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THE COMPARATIVE STUDY ON THE SHEARBOND STRENGTH AND THE MORPHOLOGY OF RESIN-DENTIN INTERFACE BONDED BY SEVERAL DENTINAL BONDING SYSTEM

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Abstract

°á·Ð
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ÇÕºÎÀÇ ÇüŸ¦ °¢°¢ Àü´Ü°­µµ ÃøÁ¤°ú ±¤ÇÐÇö¹Ì°æ ¹× ÁÖ»ç ÀüÀÚ Çö¹Ì°æ °üÂûÀ» ÅëÇÏ¿© ºñ±³
ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. Àü´Ü °­µµ°¡ ³ô°Ô ³ªÅ¸³­ ±ºÀÇ °æ¿ì°¡ ³·Àº ±º¿¡ ºñÇØ °áÇÕºÎÀÇ Á¶Á÷ÇÐÀû °üÂû¿¡¼­µµ
º¸´Ù ¿ì¼öÇÑ hybrid layer¿Í resin tagÀÇ Çü¼ºÀÌ °üÂûµÇ¾î ¼­·ÎÀÇ »ó°ü °ü°è°¡ ÀÔÁõµÇ¾ú´Ù.
2. Gluma ±ºÀ» Á¦¿ÜÇÑ µÎ°¡Áö ½ÇÇèÀç·á¿¡¼­´Â À¯Ä¡¿Í ¿µ±¸Ä¡°£ÀÇ À¯ÀÇÇÑ Àü´Ü°­µµÀÇ Â÷ÀÌ
¸¦ ¹ß°ßÇÒ ¼ö ¾ø¾úÀ¸¸ç, ¶ÇÇÑ À̵éÀÇ °áÇպΠ°üÂû¿¡¼­µµ °üÁÖ»ó¾ÆÁúÀÇ »êºÎ½ÄÀÌ ´Ù¼Ò ¹Ì¾à
ÇÑ ¾ç»óÀ» Á¦¿ÜÇÏ°í´Â ´ëü·Î ¿µ±¸Ä¡¿Í À¯»çÇÏ¿´´ø ¹Ù, À¯Ä¡ÀÇ ¼öº¹¼ú½Ä¿¡¼­µµ »ó¾ÆÁú °áÇÕ
Á¦ÀÇ ½Å·Ú¼º ÀÖ´Â »ç¿ëÀÌ °¡´ÉÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.
#ÃÊ·Ï#
The purpose of this study was to evaluate the shearbond strength and resin-dentin
interface of three different dentinal bonding systems in primary and permanent teeth.
Thirty extracted human primary molars and premolars, which were non-carious and free
of obvious defect, were selected for this study. All specimens were divided into six
groups with two groups allocated for each of the three dentinal bonding
system(All-bond 2, Scotchbond Multi-Purpose, Gluma bonding system). After completion
of bonding composite to denin using each tested dentin bonding system, bond strength
measurement and histological observation were performed. The results are as follows :
1. All-bond 2 and Scotchbond Multi-Purpose, A good quality hybrid layer was
identified, the morphology of which could be equated with the zone of H-E and
Brown-Brenn staining. In Gluma bonding system, hybrid layer was very thin, and
separated from the solid polymer.
2. All-bond 2 had the highest mean shearbond, strength, followed by Scotchbond
Multi-Purpose and Gluma bonding system in both primary and permanent teeth. There
was no statistically significant difference between All-bond 2 and Scotchbond
Multi-Purpose. Statistically significant difference could be found between Gluma bonding
system and the other two groups(p<0.05).
3. The fracture patterns observed were mainly the mixture of adhesive failure and
dentin dettachment pattern in All-bond 2 and Scotchbond Multi-Purpose while adhesive
failure prevailed in Gluma bonding system.

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