Page 81 - Ebook_V01

©Ð¹Ñ¹¨Ö§ä´ŒÁÕ¡ÒûÃѺ»Ãا´Ñª¹Õ DDE Index ãËÁ‹ ÍÕ¡ÊͧÃٻẺ â´Â์¹·ÕèÇѵ¶Ø»ÃÐʧ¤
[22]
é
¡ÒÃ㪌 ´Ñ§µÒÃÒ§·Õè 2

µÒÃÒ§·Õè 2 Modified DDE index for use in screening survey and general purpose

epidemiological studies [22]

screening survey [22] general purpose epidemiological studies [22]

Code Code

Normal 0 Normal 0

Demarcated opacity 1 Demarcated opacities

Diffuse opacity 2 white / cream 1

Hypoplasia 3 yellow / brown 2

Other defect 4 Diffuse opacities

Combination Diffuse – lines 3

Demarcated and diffuse 5 Diffuse – patchy 4

Demarcated and hypoplasia 6 Diffuse – confluent 5

Diffuse and hypoplasia 7 Confluent / patchy + staining 6

All three defects 8 + loss of enamel

Hypoplasia

Pits 7

Missing enamel 8

µÒÃÒ§·Õè 3 ¡ÒÃŧÃËÑÊ Extent of defect Any other defects 9

Extent Code Combination

Normal 0 Demarcated and diffuse A

<1/3 1 Demarcated and hypoplasia B

1/3 - 2/3 2 Diffuse and hypoplasia C

at least 2/3 3 All three defects D

73