Indices

Question 1

The accuracy of an Examination is affected by 2 factors

Answer 1

Reproducibility

Validity

Question 2

Reproducibility

Answer 2

The ability to produce the same result every time the test was repeated in the same patient

Question 3

Validity

Answer 3

The ability of a test to discriminate between people with and without disease

Question 4

Sensitivity

Answer 4

The probability that a test result will be positive when the test is administered to people who actually have the disease in question

Question 5

Specificity

Answer 5

The probability that at est will be negative when administered to people who are free of the disease in question

Question 6

Predicative Value Positive

Answer 6

The probability of disease in a subject with a positive test result

Question 7

Predictive Value Negative

Answer 7

The probability of not having the disease when the test is negative

Question 8

Halo Effect

Answer 8

The examiners general impression of target distorts his/her perception of the target on specific dimensions

Question 9

Leniency/Severity Error

Answer 9

The examiners tendency to be lenient or severe

Question 10

Central Tendency Error

Answer 10

The examiners reluctance to rate at either the positive or negative extreme so all scores cluster in the middle

Question 11

Parameters Commonly Used in Clinical Periodontology

Answer 11

Plaque Accumulation
Calculus Formation
Gingival Inflammation
Periodontal Destruction
Periodontal Treatment Needs

Question 12

Silness and Loe Plaque Index

Answer 12

Association of plaque and pregnancy gingivitis

Measures abundance of plaque

No disclosing

Index teeth

Question 13

Index Teeth

Answer 13

Teeth 3, 9, 12, 19, 25, 28

Advantages: Representative fo changes in entire mouth
Less time

Question 14

Plaque Index scoring

Answer 14

0-none
1-plaque detected by running probe along margins
2-visible
3-abundant

Question 15

NIDR Calculus Index

Answer 15

0-absent
1-Supragingival calculus but no subgingival calculus is present
2-Supragingival and subgingival or sublingual calcusl only is present

Question 16

Gingival Index

Answer 16

0-healthy
1-Mild Inflammation
Slight change in color
A slight edema
No BOP
2- Moderate Inflammation
Redness
Edema
Glazing
BOP
3-Severe Inflammation
Marked redness
Edema
Ulceration
Spontaneous bleeding

Question 17

Bleeding on probing ______ after retraction of probe

Answer 17

15 seconds

Question 18

BOP is a valid indicator for _____ but poor for ______

Answer 18

Periodontal stability

Periodontal breakdown

Question 19

Factors Affecting probe readings

Answer 19

Probing force

Probe angulation

Tissue condition