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SEM/EDS Analysis of the Enamel in Mesiodens

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¿À³ª°æ ( Oh Na-Kyeong ) - °æºÏ´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
ÀÌÁ¦½Ä ( Lee Jae-Sik ) - °æºÏ´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
³²¼øÇö ( Nam Soon-Hyeun ) - °æºÏ´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
±ÇÅ¿± ( Kwon Tae-Yub ) - °æºÏ´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°ú»ýüÀç·áÇб³½Ç
±èÇöÁ¤ ( Kim Hyun-Jung ) - °æºÏ´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

ÀÌ ¿¬±¸´Â Á¤Áß °úÀ×Ä¡ ¹ý¶ûÁúÀÇ ±¸Á¶ÇÐÀû ¹× ÇüÅÂÇÐÀû Ư¡¿¡ ´ëÇÏ¿© ÁÖ»çÇü ÀüÀÚÇö¹Ì°æ(FE-SEM)°ú ¿¡³ÊÁö ºÐ»êÇü ºÐ±¤ºÐ¼®¹ý(EDS)À» ÀÌ¿ëÇÏ¿© °üÂûÇÏ°í ¿µ±¸ ÁßÀýÄ¡¿Í À¯ÁßÀýÄ¡ÀÇ ¹ý¶ûÁú ±¸Á¶ ¹× ÇüÅÂ¿Í Â÷ÀÌÁ¡¿¡ ´ëÇÏ¿© Æò°¡ÇÏ°íÀÚ ÇÏ¿´´Ù. 15°³ÀÇ Á¤Áß °úÀ×Ä¡, ¿µ±¸ ÁßÀýÄ¡¿Í À¯ÁßÀýÄ¡¸¦ ÀÌ¿ëÇÏ¿´À¸¸ç, ¹ý¶ûÁúÀÇ µÎ²²¿Í ¹ý¶û¼ÒÁÖ Á÷°æ¿¡ ´ëÇÏ¿© FE-SEMÀ» ÀÌ¿ëÇÏ¿© ÃøÁ¤¹× °üÂûÇÏ°í, ¼ººÐ ºÐ¼®À» À§ÇÏ¿© EDS¸¦ ÀÌ¿ëÇÏ¿´´Ù. ±× °á°ú ¹ý¶û¼ÒÁÖ µÎ²²ÀÇ °æ¿ì ¿µ±¸ ÁßÀýÄ¡, Á¤Áß °úÀ×Ä¡, À¯ÁßÀýÄ¡ ¼øÀ¸·Î ³ªÅ¸³µ´Ù. ¹ý¶û¼ÒÁÖÀÇ Á÷°æÀÇ °æ¿ì ¿µ±¸ÁßÀýÄ¡¿Í Á¤Áß °úÀ×Ä¡¿¡¼­´Â À¯ÀÇÇÒ ¸¸ÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸¸ç, À¯ÁßÀýÄ¡´Â µÎ ±×·ì¿¡ ºñÇؼ­ ÀÛ°Ô ³ªÅ¸³µ´Ù. ¼ººÐ ºÐ¼® ½Ã Ä®½·ÀÇ °æ¿ì ¿µ±¸ ÁßÀýÄ¡¿Í Á¤Áß °úÀ×Ä¡¿¡ À־ Åë°èÀû À¯ÀǼºÀÌ ¾ø¾úÀ¸¸ç, À¯ÁßÀýÄ¡´Â ÀÛ°Ô ³ªÅ¸³µ´Ù. Ca/P ratioÀÇ °æ¿ì Á¤Áß °úÀ×Ä¡¿Í ¿µ±¸ ÁßÀýÄ¡´Â ºñ½ÁÇÑ ¼öÄ¡¸¦ ³ªÅ¸³»¸ç Åë°èÀû À¯ÀǼºÀÌ ¾ø¾ú°í, À¯ÁßÀýÄ¡º¸´Ù´Â µÎ ±×·ì ¸ðµÎ ³ô°Ô ³ªÅ¸³µ´Ù. Ca/C ratioÀÇ °æ¿ì ¸¶Âù°¡Áö·Î Á¤Áß °úÀ×Ä¡¿Í ¿µ±¸ ÁßÀýÄ¡¿¡¼­ À¯ÁßÀýÄ¡º¸´Ù ³ô°Ô ³ªÅ¸³µ´Ù. À̸¦ ÅëÇÏ¿© Á¤Áß °úÀ×Ä¡ÀÇ ¹ý¶ûÁúƯ¼ºÀº À¯ÁßÀýÄ¡º¸´Ù´Â ¿µ±¸ ÁßÀýÄ¡¿Í ´õ À¯»çÇÔÀ» ¾Ë ¼ö ÀÖ°í, ÀÓ»óÀûÀ¸·Î Á¤Áß °úÀ×Ä¡ÀÇ È°¿ë ½Ã ¿µ±¸ ÁßÀýÄ¡¿Í ºñ½ÁÇÑ ¹ý¶ûÁú ¼ºÁúÀ» Áö´ÔÀ» À¯ÃßÇÒ ¼ö ÀÖ´Ù.

The aim of this study was to evaluate and compare the microstructural properties and mineralization quality of mesiodens with permanent and primary central incisors. Fifteen mesiodens, permanent and primary central incisors were collected. The enamel rod diameter and enamel thickness were observed and measured using field emission scanning electron microscope (FE-SEM). Chemical composition of the enamel was analyzed using energy dispersive X-ray spectrometer (EDS). The measurements were then assessed using the one-way ANOVA and Tukey test. There was no statistically significant difference in the enamel rod diameter between mesiodens and permanent central incisors. However, enamel rods of primary central incisors were smaller than remaining two groups. The thickness of enamel was thick in order of permanent central incisors, mesiodens, primary central incisors. In the composition analysis using EDS, there was no difference in the Ca/P ratio and Ca/C ratio between mesiodens and permanent central incisors, but small in primary central incisors. In conclusion, the microstructural properties of mesiodens were more similar to those of permanent central incisors compared to primary central incisors. Futher, the mineralization quality of mesiodens did not differ significantly from that of permanent central incisors.

Å°¿öµå

Mesiodens; Enamel; Field emission scanning electron microscope; Energy dispersive X-ray spectrometeract

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