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THE STUDY ON SHEAR BOND STRENGTH OF VARIOUS DENTIN BONDING SYSTEMS IN PRIMARY DENTIN

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°­¼±Èñ ( Kang Sun-Hee ) - ¿ø±¤´ëÇб³ ÀÇ°ú´ëÇÐ ¼Ò¾Æ°úÇб³½Ç
±è´ë¾÷ ( Kim Dae-Eop ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
À̱¤Èñ ( Lee Kwang-Hee ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ

Abstract

¼Ò¾ÆȯÀÚÀÇ ¼öº¹Ä¡·á¿¡¼­ ½Ã¼ú½Ã°£°ú ½Ã¼ú°úÁ¤À» ÁÙÀÌ´Â °ÍÀº Áß¿äÇÑ Á¡ÀÌ´Ù. º¹ÇÕ·¹ÁøÀº ¹°¼ºÀÇ Áõ°¡·Î ¿µ±¸Ä¡, À¯Ä¡ ÀüÄ¡ºÎ ½É¹Ì¼öº¹Àç·Î½á »Ó¸¸ ¾Æ´Ï¶ó ±¸Ä¡ºÎ ¼öº¹¿¡µµ ¸¹ÀÌ ¾²ÀÌ°í ÀÖ´Ù. ÃÖ±Ù¿¡ °³¹ßµÈ 7¼¼´ë »ó¾ÆÁú °áÇÕÁ¦´Â ±âÁ¸ÀÇ º¹ÇÕ·¹ÁøÀ» Ä¡¸é¿¡ ºÎÂøÇϱâ À§ÇØ ÇÊ¿äÇß´ø »êºÎ½Ä, ÇÁ¶óÀ̹Ö, Á¢ÂøÁ¦ µµÆ÷ÀÇ º¹ÀâÇÑ °úÁ¤À» ÇѹøÀÇ Ã³¸®·Î ´Ü¼øÈ­ÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­´Â À¯Ä¡ »ó¾ÆÁú¿¡¼­ 7¼¼´ë »ó¾ÆÁú °áÇÕÁ¦ÀÇ °áÇÕ·ÂÀ» ±âÁ¸¿¡ »ç¿ëµÇ°í ÀÖ´Â ¿©·¯ °áÇÕÁ¦ÀÇ °áÇշ°ú ºñ±³ÇÏ¿´´Ù.

1, 2, 3, 4±ºÀº °¢°¢ 4, 5, 6, 7¼¼´ë »ó¾ÆÁú °áÇÕÁ¦¸¦ »ç¿ëÇÏ¿´´Ù. À¯Ä¡ »ó¾ÆÁúÀ» ³ëÃâ½ÃÅ°°í ±º¿¡ µû¶ó »ó¾ÆÁú ¸éÀ» ó¸®ÇÑ ÈÄ¿¡ Á÷°æ 2.5mm, ³ôÀÌ 2.0mmÀÇ ÁÖÇüÀ» ÀÌ¿ëÇÏ¿© º¹ÇÕ·¹ÁøÀ» Á¢Âø½ÃÅ°°í ¿­¼øȯÀ» ½ÃÇàÇÑ ´ÙÀ½ Àü´Ü°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.

1. 5¼¼´ë »ó¾ÆÁú °áÇÕÁ¦ ÀÎ Clearfil SE Bond°¡ °¡Àå ³ôÀº Àü´Ü°áÇÕ°­µµÀÎ 27.87¡¾5.33 MPa¸¦ º¸¿´´Ù. ÀÌ°ÍÀº 4, 6, 7¼¼´ë¿Í ºñ±³ÇßÀ» ¶§ Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÏ¿´´Ù.

2. 4¼¼´ë »ó¾ÆÁú °áÇÕÁ¦ÀÇ Àü´Ü°áÇÕ°­µµ´Â 20.11¡¾5.73 MPa·Î 6, 7¼¼´ëº¸´Ù´Â ¾à°£ ³ô°Ô ³ªÅ¸³µÁö¸¸ Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ´Â º¸ÀÌÁö ¾Ê¾Ò´Ù.

3. 6, 7¼¼´ë »ó¾ÆÁú °áÇÕÁ¦ÀÇ Àü´Ü°áÇÕ°­µµ´Â À¯»çÇÏ°Ô ³ªÅ¸³µ´Ù.

It is important to reduce chair time and procedure in restorative treatment for children. Composite resin is not only used in esthetic restoration of anterior teeth but also posterior teeth by its improved physical property. The 7th generation dentin bonding system was recently developed in order to simplify three steps which is needed to bond composite resin to tooth surface-etchant, primer, adhesive. We compared shear bond strengths of 4, 5, 6, 7th generations dentin bonding systems.

The primary dentin was pretreated with 4, 5, 6, 7th generation dentin bonding systems. Then composite resin was cured to the specimen using molds 2.5mm in diameter and 2mm in height. Thermocycling was performed and shear bond strength was finally measured.

The results were as follow:

1. The mean values of shear bond strengths in 5th generation dentin bonding system(group 2) were greater than those of 4, 6, 7th generation dentin bonding system(group 1, 3, 4). The differences were statistically significant.

2. The mean values of shear bond strengths in 4th generation dentin bonding system(group 2) were greater than those of 6, 7th generation dentin bonding system(group 1, 3, 4). But, the differences were not statistically significant.

3. Between the mean values of shear bond strengths in 6, 7th generation dentin bonding system(group 3, 4) were similar.

Å°¿öµå

7¼¼´ë »ó¾ÆÁú °áÇÕÁ¦;Àü´Ü°áÇÕ°­µµ;À¯Ä¡ »ó¾ÆÁú;º¹ÇÕ·¹Áø
7th generation dentin bonding system;Shear bond strength;Primary dentin

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