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A RADIOGRAPHIC STUDY OF MANDIBULAR CANAL

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Abstract

ÀúÀÚ´Â ¿¬·É ¹× ÇϾǰ¢¿¡ µû¸¥ ÇϾǰüÀÇ ÁÖÇà¹æÇâ°ú ÇϾǰüÀÇ ÇغÎÇÐÀû ¹× ¹æ»ç¼±ÇÐÀû À§
Ä¡¸¦ ÆľÇÇÒ ¸ñÀûÀ¸·Î, 11¼¼ÀÌ»ó 40¼¼ÀÌÇÏ ³²³à 458¸íÀÇ PantomogramÀ» Àç·á·Î ¿¬·É¿¡ µû
¶ó 1±º(11-15¼¼), 2±º(16-20¼¼), 3±º(21-25¼¼), 4±º(26¡­30¼¼), 5±º(31¼¼ÀÌ»ó)À¸·Î ºÐ·ùÇÏ°í,
´Ù½Ã ÇϾǰ¢À» ±âÁØÀ¸·Î 3±ºÀ¸·Î ¾ÆºÐ·ùÇÏ¿© ÇϾǰ¢°ú ÇϾÇÀú¿¡ ´ëÇÑ ÇϾǰüÀÇ ÁÖÇà°¢µµ ¹×
ÀÌ°üÀÇ ±¼°î°¢µµ»çÀÌÀÇ »ó°ü°ü°è¿Í Ä¡±Ù ¹× ÇϾÇÀúÇÇÁú°ñÆÇ¿¡ ´ëÇÑ ÇϾǰüÀÇ À§Ä¡¸¦ Á¶»çÇÏ
¿© ´ÙÀ½°ú °°Àº °á·Ð¸¦ ¾ò¾ú´Ù.
1. ÇϾǰ¢Àº ¿¬·ÉÀÌ Áõ°¡ÇÔ¿¡ µû¶ó °¨¼ÒÇÏ¿´À¸³ª, 26¼¼ÀÌÈÄ¿¡¼­ ´Ù½Ã Áõ°¡ÇÏ´Â °æÇâÀ» ³ª
Ÿ³Â´Ù.
2. ÇϾÇÀú¿¡ ´ëÇÑ ÇϾÇÁöºÎÀ§ ÇϾǰüÀÇ ÁÖÇà°¢µµ´Â ÀüüÆò±ÕÀÌ 151.6¡£¿´À¸¸ç ¿¬·É¿¡ µû¸¥
Áõ°¨Àº ¾ø¾ú´Ù(P>0.05).
3. ÇϾÇÀú¿¡ ´ëÇÑ ÀÌ°üÀÇ ±¼°î°¢µµ´Â ÀüüÆò±ÕÀÌ 36.9¡£ÀÌ¸ç ¿¬·É¿¡ µû¸¥ Áõ°¨Àº ¾ø¾ú´Ù
(P>0.05).
4. ÇϾǰ¢°ú ÇϾÇÀú¿¡ ´ëÇÑ ÇϾǰüÀÇ ÁÖÇà°¢µµ ¹× ÀÌ°üÀÇ ±¼°î°¢µµ»çÀÌ¿¡´Â ³ôÀº »ó°ü°ü
°è(P<0.01)°¡ ÀÖ¾ú´Ù.
5. Á¦2´ë±¸Ä¡ ¿ø½ÉÄ¡±Ù´ÜºÎÀ§¿¡¼­ ÇϾǰü»óº®ÀÌ Ä¡±Ù¿¡ °¡Àå ±ÙÁ¢ÇÏ¿´°í ¿¬·ÉÁõ°¡¿¡ µû¶ó
±ÙÁ¢ºñÀ²ÀÌ ´Ù¼Ò °¨¼ÒÇÏ¿´´Ù(P<0.05).
6. Á¦2´ë±¸Ä¡ ±Ù½ÉÄ¡±Ù´ÜºÎÀ§¿¡¼­ ÇϾǰüÇϺ®ÀÌ ÇϾÇÀúÇÇÁú°ñÆÇ¿¡ °¡Àå ±ÙÁ¢ÇÏ¿´À¸¸ç ¿¬
·ÉÁõ°¡¿Í ±ÙÁ¢ºñÀ²°£¿¡¼­´Â »ó°ü°ü°è°¡ ¾ø¾ú´Ù(P>0.05).
#ÃÊ·Ï#
The author invested the gonial angle, the angle of mandibular and mental canal to the
lower border of the mandible, and a relationship of the position of the mandibular canal
to the root apex of the posterior teeth and the cortical plate of the lower of the
mandible.
The materials consisted of 458 pantomograms in male and female aged 11-40 and
divided into 5 groups at 5 year intervals and subdivided into 3 groups by gonial angle.
The results were as follows;
1. The gonial angle decreased with age, but slight increase occurred over 26-30 years.
2. The average angle of the mandibular canal to the lower border of the mandible
was 151.6¡£ and did not correlate with age.
3. The average angle of the mental canal to the lower border of the mandible was
36.9¡£ and didn't correlate with age.
4. The angles of mandibular and mental canal to the lower border of the mandible
correlated with gonial angle.
5. The distance from the root apex of the posterior teeth to the upper wall of the
mandibular canal was most short at the region of the distal root of the mandibular
second molar and increased with age at the region of the mandibular second molar.
6. The distance from the lower wall of the mandibular canal to the cortical plate of
the lower border of the mandible was most short at the region of the mesial root of the
mandibular first molar and didn't correlate with age.

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