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A STUDY ON THE POSTURE AND FORCE OF TONGUE BY ANGLE

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Abstract

°á·Ð
º» ¿¬±¸´Â ºÎÁ¤±³ÇÕ¿¡ µû¸¥ ¼³À§Ä¡ ¹× ¼³¾Ð¿¡ ´ëÇÏ¿© ¾Ë¾Æº¸°íÀÚ ¼±ÃµÀû ¾Ç¾È¸é ±âÇüÀ̳ª
ÁúȯÀÌ ¾ø´Â 7¡­11¼¼ÀÇ ¾î¸°À̸¦ Angle¾¾ ºÐ·ù¿¡ ÀÇÇØ I±Þ 19¸í, II±Þ 19¸í, III±Þ 20¸íÀ¸·Î
³ª´©¾î ¾ÈÁ¤À§½ÃÀÇ Ãø¸ðµÎºÎ¹æ»ç¼± »çÁøÀ» ÀÌ¿ëÇÏ¿© Çô ¹× ¼³°ñÀÇ À§Ä¡¸¦ ÃøÁ¤ÇÏ°í
physiograph¸¦ »ç¿ëÇÏ¿© »óÇÏ¾Ç ÀüÄ¡¿¡ °¡ÇØÁö´Â ¿¬ÇÏ, ¹ßÀ½½ÃÀÇ ¼³±â´É¾Ð ¹× ÃÖ´ë¾ÐÀ» Ãø
Á¤ÇÏ¿© À̸¦ °¢ ºÎÁ¤±³ÇÕº°·Î ºñ±³°Ë»çÇÏ¿´´Ù. ¶ÇÇÑ Á߽ɱ³ÇÕÀ§½Ã ÃÔ¿µÇÑ Ãø¸ðµÎºÎ¹æ»ç¼±»ç
ÁøÀÇ µÎ°³¾È¸é°èÃøÄ¡¿Í ¼³À§Ä¡ ¹× ¼³¾Ð°£ÀÇ »ó°ü°ü°è¸¦ ºñ±³ºÐ¼®ÇÏ¿© ºÎÁ¤±³ÇÕ¿¡ µû¸¥ ¼³À§
Ä¡¿Í ¼³¾Ð¿¡ °üÇØ ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. ¼³Ã·Àº I±Þ¿¡ ºñÇØ II±Þ°ú III±Þ¿¡¼­ ÇÏÈĹ濡 À§Ä¡ÇÏ¿´À¸¸ç, ¼³¹è´Â III±Þ¿¡¼­ °¡Àå ÇϹæ
¿¡ À§Ä¡ÇÏ¿´´Ù. ¼³°ñÀº I±Þ, II±Þ ¹× III±Þ¿¡¼­ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù.
2. »ó¾Ç ÀüÄ¡¿¡ °¡ÇØÁö´Â ¼³¾ÐÀº °¢ ±º°£¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸³ª ÇÏ¾Ç ÀüÄ¡¿¡ °¡ÇØÁö´Â
¹ßÀ½½Ã ¼³¾ÐÀº III±Þ¿¡¼­ °¡Àå ³ô¾Ò´Ù.
3. ¹ßÀ½½Ã ÇÏ¾Ç ÀüÄ¡¿¡ ´ëÇÑ »ó¾Ç ÀüÄ¡ÀÇ ¼³¾ÐºñÀ²Àº I±Þ¿¡¼­ °¡Àå Å©°í, II±Þ, III±Þ ¼øÀ¸·Î
À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù.
4. ¾ÈÁ¤À§¿¡¼­ ¼³Ã·ÀÇ ¼öÆòÀû À§Ä¡´Â I±Þ¿¡¼­ Á߽ɱ³ÇÕÀ§ ¾È¸é°ñ°ÝÇüÅÂÀÇ ANB, AB plane
angle, Posterior facial height¿Í II±Þ¿¡¼­ Y axis to FH, FMA¿Í, III±Þ¿¡¼­ SNA, Overjet°ú
»ó°ü¼ºÀ» º¸¿´´Ù.
5. I±Þ, II±Þ ¹× III±Þ °¢°¢¿¡¼­ »ó¾Ç ¹× ÇÏ¾Ç ÀüÄ¡¿¡ °¡ÇØÁö´Â ¼³¾ÐÀº Á߽ɱ³ÇÕÀ§ µÎ°³ ¾È¸é
°èÃøÄ¡¿Í »ó°ü¼ºÀ» º¸¿´´Ù.
6. ¼³Ã·ÀÇ ¼öÁ÷Àû À§Ä¡¿Í ¼³¹èÀÇ ¼öÁ÷Àû À§Ä¡°¡ ³·À»¼ö·Ï ¿¬ÇϽà ÇÏ¾Ç ÀüÄ¡¿¡ °¡ÇØÁö´Â ¼³
¾ÐÀº Áõ°¡ÇÏ´Â °æÇâÀ» º¸¿´´Ù.
#ÃÊ·Ï#
This study was to investigate the effect of posture and force of tongue on the
malocclusion by Angle's Classification.
Fifty eight subjects who had no congenital orofacial defects- 19 of Class I, 19 of Class
II and 20 of Class III- were selected. The posture of tongue and hyoid bone was
measured by lateral cephalogram taken at rest. Also pressures of tongue in swallowing,
phonetics and maximum thrust were measured with physiograph and analysed for each
group. And lateral cephalogram was taken form the same subject at centric occlusion
and the posture and force of tongue were compared with craniofacial variables.
Results of the present investigation led to the following results :
1. Tongue tips of Class II and III were located at lower and more posterior position
than that of Class I and the tongue dorsum was located at the lowest position in Class
III. There was no difference in position of hyoid bone among Class I, II and III.
2. There was no difference of tongue pressure exerted to maxillary incisor among
Class I, II and III, but there was the highest tongue pressure of Class III during speech
exerted to mandibular incisors.
3. The ratio of upper pressure to lower pressure of the tongue during speech is the
highest in Class I followed by Class II and III.
4. Horizontal position of tongue tip at rest position was correlated with ANB, AB plane
angle, Posterior facial height of craniofacial measurement in Class I, Y axis to FH plane,
FMA in Class II, and SNA, Overjet in Class III.
5. There were correlation between upper and lower pressures of tongue and craniofacial
measurements at centric occlusion in each Class.
6. The lower level of tongue tip and tongue base, the higher pressure of tongue
exerted to lower incisors.

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