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Experimental Study On The Tooth Root Resorption For Digital Radiography

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Abstract

ÀΰøÀûÀ¸·Î Ä¡±ÙÈí¼ö¸¦ °¢°¢ Ä¡±Ù÷ºÎ(Á¦ 2¼Ò±¸Ä¡), ±Ù½É¸éÀÇ Áß°£ºÎ(Á¦ 1´ë±¸Ä¡ ±Ù½ÉÄ¡
±Ù), ¼³Ãø¸é Áß°£ºÎ(Á¦ 1´ë±¸Ä¡ ¿ø½ÉÄ¡±Ù)¿¡ Á¡Á¡ Å©°Ô Çü¼ºÇÏ¿© À̸¦ µðÁöÅ»¿µ»ó ½Ã½ºÅÛÀ»
ÀÌ¿ëÇÏ¿©, µ¿ÀÏÇÑ ÃÔ¿µÁ¶°ÇÀ¸·Î Ç¥ÁØÈ­µÈ ±¸³» ¹æ»ç¼± »çÁøÀ» ÀÌ¿ëÇÏ¿© °¢°¢ ºñ±³ÇÏ°íÀÚÇÏ
´Â ¹æ»ç¼± »çÁøµé°£ÀÇ ´ëÁ¶µµº¸Á¤À» ½ÃÇàÇÑ ÈÄ Ä¡±ÙÈí¼ö¿¡ ´ëÇؼ­ Á¤·®ÀûÀ¸·Î Æò°¡ÇÏ¿© º»
¿¬±¸¸¦ ½ÃÇàÇÑ °á°ú ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ±âÁØ Çʸ§¿¡ ´ëÇÑ ´ëÁ¶µµ º¸Á¤ °á°ú °¢ ¹æ»ç¼± »çÁøµéÀÇ ´ëÁ¶µµ´Â °¢ Çȼ¿¿¡¼­ Æò±Õ 1
´Ü°è(gray scale)ÀÇ Â÷À̸¦ º¸¿´´Ù.
2. ¹æ»ç¼± »çÁøÀÇ À°¾ÈÀû Æò°¡¿¡¼­ Á¦ 1¼Ò±¸Ä¡, Á¦ 1´ë±¸Ä¡ ±Ù½É¸éÀÇ Áß°£ºÎ, Á¦ 1´ë±¸Ä¡
¼³¸é Áß°£ºÎ¿¡ Çü¼ºµÈ Á÷°æ 0.55§®, 0.85§®, 1.20§®ÀÇ Àΰø Ä¡±ÙÈí¼ö¸¦ À°¾ÈÀûÀ¸·Î Æò°¡Çغ»
°á°ú Å©±â°¡ Ä¿Áü¿¡ µû¸¥ Å©±âÀÇ º¯È­¸¦ ÀÎÁ¤ÇÒ ¼ö ÀÖ¾ú´Ù.
3. È÷½ºÅä±×·¥ ºÐ¼®¿¡¼­ Á¦ 1¼Ò±¸Ä¡, Á¦ 1´ë±¸Ä¡ ±Ù½É¸é Áß°£ºÎÀÇ Á÷°æ 0.55§®, 0.85§®,
1.20§® Àΰø Ä¡±Ù Èí¼ö´Â °¢°¢ 5°³, 6°³, 7°³ Çȼ¿ÀÇ ÈæÈ­µµ °¨¼Ò¿Í 2°³, 4°³, 5°³ Çȼ¿ÀÇ Èæ
È­µµ °¨¼Ò¸¦ º¸¿© Ä¡±Ù Èí¼öÀÇ Å©±âº¯È­¸¦ ÀÎÁ¤ ÇÒ ¼ö ÀÖ¾ú´Ù.
4. È÷½ºÅä±×·¥ ºÐ¼®¿¡¼­ 1´ë±¸Ä¡ ¼³¸é Áß°£ºÎ´Â Á÷°æ 0.85§®, 1.20§®ÀÇ ÀΰøÄ¡±ÙÈí¼ö¿¡¼­
°¢°¢ 3°³, 6°³ Çȼ¿¿¡¼­ ÈæÈ­µµ °¨¼Ò¸¦ º¸¿© Ä¡±Ù Èí¼öÀÇ Å©±â º¯È­¸¦ ÀÎÁ¤ÇÒ ¼ö ÀÖ¾ú´Ù
ÀÌ»ó°ú °°Àº ¿¬±¸°á°ú¸¦ ºÐ¼®Çغ» ¹Ù ÇâÈÄ ¹æ»ç¼± »çÁø ÃÔ¿µÀÇ ±âÇÏÇÐÀû Ç¥ÁØÈ­¿Í ´ëÁ¶µµ
º¸Á¤ÀÌ ¼±ÇàµÈ ÀÏ¹Ý ¹æ»ç¼± »çÁøÀ» µðÁöÅ» °øÁ¦¼úÀ» ÀÌ¿ëÇÏ¿© ÀǵµÀûÀÎ Ä¡¾ÆÀ̽ļú
(intentional replantation)À̳ª ÀÚ°¡Ä¡¾Æ ÀüÀ̼ú(autogenous tooth transplantation), Ä¡¾ÆÀÇ
¿Ü»óº´·Â, ±³Á¤·Â¿¡ ÀÇÇÑ Ä¡±ÙÀÇ ¿Ü, ³»Èí¼öÀÇ ÀÛÀº º¯È­¸¦ Á¶±â¿¡ Á¤·®ÀûÀ¸·Î Æò°¡ÇÒ ¼ö ÀÖ
À¸¸®¶ó »ç·áµÈ´Ù.
#ÃÊ·Ï#
The purpose of this study was to quantitatively evaluated experimental tooth root
resorption for digital radiography
For this study, experimentally three root sites were used, and radiograms were taken
with standardized apparatus.
Digital Imaging system were consisted of NEC PC-9801(computer),
TRINITRON(monitor), SONY XC-711 CCD camera. The display monitor had a
resolution of 512¡¿512 pixels.
The obtained results were as follows:
1. lift the difference of the four X-ray film of the contrast correction, the contrast
difference was one gray scale variation at mean value.
2. Viewing of the view box of the periapical radiographs, experimental tooth root
resorption of the periapical area of the first premolar, middle of menial surface of the
first molar mesial root, midge of lingual surface of the first molar distal roof were
recognized by increased diameter
3. On the analysis by histogram, the periapical area of the first premolar, the middle
of menial surface of the first molar mesial root were each recognized tooth root
resorption of the 5, 6, 7 pixel, 2, 4, 5 pixel by increased diameter.
4. Old the analysis by histogram, the middle of lingual surface of the first molar
distal root was each recognized tooth Toot resorption of the none, 3,6 pixel by
increased diameter.

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