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A STUDY ON THE OPTIMAL ILLUMINATION POWER OF DIFOTI

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±èÁ¾ºó, ±èÁ¾¼ö, À¯½ÂÈÆ, ±è¿ë±â,
¼Ò¼Ó »ó¼¼Á¤º¸
±èÁ¾ºó ( Kim Jong-Bin ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÁ¾¼ö ( Kim Jong-Soo ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
À¯½ÂÈÆ ( Yoo Seung-Hoon ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±è¿ë±â ( Kim Yong-Kee ) - °¡¿ÂÄ¡°úº´¿ø

Abstract

±âÁ¸ DIFOTI ½Ã½ºÅÛÀÇ ¹®Á¦Á¡ Áß µðÁöÅÐ ¿µ»ó ó¸®ÀÇ °³¼±À» À§ÇÏ¿© light emitting diode(LED)¸¦ ±¤¿øÀ¸·Î »ç¿ëÇÏ¿© prototype DIFOTI ½Ã½ºÅÛÀ» °³¹ßÇÏ¿´´Ù. È¿À²ÀûÀÌ°í ¿ì¼öÇÑ È­ÁúÀ» Á¦°ø ÇÒ ¼ö ÀÖ´Â ±¤·®À» »êÃâÇϱâ À§ÇØ 1ÀϺÎÅÍ 20ÀϱîÁö À¯Ä¡ ¹ý¶ûÁúÀ» Carbopol 907 Àΰø ¿ì½Ä ¿ë¾×À» »ç¿ëÇÏ¿© Żȸ½ÃÅ°°í ½ÇÇè ±â°£¿¡ µû¸¥ ¹ý¶ûÁú Żȸ Á¤µµ¸¦ ±âÁ¸ÀÇ DIFOTI TM ½Ã½ºÅÛ°ú ¿µ»ó ºÐ¼®À» ÅëÇØ ºñ±³ Æò°¡ÇÏ¿´À¸¸ç, Żȸ Á¤µµ¿¡ ´ëÇÑ gold standard·Î »ç¿ëµÈ Æí±¤ Çö¹Ì°æ ¼Ò°ß°ú ºñ±³ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù. 1. Żȸ ±â°£¿¡ µû¶ó µÎ ½Ã½ºÅÛ ¸ðµÎ Żȸ ¹ý¶ûÁúÀÇ ±¤µµ°¡ °¨¼ÒÇÏ´Â ¾ç»óÀ» º¸¿´´Ù. 2. Á¤»ó ¹× Żȸ ¹ý¶ûÁú°£ÀÇ ±¤µµÀÇ Â÷ÀÌ´Â DIFOTITM ½Ã½ºÅÛÀÌ prototype DIFOTI ½Ã½ºÅÛº¸´Ù ´õ Å« °ªÀ» º¸¿´´Ù. 3. Æí±¤Çö¹Ì°æ °üÂû ¼Ò°ß°ú ºñ±³ÇØ º¼ ¶§, DIFOTITM ½Ã½ºÅÛÀº º´¼Ò ±íÀÌ¿Í ¸Å¿ì À¯»çÇÑ º¯È­ ¾ç»óÀ» º¸¿©ÁØ ¹Ý¸é, prototype DIFOTI ½Ã½ºÅÛÀº º´¼Ò ±íÀÌÀÇ º¯È­¸¦ ÃæºÐÈ÷ ¹Ý¿µÇÏÁö ¸øÇÏ¿´´Ù. º¸´Ù ¿ì¼öÇÑ ¿µ»óÀ» ¾ò±â À§Çؼ­´Â ±¤·®ÀÇ ÃÖÀûÈ­ °úÁ¤°ú ÇÔ²² µðÁöÅÐ Ä«¸Þ¶óÀÇ Á¶¸®°³ Á¶Àýµµ º´ÇàµÇ¾î¾ß ÇÒ °ÍÀ¸·Î ÆǴܵǸç, ÀÌ·¯ÇÑ ´ÜÁ¡Àº ¼ÒÇÁÆ®¿þ¾îÀûÀÎ º¸¿ÏÀ» ÅëÇØ °³¼±µÉ ¼ö ÀÖÀ» °ÍÀ¸·Î »ç·áµÈ´Ù.

This study was performed to compare the quality of image processing between the newly developed prototype using light emitting diode(LED) and the conventional DIFOTITM system(EOS Inc., USA). To estimate the optimal light emitting power for the improved images, primary enamel surfaces treated under Carbopol 907 de-mineralizing solution were taken daily during 20 days of experimental periods by both DIFOTI systems. The results of comparative analyses on the images obtained from both systems with polarized image as gold standard can be summarized as follows: 1. Trans-illumination indices of images taken from primary enamel surfaces were decreased with time in both systems. 2. The differences of intensity of luminance between sound and de-mineralized enamel surface in prototype DIFOTI system was shown to be relatively smaller than conventional DIFOTITM system. 3. From the comparative analysis of images from both DIFOTI system with polarized images as gold standard, the difference between sound and de-mineralized enamel surface of intensity of luminance of DIFOTI TM system was more correlated to polarized images than prototype of DIFOTI system. With the optimal LED emitting power, the control of aperture of digital camera is considered as the another key factor to improve the DIFOTI images. For the best image quality and analysis, the development of the improved image processing software is required.

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¹ý¶ûÁú ¿ì½ÄÁõ;Á¶±â ¿ì½Ä Áø´Ü Àåºñ;Æí±¤ Çö¹Ì°æ
Fiber-optic trans-illumination;Enamel caries;Early detection of dental caries;Polarized microscope

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