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THE PULPAL RESPONSE TO ACID ETCHING ON DENTIN SURFACE AND THE BONDING STRENGTH OF COMPOSITE RESIN TO ACID ETCHED DENTIN SURFACE

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Abstract

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»ó¾ÆÁú »êºÎ½ÄÀÌ Ä¡¼ö¿¡ ¹ÌÄ¡´Â ¿µÇâ°ú ·¹ÁøÀÇ ¾ÈÀå°áÇÕ°­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» °üÂûÇϱâ À§
ÇØ ¼º°ß(3¸¶¸®)°ú Á¤»óÅ»¶ôµÈ À¯±¸Ä¡(36°³)¸¦ ´ë»óÀ¸·Î ÇÏ¿© Ä¡¼ö¹ÝÀÀÀ» °üÂûÇϱâ À§ÇØ ¼º
°ßÀÇ Ä¡¾Æ¿¡ 5±Þ¿Íµ¿À» Çü¼ºÈÄ 37% phosphoric acid·Î »êºÎ½Ä ½ÃÄÑ dentin sealant ¹×
Z.O.E. ÃæÀü±º°ú ClearfilÃæÀü±ºÀ¸·Î ³ª´©¾î ÃæÀüÈÄ 1, 5, 8ÁÖ °£°ÝÀ¸·Î ȸ»ý½ÃÄÑ Ä¡¼ö¹ÝÀÀÀ»
±¤ÇÐÇö¹Ì°æÀ¸·Î °üÂûÇÏ¿´À¸¸ç ÀÎÀå½ÇÇèÀ» À§ÇØ À¯±¸Ä¡»ó¾ÆÁúÀ» ¿ª½Ã »êºÎ½ÄÈÄ Hi-POL,
Clearfil, FII, Heliosit¸¦ ÃæÀüÇÏ¿© »êºÎ½ÄÇÏÁö ¾ÊÀº ±º°ú °áÇÕ·ÂÀ» ºñ±³ °üÂûÇÏ¿© ´ÙÀ½°ú °°
Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. Ä¡¼ö¹ÝÀÀ¿¡ ÀÖ¾î »êÀ̳ª ·¹ÁøÀÌ Ä¡¼ö¿¡ ¹ÌÄ¡´Â ¿µÇâÀº ÀÜÁ¸»ó¾ÆÁú ¾à 0.6mmÀÌ»óÀÎ Ä¡
¾Æ¿¡¼­´Â À§ÇØ ¹ÝÀÀÀÌ °ÅÀÇ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù.
2. ÀÎÀå°áÇÕ°­µµ´Â 3Á¾ÀÇ º¹ÇÕ·¹Áø °øÈ÷ »êºÎ½Ä ó¸®ÇÑ ±ºÀÌ »êºÎ½Ä ó¸®ÇÏÁö ¾ÊÀº ±ºº¸´Ù
¾à°£ ³ô°Ô ³ªÅ¸³µÀ¸³ª ±× Â÷´Â Àû¾ú´Ù.
3. »ó¾ÆÁú »êºÎ½Ä¹ýÀº ÀÜÁ¾»ó¾ÆÁúÀÌ ºñ±³Àû Á¸ÀçÇÏ°í ÀÖ´Â Ä¡¾Æ¿¡¼­´Â ÀÓ»óÀû ÀÇÀǼºÀÌ ÀÖ
´Â °ÍÀ¸·Î »ç·áµÈ´Ù.
#ÃÊ·Ï#
The purpose of this study was to investigate the pulpal response to acid etching on
dentin surface and the tensile bonding strength of resins to dentin.
In order to evaluate the pulpal response to acid etching, Class V Cavities were
prepared on the teeth of three dogs. After acid etching the cavities were filled with
Z.O.E. cement with dentin sealant or Clearfil without dentin sealant. The dogs were
sacrificed at the firsts, fifth, eighth weeks and the histopathologic examination was done
with light microscope.
Also the tensile bonding strength of composite resins to acid etched dentin was
evaluated from the exfoliated human primary molar (36 teeth).
The results were as follows :
1. If it remained more than 0.6mm of dentin thickness, there was no significant
histologic change to acid etching on dentin or resin which was used.
2. The tensile bonding strength of acid etching group on dentin was higher than that
of non-ecthing but there were no significant difference.
3. If the thickness of remained dentin was not thin, the acid etching technics on dentin
surface seems to be clinically useful.

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