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Smart Chromatic Technology ±â¹Ý º¹ÇÕ ·¹ÁøÀÇ Æú¸®½Ì ÀÌÈÄ Ç¥¸é °ÅÄ¥±â ¹× ¿ì½Ä¿ø¼º ¹Ì»ý¹° ºÎÂø

Surface Roughness and Cariogenic Microbial Adhesion after Polishing of Smart Chromatic Technology-based Composite Resin

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±èÇؼ۠( Kim Hae-Song ) - Gangneung-Wonju National University College of Dentistry Department of Pediatric Dentistry
ÀÌÁÖÇö ( Lee Ju-Hyun ) - Gangneung-Wonju National University College of Dentistry Department of Pediatric Dentistry
±èÇØ´Ï ( Kim Hae-Ni ) - Gangneung-Wonju National University College of Dentistry Department of Pediatric Dentistry
¹ÚÈ£¿ø ( Park Ho-Won ) - Gangneung-Wonju National University College of Dentistry Department of Pediatric Dentistry

Abstract

º» ¿¬±¸´Â ¡°Smart chromatic technology¡±¸¦ ±â¹ÝÀ¸·Î »õ·Ó°Ô °³¹ßµÈ º¹ÇÕ ·¹ÁøÀÎ OmnichromaÀÇ Æú¸®½Ì ÀÌÈÄ Ç¥¸é °ÅÄ¥±â¿Í ¿ì½Ä¿ø¼º ¹Ì»ý¹° ºÎÂøÀ» ¼­·Î ´Ù¸¥ ÇÊ·¯ Á¶¼ºÀ» °¡Áø ±âÁ¸ÀÇ 2°¡Áö º¹ÇÕ ·¹Áø°ú ºñ±³ Æò°¡ÇÏ¿´´Ù. ¼¼ Á¾·ùÀÇ º¹ÇÕ ·¹Áø: Omnichroma (nano-spherical), Filtek Z350XT (nano-fill), Tetric N-Ceram (nanohybrid)À» »ç¿ëÇÏ¿© ÇÑ ±º ´ç 48°³, ÃÑ 144°³ÀÇ ½ÃÆíÀ» µð½ºÅ© ÇüÅ·ΠÁ¦ÀÛÇÑ ÈÄ, ÅÖ½ºÅÙ Ä«¹ÙÀÌµå ¹ö¸¦ ÀÌ¿ëÇÏ¿© ÇÇ´Ï½Ì Ã³¸®ÇÏ¿´´Ù. ÀÌÈÄ ´ëÁ¶±º°ú SofLex µð½ºÅ©, PoGo ¹ö¿¡ µû¸¥ 3°¡Áö ÇÏÀ§±ºÀ¸·Î ºÐ·ùÇÏ¿´´Ù. Ç¥¸é °üÂûÀº ¿øÀÚ Èû Çö¹Ì°æ°ú ÁÖ»ç ÀüÀÚ Çö¹Ì°æÀ» ÀÌ¿ëÇÏ¿© Á¤·®Àû, Á¤¼ºÀûÀ¸·Î ºÐ¼®ÇÏ¿´´Ù. ¿ì½Ä¿ø¼º ¹Ì»ý¹° ºÎÂøÀº Streptococcus mutans ¸¦ ½ÃÆí¿¡ 24½Ã°£ ¹è¾ç ÈÄ Ç¥¸é¿¡ ºÎÂøÇÑ Áý¶ô Çü¼º ´ÜÀ§¸¦ ÃøÁ¤ÇÏ¿© Æò°¡ÇÏ¿´´Ù. Omnichroma´Â ÇÇ´Ï½Ì Ã³¸®¸¸À¸·Îµµ ¸Å²ô·¯¿î Ç¥¸éÀ» ¾òÀ» ¼ö ÀÖ¾úÀ¸¸ç, ´Ù¸¥ µÎ °¡Áö º¹ÇÕ ·¹Áøº¸´Ù À¯ÀÇÇÏ°Ô ³·Àº Ç¥¸é °ÅÄ¥±â¸¦ º¸¿´´Ù. ±×·¯³ª, Æú¸®½Ì ÈÄ¿¡´Â ¿¬¸¶ ¹æ¹ý°ú »ó°ü¾øÀÌ ¼¼ Á¾·ùÀÇ º¹ÇÕ ·¹ÁøÀÇ Ç¥¸é °ÅÄ¥±â »çÀÌ¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ¼¼ Á¾·ùÀǺ¹ÇÕ ·¹Áø ¸ðµÎ¿¡¼­ SofLex ÇÏÀ§±ºÀº ´ëÁ¶ ÇÏÀ§±º¿¡ ºñÇØ ÈξÀ ¸Å²ô·¯¿î Ç¥¸éÀ» ³ªÅ¸³Â´Ù. ±×·¯³ª, Tetric N-CeramÀ» Á¦¿ÜÇÑ ´Ù¸¥ µÎ º¹ÇÕ ·¹Áø¿¡¼­ ´ëÁ¶ ÇÏÀ§±º°ú PoGo ÇÏÀ§±ºÀÇ Ç¥¸é °ÅÄ¥±â´Â Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ¹Ì»ý¹° ºÎÂøÀº ¼¼ Á¾·ùÀÇ º¹ÇÕ ·¹Áø °¢°¢ÀÇ ÇÏÀ§±º »çÀÌ¿¡¼­ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ±×·¯³ª, Omnichroma´Â ´Ù¸¥ µÎ Á¾·ùÀÇ º¹ÇÕ ·¹Áø¿¡ ºñÇØ Àü¹ÝÀûÀ¸·Î ´õ ³ôÀº ¹Ì»ý¹° ºÎÂøÀ» º¸¿´´Ù.

This study compared the surface roughness and microbial adhesion characteristics of Omnichroma, a novel composite resin developed using ¡°smart chromatic technology¡±, with those of two other conventional composite resins with different filler compositions. A total of 144 specimens were fabricated using 3 types of composite resins: Omnichroma (nano-spherical), Filtek Z350XT (nanofill), and Tetric N-Ceram (nanohybrid) and, divided into 3 groups of 48. Finishing was performed using tungsten carbide burs. Specimens were then divided into 3 subgroups using different polishing methods: Control, SofLex, and PoGo. Surface roughness was analyzed quantitatively and qualitatively using an atomic force microscope and a scanning electron microscope. Microbial adhesion was assessed by culturing Streptococcus mutans on the specimens for 24 hours and then measuring colony-forming units attached to the upper surface. The surface roughness (Ra) of Omnichroma was 0.123 ¥ìm after finishing, and it exhibited a smooth surface compared to the other resins. However, after polishing, there were no significant differences in the surface roughness between the three composite groups, regardless of the polishing methods.
The surfaces of the Control subgroups were significantly rougher than those of the SofLex subgroups in all 3 composite groups. However, except for Tetric N-Ceram, there were no significant differences between the Control and PoGo subgroups in the other composite groups. Microbial adhesion assessment showed no significant differences between any of the 3 composite resin subgroups; however, Omnichroma exhibited higher microbial adhesion than the other two composites. No significant correlation was observed between surface roughness and microbial adhesion.

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Smart chromatic technology; Omnichroma; Structural color

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