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AN ACOUSTIC ANALYSIS OF PRONUNCIATION IN CHILDREN WITH ANGLE'S CLASS ¥± DIV. 1 MALOCCLUSION

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Abstract

°á·Ð
ÀúÀÚ´Â Angle¾¾ I±Þ±³ÇվƵ¿ 46¸í°ú Angle¾¾ ¥±±Þ 1·ù ºÎÁ¤±³ÇվƵ¿ 15¸íÀ» ´ë»óÀ¸·Î ÇÏ
¿© ¹«¼º ¼³Ä¡Á¶ ¸¶ÂûÀ½ÀÎ /A/¿¡ ´Ü¸ðÀ½À» ÈÄ¼Ó ¹ßÀ½½ÃŲ /»ç, ¼­, ¼Ò, ¼ö, ½º, ½Ã, ¼¼(»õ)/¿Í/
¤¿, ¤Ã, ¤Ç, ¤Ì, ¤Ñ, ¤Ó, ¤Ä(¤À)/ÀÇ 14°³ÀÇ À½À» ³ìÀ½ÇÑ µÚ, À½¼º ºÐ¼® ÇÁ·Î±×·¥ÀÎ Sensimetric
Speech Station¿¡¼­, ºÐ¼®ÀÇ ¸Å°³º¯¼ö·Î °¢ À½¿¡¼­ÀÇ Á¦ 1, Á¦ 2Æ÷¸¸Æ®¸¦ ±¸ÇÑ ÈÄ À̸¦ ºñ±³
ºÐ¼®ÇÏ¿© Angle¾¾ ¥±±Þ 1·ù ºÎÁ¤±³ÇվƵ¿ÀÇ ¹ßÀ½¿¡ ´ëÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. Angle¾¾ ¥±±Þ 1·ù ºÎÁ¤±³ÇվƵ¿±º¿¡¼­ ÀÚÀ½°ú ¸ðÀ½ÀÇ Á¦ 1Æ÷¸¸Æ®´Â Angle¾¾ I±Þ±³ÇÕ¾Æ
µ¿±º°ú À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù(p>0.05).
2. ÀÚÀ½¿¡¼­ Á¦ 2Æ÷¸¸Æ®´Â/½º/¿¡¼­, F2/F1 ratio´Â /»ç, ¼­, ½Ã/¿¡¼­ À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù
(p<0.05).
3. ¸ðÀ½¿¡¼­ Á¦ 2Æ÷¸¸Æ®´Â /¤Ã/¿¡¼­ À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾úÀ¸¸ç(p<0.05) F2/F1 ratio´Â µÎ ±º
°£ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù(p>0.05).
4. ÀÚÀ½¿¡¼­ ¹ßÀ½À§Ä¡(Àü¼³, Áß¼³, Èļ³¸ðÀ½ - °í¼³, Áß¼³, Àú¼³¸ðÀ½)¿¡ µû¸¥ Æ÷¸¸Æ®ÀÇ Â÷
ÀÌ´Â ÈļӸðÀ½À¸·Î °í¼³°ú Àú¼³¸ðÀ½ÀÌ ¿À´Â °æ¿ì Á¦ 2Æ÷¸¸Æ®¿Í F2/F1 ratio°¡, Àü¼³¸ðÀ½ÀÌ
¿À´Â °æ¿ì F2/F1 ratio°¡ À¯ÀǼº ÀÖ°Ô ³·¾Ò´Ù(p<0.05).
5. ¸ðÀ½¿¡¼­ ¹ßÀ½À§Ä¡¿¡ µû¸¥ Æ÷¸¸Æ®ÀÇ µÎ ±º°£ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù(p>0.05).
#ÃÊ·Ï#
The human speech organ consists of respiration system (lung, larynx), phonation
system (vocal cord), articulation system(esophagus, pharynx, uvula, teeth, gingiva, palate,
tongue, lip) and resonating system(oral cavity, nasal cavity, paranasal sinus). Because
teeth are components of the articulation system, it has been reported that the persons
with abnormally positioned teeth generally have abnormal occlusion and pronunciation. In
this study, using /¤µ(s)/, the most commonly mispronunced consonant in children with
malocclsion, and the seven single vowels, /»ç(sa), ¼­(s¥ä), ¼Ò(so), ¼ö(su), ½º(sw), ½Ã(si),
¼¼(se)/ and /¤¿(a), ¤Ã(¥ä), ¤Ç(o), ¤Ì(u), ¤Ñ(w), ¤Ó(i), ¤Ä(e)/ were recorded and analyzed
using speech analysis.
The result were as follows :
1. In the Angle's Class ¥± div.1 group, there were no significant differences in F1 of
all recorded sounds as compared with Angle's Class I group(p>0.05).
2. In the consonants, there were significant differences in F2 of /½º(sw)/ and F2/F1
ratio of /»ç(sa), ¼­(s¥ä), ½Ã(si)/ between the two group(p<0.05).
3. In the vowels, three were significant differences F2/F1 ratio of /¤Ã(¥ä)/(p<0.05) and
nosignificant differences in F2/F1 ratio between two group(p>0.05)
4. In the consonants, there were significant difference in F2 and F2/F1 ratio when
succeeding vowels were high or low, and F2/F1 ratio when front in accordance with
tongue position(p<0.05).
5. In the vowels, there were no significant differences in formant in accordance with
tongue position(p>0.05)

Å°¿öµå

Angle's class ¥± division 1 malocclusion; abnormal pronunciation; formant; consonant /¤µ(s)/; single vowels;

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