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A RADIOGRAPHIC STUDY ON EXPERIMENTAL BONY LESIONS

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Abstract

ÀúÀÚ´Â Ä¡±Ù´Ü °ñÆı«¸¦ ¹æ»ç¼±»ó¿¡¼­ Æò°¡Çϱâ À§ÇØ ¼ºÀÎÀÇ °ÇÁ¶ ÇϾǰñÀ» »ç¿ëÇÏ¿©, ÁÂ
¡¤ ¿ìÃø ÇÏ¾Ç Á¦2´ë±¸Ä¡ºÎ¿Í 4°³ÀÇ ÇÏ¾Ç ¼Ò±¸Ä¡ºÎ¿¡ ÀÎÀ§ÀûÀ¸·Î Ä¡±Ù´Ü °ñº´¼Ò¸¦ Çü¼ºÇÏ¿´
´Ù ¾Ç°ñÀº °íÁ¤½ÃÄ×À¸¸ç, ÀÌ»óÀû ÀÎ Á¶°ÇÇÏ¿¡¼­ ¹æ»ç¼± ÃÔ¿µÀ» ½ÃÇàÇÏ°í, ¾ò¾îÁø ¹æ»ç¼±»óÀÇ
Æǵ¶°ú ½ÇÁ¦ °ñº´¼ÒºÎÀÇ Å©±â¸¦ ºñ±³ÇÑ °á°ú ´ÙÀ½°ú °°¾Ò´Ù.
1. ½ÇÁ¦ °ñº´¼ÒÀÇ Å©±â´Â Ç×»ó ¹æ»ç¼±»óÀÇ °ñº´¼Ò Å©±âº¸´Ù ÄÇ´Ù.
2. ÇÇÁú°ñÆÇÀÌ µÎÅÍ¿î ±¸Ä¡ºÎ¿¡¼­´Â ½ÇÁ¦ °ñº´¼ÒÀÇ Å©±â°¡ ÈÙ¾À ÄÇÀ¸¸ç, ¼Ò±¸Ä¡ºÎÀÇ ½ÇÁ¦
°ñº´¼ÒµéÀº ¹æ»ç¼±»óÀÇ Å©±âº¸´Ù ¾à°£ ´õ ÄÇ´Ù.
3. ´Ù°øÁú°ñ¿¡ ±¹ÇѵǾîÀÖ´Â Ä¡±Ù´Üº´¼Ò´Â ±× º´¼ÒºÎÀÇ Å©±â¿¡ °ü°è¾øÀÌ ¹æ»ç¼±»ó¿¡¼­ °ü
µ¶µÇÁö ¾ÊÀ¸¸ç, ÇÇÁú°ñÆÇÀÌ Ãµ°øµÇ°Å³ª, junctional boneÀÌ ÀÌȯµÇ¾úÀ» ¶§ ¶Ñ·ÇÇÑ °ñº¯È­¸¦
°üÂûÇÒ ¼ö ÀÖ´Ù.
4. ÇùÃø ȤÀº ¼³Ãø ÇÇÁú°ñÆÇÀ» Á¦°ÅÇÏ¿© ¹æ»ç¼±»óÀ» ÃÔ¿µÇßÀ» ¶§µµ °ñÁÖ¾ç»ó¿¡´Â º¯ÇÔÀÌ
¾ø¾ú´Ù.
5. ´Ù°øÁú°ñ°ú junctional boneÀ» ÇÔ²² Á¦°ÅÇÑ °æ¿ì¿¡´Â °ñÁÖ¾ç»óÀÌ º¯ÇÔÀ» °üÂûÇÒ ¼ö ÀÖ¾ú´Ù.
#ÃÊ·Ï#
The author studied the effect of periapical bone loss on radiographic interpretation by
using a dry adult human mandible. Artificial bony lesions were created at the apices of
two mandibular second molars and four mandibular bicuspids.
The jaw was stabilized and various artificial lesions were radiographed under ideal
circumstances. Radiographic pictures were recorded and compared with the size of the
actual lesions.
The obtained results were as follows:
1. The size of actual lesions were always larger than their radiographic pictures.
2. The size of actual lesion had a greater discrepancy in the molar area where the
cortical plates were havier, but the lesions in the bicuspid areas were only slightely
larger than their radio-graphic pictures, and in these areas the cortical plates were quite
thin.
3. Periapical lesions located in cancellous bone did not appear on a radiograph,
regardless of the size of the created lesion, but when the junctional bone was involved
or the cortical plate was perforated, the definite bone destructive change was observed
on the roentenogram.
4. Removal of the entire buccal or lingual plate did not affect the trabecular pattern of
bone on the roentgenogram.
5. When the cancellous bone and junctional bone were removed simultaneously, altered
trabecular patterns were observed on the roentgenogram.

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