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A CLINICAL STUDY ON THE MAINTENANCE OF LIGHT INTENSITY OF VISIBLE-LIGHT CURING MACHINES FOR THE POLYMERIZATION OF COMPOSITE RESINS

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À̵¿¼ö, Á¤Å¼º, ±è½Å,
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À̵¿¼ö ( Lee Dong-Soo ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
Á¤Å¼º ( Jeong Tae-Sung ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±è½Å ( Kim Shin ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

±¤ÁßÇÕÇü º¹ÇÕ·¹ÁøÀº ÀϺΠ¼ººÐµéÀÌ °­ÇÑ ±¤ÇÐ-ÀüÀڱ⼱¿¡ ³ëÃâµÊÀ¸·Î½á °æÈ­µÈ´Ù. ÃÖÃÊÀÇ Á¦Ç°µéÀº Àڿܼ±À» ÀÌ¿ëÇÏ¿© ÁßÇյǾú´Ù. ÃʱâÀÇ ÀÌ·¯ÇÑ Á¦Ç°µéÀº ÀÛ¾÷½Ã°£ÀÇ Á¶Àý°¡´É ±âÆ÷ Çü¼º °¨¼Ò, »ö ¾ÈÁ¤¼º Çâ»óÀ¸·Î °¢±¤¹Þ¾ÒÁö¸¸, Àڿܼ±ÀÇ À§ÇØ ¼º°ú ¾èÀº ÁßÇÕ±íÀ̸¦ ±Øº¹ÇÏÁö ¸øÇØ °á±¹ °¡½Ã±¤¼± ÁßÇÕÇüÀ¸·Î ´ëüµÇ¾ú´Ù. °¡½Ã±¤¼± ÁßÇÕÇü º¹ÇÕ·¹ÁøÀÇ ÁßÇտϼºµµ´Â ´Ü·®Ã¼(monomer)¿¡¼­ º¹ÇÕü(polymer)·ÎÀÇ º¯È¯À²¿¡ ÀÇÇØ °áÁ¤µÈ´Ù. °á±¹ ¼öº¹¹°ÀÇ ¼º°ø¿©ºÎ´Â Á¶»çµÈ °¡½Ã±¤¼±ÀÇ ÁßÇմɷ°ú ¹ÐÁ¢ÇÑ ¿¬°ü¼ºÀ» °®´Â´Ù. À̹ø Á¶»çÀÇ ¸ñÀûÀº ÇöÀç ÀÓ»ó(Ä¡°ú º´ ÀÇ¿ø)¿¡¼­ »ç¿ëµÇ°í ÀÖ´Â ±¤ÁßÇÕ±âÀÇ ±¤µµ¸¦ ¿©·¯ ¿¬±¸¸¦ ÅëÇÏ¿© ±× ½Å·Ú¼ºÀÌ ÀÔÁõµÈ digital radiometer¸¦ ÀÌ¿ëÇØ Æò°¡ÇÏ°í, 3°¡Áö ±âº»ºÎÇ°ÀÇ °áÇÔÀ» °ËÁõÇؼ­ Àӻ󰡵鿡°Ô À¯ÀÍÇÑ Á¤º¸¸¦ ÁÖ±â À§ÇÔÀÌ´Ù. Á¶»ç °á°ú, Á¶»ç ´ë»ó ±¤ÁßÇÕ±â Áß 17.8%°¡ ÀûÀýÇÑ ÁßÇÕ¿¡ ºÎÀûÀýÇÑ »óÅ¿¡ ÀÖÀ¸¸ç, 46.6%°¡ ±¤ Á¶»ç½Ã°£À» ¿¬ÀåÇÒ ÇÊ¿ä°¡ ÀÖ´Â °ÍÀ¸·Î µå·¯³ª, ±¤Á¶»ç±âÀÇ Àý¹Ý ÀÌ»óÀÌ ¼öº¹¹°ÀÇ ¼º°øÀûÀÎ ÁßÇÕÀ» À§Çؼ­´Â, ÁßÇսð£ÀÇ ¿¬ÀåÀ» ÇÊ¿ä·Î Çϰųª, ±â°èÀû °áÇÔÀ¸·Î Á¡°ËÀ» ÇÊ¿ä·Î ÇÏ´Â »óÅ¿¡ ÀÖ¾ú´Ù. À̹ø Á¶»ç·Î, ÇöÀç Ä¡°ú º´, ÀÇ¿ø¿¡¼­ »ç¿ëÁßÀÎ ±¤Á¶»ç±âÀÇ ºÎÇ°¼º´É°ú ±× °ü¸®¿¡ ¹®Á¦°¡ ÀÖÀ½À» ¾Ë ¼ö ÀÖ´Ù. ÀÌ·¯ÇÑ °á°ú´Â, ÃÖ±Ù¿¡ ÀÌ·ç¾îÁø ¿Ü±¹ÀÇ Á¶»ç¿¡¼­¿Í À¯»çÇÏ¿´´Ù. ±¤Á¶»ç±â¸¦ ÀÌ¿ëÇÑ ¼öº¹Ä¡·áÀÇ ¼º°ø°ú, ±¸ÀÔ´ç½Ã ¼öÁØÀÇ ÀûÀýÇÑ Ç°Áú(quality)À» À¯ÁöÇϱâ À§Çؼ­´Â, ±¤Á¶»ç±â °ü¸®¿Í ºÎÇ° ±³Ã¼¿¡ ´ëÇÑ ÀÓ»ó°¡µéÀÇ ÀÌÇØ°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î º¸ÀδÙ.

It is well known that numerous factors influence the light output of curing units, but many dentists are un aware that the output of their curing lights are inadequate. This study was conducted to evaluate the light in tensity of visible-light curing units in some private dental clinics and hospital dental clinics. In order to determine the maximum light intensity of the curing units, lamps, filters and fiber optic bundles, they were replaced with new ones and light intensity was remeasured. Light intensity was measured by employing a digital radiometer (EFOS model #8000, USA). Light intensity ranged in (below ; 17.8%, : 46.6%, above ; 35.6%). The replacement of the components increased the light intensity, with maximum increases of 94.8% for lamps, 82.3% for filters, 200.8% for fiber optics and 361.5% for all three parts. According to the manufacturer of radiometer, curing light is considered as unsuitable for use with a reading of above by the radiometer. Applying these criteria to the present study, 64.4% of the curing units required repair or replacement. The results of this study indicated that the light intensities of the curing units used in dental practice were lower than optimum level.

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Light intensity;Light curing units;Radiometer;Maintenance

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