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An Acoustic Analysis Of Abnormal Pronunciation In Children With Anterior Crossbite

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¹ÚÁ¤»ï/Jeong Sam Park Àå±âÅÃ/ÀÌ»óÈÆ/±èÁ¾Ã¶/¼Õµ¿¼ö/±èÁøÅÂ/ÇѼ¼Çö/Ki Taeg Jang/Sang Hoon Lee/Chong Chul Kim/Dong Su Shon/Jin Tae Kim/Se Hyun Hahn

Abstract

°á·Ð
ÀúÀÚ´Â ¼­¿ï´ëÇб³º´¿ø ¼Ò¾ÆÄ¡°ú¿¡ ³»¿øÇÑ ÀüÄ¡ºÎ ¹Ý´ë±³ÇվƵ¿ 20¸í (³²ÀÚ 5¸í, ¿©ÀÚ 15
¸í)°ú 95³â ¼­¿ï½Ã °ÇÄ¡¾Æµ¿¼±¹ß´ëȸ¿¡ Âü°¡ÇÑ ÀüÄ¡ºÎ Á¤»ó±³ÇվƵ¿ 40¸í(³²ÀÚ 20¸í, ¿©ÀÚ
20¸í)À» ´ë»óÀ¸·Î /»ç, ¼­, ¼Ò, ¼ö, ½º, ½Ã, ¼¼(»õ) /ÀÇ 7À½À» ¹ßÀ½½ÃŲ ÈÄ ³ìÀ½ÇÏ¿© IBM PC
ÀÇ À½¼ººÐ¼® programÀÎ Sensimetric Speech StationÀ» ÀÌ¿ëÇÏ¿© °¢ ¸ðÀ½ÀÇ Æ÷¸¸Æ® °ªÀ» Ãø
Á¤ÇÏ°í IBM PCÀÇ Åë°è programÀÎ SPSS¸¦ ÀÌ¿ëÇÏ¿© Åë°èºÐ¼®ÇÏ°í µÎ ±º°£ÀÇ ¹ßÀ½ÀÇ Â÷ÀÌ
¸¦ Á¤·®È­½ÃÄÑ ºñ±³ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ÀüÄ¡ºÎ ¹Ý´ë±³ÇÕ ¾Æµ¿±ºÀÇ 7À½ ¸ðµÎ¿¡¼­ F1ÀÌ Á¤»ó±³ÇÕ ¾Æµ¿±º¿¡ ºñÇØ À¯ÀǼº ÀÖ°Ô ³ô¾Ò
´Ù(p<0.05).
2. F2´Â/¼Ò, ¼ö /¸¦ Á¦¿ÜÇÏ°í´Â µÎ ±º°£¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù(p>0.05).
3. ÀüÄ¡ºÎ ¹Ý´ë±³ÇÕ ¾Æµ¿±ºÀÇ 7À½ ¸ðµÎ¿¡¼­ F2/F1 ratio°¡ Á¤»ó±³ÇÕ ¾Æµ¿±º¿¡ ºñÇØ À¯ÀǼº
ÀÖ°Ô ÀÛ¾Ò´Ù(p<0.05).
4. F1, F2, F2/F1¸ðµÎ µÎ ±º°£¿¡ ¹ßÀ½À§Ä¡(Àü¼³, Áß¼³, Èļ³ ¸ðÀ½-°í¼³, Áß¼³, Àú¼³ ¸ðÀ½)¿¡
µû¸¥ Â÷ÀÌ´Â ¾ø¾ú´Ù(p>0.05).
#ÃÊ·Ï#
It has widely known for speech problem in patients with malocclusion, but there hat
been insufficient studies on degrees of severity. Patients with openbite and Cl ¥²
malocclusion usually have speech problem. It has widely known that fricative /s/ is
pronunciated most abnormally in Cl ¥² malocclusion than any other consonant. Therefore
20 children with anterior crossbite were selected for study groups and 40 children with
normal anterior occlusion were selected for control group.7 sounds such as /»ç(sa), ¼­(s
),¼Ò(so), ¼ö(su), ½º(s ), ½Ã(si), ¼¼(se)/ were recorded, and the formants and formants
ratios were measure by using Sensimetric Speech Station, which is speech analyzing
program in IBM PC. The results were as follows :
1. In anterior crossbite group, F1 of all 7 sounds were significantly higher than normal
anterior relationship group(p<0.05).
2. There were no significant difference in F2 between two groups except /¼Ò(so), ¼ö(su)
/(p>0.05) .
3. In anterior crossbite group, F2/F1 ratio of all 7 sounds were significantly smaller than
normal anterior relationship group(p<0.05).
4. There were no significant difference in accordance with tongue position(p>0.05).

Å°¿öµå

anterior crossbite; abnormal pronunciation; formant; consonant /s/;

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