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Effects of Indomethacin on the physiologic root resorption of deciduous teeth in dogs

Korean Journal of Orthodontics 2005³â 35±Ç 2È£ p.106 ~ 115
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Abstract

ÀÌ ¿¬±¸´Â Èí¼öÁßÀÎ À¯Ä¡¸¦ ´ë»óÀ¸·Î Àεµ¸ÞŸ½ÅÀÌ Ä¡±ÙÈí¼ö¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÏ°í, Ä¡±ÙÈí¼ö¿¡ °ü·ÃµÈ ÁÖÀ§ Á¶Á÷ÀÇ º¯È­¸¦ °üÂûÇϱâ À§ÇÏ¿©½ÃÇàµÇ¾ú´Ù. Àεµ¸ÞŸ½ÅÀºÆÄ°ñ¼¼Ç¥ÀÇ ¼ö¸¦ °¨¼Ò½ÃÅ°°í °ñÈí¼ö¸¦ °¨¼Ò½ÃÅ°¸ç, °ñÇü¼ºµµ °¨¼Ò½ÃÅ°´Â °ÍÀ¸·Î º¸°íµÇ¾î ¿ÔÀ¸³ª ÇüÅÂ¿Í ±â´ÉÀÌ À¯»çÇÏ´Ù´Â ÆÄÄ¡¼¼Æ÷¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ °üÇÑ ¿¬±¸´Â Èñ¼ÒÇÏ´Ù. »ýÈÄ 12-13ÁÖµÈ Àâ°ß 6¸¶¸®¸¦ Åë»óÀûÀ¸·Î º¹¿ë·®ÀÎ Àεµ¸ÞŸ½Å 2§·/§¸/day¸¦ 14ÀÏ°£ Åõ¿©ÇÑ ±º°ú °ú·®ÀÇ 8§·/§¸/day¸¦ 14ÀÏ°£ Åõ¿©ÇÑ ±º°ú ´ëÁ¶±ºÀ¸·Î ±¸ºÐÇÏ¿´À¸¸ç Èí¼öÁßÀÎ ÇÏ¾Ç ÀýÄ¡¸¦ ¿¬±¸´ë»óÀ¸·Î ÇÏ¿´´Ù. ¿¬±¸´ë»ó Ä¡¾Æ´Â 5§­ µÎ²²ÀÇ ÀýÆíÀ» ¸¸µé°í, H & E Áß¿°»ö. MassonÀÇ trichrome ¿°»öÀ» ½ÃÇàÇÏ°í ±¤ÇÐÇö¹Ì°æÀ¸·Î °Ë°æÇÏ¿´À¸¸ç,ÆÄÄ¡¼¼Æ÷ÀÇ ¼ö¿Í ÇÙÀÇ ¼ö¸¦ ºñ±³ÇÏ¿´´Ù. °üÂû °á°ú À¯Ä¡ Ä¡±Ù Èí¼ö Á¶Á÷Àº °ñ°³Á¶ ¼Ò°ß°ú ÇÔ²² ¿°Áõ ¼Ò°ß°ú À¯»çÇÑ ¼Ò°ßÀ» º¸¿´´Ù. Èí¼öÁßÀÎ À¯Ä¡ÀÇ Ä¡¼ö´Â Ä¡±ÙÈí¼öºÎÀ§¿¡ °¡±î¿î Á¶»ó¾Æ¼¼Æ÷ÃþÀº º¯¼ºÀÇ ¼Ò°ßÀ» º¸À̳ª ¸Ö¸® ¶³¾îÁø Ä¡¼ö´Â Á¤»óÀÎ ¼Ò°ßÀ»
º¸¿´À¸¸ç Àεµ¸ÞŸ½ÅÀÌ Åõ¿©µÈ ½ÇÇ豺¿¡¼­´Â ÆÄÄ¡¼¼Æ÷ÀÇ ¼öÀû °¨¼Ò¿Í ÇÙÀÇ ¼öÀû °¨¼Ò¸¦ ¹Ì¾àÇÏ°Ô ³ªÅ¸³Â´Ù. ±×·¯³ª Àεµ¸ÞŸ½ÅÀÌ Èí¼öÁßÀÎ Ä¡¾ÆÀÇ Ä¡¼ö¿¡ ¹ÌÄ¡´Â ¿µÇâÀº
°üÂûµÇÁö ¾Ê¾Ò´Ù. ÀÌ»óÀÇ °á°ú¿¡ ÀÇÇϸé Àεµ¸ÞŸ½ÅÀº ÆÄÄ¡¼¼Æ÷ÀÇ ¼öÀû °¨¼Ò¸¦ ¹Ì¾àÇÏ°Ô ÀÏÀ¸Å°¸ç, Àå±â°£ÀÇ Àεµ¸ÞŸ½Å Åõ¿©´Â À¯Ä¡ Ä¡±ÙÈí¼öÀÇ Áö¿¬À» ÃÊ·¡ÇÒ °¡´É¼ºÀÌ
ÀÖÀ½À» ½Ã»çÇÑ´Ù.

The study was aimed to invesigate the effects of indomethacin on physiologic
root resorption and to examine the dental pulp and tissue changes around the
resotbing teeth. 13-14 week old six mongrel dogs were divided into 3 groups: two
experimental groups administered indomethacin 2§·/§¸/day and 8§·/§¸/day orally
two times a day for 14 days respectively, and control group administered a
placebo. The deciduous incisors showing root resorption were selected, fixed for
24hrs in 10% formalin solution, demineralized in 10%EDTA solution, invested in
paraffin and sectioned in 5§­ thick sections. The preparations were staine with
H & E staining and Masson¡¯s trichrome staining and examined unger the light
microscope. Observation revealed that deciduous root resorbing tissue resembles
inflammatory tissue and accmpanies bone remodelling. The dental pulp was normal
except the area near root resorption, well organized columnar odontoblasts layer
under the predentin, and the odontoblasts near root resorption were cuboidal or
flat cells in the disrupted layer under the predentin. Indomethacin administered
group showed a partial decrease in the number of odontoclasts and nucleus. But
there was no sign of pulp change by indomethacin. These results suggest that
indomethacin inhibits recruitment of odontoclasts partially and that of
osteoclasts more, and so when it is administered for long periods, deciduous
root resorption can be delayed and eruption of the successor can be delayed for
a short period.

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Àεµ¸ÞŸ½Å;»ý¸®Àû Ä¡±Ù Èí¼ö;ÆÄÄ¡¼¼Æ÷;ÆÄ°ñ¼¼Æ÷;Indomethacin;Physiologic root resorption;Odontoclast;Osteoclast

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