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A testing methodology for suck-back behavior of high-speed air-turbine dental handpiece

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Àü¿µÁØ ( Quan Ying-Jun ) - µ¿±¹´ëÇб³ °ø°ú´ëÇÐ ±â°è·Îº¿¿¡³ÊÁö°øÇаú
ÀÓÁß¿¬ ( Lim Joong-Yeon ) - µ¿±¹´ëÇб³ °ø°ú´ëÇÐ ±â°è·Îº¿¿¡³ÊÁö°øÇаú
±è°æ³² ( Kim Kyoung-Nam ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú»ýüÀç·á°øÇб³½Ç
±è¾ç¼ö ( Kim Yang-Soo ) - (ÁÖ)µÎ³ª¹Ì½ºµ§Å»

Abstract

Ä¡°ú¿ë °í¼Ó ¿¡¾îÅͺó ÇÚµåÇǽº´Â ¾ÐÃà°ø±â¸¦ ÀÌ¿ëÇÏ¿© ÇÚµåÇǽº Çìµå ³»ºÎÀÇ ÀÓÆç·¯¸¦ ±¸µ¿½ÃÅ°´Â Ä¡¾ÆÀý»è¿¡ »ç¿ëµÇ´Â Ä¡°ú¿ë ÀÇ·á±â±âÀÌ´Ù. ¾ÐÃà°ø±âÀÇ À¯µ¿Æ¯¼º¿¡ µû¸¥ ¾Ð·Â º¯È­·Î ÀÎÇÏ¿© °í¼Ó Ä¡°ú¿ë ¿¡¾îÅͺó ÇÚµåÇǽº´Â »ç¿ë Áß ±âü ÈíÀÔ Çö»óÀÌ ¹ß»ýÇϴµ¥ ÀÌ·± Çö»óÀ» ¿¡¾îÅͺó ÇÚµåÇǽºÀÇ suck-back Çö»óÀ̶ó°í ÇÑ´Ù. Suck-back Çö»ó ¶§¹®¿¡ Ä¡·á ½Ã ȯÀÚ ±¸°­ ³»ÀÇ Ç÷¾×, ¹ÚÅ׸®¾Æ µî À¯Çع°ÁúÀÌ ÇÚµåÇǽºÀÇ ³»ºÎ·Î ÈíÀԵǴµ¥ Ä¡°ú¿ë ¿¡¾îƼºó ÇÚµåÇǽº´Â ÀÏȸ¿ë ÀÇ·á±â±â°¡ ¾Æ´Ï¹Ç·Î ¿©·¯ ȯÀÚµéÇÑÅ× »ç¿ëµÉ ¶§ ¼³·É ¼Òµ¶ÇÏ´õ¶óµµ ±³Â÷°¨¿°(cross-infection)ÀÇ À§ÇèÀÌ ¹ß»ýÇÏ°Ô µÈ´Ù. ÇÏÁö¸¸ suck-back Çö»ó¿¡ ´ëÇØ Æò°¡ÇÏ´Â ¿¬±¸°¡ ¾ÆÁ÷ ¸¹ÀÌ ºÎÁ·ÇÑ »óÅÂÀÌ´Ù. ¿¬±¸¿¡¼­´Â suck-backÀ» ¹æÁöÇÒ ¼ö ÀÖ´Â ±â´ÉÀ¸·Î ¼³°èµÈ »ó¿ëÈ­ µÈ 5°³ Á¦Ç°ÀÇ ÇÚµåÇǽº¿¡ ´ëÇØ Æ¯º°È÷ Á¦ÀÛµÈ ÃøÁ¤ ÀåÄ¡¸¦ ÀÌ¿ëÇÏ¿© suck-back ¼º´ÉÀ» Æò°¡ÇÏ¿´´Ù. ½ÇÇèÀº ÃøÁ¤ÇÏ·Á´Â 5»ç Á¦Ç°ÀÇ ±¸µ¿ ½Ã ÃÖ´ë ¾Ð·Â, Á¤Áö ¼ø°£ÀÇ ÃÖ¼Ò ¾Ð·ÂÀ» ÃøÁ¤ÇÏ°í suck-back Çö»óÀÌ Áö¼ÓµÇ´Â ½Ã°£À» ÃøÁ¤ÇÏ¿´´Ù. ½ÇÇè °á°ú A»ç Á¦Ç°Àº ÃÖ¼Ò ¾Ð·ÂÀÌ 0 bar·Î½á suck-back Çö»óÀÌ ¹ß»ýÇÏÁö ¾Ê¾Ò´Ù. ¹Ý¸é ±âŸ 4»çÀÇ Á¦Ç°Àº suck-back Çö»óÀÌ ¹ß»ýÇÏ¿´´Âµ¥ ±× Áß B»ç Á¦Ç°Àº Æò±Õ°ª -0.00bar(-0.01barºÎÅÍ 0bar »çÀÌÀÇ °ª), E»ç Á¦Ç°Àº -0.01(0)bar, C»ç Á¦Ç°Àº -0.019(0.003)bar, D»ç Á¦Ç°Àº -0.04(0)barÀÇ °á°ú¸¦ º¸¿´´Ù. ¶ÇÇÑ suck-back Çö»óÀÇ Áö¼Ó ½Ã°£Àº B»ç Á¦Ç°ÀÌ 1.83ÃÊ·Î °¡Àå ¿À·¡ À¯ÁöµÇ¾úÀ¸¸ç ±× ´ÙÀ½À¸·Î D»ç Á¦Ç°ÀÌ 1.82ÃÊ, E»ç Á¦Ç°Àº 1.56ÃÊ, C»ç Á¦Ç°Àº 1.30ÃÊ, ±×¸®°í A»ç Á¦Ç°Àº 0ÃÊ·Î °¡Àå ª¾Ò´Ù. ½ÇÇè °á°ú º» ¿¬±¸¿¡¼­ °í¾ÈÇÑ ¿¡¾îÅͺó ÇÚµåÇǽºÀÇ suck-back Çö»ó ½ÃÇè ¹æ¹ýÀº Á¤·®ÀûÀ¸·Î ÃøÁ¤ÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î »ç·áµÇ¾ú´Ù.

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Suck-back; High-speed; air-turbine dental handpiece; Cross-infection; compressed air

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