1. All of the following are ideal requisites of an index, except

a. Quantifiability
b. Qualitifiability
c. Objectivity
d. Validity

2. The index that is age specific

a. OHIS
b. DMFT
c. Def
d. DMFS

3. The OHI-S index developed by Greene and Vermillion is used to measure

a. Dental caries
b. Gingivitis
c. Oral debris and calculus
d. Periodontal disease

4. The scoring given in periodontal index for gingivitis is

a. 1
b. 2
c. 4
d. 6

5. For dermining periodontal disease an epidemiological survey is done by using

a. Gingival index (GI)
b. Plaque index (PI)
c. Periodontal index (PI)
d. None of the above

ANSWERS & DESCRIPTION

Q1- B

IDEAL REQUISITES OF AN INDEX: 1. Clarity, simplicity and objectivity, 2. Validity , 3. Reliability , 4.Quantifiability , 5. Sensitivity , 6. Acceptability

Q2- C

Def Index is done only in 1° dentition stage.

Q3- C

GREEN VERMILLION INDE

• Measures oral hygiene.
• Has two components, the simplified debris index and the simplified calculus index. It differs
  original OHI index in the number of teeth examined is only six. They are 16 , 26, 36, 46, 11, 31 ( same as PHP index)
• The selection of surfaces to be scored in OHI-S index are labial surfaces pf incisors , buccal
  surfaces of upper molars and lingual surfaces of lower molars

Q4- B

Score criteria to give score
0 No inflammation
1 Mild gingivitis
2 Gingivitis
4 Used when radiographs are available. There is early notch like resortion of alveolar crest-starting of periodontitis
6 Gingivitis with pocket formation
8 Advanced bone loss with loss of masticatory function

Q5- C

Periodontal index is the only index that is used in ten standard health surveys