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A COMPARATIVE STUDY OF REMINERALIZATION OF ARTIFICIAL CARIOUS ENAMEL LESIONS BY SEVERAL ORAL HYGIENE METHODS ; IN VIVO

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Abstract

°á·Ð
ÀúÀÚ´Â Ä¡ÁÖÁúȯÀ¸·Î ÀÎÇØ ¹ß°ÅµÈ Ä¡¾Æ¸¦ ´ë»óÀ¸·Î Hydroxyethylcell ulose°èÀÇ Àΰø¿ì½Ä
À» À¯¹ßÇÏ¿© ¹ý¶ûÁú ÀýÆíÀ» Á¦ÀÛÇÑ ´ÙÀ½ ÇϾÇÀÇ °¡Ã¶¼ºÀåÄ¡¿¡ ¸Å¸³ÇÑ ÈÄ 4¸íÀÇ ÇǽÇÇèÀÚ·Î
ÇÏ¿©±Ý 2ÁÖ°£ ÀåÂøÄÉÇÏ°í Ưº°È÷ Áö½ÃÇÑ ±¸°­À§»ý¹æ¹ýÀ» 2ÁÖ°£ ½ÃÇàÇϵµ·Ï ÇÏ¿© Àΰø¿ì½Äº´
¼Ò°¡ À缮ȸȭµÈ ¾ç»óÀ» Á¶Á÷ÇÐÀû ºÐ¼®°ú Electron micro-analysis¸¦ ÅëÇØ ºñ±³ÇÑ °á°ú ´Ù
À½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ÁÖ»çÀüÀÚÇö¹Ì°æÀ¸·Î Ç¥¸éº¯È­¸¦ °üÂûÇÑ °á°ú ¿ì½Äº´¼Ò¿¡ ºñÇØ À缮ȸȭº´¼Ò´Â Ç¥¸é´Ù°ø
¼ºÀÌ »ó´çÈ÷ °¨¼ÒµÇ¾ú°í, ¸Å²ô·´°í ±ÕÀÏÇÑ ±¸Á¶¸¦ º¸¿´À¸¸ç ÀÌ·¯ÇÑ ¾ç»óÀº 1±º¿¡ ºñÇØ 2, 3,
4±º¿¡¼­ ´õ¿í ¶Ñ·ÇÇÏ¿´´Ù.
2. Crossed-polar »óÅ¿¡¼­ Æí±¤Çö¹Ì°æÀ¸·Î °üÂûÇÑ °á°ú ¹ý¶ûÁú Ãʱâ¿ì½Äº´¼ÒÀÇ Æ¯Â¡ÀûÀÎ
¼Ò°ßÀΠǥÃþÇÏ Å»È¸Çö»óÀ» °üÂûÇÒ ¼ö ÀÖ¾ú°í, °ÇÀüÇ¥Ãþ°ú ¹ý¶ûÁúÀº À½¼ºº¹±¼ÀýÀ» ³ªÅ¸³»¾ú
°í, º´¼Ò º»Ã¼´Â ¾ç¼ºº¹±¼ÀýÀ» ³ªÅ¸³Â´Ù.
3. ¸ðµç À缮ȸȭº´¼Ò¿¡¼­ Ç¥ÃþÀÇ µÎ²²°¡ Áõ°¡ÇÏ¿´°í, º´¼ÒÀÇ ±íÀÌ°¡ °¨¼ÒÇÏ¿´´Ù. ÀÌ·¯ÇÑ
Çö»óÀº 1±º¿¡ ºñÇØ 2, 3, 4±º¿¡¼­ µÎµå·¯Áö°Ô °üÂûµÇ¾ú´Ù.
4. 1±º°ú 2±ºº´¼Ò´Â ¿¬¼ÓµÈ ¾ç»óÀ» º¸ÀÎ ¹Ý¸é, 3±º°ú 4±ºº´¼Ò´Â º´¼Òº»Ã¼»çÀÌ¿¡ Á¤»ó¹ý¶ûÁú
ÀÌ °³ÀçÇÏ´Â ºÒ¿¬¼Ó»óÀ» º¸¿´´Ù.
5. WDX¸¦ ÀÌ¿ëÇÏ¿© Ca, PÀÇ ³óµµºÐÆ÷¸¦ ÃøÁ¤ÇÑ °á°ú ¸ðµç ¿ì½Äº´¼Ò°¡ ¾à 80¥ìm ÁöÁ¡¿¡
¼­ ±¤¹° Áú¼Ò½ÇÀÌ ÃÖ´ëÄ¡¸¦ º¸¿´°í, Ca, º¸´Ù PÀÇ ¼Ò½ÇÀÌ ¸¹¾Ò´Ù.
6. WDXÀÇ °á°ú¸¦ Åä´ë·Î ¿ì½Äº´¼ÒÀÇ À缮ȸȭÀ²À» »êÃâÇÑ °á°ú 4±º>3±º>2±º>1±ºÀÇ ¼ø¼­¸¦ º¸¿´´Ù.
#ÃÊ·Ï#
With a view to evaluating the effect of topical fluoride application in vivo, enamel slabs
taken from artificial carious lesion produced by Hydroxyethylcellulose system were
mounted in acrylic mandibular removable appliances and worn by 4 male subjects for
two weeks. Control subjects brushed 4 times a day with non-fluoridated dentifrice.
Experimental subjects also brushed 4 time a day but wash MFP dentifrice(G2), plus
0.05% NaF mouthrinsing(G3) or with MFP dentifrice plus 0.05% NaF mouthrinsing.
After performing different oral hygiene regimen, surface morphology and histological
profile in depth along with Ca, P content in layers were studies using SEM, polarizing
light microscope, EPMA, EDX and WDX.
The results were as follows;
1. Remineralized lesion in all groups showed smoother and less porous surface than
original carious enamel lesion.
2. Under polarizing light microscope, artificial carious lesions showed typical subsurface
demineralization ; The lesion body showed positive birefringence, and the inner sound
enamel and intact surface layer showed negative birefringence. When compared to the
original lesions, remineralized artificial carious lesion showed decreased lesion depth with
increased thickness of intact surface. This features were more distinct in the case of
topical fluoride application groups(group 2, 3, 4). The body of remineralized lesion in
group 1, 2 revealed continuous pattern, whereas group 3 and 4 showed interrupted
charicter.
3. From Ca £¦ P profile analyzed by WDX, maximum mineral loss of most lesions was
shown to be detected at around the area of 80¥ìm from surface roughly. The intergroup
rank of remineralizing rate based on WDX data in descending order was group 4, 3, 2
and 1.

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