Page 41 - Ebook_V01

4. Nyvad caries diagnosis [6, 7]

[7]
¾Ñ²¹Ò¢Öé¹â´Â Nyvad ã¹»‚ 1999 ÁÕËÅÑ¡¡ÒÃà´ÕÂǡѺ´Ñª¹Õ Dental caries severity
classification scale (D1-D4) «Öè§à»š¹¡ÒûÃÐàÁÔ¹ÃͼØÃÐÂÐàÃÔèÁáá «Öè§ÂѧäÁ‹»ÃÒ¡¯ÍÒ¡ÒÃ

áÅÐ ÊÒÁÒöÁÕ¡Ãкǹ¡Òä׹¡ÅѺá˸ҵØ໚¹¿˜¹»¡µÔä´Œ â´Â·Õè ´Ñª¹Õ¹ÕéÁÕ¡ÒÃÃкؤÇÒÁᵡµ‹Ò§

ÃÐËÇ‹Ò§ ¿˜¹¼ØẺÅØ¡ÅÒÁ (Active caries) áÅп˜¹¼ØẺËÂØ´ÂÑé§ (Inactive caries) ·Ñé§ÃͼØ

ẺÁÕÃÙ (Cavitated caries) áÅÐÃͼØäÁ‹ÁÕÃÙ (Non-cavitated caries)

´Ñª¹Õ¹Õé䴌ẋ§à»š¹ 3 ¡ÅØ‹ÁãËÞ‹æ 䴌ᡋ ¡ÅØ‹Á¿˜¹»¡µÔ ¡ÅØ‹Á¿˜¹·ÕèÁÕÃÍÂâä áÅСÅØ‹Á¿˜¹·Õèä´ŒÃѺ

Ô
¡ÒÃÍØ´áÅŒÇ «Öè§ã¹¡ÅØ‹Á¿˜¹·ÕèÁÕÃÍÂâäáÅп˜¹·Õèä´ŒÃѺ¡ÒÃÍØ´áÅŒÇᵋÁÕÃͼØà¾èÁ ¨Ðẋ§Â‹Í ໚¹
ÃͼØẺÅØ¡ÅÒÁ (Active caries) áÅÐÃͼØẺËÂØ´ÂÑé§ (Inactive caries) ¡ÒûÃÐàÁÔ¹ÃдѺ

¡ÒÃÇÔ¹Ô¨©Ñµ‹Ò§æ ¨ÐÁռŵ‹Í¡ÒÃÇҧἹ¡ÒÃÃÑ¡ÉÒµ‹Ò§æ¡Ñ¹ ÃͼØẺÅØ¡ÅÒÁ·ÕèäÁ‹ÁÕÃÙ (Active

non-cavitated lesions) ÁÕ¤ÇÒÁàÊÕè§㹡ÒÃà¡Ô´ÃͼØẺÁÕÃÙ (Cavitated caries) ÁÒ¡¡Ç‹Ò

ÃͼØẺËÂØ´ÂÑ駷ÕèäÁ‹ÁÕÃÙ (Inactive non-cavitated lesions) «Ö觵ŒÍ§ãËŒ¤Óá¹Ð¹Óã¹ ¡ÒôÙáÅ

ÃÑ¡ÉÒÁÒ¡¡Ç‹Ò

Õ
µÒÃÒ§·è 5 ࡳ±ÊÓËÃѺ¡ÒõÃǨ¿˜¹ ¢Í§ Nyvad

ÃËÑÊ à¡³±ÊÓËÃѺ¡ÒõÃǨ¿˜¹

0 Sound ¿˜¹»¡µÔ

1 Active caries ¼ÔǢͧà¤Å×ͺ¿˜¹ÁÕÊÕ¢ÒÇ ËÃ×ÍàËÅ×ͧ ÍÒ¨¾ºÅѡɳТÃØ¢ÃÐàÁ×èÍ㪌
(Intact surface) probe ÅÒ¡ äÁ‹¾º¡ÒÃÊÙÞàÊÕ¢ͧà¤Å×ͺ¿˜¹

2 Active caries ¼ÔǢͧà¤Å×ͺ¿˜¹ÁÕÊÕ¢ÒÇ ËÃ×ÍàËÅ×ͧ ¾º¤ÇÒÁ¼Ô´»¡µÔ·Õè¼ÔÇà¤Å×ͺ¿˜¹à©¾ÒÐ
(Surface µÓá˹‹§ ÍÒ¨ÁÕÃÙ¼ØàÅç¡æ㹪Ñé¹à¤Å×ͺ¿˜¹ à¢Õ贌Ǡexplorer äÁ‹¹ÔèÁ

discontinuity)

3 Active caries ¾ºÃͼØ໚¹ÃÙ㹪Ñé¹à¤Å×ͺ¿˜¹ ËÃ×Í ªÑé¹à¹×éÍ¿˜¹ àËç¹ä´Œ´ŒÇµÒà»Å‹Ò à¢Õè¹ÔèÁ
(Cavity) ÍÒ¨·ÐÅØËÃ×ÍäÁ‹·ÐÅØâ¾Ã§»ÃÐÊÒ·¿˜¹

34