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A STATISTICAL STUDY ON PREVALENCE OF DENTAL ANOMALIES

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Abstract

°á·Ð
1985³â 7¿ùºÎÅÍ 1987³â 6¿ù±îÁö ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº´¿ø ¼Ò¾ÆÄ¡°ú¿¡ ³»¿øÇÑ ¸¸ 0¼¼
¿¡¼­ 15¼¼ ÀÌÇÏÀÇ ³²ÀÚ 1,342¸í, ¿©ÀÚ 1,083¸í, ÃÑ 2,425¸íÀ» ´ë»óÀ¸·Î Ä¡·á ±â·ÏÁö¿Í ¹æ»ç¼±
»çÁøÀ» ÀÌ¿ëÇÏ¿© Ä¡¾ÆÀÇ ÀÌ»ó¹ß»ýÀ» Á¶»ç, À̸¦ ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. 2,425¸íÀÇ ÇÇ°ËÀÚÁß 474¸í(19.5%)ÀÌ Ä¡¾ÆÀÇ ÀÌ»ó¹ß»ýÀ» ³ªÅ¸³»¾úÀ¸¸ç, °¢ ÀÌ»ó¹ß»ýÀÇ ºó
µµ´Â °á¼ÕÄ¡ 5.8%, °úÀ×Ä¡ 8.2%, Ä¡¾ÆÁ¾ 0.4%, ¿Ö¼ÒÄ¡ 0.1%, peg lateralis 1.8%, À¯ÇÕ ¹× ½Ö
»ýÄ¡ 2.3%, talon cusp ¹× À̻󱳵θ¦ °®´Â Ä¡¾Æ 0.5%, Ä¡³»Ä¡ 0.2%, ¸¸°îÄ¡ 1.0%,
taurodontism 1.2%, ÀüÀ§Ä¡, ÀüµµÄ¡, ¼öÆòÄ¡°¡ °¢°¢ 0.1%, ¼±ÃµÄ¡ 0.2%, ¹ý¶ûÁúÇü¼ººÎÀüÁõ
0.2%ÀÇ ¹ß»ýºóµµ¸¦ ³ªÅ¸³»¾ú´Ù.
2. °¢ ÀÌ»ó¹ß»ý Áý´Ü°£ÀÇ »ó°ü °ü°è´Â ³²³à¿¡¼­ Â÷À̸¦ º¸¿´À¸¸ç, °úÀ×Ä¡¿Í °á¼ÕÄ¡»çÀÌ¿¡
ºñ±³Àû ³ôÀº ¿ª»ó°ü °ü°è¸¦ º¸¿´´Ù.
3. °úÀ×Ä¡´Â ³²¼º(p<0.001)¿¡¼­, Ä¡³»Ä¡ ¹× À̻󱳵θ¦ °®´Â Ä¡¾Æ´Â ¿©¼º(p<0.05)¿¡¼­ È£¹ß
ÇÏ¿´´Ù.
4. °á¼ÕÄ¡´Â ÇÏ¾Ç À¯ÃøÀýÄ¡¿Í ÇÏ¾Ç Á¦ 2¼Ò±¸Ä¡¿¡¼­ °¢°¢ ÃÖ´Ù ºóµµ¸¦ º¸¿´À¸¸ç, Á¡¤¿ìÃø°ú
»ó¡¤ÇϾǿ¡¼­ÀÇ À¯ÀÇÂ÷¸¦ º¸¿© ÇϾÇ(p<0.001)°ú ¿ìÃø(p<0.05)¿¡¼­ È£¹ßÇÏ¿´´Ù.
5. °úÀ×Ä¡´Â Á¤Áߺο¡ ¹ß»ýÇÏ´Â Á¤ÁßÄ¡, ÀüµµÀ§ÀÇ ¸ÍÃâ¾ç»ó°ú ¹Ì¸ÍÃâ »óÅ°¡ ´ëºÎºÐÀ̾úÀ¸
¸ç, »ó¾Ç¿¡¼­ È£¹ßÇÏ¿´À¸¸ç, Á¡¤¿ìÃøÀÇ À¯ÀÇÂ÷´Â ¾ø¾ú´Ù.
6. À¯Ä¡ À¯Çսà °è½Â ¿µ±¸Ä¡ÀÇ °á¼Õ ºóµµ´Â 38.6%, °è½Â ¿µ±¸Ä¡ÀÇ À¯ÇÕÀº 1.8%¸¦ ³ªÅ¸³»¾ú
À¸¸ç, ÇÏ¾Ç À¯ÃøÀýÄ¡¿Í À¯°ßÄ¡ÀÇ À¯ÇÕÀÌ ÃÖ´Ù ºóµµ¸¦ ³ªÅ¸³»¾ú´Ù.
#ÃÊ·Ï#
This study was designed to find out the prevalence of dental anomalies. The clinical
and roentgenogaphic examination was undertaken of 2,425 childrens at age from 0 to 15
years and statistical analysis was made. The results were as follows :
1. Among the examined patients, 474 patients(19.5%) showed dental anomalies. The
prevalences of individual dental anomalies were as follows ; congenitally missing teeth
5.8%, supernumerary teeth 8.2%, odontoma 0.4%, peg lateralis 1.8%, fused teeth 2.1%,
geminated teeth 0.2%, talon cusp 0.2%, dens evaginatus 0.3%, transposed teeth 0.1%,
invertedly positioned teeth 0.1%, horizontally positioned teeth 0.1%, natal teeth 0.2%,
amelogenesis imperfecta 0.2%.
2. Between the groups with individual dental anomalies, what showed significant
correlation was as follow ; Between congenitally missing teeth and supernumerary teeth
was relatively high negative correlation. And the correlation coefficencies between male
and female showed differences.
3. The sexual differences of the individual dental anomalies appeared in supernumerary
teeth, and talon cusp and dens evaginatus. While supernumerary teeth showed greater
rate of prevalence in male(p<0.001), talon cusp and dens evaginatus in female(p<0.05).
4. In congenitally missing teeth, the mandibular deciduous lateral incisor showed the
highest rate of the prevalence in deciduous dentition, while mandibular second premolar
in permanent dentition.
5. Most supernumerary teeth were mesiodens of median area in maxilla and showed no
statistical difference between right and left side. Generally, the eruption pattern of that
teeth was inverted position and unerupted state.
6. In the case with deciduous fused teeth, the prevalence of succeeding permanent
congenitally missing teeth 38.6%, while that of succeeding permanent fused teeth was
1.8%. And the highest rate of the prevalence appeared in fusion of mandibular deciduous
lateral incisor and canine.

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