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Quigely Hein Index (modified)

- Quigley Hein Index -
(Modified by Turesky et al, 1970)


Guest editor: Kaban Moslehzadeh

This index is the same as the Quigley Hein Index except the criteria has been modified. As Quigley Hein Index, a score of 0 to 5 is assigned to each facial and lingual nonrestored surface of all the teeth except third molars, as follows


The Plaque Index System

Scores

Criteria

0

No plaque

1

Separate flecks of plaque at the cervical margin of the tooth

2

A thin continuos band of plaque (up to one mm) at the cervical margin of the tooth

3

A band of plaque wider than one mm but covering less than one-third of the crown of the tooth

4

Plaque covering at least one-third but less than two-thirds of the crown of the tooth

5

Plaque covering two-thirds or more of the crown of the tooth



An index for the entire mouth is determined by dividing the total score by the number surfaces ( a maximum of 2 x 2 x 14 = 56 surfaces) examined.




CALCULATION EXAMPLE:


Assuming nonrestored upper jaw and lower jaw surfaces are examined and the scores are stored in the following two tables:


Upper jaw

Buccal surface score

Lingual surface score

25

2

2

22

1

3

21

3

2

11

0

1

12

0

0

13

1

2

14

1

3

15

2

2

17

5

3

Total

15

18

 
 

Lower jaw

Buccal surface score

Lingual surface score

47

4

5

44

3

5

43

2

3

42

2

3

41

2

4

31

2

3

32

0

2

33

0

2

34

0

0

Total

15

27


Index = Total score / The number surfaces examined
((15 + 18) + (15 + 27)) / 36 = 2.1


The index for the entire mouth is 2.1.


Last updated by Gisela Ladda Tayanin