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THE EXPERIMENTAL STUDY ON HEALING PROCESS OF XENOGRAFT IN THE CRANIUM OF RAT

Á¶¿ë¼®, ±è°æ¿ø,
¼Ò¼Ó »ó¼¼Á¤º¸
Á¶¿ë¼® (  ) - Chungbuk National University
±è°æ¿ø (  ) - Chungbuk National University

Abstract

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3. 4ÁÖ ¹× 8ÁÖ° ¿¡´Â ½ÇÇ豺¿¡¼­ º¸´Ù ¸¹Àº ÀÌÁ¾°ñÀÌ Èí¼öµÇ°í ½Å»ý°ñÀÌ Çü¼ºµÇ°í ¼®È¸
È­µÇ´Â ¼Ò°ßÀ» º¸¿´´Ù.
4. 16ÁÖ°¿¡´Â ´ëÁ¶±ºÀÇ °æ¿ì ÀϺÎÀÇ °ñÁÖ°¡ Çü¼ºµÇ¾úÀ¸³ª ¿ÏÀüÈ÷ °á¼ÕºÎ¸¦ ȸº¹ÇÏÁö ¸ø
ÇÏ¿´À¸¸ç ½ÇÇ豺¿¡¼­´Â ÀÌ ½Ä°ñÀÇ Èí¼ö°¡ ÁøÇàµÇ°í º¸´Ù ¸¹Àº ½Å»ý°ñÀÇ Çü¼ºÀÌ °üÂûµÇ¾ú´Ù.
±×·¯³ª Áß¾ÓºÎÀ§ÀÇ ÀÌÁ¾°ñÀº ¿©ÀüÈ÷ Èí¼öµÇÁö ¾Ê°í ÀÌ½Ä ÇÑ ±×´ë·Î ³²¾ÆÀÖ´Â ¼Ò°ßÀ̾ú´Ù.
5. ÀÌ»óÀÇ °á°ú·Î ÀÌ ½ÇÇè¿¡ »ç¿ëµÈ ±³¿øÁú ±âÃʼº ÀÌÁ¾°ñÀº °ñÀ¯µµ ´É·ÂÀº ¾ø¾úÀ¸³ª °ñ
Àüµµ ´É·ÂÀ» °®°í ÀÖ´Â °ÍÀ¸·Î º¸ÀÌ¸ç ºü¸¥ °ñ°³Á¶°¡ ÇÊ¿äÄ¡ ¾ÊÀº °ñ°á¼ÕºÎÀÇ ¼öº¹Àç·Î »ç
¿ëÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î »ç·áµÇ¾ú´Ù.

The purpose of this investigation was to evaluate the acceptability of the
collagen-based xenograft(Laddec).
Full thickness bone defects were prepared in the calvaria of the rats. In the
experimental group the bone defects were filled with a kind of collagen based xenograft.
And bone defects, which left without filling, were used as control groups. Sequential
sacrifice was performed at the 1st, 2nd, 4th, 8th, and 16th weeks of experiment.
1. At the 1st week of experiment, infiltration of chronic inflammatory cell was
observed in all groups. In the experimental group, resorption of the xenograft was
initiated.
2. At the 2nd week of experiment, infiltration of chronic inflammatory cells was
decreased in all groups. In the experimental group, active resorption of xenograft and
new bone formation from the periphery of the xenograft was observed.
3. At the 4th and 8th weeks of experiment, more resorption of the xenogrft and new
bone formation with calcification was observed in the experimental group.
4. At the 16th week of experiment, small bone trabecula was formed partially in the
control group but that couldn't fill the whole bone defect. In the experimental group,
more advanced resorption of xenograft and more new bone formation was observed.
However mid portion of the xenograft was still remained without resorption.
5. From this experiment, we concluded that the collagen-based xenograft had some
osteoconductive but no osteoinductive property. So the xenograft would be used for the
bone defect filling material where rapid bone remodeling is not required.

Å°¿öµå

collagen-based xenograft;

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