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A Radiological Study on th Morphology of Labial Alveolar Bone in the Mandibular incisor Area of Mandibular Prognathism Patients

Korean Journal of Orthodontics 1999³â 29±Ç 2È£ p.209 ~ 217
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±èÁ¡¼÷ (  ) - ÀüºÏ´ëÇб³ ¼öÀÇ°ú´ëÇÐ ÇغÎÇб³½Ç
ȲÇö½Ä (  ) - ÀüºÏ´ëÇб³ ¼öÀÇ°ú´ëÇÐ ÇغÎÇб³½Ç

Abstract

ÇÏ¾Ç Àüµ¹ÀÚ¿¡¼­ÀÇ Ä¡ÀºÅðÃà ¹ß»ý ¼ÒÀÎÀ» ¾Ë¾Æº¸±â À§ÇÏ¿© 20¼¼ ÀüÈÄÀÇ ¾Ç±³Á¤¼ö¼úÀ» ¿ä
ÇÏ´Â ÇϾÇÀüµ¹ÀÚ¿Í ºñ½ÁÇÑ ¿¬·É´ëÀÇ Á¤»ó±³ÇÕÀÚ¸¦ ´ë»óÀ¸·Î Ãø¸ð µÎºÎ¹æ»ç¼± »çÁø°ú ÇϾÇ
ÀüÄ¡ºÎÀÇ ´ÜÃþ ÃÔ¿µ»çÁøÀ» »ç¿ëÇÏ¿© ¼øÃø Ä¡Á¶°ñ °èÃøÄ¡¸¦ ºñ±³ ¿¬±¸ÇÑ ¹Ù ´ÙÀ½°ú °°Àº °á
°ú¸¦ ¾ò¾ú´Ù.
1. ÇϾÇÀüµ¹ÀÚÀÇ ¼øÃø Ä¡Á¶°ñ ÇÇÁúÆÇÀÇ ´Ü¸éÀûÀº Á¤»ó±ºº¸´Ù ÀǹÌÀÖ°Ô ÀÛ¾Ò´Ù.
2. ÇϾÇÀüµ¹ÀÚÀÇ Ä¡Á¶Á¤Àº Á¤»ó±º¿¡ ºñÇÏ¿© ³·Àº °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
3. ¼øÃø Ä¡Á¶°ñÆÇÀÇ ¸éÀûÀº ¹é¾Æ¹ý¶ûÁú °æ°è¿¡¼­ Ä¡Á¶Á¤±îÁöÀÇ °Å¸®¿Í´Â ¿ª»ó°ü°ü°è¸¦, Ä¡Á¶
Á¤¿¡¼­ Ä¡±Ù´Ü±îÁöÀÇ °Å¸®¿Í´Â ½¼»ó°ü°ü°è¸¦ º¸¿´´Ù.
4. ÇϾÇÀüµ¹ÀÚ¿¡¼­´Â IMPAÀÇ Áõ°¡´Â symphysisÀÇ µÎ²²¿Í ¼ø»ó°ü °ü°è¸¦, Ä¡Á¶°ñÀÇ ³ôÀÌ¿Í
´Â ¿ª»ó°ü °ü°è¸¦ º¸¿´´Ù.
ÀÌ»óÀÇ °á°ú¿¡¼­ °ñ°Ý¼º ÇϾÇÀüµ¹ÀÚ´Â º¯¿¬ºÎ ¼øÃø Ä¡Á¶°ñÀÌ Á¤»ó±³ÇÕÀÚº¸´Ù ÀÛÀ½À¸·Î Ä¡
ÀºÅðÃà ¹ß»ý °¡´É¼ºÀÌ Å­À» ½Ã»çÇÏ¿´´Ù.
#ÃÊ·Ï#
This study was concerned with comparing the measured values of labial alveolar bone
through the lateral cephalometric radiography and mandibular incisor cross-secional
tomogram between two groups, one group of mandibular prognathism patients who
needed an orthognathic surgery as an experimental group and the other group who had
normal relationships as a control group. The purpose of the study was to find out the
predisposing factors of bone resorption and gingival recession before orthodontic
treatment. The results were as follows:
1. The cross-sectional area of labial alveolar bony plate in mandibular prognathism was
significantly smaller than that of control group.
2. In mandibular prognathism, the distance between cementoenamel junction and aveolar
crest was significantly greater than control group.
3. There were negative correlations between area of labial alveolar bony plate and
distance from cementoenamel junction to alveolar crest, and positive correlations between
area of labial alveolar bony plate and distance from alveolar crest to root apex.
4. In mandibular prognathism, there were positive correlations between IMPA and
thickness of symphysis, and negative correlations between IMPA and the alveolar bony
height.
The results of the present study suggest the mandibular prognathism patients are
prone to the gingival recession due to the small amount of labial alveolar bone around
lower incisors.

Å°¿öµå

ÇϾÇÀüµ¹Áõ; Ä¡ÀºÅðÃà; ¼øÃøÄ¡Á¶°ñ ÇüÅÂ; symphysis; mandibular prognathism; gingival recession; labial alveolar bone; symphysis;

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