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A Seanning Electron Microscopic Study of Etehing Patterns and Penetration of Composite Resin to Human Deciduous Dentin Etched with Phosphorie Acid.

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±èÁ¾Ã¶(ÐÝñ£ôÊ)/Chong-Chul Kim ¼Õµ¿¼ö(áÝÔÒâÇ)/Dong-Su Sohn

Abstract

Ì¿Öå
×ò߫ݯãÚ¿¡ ÀÇÇÑ êáöÍ ßÚä³òõ øúØüÀÇ Ü¨ûù ¹× º¹ÇÕ·¹Áø öÙ÷âåÆßÓÀ» Á¶»çÇÒ ÙÍîÜÀ¸·Î ÚûöÍ
µÈ 51°³ÀÇ êáöÍòÆØü¿¡ 5±Þ èÀÔ×À» û¡à÷ÇÑ ý­ 40%×òçäÀ¸·Î °¢°¢ ãÁÊàÀ» ´Þ¸®ÇÏ¿© ݯãÚ½ÃŲ
ý­ ßÚä³òõ øúØüÀÇ Ü¨ûù¿Í, ݯãÚ½ÃŲ δÔ׿¡ clearsl·¹ÁøÀ» õöîóÇÏ¿©¼­ ·¹ÁøÀÇ öÙ÷â åÆßÓ°ú
clearfil·¹Áø°ú hipol·¹ÁøÀ» õöîóÇÑ ý­ öÍòõÀ» ð¶ËÛÇÏ¿© ·¹ÁøÀÇ øúØüÀ» ñËÞÛï³í­úéó£ÌðÀ¸·Î
κóÌÇÏ¿© ´ÙÀ½°ú °°Àº Ì¿ÖåÀ» ¾ò¾ú´Ù.
1. êáöÍßÚä³òõÀ» 40% ×òß«À¸·Î 30ÃÊ°£ ݯãÚ½ÃŲ °æ¿ì¿¡´Â ßÚä³á¬Î·ÀÇ ìýÏ¢¸¦ ãÛܬÇÒ ¼ö
ÀÖ¾úÀ¸¸ç ߫ݯãÚ ½Ã°£ÀÇ Áõ°¡¿¡ µû¶ó ßÚä³á¬Î·ÀÇ ìýÏ¢°¡ È®´ëµÇ°í ±× ±íÀÌ°¡ Áõ°¡ÇÏ¿´´Ù.
2. êáöÍßÚä³òõÀ» 40% ×÷ß«À¸·Î 30ÃÊ°£ ݯãÚ½ÃŲ ý­ clears·¹ÁøÀ» õöîóÇÑ Á¤¿ì¿¡´Â ·¹ÁøÔÍ
Ñð¡ ¼Ò¼öÀÇ ßÚä³á¬Î·Ò®·Î öÙ÷âµÇ¾úÀ¸³ª 60ÃÊ, 90ÃÊ, 120ÃʷΠݯãÚ½ÃŲ °æ¿ì¿¡´Â ·¹ÁøÔÍÑð¡
´ëºÎºÐÀÇ ßÚä³á¬Î·Ò®·Î ±íÀÌ öÙ÷âÇÑ °ÍÀ¸·Î κó̵Ǿú´Ù.
3. clearfil·¹ÁøÀº ÔÍÑÃÀÇ ³¡ºÎºÐÀÌ ùèÙҵǸ鼭 â¥õêµÈ ¸ð¾çÀ̾úÀ¸³ª hipol·¹ÁøÀº ÔÍÑÃÀÇ ö°
ØüÀÌ â¥õêµÇ¾ú´Ù.
4. ïÈó·àõ ·¹ÁøÀ» ÞÅéÄÇÒ °æ¿ìÀÇ êáöÍßÚä³òõÀÇ ß«Ý¯ãÚÀº 40%×òß«À» ÞÅéÄÇÏ¿© 60ÃÊ°£ ݯ
ãÚ½ÃŲ°ÍÀÌ °¡Àå Àû´çÇÑ °ÍÀ¸·Î κó̵Ǿú´Ù.
5. ßÚä³á¬Î·ÀÇ ÍÓáðàõÀº clears·¹ÁøÀÌ hipo·¹Áø º¸´Ù. ÕÞû¿ ÇÏ¿´´Ù.#
ÃÊ·Ï#
To observe the etching patterns and penetration of composite resin to human
deciduous dentin etched with 40% phosphoric acid by scanning electron microscope,
etching was performed for 0sec., 30sec., 60sec., 90sec. and 120sec. after preparing class
v cavities on the labial surface of 51 extracted deciduous teeth.
The change of etched dentin surface were observed.
Clearfil resin was filled on the etched cavities and the penetration patterns of resin
were observed.
Clearfil and Hipol resin surfaces after removal of tooth substance were observed.
The results were as follows:
1. Clearly visible dentinal tubule openings were seen on the dentin surface etched for
30 sec. Extension of etching time, increased the depth of tubule enlargement.
2. Rare resin tags were seen in the dentin etched for 30 sec. followed by resin filling.
Many resin tags were seen in the dentin etched 60 sec,. 90 sec., 120 sec. followed by
resin filling.
3. Clearfil resin tags had hollow depressions at the ends, but Hipol robin tags shrank
at the side and had tapered ends.
4. Proper time of etching deciduous dentin for adhesive resin was 60 sec.
5. Clearfil resin had more favorable properties than Hipol resin in sealing the dentinal
tubules.

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