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EFFECT OF APPLICATION METHODS OF A SELF-ETCHING PRIMER ADHESIVE SYSTEM ON ENAMEL BOND STRENGTH

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¹ÚÀ籸 ( Park Jae-Gu ) - °æÈñ´ëÇб³ ´ëÇпø Ä¡ÀÇÇаú Ä¡°úº¸Á¸Çб³½Ç
Á¶±ÇÇÑ ( Cho Kwon-Hwan ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
Á¶¿µ°ï ( Cho Young-Gon ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç

Abstract

ÀÌ ¿¬±¸´Â Clearfil SE Bond¸¦ °ÅÄ£ ¹ý¶ûÁú Ç¥¸é¿¡ Àû¿ëÇÒ ¶§, ÀÚ°¡ºÎ½Ä ÇÁ¶óÀ̸ÓÀÇ Àû¿ë¹æ½Ä (´Éµ¿ÀûÀÎ ¶Ç´Â ¼öµ¿ÀûÀÎ)°ú Á¢Âø·¹ÁøÀÇ µµÆ÷ȸ¼ö (1ȸ ¶Ç´Â 2ȸ)°¡ ¹ý¶ûÁúÀÇ °áÇÕ°­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸±â À§ÇÏ¿© ½ÃÇàÇÏ¿´´Ù. 16°³ÀÇ ¹ß°ÅµÈ ´ë±¸Ä¡ Ä¡°üÀÇ Çù¸éÀ̳ª ¼³¸é¿¡¼­ ¹ý¶ûÁú ÀýÆíÀ» ¸¸µé¾î 4°³ÀÇ ±ºÀ¸·Î ¹èÁ¤ÇÑ ´ÙÀ½, 1±ºÀº ÇÁ¶óÀ̸Ӹ¦ ¼öµ¿ÀûÀ¸·Î Àû¿ëÇÑ ÈÄ Á¢Âø·¹ÁøÀ» 1ȸ µµÆ÷ÇÏ¿´°í, 2±ºÀº ÇÁ¶óÀ̸Ӹ¦ ´Éµ¿ÀûÀ¸·Î Àû¿ëÇÑ ÈÄ Á¢Âø·¹ÁøÀ» 1ȸ µµÆ÷ÇÏ¿´°í, 3±ºÀº ÇÁ¶óÀ̸Ӹ¦ ¼öµ¿ÀûÀ¸·Î Àû¿ëÇÑ ÈÄ Á¢Âø·¹ÁøÀ» 2ȸ µµÆ÷ÇÏ¿´°í, 4±ºÀº ÇÁ¶óÀ̸Ӹ¦ ´Éµ¿ÀûÀ¸·Î Àû¿ëÇÑ ÈÄ Á¢Âø·¹ÁøÀ» 2ȸ µµÆ÷ÇÏ¿´´Ù. Àû¿ëµÈ Á¢Âø·¹ÁøÀ» 10ÃÊ°£ ±¤Á¶»çÇÑ ÈÄ, ¹ý¶ûÁú Ç¥¸é¿¡ 2-3°³ÀÇ Tygon tube¸¦ À§Ä¡½ÃÅ°°í Clearfil AP-X¸¦ ÃæÀüÇÏ°í 40ÃÊ°£ ±¤Á¶»ç ÇÏ¿´´Ù. Universal testing machineÀ» ÀÌ¿ëÇÏ¿© ¹ý¶ûÁú Ç¥¸é¿¡¼­ º¹ÇÕ·¹ÁøÀÌ ÆÄÀýµÉ ±îÁö ºÐ´ç 1.0 mmÀÇ cross-head speed·Î Àü´ÜÇÏÁßÀ» °¡ÇÏ°í Åë°èÀûÀ¸·Î ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù. °ÅÄ£ ¹ý¶ûÁú¿¡ ´ëÇÑ Clearfil SE BondÀÇ ¹Ì¼¼Àü´Ü °áÇÕ°­µµ´Â ÀÚ°¡ºÎ½Ä ÇÁ¶óÀ̸ÓÀÇ Àû¿ë¹æ½Ä º¸´Ù´Â Á¢Âø·¹ÁøÀÇ µµÆ÷ȸ¼ö¿¡ ÀÇÇØ Áõ°¡ÇÒ ¼ö ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù.

The purpose of this study was to evaluate the effect of passive or active application of primer and coat times of bond on the shear bond strength when a self-etching primer adhesive (Clearfil SE Bond) was applied to enamel surface. Crowns of sixteen human molars were selected. Buccal and lingual enamels of crowns were partially exposed and slabs of 1.2 mm thick were made. They were divided into one of four equal groups (n = 8). Group 1: passive application of Primer and 1 coat of Bond, Group 2: active application of Primer and 1 coat of Bond, Group 3: passive application of Primer and 2 coats of Bond, Group 4: active application of Primer and 2 coats of Bond. Clearfil AP-X was bonded to enamel suface of each group using Tygon tubes. The bonded specimens were subjected to microshear bond strength (uSBS) testing with a crosshead speed of 1 mm/min. The results of this study were as follows; 1. The uSBS of Group 1 was the lowest among groups and the uSBS of Group 4 was the highest. 2. There was not statistically significant interaction between enamel uSBS by application method of Primer and coat time of Bond (p > 0.05). 3. There was not statistically significant difference between enamel uSBS by passive and active application of Primer (p > 0.05). 4. There was statistically significant difference between enamel uSBS by one- and two-coat of Bond (p < 0.05).

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Self-etching primer adhesive;Passive or active application of primer;Coat times of bond;Enamel bond strength

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