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2´Ü°è Á¢ÂøÁ¦ÀÇ »ó¾ÆÁú °áÇÕ°­µµ¿¡ ´ëÇÑ Er:YAG ·¹ÀÌÀú Á¶»ç ¿µÇâ

Effect of Er:YAG lasing on the dentin bonding strength of two-step adhesives

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¼Ûº´Ãá ( Song Byeong-Choon ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
Á¶¿µ°ï ( Cho Young-Gon ) - Á¶¼±´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
ÀÌ¸í¼± ( Lee Myung-Seon ) - ¼­¿µ´ëÇб³ Ä¡À§»ý°ú

Abstract

¿¬±¸¸ñÀû: ÀÌ ¿¬±¸´Â »ó¾ÆÁú Ç¥¸é¿¡ Er:YAG ·¹ÀÌÀú¸¦ Á¶»çÇÏÁö ¾Ê´Â ±º, ·¹ÀÌÀú¸¦ Á¶»çÇÑ ±º, ·¹ÀÌÀú¸¦ Á¶»çÇÑ ÈÄ ºÎ°¡ÀûÀÎ »ê󸮸¦ ÇÑ ±ºÀ¸·Î ºÐ·ùÇÏ¿© 2´Ü°è ´ÜÀϺ´ ÀüºÎ½Ä Á¢Âø½Ã½ºÅÛ°ú ÀÚ°¡ºÎ½Ä ÇÁ¶óÀÌ¸Ó Á¢Âø½Ã½ºÅÛÀ» ÀÌ¿ëÇÏ¿© º¹ÇÕ·¹ÁøÀ» Á¢ÂøÇÏ¿´À» ¶§ ÀÌ·¯ÇÑ Ç¥¸é󸮰¡ º¹ÇÕ·¹ÁøÀÇ ¹Ì¼¼Àü´Ü °áÇÕ°­µµ¿Í °áÇÕ°è¸é¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºñ±³Çϱâ À§ÇÏ¿© ½ÃÇàÇÏ¿´´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: 32°³ÀÇ ¹ß°ÅµÈ ´ë±¸Ä¡ÀÇ ±³ÇÕ¸éÃø »ó¾ÆÁúÀ» ÀÌ¿ëÇÏ¿´°í, »ó¾ÆÁúÀÇ Ç¥¸é󸮴 1±º°ú 4±º¿¡¼­ °¢°¢ Àλê°ú ÀÚ°¡ºÎ½Ä ÇÁ¶óÀ̸ӷΠÇÏ¿´À¸¸ç, 2±º°ú 5±ºÀº Er:YAG ·¹ÀÌÀú·Î ¿¡ÄªÃ³¸®ÇÏ¿´°í, 3±º°ú 6±ºÀº ·¹ÀÌÀú·Î ¿¡ÄªÇÑ ÈÄ ´Ù½Ã °¢°¢ Àλê°ú ÀÚ°¡ºÎ½Ä ÇÁ¶óÀ̸ӷΠÇÏ¿´´Ù. 1±º, 2±º, 3±ºÀº Single Bond 2¿Í Z 250 (3M ESPE)À» ÀÌ¿ëÇÏ¿´°í, 4±º, 5±º, 6±ºÀº Clearfil SE Bond¿Í Clearfil AP-Z (Kuraray)À» ÀÌ¿ëÇÏ¿© »ó¾ÆÁú ¸é¿¡ Tygon tube¸¦ Á¢ÂøÇÏ¿´´Ù. °¢ ±ºÀÇ ¹Ì¼¼Àü´Ü °áÇÕ°­µµ¸¦ ÃøÁ¤ÇÑ ÈÄ Åë°è ó¸®ÇÏ¿´°í, ¶ÇÇÑ 6°³ÀÇ ½ÃÆí¿¡¼­ º¹ÇÕ·¹Áø°ú »ó¾ÆÁú °è¸éÀ» ÁÖ»çÀüÀÚÇö¹Ì°æÇÏ¿¡¼­ °üÂûÇÏ¿´´Ù.

°á°ú: Single Bond 2¸¦ »ç¿ëÇÑ ±º¿¡¼­ 2±ºÀÇ °áÇÕ°­µµ´Â 1±º°ú 3±ºº¸´Ù Åë°èÇÐÀûÀ¸·Î ³·°Ô ³ªÅ¸³µÀ¸¸ç, Clearfil SE Bond¸¦ »ç¿ëÇÑ ±º¿¡¼­ 4±º, 5±º, 6±ºÀÇ °áÇÕ°­µµ´Â °¢°¢ Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ ³ªÅ¸³»¾ú´Ù(p < 0.05). 2±º°ú 5±ºÀº ¾ÆÁÖ Âª°í °¡´Â ·¹ÁøÅ×±×°¡ °üÂûµÇ¾ú°í, 3±º°ú 6±ºÀº ±æ°í °¡´Â ·¹ÁøÅ×±×¿Í ·¹ÁøÅ×±×ÀÇ ÃøÁö°¡ °üÂûµÇ¾ú´Ù. °á·Ð: ·¹ÀÌÀú·Î ¿¡Äª ó¸®ÇÑ »ó¾ÆÁú¿¡ ´ëÇÑ ºÎ°¡ÀûÀÎ »ê 󸮳ª ÀÚ°¡ºÎ½Ä ÇÁ¶óÀ̸ÓÀÇ Ã³¸®´Â »ó¾ÆÁúÀÇ Á¢Âø·ÂÀ» Çâ»ó½ÃÄ×´Ù.

Objectives: The purpose of this study was to compare the microshear bond strength (SBS) and bonding interfaces of two-step total-etching and self-etching adhesive systems to three etch types of dentin either the acid etched, laser etched or laser and acid etched.

Materials and Methods: The occlusal dentinal surfaces of thirty human molars were used. They were divided into six groups: group 1, 37% + Single Bond 2 (3M ESPE); group 2, Er:YAG laser (KEY Laser 3, KaVo) + Single Bond 2; group 3, Er:YAG laser + 37% + Single Bond 2; group 4, Clearfil SE Primer + Bond (Kuraray); group 5, Er:YAG laser + Clearfil SE Bond; group 6, Er:YAG laser + Clearfil SE Primer + Bond. The samples were subjected to SBS testing 24 hr after bonding. Also scanning microscopic evaluations were made on the resin-dentin interfaces of six specimens.

Results: The SBS of group 2 was significantly lower than that of groups 1 and 3 in Single Bond 2 (p < 0.05). There were significant differences among the uSBS of groups 4, 5, and 6 in Clearfil SE Bond (p < 0.05). Very short and slender resin tags were observed in groups 2 and 5. Long and slender resin tags and lateral branches of tags were observed in groups 3 and 6. Conclusions: Treatment of dentin surface using phosphoric acid or self-etching primer improved the adhesion of Er:YAG lased dentin.

Å°¿öµå

°áÇÕ°è¸é; ¹Ì¼¼Àü´Ü °áÇÕ°­µµ; 2´Ü°è Á¢ÂøÁ¦; Er:YAG ·¹ÀÌÀú Á¶»ç
Bonding interfaces; Er:YAG lasing; Microshear bond strength; Two-step adhesives

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