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Surface roughness analysis of ceramic bracket slots using atomic force microscope

Korean Journal of Orthodontics 2010³â 40±Ç 5È£ p.294 ~ 303
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¹Ú±âÈ£ ( Park Ki-Ho ) - °æÈñ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±³Á¤Çб³½Ç
À±ÇöÁÖ ( Yoon Hyun-Joo ) - °æÈñ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±³Á¤Çб³½Ç
±è¼öÁ¤ ( Kim Su-Jung ) - °æÈñ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±³Á¤Çб³½Ç
À̱âÀÚ ( Lee Gi-Ja ) - °æÈñ´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø ÀÇ°øÇб³½Ç
¹ÚÇå±¹ ( Park Hun-Kuk ) - °æÈñ´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø ÀÇ°øÇб³½Ç
¹Ú¿µ±¹ ( Park Young-Guk ) - °æÈñ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±³Á¤Çб³½Ç

Abstract

±³Á¤¿ë ºê¶óÄÏ°ú °­¼± »çÀÌÀÇ ¸¶ÂûÀúÇ׷¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ¿ä¼Òµé Áß ºê¶óÄÏ ½½·ÔÀÇ Ç¥¸éÁ¶µµ¿¡ ´ëÇÑ ¿¬±¸°¡ ±×µ¿¾È ¸¹ÀÌ ½ÃÇàµÇ¾î ¿Ô´Âµ¥ ±âÁ¸ ¿¬±¸´Â ÁÖ·Î ÁÖ»çÀüÀÚÇö¹Ì°æ(SEM)À̳ª Prophylometer¸¦ »ç¿ëÇÏ¿© ÀÌ·ç¾îÁ³´Ù. ÀÌ ¿¬±¸´Â ¿øÀÚÇö¹Ì°æ(AFM)À» »ç¿ëÇÏ¿© ´Ù¼¸ Á¾·ùÀÇ ºê¶óÄÏ ½½·ÔÀÇ Ç¥¸éÁ¶µµ¸¦ Á¤·®ÀûÀ¸·Î ÃøÁ¤ÇÏ¿© ¼¼¶ó¹Í ºê¶óÄÏÀÌ ½ºÅ×Àθ®½º ½ºÆ¿ ºê¶óÄϺ¸´Ù ´õ °ÅÄ¥°í ´Ù°áÁ¤ ¾Ë·ç¹Ì³ª ºê¶óÄÏÀÌ ´Ü°áÁ¤ ¾Ë·ç¹Ì³ª ºê¶óÄϺ¸´Ù ´õ °ÅÄ£Áö ±Ô¸íÇϴµ¥ ¸ñÀûÀÌ ÀÖ´Ù. ´ëÁ¶±ºÀÎ ½ºÅ×Àθ®½º ½ºÆ¿ºê¶óÄÏ(Succes¨Þ)°ú µÎ Á¾·ùÀÇ ´Ü°áÁ¤ ¾Ë·ç¹Ì³ª(Inspire Ice¨Þ, Perfect¨Þ)¿Í µÎ Á¾·ùÀÇ ´Ù°áÁ¤ ¾Ë·ç¹Ì³ª(Crystalline V¨Þ, Invu¨Þ)¸¦ ½½¶óÀÌµå ±Û¶ó½º¿¡ Á¢ÂøÇÏ°í ½½·ÔÀ» ³ëÃâ½ÃÅ°±â À§ÇØ Ä¡°ú¿ë ÇÏÀ̽ºÇǵå ÇÚµåÇǽº¿Í ¼¤ÆÛ¹ö¸¦ ÀÌ¿ëÇØ À®À» ¿¬¸¶ÇÏ¿´´Ù. ¿øÀÚÇö¹Ì°æ À̹ÌÁö´Â Nanostation IITM¸¦ »ç¿ëÇÏ¿© °üÂûÇÏ¿´´Ù. Sa, Sq, Sz ¸ðµÎ Invu¨Þ¿Í Inspire Ice¨Þ´Â ´ëÁ¶±ºÀÎ Succes¨Þ¿Í À¯ÀǹÌÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸¸ç Perfect¨Þ¿Í Crystalline V¨Þ´Â Succes¨Þº¸´Ù ÄÇ´Ù. Perfect¨Þ¿Í Crystalline V¨Þ »çÀÌ¿¡¼­´Â Sa, Sq, Sz ¸ðµÎ À¯ÀǹÌÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸¸ç Invu¨Þ¿Í Inspire Ice¨Þ »çÀÌ¿¡¼­µµ Sa, Sq, Sz ¸ðµÎ À¯ÀǹÌÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù. µû¶ó¼­, ´ëÁ¶±ºÀÎ Succes¨Þ¿Í ´Ü°áÁ¤ ºê¶óÄÏÀÎ Inspire Ice¨Þ, ´Ù°áÁ¤ ºê¶óÄÏÀÎ Invu¨Þ°¡ ³·Àº Á¶µµÀÇ ½½·Ô Ç¥¸éÀ» °¡Áö°í ´Ù°áÁ¤ ºê¶óÄÏÀÎ CrystallineV¨Þ¿Í ´Ü°áÁ¤ ºê¶óÄÏÀÎ Perfect¨Þ°¡ °ÅÄ£ ½½·Ô Ç¥¸éÀ» °¡Áø °ÍÀ¸·Î ÆǴܵȴÙ. µû¶ó¼­, À¯»çÇÑ ÀçÁúÀÇ ºê¶óÄÏÀ̶óµµ
Á¦Á¶»ç¿¡ µû¶ó ´Ù¾çÇÑ ½½·Ô Ç¥¸éÁ¶µµ¸¦ ³ªÅ¸³½´Ù°í ÇÒ ¼ö ÀÖ´Ù.

Objective: This study was designed to measure the surface roughness at the slot floor of various ceramic
brackets.

Methods: One kind of stainless steel bracket (Succes¨Þ), two kinds of monocrystalline brackets (Inspire Ice¨Þ, Perfect¨Þ) and two kinds of polycrystalline brackets (Crystalline V¨Þ, Invu¨Þ) were examined. Atomic force microscopy (AFM) was used to measure the surface roughness of each bracket. Data acquisition and processing were performed using SPIPTM.

Results: The differences in values of Sa, Sq, and Sz in Invu¨Þ and Inspire Ice¨Þ were not statistically different from the control group Succes¨Þ. The values of Sa, Sq, and Sz of Perfect¨Þ and Crystalline V¨Þ were greater than those of Succes¨Þ. Differences of all the Sa, Sq, and Sz values between Perfect¨Þ and Crystalline V¨Þ were not statistically significant.

Conclusions: It is concluded that the slot surfaces of Succes¨Þ, Inspire Ice¨Þ, and Invu¨Þ were smooth compared to those of Crystalline V¨Þ and Perfect¨Þ.

Å°¿öµå

¿øÀÚÇö¹Ì°æ; Ç¥¸éÁ¶µµ; ºê¶óÄÏ ½½·Ô
AFM; Surface roughness; Bracket slot

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