Periodontal indices 10/7/15

Question 1

What is the Simplified Oral Hygiene Index? (OHI-S)

Answer 1

a method to assess oral cleanliness by estimating the tooth surface covered with debris and or calculus

Question 2

What are the components of the OHI-S?

Answer 2

• Simplified Debris index

- Simplified calculus index

Question 3

What are the tooth #s used in the OHI-S?

Answer 3

Facial of: 3, 8, 14, 24

Lingual of 19 and 30

Question 4

OHI score = ?

Answer 4

Debris index + Calculus index

Question 5

What is a good OHI score?

Answer 5

0 = excellent

0. 1-1.2 = good
1. 3 - 3.0 = fair
2. 1 - 6 = poor

Question 6

What is the plaque index?

Answer 6

PI assesses the amount of plaque at he gingival margin, examining the same anatomical units as the GI.

Question 7

What is the range of the plaque index?

Answer 7

0-3

• Probe used to distinguish between 0 and 1
• visible plaque is a 2 or 3
• PI is computed for tooth, subject or population

Question 8

Describe the Turesky Modification of the Quigley-Hein PI…..

Answer 8

0 = No plaque
1 = Spots of plaque at cervical margin 
2 = thin continuous band of plaque at cervical margin less than 1mm.
3 = A plaque band greater than 1mm but less than 1/3 of crown height.
4 = Plaque covering more than 1/3 of crown height but less than 2/3.
5 = Plaque covering more than 2/3 of crown height.

Question 9

The Quigley-hein PI is biased towards ______.

Answer 9

The gingival third of the tooth surface.

Question 10

_______ is the most frequently used plaque index in clinical trials.

Answer 10

Turesky Mod. of the Q-H PI

Question 11

What are the “other” PI’s?

Answer 11

Modified Navy PI
Irritants Index
Patient Hygiene Performance Index
Plaque control record

Question 12

Describe the NIDR Calculus Index…..

Answer 12

0 = Calculus is absent
1 = Supra-gingival calculus, but no sub gingival calculus is present
2 = Supra and sub gingival calculus is present, or only sub gingival.

Question 13

Describe the Volpe-Manhold Index….

Answer 13

• Determines the quantity of supra gingival calculus
• Uses lingual surface of lower anterior teeth (22-27)
• Quantity is determined in mm of calculus along the 2 diagonal and the central lines drawn over the lingual surface of each tooth.
• Index expressing in mm and is computed for tooth, subject and populations.

Question 14

What is the most frequently used calculus index in longitudinal studies?

Answer 14

Volpe-Manhold Index

Question 15

What is the Papillary-Marginal-Attachement (PMA Index)?

Answer 15

Facial gingival is divided into 3 scoring units:
Papillary
Marginal
Attachement

*Gingival units affected with gingivitis are counted, presence or absence of inflammation is counted as 1 and 0 respectively.

Question 16

What is the Gingival Index?

Answer 16

The severity of inflammation is assessed in 4 distinct gingival areas: Distofacial papilla, facial margin, mesofacial papilla, lingual gingival margin.

*Scores 0-3: bleeding is considered. Presence of bleeding automatically = >2

Question 17

When is the Gingival Index helpful?

Answer 17

Useful for the calculation of prevalence and severity in population and individuals

Question 18

Describe the Modified Gingival Index….

Answer 18

Scores 0 - 4
0 = no inflammation, normal appearance
1 - 2= slight change in color, no change in texture
3 = Inflammation and glazing, redness, edema and hypertrophy
4 = severe inflammation and marked redness, edema, hypertrophy, bleeding, congestion or ulceration

Question 19

What is the BOP Index (bleeding on probing)?

Answer 19

• Bleeding tendency assessed upon probing with standardized pressure.
• Bleeding is observed 15sec following retracting of probe
• Presence or absence of bleeding is scored as 1 and ) respectively NOT TO BE CONFUSED WITH BLEEDING IN GI INDEX.

Question 20

BOP is a valid indicator for _______, but a poor indicator of ____________.

Answer 20

• periodontal stability

- Periodontal breakdown

Question 21

What is the Extent and Severity Index (ESI)?

Answer 21

Disease is defined as attachment loss >1mm

Question 22

Describe the Periodontal Index System (PI)….

Answer 22

0 = negative
1-2 = gingivitis
6 = gingivitis with pocket formation
8 = advanced destruction with loss of masticatory function
*Entire circumference of tooth is inspected VISUALLY and given a score

Question 23

Which teeth are examined in the PI?

Answer 23

All of them!

Question 24

What are the components of the Periodontal Disease Index System? (Not PI)

Answer 24

• Gingival status
• Crevicular measurements
• Periodontal Disease Index
• Plaque Criteria
• Calculus Criteria
• Head circumference

J/k on the last one

Question 25

How is the Periodontal Disease Index scored?

Answer 25

1,2,3 = Severity of Gingivitis 
4 = Initial attachment loss less than 3mm
5 = Moderate attachment loss greater than 3mm but less than 6mm
6 = Advanced attachment loss >6mm

Question 26

How are teeth examined using the Periodontal Disease Index?

Answer 26

4 areas per tooth are examined USING A PROBE. The most severe score tabulated and used for the calculation of the subjects PDI.

Question 27

What is the Community Periodontal Index of Treatment Needs (CPITN)?

Answer 27

Primarily designed to assess periodontal treatment needs in underserved parts of the world.

• Uses special probe
• 10 teeth are examined and worst finding is record per sextant.
• Out of 6 scores the worst score determines treatment need score.

Question 28

What are the periodontal status scores of the CPITN?

Answer 28

1 = BOP
2 = calculus felt during probing, crevicular depth less than 3mm
3 = Probing depth of 4mm or 5mm
4 = probing depth greater than 6mm