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DIAGNOSIS AND EXTRACTION OF IMPACTED SUPERNUMERARY TEETH IN THE MAXILLA WITH 3D DENTAL-CT

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±è¼ö°æ ( Kim Su-Kyoung ) - ÀüºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÀç°ï ( Kim Jae-Gon ) - ÀüºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
¹éº´ÁÖ ( Baik Byeong-Ju ) - ÀüºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
¾ç¿¬¹Ì ( Yang Yeon-Mi ) - ÀüºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±è¼ºÈñ ( Kim Sung-Hee ) - ÀüºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

°úÀ×Ä¡´Â ¹ý¶û±â(enamel organ)°¡ Ä¡¹èÇü¼ºÀ» Áö¼ÓÇϰųª °úµµÇÑ ¼¼Æ÷Áõ½ÄÀ» ÇÔÀ¸·Î½á ¹ß»ýÇÑ´Ù. °úÀ×Ä¡´Â »ó¾Ç Àü¹æºÎ¿¡¼­ Á¾Á¾ ¹ß°ßµÇ¸ç, À¯Ä¡¿­±â¿Í È¥ÇÕÄ¡¿­±â¿¡¼­ ´Ù¾çÇÑ ¹®Á¦¸¦ ¾ß±âÇÑ´Ù.

°úÀ×Ä¡´Â ÇüÅ¿¡ µû¶ó¼­ º¸ÃæÄ¡(supplemental tooth)¿Í ÈçÀûÄ¡(rudimental tooth)·Î ³ª´­ ¼ö ÀÖ´Ù. º¸ÃæÄ¡´Â Á¤»ó ÀýÄ¡¿Í Å©±â ¹× ÇüÅ°¡ À¯»çÇϳª, ÈçÀûÄ¡´Â ºñÁ¤»èÀûÀÎ ÇüÅÂ¿Í ÀÛÀº Å©±â¸¦ °®°í ÀÖ´Ù. º¸ÃæÄ¡´Â ¿µ±¸ ÃøÀýÄ¡ ºÎÀ§¿¡¼­ È£¹ßÇϸç Á¤»ó ÀüÄ¡¿Í À¯»çÇÑ ÇüÅÂ¿Í Å©±â¸¦ °®°í ÀÖÀ¸¹Ç·Î, ¹ßÄ¡½Ã ÁÖÀǸ¦ ±â¿ï¿©¾ß ÇÑ´Ù. º» 3Áõ·Ê´Â »ó¾Ç Àü¹æºÎ¿¡ Á¤»ó ÀüÄ¡ ÇüÅÂÀÇ °úÀ×Ä¡¸¦ °®´Â Áõ·ÊµéÀÌ´Ù. ¸ðµç Áõ·Ê¿¡¼­, Ä¡±Ù´Ü, ±³ÇÕ, Æijë¶ó¸¶ ¹æ»ç¼± »çÁø µîÀÇ ±âÁ¸ ¹æ»ç¼± »çÁø ÃÔ¿µ ¿Ü¿¡ 3Dimensional Dental-Computed Tomography(3D Dental-CT)¸¦ ÃÔ¿µÇÏ¿© Áø´ÜÇÏ¿´´Ù.

±âÁ¸ ÀÏ¹Ý ¹æ»ç¼± »çÁøµé(conventional radiographs)°ú 3D Dental-CT¸¦ ºñ±³½Ã, ÀÏ¹Ý ¹æ»ç¼± »çÁøµéÀº 2Â÷¿øÀûÀÎ ¿µ»ó¸¸À» Á¦°øÇÏ¿© »óÀÇ Çؼ®¿¡ À־ ¼úÀÚÀÇ ÁÖ°üÀÌ °³ÀԵǴ ÇÑ°è°¡ ÀÖ´Ù. ¹Ý¸é 3D Dental-CT´Â °úÀ×Ä¡ÀÇ Á¤È®ÇÑ À§Ä¡¿Í ÇüÅ¿¡ ´ëÇÑ °´°üÀûÀÎ Á¤º¸¸¦ Á¦°øÇϸç, Á» ´õ º¸Á¸ÀûÀÎ ¼ö¼úÀ» ½ÃÇàÇÏ°í, ¼ö¼ú ½Ã°£°ú ½ºÆ®·¹½º¸¦ ÁÙÀ̴µ¥ À¯¿ëÇÏ´Ù. ±×·¯¹Ç·Î ÀÏ¹Ý ¹æ»ç¼± »çÁø ÃÔ¿µ ÈÄ °úÀ×Ä¡ÀÇ À§Ä¡°¡ ºÒºÐ¸íÇÏ°í ÀÎÁ¢ ¿µ±¸Ä¡ÀÇ ¼Õ»óÀÌ ÀǽɵǴ °æ¿ì 3D Dental-CT¸¦ ÀÌ¿ëÇÑ Áø´ÜÀÌ °í·ÁµÈ´Ù.

Supernumerary teeth are teeth which result from the continued budding of the enamel organ of the preceding tooth or from excessive proliferation of cells. They are most often found in the maxillary anterior region. And they can be responsible for a variey of irregularities in the primary and transitional dentition.

There are two morphological types of supernumerary teeth: supplemental and rudimentary. Supplemental teeth have normal shape and size. In contrast, rudimental teeth have abnormal shape and smaller size. Supplemental supernumerary teeth are most common in permanent lateral incisor area. Its extration must be decided more carefully with differential diagnosis between normal teeth, because it has nomal shape and size.

We reports 3 cases of the normal incisor shaped teeth in the maxillary anterior region.

In all cases, we used the 3D Dental-CT as well as the conventionl plain film such as periapical, occlusal, and panoramic ridiograph. Consequently, 3D Dental-CT was valualble to figure out the exact position and morphology of supernumerary teeth, to do more conservative surgery, and to reduce surgery stress and time.

Å°¿öµå

°úÀ×Ä¡;3D Dental-CT;º¸ÃæÄ¡
Supernumerary teeth;3 dimensional dental computed tomography;Supplemental teeth

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