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A COMPARATIVE STUDY OF PRESERVING ABILITY OF HUMAN PERIODONTAL LIGAMENT CELLS STORED IN DIFFERENT STORAGE MEDIA

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Abstract

Ä¡¾ÆÅ»±¸ ¹ß»ý½Ã »ç°í ÇöÀå¿¡¼­ ½±°Ô ±¸ÇÒ ¼ö ÀÖ´Â ÀúÀå¿ë¾×À» ÀÌ¿ëÇÏ¿© Ä¡ÁÖÀδ뼼Æ÷ÀÇ »ýÁ¸À²À» ºñ±³Çغ¸°íÀÚ Ä¡ÁÖÀδ뼼Æ÷¸¦ 10£¥ FBSÇÔÀ¯ ¥á-MEM¿¡¼­ ¹è¾çÇÑ ÈÄ ¥á-MEM¿¡¼­ ÀúÀåÇÑ ±ºÀ» ´ëÁ¶±ºÀ¸·Î ÇÏ°í µ¿ÀÏÇÑ Á¶°ÇÇÏ¿¡¼­ Àú¿Â»ì±ÕµÈ ¿ìÀ¯±º, ¸ê±ÕµÈ »ý¸®Àû ½Ä¿°¼ö±º, ºñÀڱؼº Ÿ¾×±º, °ÇÁ¶µÈ »óÅ·Π¹æÄ¡ÇÑ ±ºÀ» ½ÇÇ豺À¸·Î ÇÏ¿© 25¡É ½Ç¿Â¿¡¼­ ¼¼Æ÷ ¹è¾ç 30,60,90,120,180ºÐ ÈÄ¿¡ °¢ ±º¿¡ ´ëÇØ MTT assay¸¦ ½ÃÇàÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. °¢ Á¶»ç½ÃÁ¡¿¡¼­ ½ÇÇ豺°£ÀÇ ºñ±³¿¡¼­´Â ¸ðµÎ À¯ÀǼºÀÖ´Â Â÷À̸¦ º¸¿´À¸¸ç Àú¿Â»ì±ÕµÈ ¿ìÀ¯±º¿¡¼­ Ä¡ÁÖÀδ뼼Æ÷ÀÇ »ýÁ¸À²ÀÌ °¡Àå ³ô¾Ò°í, ¸ê±ÕµÈ »ý¸®Àû ½Ä¿°¼ö±º, ºñÀڱؼº Ÿ¾×±º, °ÇÁ¶µÈ »óÅ·Π¹æÄ¡ÇÑ ±º ¼øÀ¸·Î Á¡Â÷ °¨¼ÒÇÏ¿´´Ù(P<0.05).
2. °¢ ½ÇÇ豺³»¿¡¼­ Á¶»ç½ÃÁ¡°£ÀÇ ºñ±³¿¡¼­´Â Ä¡ÁØÀδ뼼Æ÷ÀÇ »ýÁ¸À²ÀÌ ½Ã°£ÀÌ °æ°úÇÔ¿¡ µû¶ó À¯ÀǼºÀÖ°Ô °¨¼ÒÇÏ¿´À¸³ª(p<0.05), Àú¿Â»ì±ÕµÈ ¿ìÀ¯±º¿¡¼­ 90- l20ºÐ °æ°ú »çÀÌ, ¸ê±ÕµÈ »ý¸®Àû ½Ä¿°¼ø±º¿¡¼­ 60-90ºÐ°ú 120-180ºÐ °æ°ú »çÀÌ¿¡¼­´Â À¯ÀǼºÀÖ´Â Â÷ÀÌ´Â ¾ø¾ú´Ù(P>0.05).
ÀÌ»óÀÇ °á·ÐÀ» Á¾ÇÕÇغ¼ ¶§ ¿Ü»óÀ¸·Î ÀÎÇÑ Ä¡¾ÆÅ»±¸ ¹ß»ý½Ã ÀúÀå¿ë¾×À¸·Î HBSS°¡ ÃßõµÇ°í ÀÖÀ¸³ª »ç°í ÇöÀå¿¡¼­ ½±°Ô ±¸ÇÒ ¼ö ÀÖ°í Ä¡ÁÖÀδ뼼Æ÷ÀÇ »ýÈ°·Â º¸Á¸¿¡µµ À¯¸®ÇÑ Àú¿Â»ì±ÕµÈ ¿ìÀ¯¿¡ Å»±¸µÈ Ä¡¾Æ¸¦ ´ã°¡¿Àµµ·Ï ÃßõÇÒ ¼ö ÀÖ°Ú´Ù.

Preservation of the remaining periodontal ligament cells on an avulsed tooth is very important to the successful outcome of replantation. HESS is recommended as the most suitable storage medi¡©um for the avulsed tooth that cannot be replanted immediately. But their availability near the site of an accident is doubtful.
The purpose of this in vitro study was to compare periodontal ligament cells stored in different stor¡©age media obtained easily on the spot. Human periodontal ligament cells were collected from the pre¡©molar teeth extracted for orthodontic treatment. Cells were cultured in a-MEM culture medium con¡©taining 20% FBS, at 371C 100% humidity, in a 5% C02 incubator. Cells were cultured in 96 well culture plate, 5 x l04cells per well with a and incubated for 24 hours. After discarding the medi¡©um, those cells were cultured in a-MEM contained with 10% FBS, pasteurized milk, sterilized saline, unstimulated saliva and bench-dried state at 25C room temperature for 30, 60, 90, 120, 180 min¡©utes respectively. And then each group was measured using MTT assay.
The results were as follows.
1. Between the group of each time, there was statistically significant difference. Periodontal lig¡©ament cells viability was highest in pasteurized milk and was reduced stepwisely in sterilized saline, unstimulated saliva and bench-dried state (p<0.05).
2. between the time of each group, there was statistically significant difference (p(0.05) but was no statistically significant difference at 90 - 120 minutes in pasteurized milk and at 60 - 90 minutes and 120 - 180 minutes in sterilized saline(p)0.05).
In conclusion, HBSS as storage medium of an avulsed tooth is not practical on the spot. Insteadily pasteurized milk can be recommended to maintain the periodontal ligament cells viability.

Å°¿öµå

ÀúÀå¿ë¾×;Ä¡ÁÖÀδ뼼Æ÷ »ýÁ¸·Â;MTT assay;MTT assay;periodontal ligament cell viability;storage media.

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