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A STUDY ON THE SIZE OF THE PERMANENT TEETH

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Abstract

ÀüºÏ´ëÇб³¿¡ ÀçÇÐÁßÀÎ Çлý 800¸íÀ» ´ë»óÀ¸·Î ±¸°­ °Ë»ç¸¦ ½ÃÇàÇÏ¿© Á¤»ó±³ÇÕÀÚ·Î ÆǴܵǴ 86¸í(³²ÀÚ 43¸í, ¿©ÀÚ 43¸í, Æò±Õ³ªÀÌ 22.2¼¼)ÀÇ ¼®°í¸ðÇüÀ» äµæÇÏ¿© ºÐ¼®ÇÑ °á°ú ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. °èÃøÀÚ³» ¿ÀÂ÷´Â ¼ø(Çù)¼³ Ä¡°ü Á÷°æ¿¡¼­ »ó¾Ç ÃøÀýÄ¡°¡, ±Ù¿ø½É Ä¡°ü Á÷°æ¿¡¼­´Â »ó¾Ç Á¦1´ë±¸Ä¡, »ó¾Ç Á¦2´ë±¸Ä¡¿¡¼­ ´Ù¼Ò Å« °ªÀ» ³ªÅ¸³»¾ú´Ù. Æò±Õ °èÃø ¿ÀÂ÷´Â ¼ø(Çù)¼³ Ä¡°ü Á÷°æ ÃøÁ¤Àº 0.051mm, ±Ù¿ø½É Ä¡°ü Á÷°æ ÃøÁ¤Àº 0.083mm¿´´Ù.
2. Á¿ìÃø °èÃøÄ¡ °£ÀÇ Â÷ÀÌ´Â ¼ø(Çù)¼³ Ä¡°ü Á÷°æ¿¡¼­ Æò±Õ 0.030mm, ±Ù¿ø½É Ä¡°ü Á÷°æ¿¡¼­ Æò±Õ 0.037mm¸¦ º¸¿´À¸¸ç, Åë°èÇÐÀûÀ¸·Î Á¿ìÃø °èÃøÄ¡°£ÀÇ À¯ÀÇÇÑ Â÷ÀÌ´Â ¾ø¾ú´Ù.
3. ¿µ±¸Ä¡ÀÇ ´«(Çù)¼³ ¹× ±Ù¿ø½É Ä¡°ü Á÷°æÀº Àüü ¿µ±¸Ä¡¿¡¼­ ³²ÀÚ°¡ ¿©ÀÚº¸´Ù ÄÇ´Ù. Åë°èÇÐÀûÀ¸·Î À¯ÀǼºÀÌ ÀÖ´Â Ä¡¾Æ´Â ¼ø(Çù)¼³ Ä¡°ü Á÷°æ¿¡¼­ »ó¾Ç ÃøÀýÄ¡, »ó¾Ç °ßÄ¡, »ó¾Ç Á¦2¼Ò±¸Ä¡, »ó¾Ç Á¦1´ë±¸Ä¡, »ó¾Ç Á¦2´ë±¸Ä¡, ÇÏ¾Ç ÁßÀýÄ¡, ÇÏ¾Ç °ßÄ¡, ÇÏ¾Ç Á¦2¼Ò±¸Ä¡, ÇÏ¾Ç Á¦ 1´ë±¸Ä¡ µîÀ̾ú°í, ±Ù¿ø½É Ä¡°ü Á÷°æ¿¡¼­ »ó¾Ç ÁßÀýÄ¡, »ó¾Ç°ßÄ¡, ÇÏ¾Ç °ßÄ¡, ÇÏ¾Ç Á¦1´ë±¸Ä¡ µîÀ̾ú´Ù.
4. ³²³àÀÇ ¼ºÂ÷°¡ °¡Àå ÀÎÁ¤µÇ´Â Ä¡¾Æ´Â ¼ø(Çù)¼³ Ä¡°ü Á÷°æ¿¡¼­´Â »ó¾Ç ÃøÀýÄ¡, ±Ù¿ø½É Ä¡°ü Á÷°æ¿¡¼­´Â ÇÏ¾Ç °ßÄ¡¿´´Ù.
5. Crown index´Â ³²³à°£¿¡ ºñ½ÁÇÑ °ªÀ» º¸¿´°í, Crown module°ú Crown area´Â ¸ðµç °ª¿¡¼­ ³²ÀÚÀÇ °èÃøÄ¡°¡ ÄÇ´Ù. ¼ø(¼³)Ãø Ä¡°ü Á÷°æ°ª°ú ±Ù¿ø½É Ä¡°ü Á÷°æ°ªÀÇ °öÀ¸·Î Ç¥ÇöµÇ´Â Crown area´Â »ó¾Ç Á¦1¼Ò±¸Ä¡, ÇÏ¾Ç ÃøÀýÄ¡, ÇÏ¾Ç Á¦1¼Ò±¸Ä¡, ÇÏ¾Ç Á¦2¼Ò±¸Ä¡, ÇÏ¾Ç Á¦2´ë±¸Ä¡¸¦ Á¦¿ÜÇÑ ¸ðµç Ä¡¾Æ¿¡¼­ ³²³à°£ Â÷ÀÌ¿¡ Åë°èÇÐÀû À¯ÀǼºÀÌ ÀÖ¾ú´Ù.(p<0.05)
After 800 students of Chonbuk National University was examined, 86 people (male : 43, female 43, mean age : 22.2 years old) was selected as a group of normal occlusion. From their gypsum cast, this conclusion was obtained.
1. Intra-observer measurement errors in buccolingual diameter, maxillary lateral incisors have somewhat bigger errors. In mesiodistal diameter, maxillary first molars and maxillary second molar have bigger numerical value. Mean errors of measurement are 0.051mm at buccolingual diameter of crown and 0.083mm at mesiodistal diameter.
2. Fluctuating asymmetry is 0.030 average in buccolingual diameter, and 0.037 average in mesiodistal diameter. Statistically there are no big differences.
3. Male has longer buccolingual diameter than female in every permanent teeth. Teeth which have statistical difference in buccolingual diameter are maxillary lateral incisor, maxillary canine, maxillary second molar, mandibular central incisor, mandibular canine, mandibular second premolar, and mandibular first molar. In mesiodistal diameter maxillary central incisor, maxillary canine, and mandibular first molar have statistically difference.
4. Tooth which has the biggest difference depending on gender is maxillary lateral incisor in buccolingual diameter and mandibular canine in mesiodistal diameter.
5. Both sexes have similar crown index. Male has bigger value of crown module measurement and crown area measurement in every tooth. Crown area considered as size of tooth from occlusal surface was bigger in male than in female statistically except some teeth, maxillary first premolar, mandibular lateral incisor, first premolar and second premolar.

Å°¿öµå

Ä¡¾ÆÅ©±â;¿µ±¸Ä¡;Ä¡°üÇù¼³Á÷°æ;Ä¡°ü±Ù¿ø½ÉÁ÷°æ;Tooth size;Permanent tooth;Buccolingual diameter of crown;Mesiodistal diameter of crown

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