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THE DETECTABILITY OF BONE LOSS IN THE BIFURCATION OF MANDIBULAR MOLARS ON PERIAPICAL RADIOGRAPHS AND DIGITAL IMAGES : AN EXPERIMENTAL STUDY

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Abstract

º» ¿¬±¸´Â Àΰ£ÀÇ °ÇÁ¶ÇϾǰñÀ» ÀÌ¿ëÇÏ¿© Ä¡±ÙÀÌ°³ºÎ º´¼Ò µî±Þ ¥°, ¥±, ¥²À» ÀÎÀ§ÀûÀ¸·Î
Çü¼ºÇÏ¿© ÆòÇà ±¸³»ÃÔ¿µ¼ú¿¡ ÀÇÇؼ­ ¾ò¾îÁø Ä¡±Ù´Ü »çÁø°ú À̸¦ µðÁöŻȭÇÏ¿© ¾ò¾îÁø Çü»ó
¿¡¼­ ÀÓ»ó°¡°¡ º´¼Ò¸¦ ¾ó¸¶³ª °¨ÁöÇØ ³»´Â°¡¸¦ ¾Ë¾Æº¸´Â ½ÇÇèÀ¸·Î, Ä¡±Ù´Ü »çÁø Æǵ¶¿¡´Â
39¸í (¹æ»çÀü°ú 1¸í, Ä¡ÁÖ°ú 4¸í, ÀϹÝÄ¡°úÀÇ»ç 34¸í), µðÁöÅÐ ¿µ»ó Æǵ¶¿¡´Â 15¸í(¹æ»ç¼±°ú
1¸í, Ä¡ÁÖ°ú 4¸í, ÀϹÝÄ¡°úÀÇ»ç 10¸í)ÀÇ ÀÓ»ó°¡°¡ Æ÷ÇԵǾúÀ¸¸ç ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. Ä¡±Ù´Ü »çÁø¿¡¼­ º¸´Ù µðÁöÅ» ¿µ»ó¿¡¼­ Ä¡±Ù ÀÌ°³ºÎ º´¼ÒÀÇ °¨ÁöÀ²ÀÌ ´ëü·Î ³ô¾Ò´Ù.
2. Ä¡±Ù ÀÌ°³ºÎ º´¼Ò °¨Áöµµ Â÷ÀÌ´Â Ä¡±Ù´Ü »çÁø°ú µðÁöÅ» ¿µ»ó ¸ðµÎ¿¡¼­ º´¼Ò µî±Þ ¥°,
¥± »çÀÌÀÇ º´¼Ò¹ß°ß·ü Â÷ÀÌ´Â Àû¾ú°í µî±Þ ¥±, ¥² »çÀÌÀÇ Â÷ÀÌ´Â ¸Å¿ì ³ô¾Ò´Ù(P<0.05).
3. µðÁöÅ» ¿µ»ó¿¡¼­ ´ëÁ¶µµ º¯È­¸¦ ÅëÇÑ ¿µ»ó Á¶Àý °á°ú Ç¥ÁØ ÀÔ·Â »óÅ°¡ ¹à°Ô ȤÀº ¾î
µÓ°Ô È­¸éÀ» ó¸®ÇÑ »óź¸´Ù ¾à°£ º´¼Ò ¹ß°ßÀ²ÀÌ ³ô¾ÒÀ¸³ª À¯ÀǼºÀº ¾ø¾ú´Ù.
4. ¹æ»ç¼±°ú ¹× Ä¡ÁÖ°ú Ä¡°úÀÇ»ç¿Í ÀϹÝÄ¡°úÀÇ»ç »çÀÌÀÇ Æǵ¶ Â÷ÀÌ´Â ¸ðµç µî±Þ¿¡¼­ ¹æ»ç
¼±°ú ¹× Ä¡ÁÖ°ú Ä¡°úÀǻ翡¼­ ´ëü·Î ³ô¾ÒÀ¸¸ç ƯÈ÷ ÆǺ°ÀÌ ¾î·Á¿î µî±Þ ¥°°ú ¹ß°ßÀÌ ½¬¿î
µî±Þ ¥²¿¡¼­ ÀϹÝÄ¡°úÀǻ翡 ºñÇØ ÈξÀ ³ô¾Ò´Ù.
#ÃÊ·Ï#
The aim of this study was to evaluate clinician's detectability in the diagnosis of
bone loss in the bifurcation of mandibular molars on periapical radiographs and Digital
images.
Periapical radiographs were obtained of the first molars in 2 dry mandibles after
preparation of bony defects corresponding to degree ¥°, degree ¥± and degree ¥² buccal
furcation involvements. The radiographs were randomly presented to 39 clinicians(1 oral
radiologist, 4 periodontist, 34 general dentists) who were asked to determine the
presence or absence of bone loss. Periapical films were digitized with a TV camera.
Digital images were assessed by 15 clinicians(1 offal radiologist, 4 periodontist, 10
general dentists).
1. the overall diagnostic accuracy of Digital images for detection of bone loss in the
bifurcation of mandibular molars was higher than that of the periapical radiographs.
2. the largest increase in diagnostic accuracy was found between lesion grade ¥± and
¥² on both radiographs and Digital images(P<0.05).
3. there was no significant difference between the standard state and the controlled
contrast state on Digital Images.
4. the overall diagnostic accuracy of 1 radiologist and 4 periodontists was better than
that of the general dentists for detecting bifurcation involvements.

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