Page 80 - Ebook_V01

µÒÃÒ§·Õè 1 Classification of enamel defects: DDE index [29]

Code

Permanent teeth Primary teeth

a. Types of defect

Normal 0 A
Opacity (white / cream) 1 B

(yellow / brown) 2 C

(pits) 3 D

(grooves : horizontal) 4 E
Hypoplasia
(grooves : vertical) 5 F
(missing enamel) 6 G

Discolored enamel (not associated with opacity) 7 H

Other defects 8 J
Combination of defects Specify the code for each type in the same box

b. Number and demarcation of defects

Single 1 A

Multiple 2 B

Diffuse, fine white lines 3 C
Diffuse, patchy 4 D

c. Location of defects

No defect 0
Gingival one – half 1

Incisal one – half 2

Gingival and incisal halves 3

Occlusal 4
Cuspal 5

Whole surface 6

Other combinations 7

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