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SCINTIGRAPHIC AND RADIOGRAPHIC STUDY OF THE EXPERIMENTAL PERIAPICAL LESIONS

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Abstract

ÀúÀÚ´Â ¹æ»ç¼ºÇÙÁ¾¿¡ ÀÇÇÑ °ñÁֻ簡 ¹æ»ç¼±»çÁøº¸´Ù Ä¡±Ù´Üº´¼Ò¸¦ Á¶±â¿¡ ¹ß°ßÇس¾¼ö ÀÖ
´Â°¡¸¦ ±Ô¸íÇÏ°íÀÚ ¿©¼¸¸¶¸®ÀÇ °³¿¡¼­ Ä¡±Ù´Üº´¼Ò¸¦ ÀÎÀ§ÀûÀ¸·Î À¯¹ß½ÃÄÑ 99m-Tc-MDP¸¦
ÀÌ¿ëÇÑ °ñÁÖ»ç¿Í Ä¡±Ù´Ü¹æ»ç¼±»çÁøÀ» ÃÔ¿µÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. °ñÁÖ»ç½Ã¿¡´Â ½ÇÇèºÎÀ§¿Í ´ëÁ¶
ºÎÀ§ÀÇ 99m-Tc-MDP Èí¼ö¸¦ Á¤·®ÀûÀ¸·Î ÃøÁ¤ÇÏ¿© ºñ±³ÇÏ¿´À¸¸ç Ä¡±Ù´Ü ¹æ»ç¼±»çÁøÀÇ ÆÇ
µ¶Àº 3ÀÎÀÇ Ä¡°ú¹æ»ç¼± Àü°øÀǵéÀÌ ÇÕµ¿Æò°¡ÇÏ¿´´ø ¹Ù ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. °ñÁÖ»ç½Ã 1ÁÖÈĺÎÅÍ ¹æ»ç¼ºÈ°¼ºµµ°¡ Áõ°¡ÇÏ¿´À¸³ª ÇѸ¶¸®ÀÇ ½ÇÇ赿¹°¿¡¼­´Â 2ÁÖÈĺÎÅÍ
¹æ»ç¼º È°¼ºµµ°¡ Áõ°¡ÇÏ¿´´Ù.
2. ÁÖ°£º° ¹æ»ç¼ºÈ°¼ºµµÀÇ Áõ°¡´Â ½ÇÇè´çÀÏ°ú 1ÁÖ»çÀÌ ¹× 3ÁÖ¿Í 4ÁÖ»çÀÌ¿¡¼­ Å©°Ô ³ªÅ¸³µ
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3. ¹æ»ç¼±ÇÐÀû ¼Ò°ßÀ¸·Î´Â 3ÁÖÈĺÎÅÍ °æ¹ÌÇÑ º¯È­°¡ ÀÎÁ¤µÇ±â ½ÃÀÛÇÏ¿© 4ÁÖÈĺÎÅÍ´Â Àüü
ÀûÀ¸·Î Ä¡±Ù´ÜÀÇ º¯È­¸¦ º¼ ¼ö ÀÖ¾ú´Ù.
4. Á¶Á÷ÇÐÀû¼Ò°ß¿¡¼­ 1ÁÖÈĺÎÅÍ Ç÷°üÀÇ Áõ½Ä, ¸¸¼º¿°Áõ¼¼Æ÷ÀÇ Ä§À± ¹× Ä¡Á¶°ñÀÇ Èí¼ö»óÀ»
º¸¿´À¸¸ç 3ÁÖÈÄ¿¡´Â Á¶°ñ¼¼Æ÷ÀÇ Çü¼ºÀ» °üÂûÇÒ ¼ö ÀÖ¾ú´Ù.
#ÃÊ·Ï#
The purpose of this study was to clarify that scintigram was a more effective method
than radiogram in the early detection of periapical lesion. Periapical lesions were
produced artificially by the opening of the pulp chambers of the lower right 3rd and 4th
premolars in 6 dogs. The serial bone scintigrams using 99m-Tc-MDP and periapical
radiograms were taken weekly. The uptake counts of the 99-Tc-MDP in the
experimental side were compared with those in the control side. The periapical
radiograms were interpreted with the joint evaluation by three dental radiologists.
The following results were obtained ;
1. The radioactivity in the experimental side was increased at the 1st week except
one animal in which the radioactivity was increased at the 2nd week.
2. It was observed that increasing amount of radioactivity per week was prominent
from the 1st day of experiment to the 1st week, and the 3rd week to the 4th week.
3. The radiographic evidence of the periapical lesions was observed at the 3rd week
and became more apparent at the 4th week.
4. Histologically, proliferation of blood vessels and infiltration of chronic inflammatory
cells were observed at the 1 st week and osteoblasts were found after the 3rd week.

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