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A Study on the Diagnostic Detection Ability of the Artificial Proximal Caries by DigoraR

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Abstract

ÀÎÁ¢¸é Ä¡¾Æ¿ì½ÄÁõÀÇ Áø´ÜÀ» À§ÇÑ ±¸³» °£Á¢ µðÁöÅÐ ¿µ»ó ½Ã½ºÅÛÀÎ Digora½Ã½ºÅÛÀÇ ¼öÇà
´É·ÂÀ» Æò°¡Çϱâ À§ÇÏ¿© º» ¿¬±¸¸¦ ½ÃÇàÇÏ¿´´Ù. °ÇÀüÇÑ ¼Ò±¸Ä¡ ´ë±¸Ä¡ °¢°¢ 30°³¸¦ ÀÌ¿ëÇÏ
¿©ÀÎÁ¢¸é 120¸éÁß 60¸é¿¡ ¥°±Þ(Ãʱâ¿ì½Äº´¼Ò»ó), ¥±±Þ(ÁøÇàµÈ ¿ì½Äº´¼Ò»ó) Àΰøº´¼Ò¸¦ Çü¼º
ÇÑ ÈÄ ¾ò¾îÁø ±¸³»Ç¥Áعæ»ç¼±»çÁø»ó°ú DigoraºñÁ¶Àý ¿µ»ó, Digora°èÁ¶µµÁ¶Àý¿µ»ó, Digoraº¯
¿¬°­Á¶¿µ»ó µî 3°¡Áö Digora¿µ»ó¹ý¿¡ ´ëÇÏ¿© º´¼Ò±íÀÌ¿¡ µû¸¥ ROC ºÐ¼®À» ½ÃÇàÇÏ¿© ´ÙÀ½
°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù
1. ±¸³»Ç¥Áعæ»ç¼±»çÁø»ó, DigoraºñÁ¶Àý¿µ»ó, Digora°èÁ¶µµÁ¶Àý¿µ»ó, Digoraº¯¿¬°­Á¶¿µ»ó
ÀÇ I±Þº´¼ÒÀÇ ROC¸éÀû Æò±Õ°ªÀº °¢°¢ 0.953, 0.933, 0.965, 0.978À̾úÀ¸¸ç, Digoraº¯¿¬°­ Á¶¿µ
»ó, Digora°èÁ¶µµÁ¶Àý¿µ»ó, ±¸³»Ç¥Áعæ»ç ¼±»çÁø»ó, DigoraºñÁ¶Àý¿µ»ó¼øÀ¸·Î ³ô°Ô ³ªÅ¸³µ´Ù
(p>0.05).
2. ±¸³»Ç¥Áعæ»ç¼±»çÁø»ó, DigoraºñÁ¶Àý¿µ»ó, Digora°èÁ¶µµÁ¶Àý¿µ»ó, Digoraº¯¿¬°­Á¶¿µ»ó
ÀÇ ¥±±Þº´¼ÒÀÇ ROC¸éÀû Æò±Õ°ªÀº °¢°¢ 0969, 0.964, 0.988, 0.994À̾úÀ¸¸ç, Digoraº¯¿¬°­Á¶¿µ
»ó, Digora°èÁ¶µµÁ¶Àý¿µ»ó, ±¸³»Ç¥Áعæ»ç¼±»çÁø»ó, DigoraºñÁ¶Àý¿µ»ó¼øÀ¸·Î ³ªÅ¸³µ´Ù
(p>0.05). ¥±±Þº´¼Ò¿¡ ´ëÇÑ Digoraº¯¿¬°­Á¶¿µ»óÀº ±¸³»Ç¥Áعæ»ç¼±»çÁø»óº¸´Ù À¯ÀǼºÀÖ°Ô Áõ
°¡µÈ Áø´Ü´ÉÀ» ³ªÅ¸³»¾ú´Ù(p<0.05).
3. °üÂûÀÚ°£ ´Ù¾ç¼º (interobserver variability;sd2)Àº ¿ì½Äº´¼Ò ±íÀÌ¿¡ »ó°ü
¾øÀÌ Digoraº¯¿¬ °­Á¶¿µ»óÀÌ °¡Àå ³·¾ÒÀ¸¸ç, Digora°èÁ¶µµÁ¶Àý ¿µ»ó, ±¸³»Ç¥Áعæ»ç¼±»çÁø»ó,
DigoraºñÁ¶Àý ¿µ»ó¼øÀ¸·Î ³·°Ô ³ªÅ¸³µ´Ù(p>0.05).
°á·ÐÀûÀ¸·Î, ÇöÀçÀÇ ±¸³» °£Á¢ µðÁöÅÐ ¿µ»ó ½Ã½ºÅÛÀÎ Digora ½Ã½ºÅÛÀº Ä¡¾Æ¿ì½ÄÁõ Áø´Ü½Ã
±¸³»Ç¥Áعæ»ç¼±»çÁø»ó°ú µ¿µîÇÑ Áø´Ü´É, °üÂûÀÚ°£ ´Ù¾ç¼ºÀ» ³ªÅ¸³»¸ç, Ç¥Áعæ»ç¼±»çÁø»óÀ»
´ë½Å ÇÒ ¼ö ÀÖ´Â ÀáÀç·ÂÀ» Áö´Ñ ¿µ»ó½Ã½ºÅÛÀ̶ó »ç·áµÈ´Ù.
#ÃÊ·Ï#
Digora system is an intraoral indirect digital radiography system utilizing storage
phosphor image plate. It has wide dynamic range which allows it to decrease the
patient's exposure time and may increase diagnostic ability through image processing
(such as edge enhancement, grey scale conversion, brightness change, and contrast
enhancement), And also, it can transmit and storage image information.
The purpose of this study was to evaluate the diagnostic ability of artifical proximal
caries between Conventional radiograph and Digora images(unenhanced image, brightness
& contrast controlled image, and edge enhanced image). ROC(Receiver Operating
Characteristic) analysis, paired t-tests, and F-tests were done for the statistical
evaluation of detectability. The following results were acquired:
1. In Grade I lesions, the mean ROC areas of Conventional radiograph, Digora
unenhanced image, Digora controlled image, and Digora edge enhanced image were
0.953, 0.933, 0.965, 0.978 (p>0.05).
2. In Grade ¥± lesions, the mean ROC areas of Conventional radiograph, Digora
unenhanced image, Digora controlled image, and Digora edge enhanced image were
0.969, 0.964, 0.988, 0.994. Among theses areas, there was just statistical significance
between Diagnostic of Digora edge enhanced image and Conventional radiograph(p<0.05)
.
3. In the Interobserver variability, the ROC curve areas of Digora edge enhanced
image was lowermost in these areas, regardless of the Carious lesion depths.
In conclusion, intraoral indirect digital system, Digora system, has the potential
possibility as an alternative of Conventional radiograph in the diagnosis of proximal
caries.

Å°¿öµå

Radiography; dental; diagnosis; dental caries; ROC curve;

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