. 1st statement is true, 2nd statement is false
- In cavity preparation we need different kinds of burs, it is a hand instrument having nib for fattening the pulpal floor
A. 1st statement is correct ,2nd statement is incorrect
B. 1st statement is incorrect, 2nd statement is correct
C. both statement are correct
D. both statement are incorrect
A. 1st statement is correct ,2nd statement is incorrect
- Instrumentation will produce heat, heat produces 130 degrees fahrenheit results to permanent pulpal damage.
A. 1st statement is correct, 2nd statement is incorrect
B. 2nd statement is correct, 1st statement is incorrect
C. both statement are correct
D.both statement are incorrect
C. both statement are correct
- Hoe is used to define line and points angle of class Ill and class v, angle former is used to establish retention form.
A. 1st statement is right, 2nd statement is wrong
B. 1st statement is wrong, 2nd statement is right
C. Both statement are right
D. Both statement are wrong
A. 1st statement is right, 2nd statement is wrong
47.Operative dentistry is foundation of the dentistry from Which all branches have evolved, which will require full coverage restorations for correction.
A. 1st statement is correct, 2nd statement is incorrect
B. 1st statement is incorrect,2nd statement is correct
C. both statement are correct
D. both statement are incorrect
D. both statement are incorrect
- The rate of senile caries is increasing, in part, because of the increase in gingival recession
A. both the statement and the reason are correct and related
B. both the statement and the reason are correct but not related
C. the statement is correct, but the reason
D. the statement is not correct, but the reason is correct E. neither the statement nor the reason is correct
A. both the statement and the reason are correct and related
- Specific microorganism selectively adhere to certain locations on the teeth, not influencing the over all structure and composition of dental plaque.
A. both statements are true
B. both statements are false
C. the statement is true, the second is false
D. the first statement is false, the second is true
C. the statement is true, the second is false
- To polish a restoration, you will likely use a bur with less cutting blades. This is because a bur with less cutting blades will cut more efficiently.
A. both the statement and the reason are correct
B. both the statement and the reason are incorrect
C. the statement is correct, but the reason is not
D. the statement is not correct, but the reason is correct
D. the statement is not correct, but the reason is correct
- Intracoronal restoration is placed directly into the tooth preparation while extracoronal restoration uses an direct technique with impression to make the necessary tooth restoration-
a.1st statement is correct, 2nd statement is incorrect
b.1st statement is incorrect, 2nd statement is correct c. both satement are correct
d. both statement are false
a.1st statement is correct, 2nd statement is incorrect
- Prepare tooth such that under masticatory forces and restoration will not fracture and restoration is displaced. Restoration is usually required to repair a diseased, injured or defective tooth structure.
a.1st statement is true, 2nd statement is false
b.1st statement is false, 2d statement is true
c. both statement are true
d. both statement are false
b.1st statement is false, 2d statement is true
- It should consist of smooth curves, straight lines and rounded line and point angles. Enamel which is supported by dentin as well as the demineralized enamel should be removed since it is liable to fracture.
a. 1st statement is correct, 2nd statement is incorrect
b. 1st statement is in correct, 2nd statement is correct
C. both satement are correct
d. both satement are incorrect
a. 1st statement is correct, 2nd statement is incorrect
