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Temperature changes in the pulp according to various restorative materials and bases during polishing procedure

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À̵Îö ( Lee Doo-Cheol ) - ÀüºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±è¹Ì¶ó ( Kim Mi-Ra ) - ÀüºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÀç°ï ( Kim Jae-Gon ) - ÀüºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

Ä¡¾Æ ¼öº¹½Ã ¸¶¹«¸® °úÁ¤¿¡¼­ÀÇ ¿¬¸¶´Â ¼öº¹¹°ÀÇ ¼ö¸í ¹× ½É¹Ì¼ºÀ» °áÁ¤ÇÏ´Â Áß¿äÇÑ °úÁ¤À¸·Î¼­ ¿¬¸¶½Ã ¸¶Âû¿­ÀÇ ¹ß»ýÀ¸·Î ÀÎÇÏ¿© Ä¡¼ö¿¡ À§ÇØÀÛ¿ëÀ» ÁÙ ¼ö ÀÖÀ¸¹Ç·Î ÁÖÀǸ¦ ÇÏ¿©¾ß ÇÑ´Ù.

¿©·¯ °¡Áö ¼öº¹ Àç·á¸¦ ¿¬¸¶ÇÏ´Â µ¿¾È Ä¡¼ö³»¿¡¼­ ¹ß»ýÇÏ´Â ¿­ÀÇ º¯È­¸¦ ¼öº¹¹° Á¾·ù, ÀÌÀåÀç Á¾·ù, ÀÜÁ¸ »ó¾ÆÁúÀÇ µÎ²², ¿¬¸¶ ½Ã°£ÀÇ Â÷ÀÌ¿¡ µû¶ó Á¶»çÇÏ°íÀÚ ¹ßÄ¡µÈ ±¸Ä¡¿¡ ¼öº¹¹°À» ÃæÀüÇÑ ÈÄ aluminum-oxide coated disc¸¦ ÀÌ¿ëÇÏ¿© ¿¬¸¶ÇÏ´Â °úÁ¤¿¡¼­ thermocoupleÀ» ÀÌ¿ëÇÏ¿© Ä¡¼ö³» ¿Âµµ°ªÀ» ÃøÁ¤ÇÏ¿´À¸¸ç, ÀÌ¿¡ ´ëÇÑ Åë°èÀû ºÐ¼®À» ½ÃÇàÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.

¸ðµç °æ¿ì¿¡¼­ ¿¬¸¶ ½Ã°£ÀÌ Áõ°¡ÇÔ¿¡ µû¶ó Ä¡¼ö³» ¿Âµµ°¡ Áõ°¡ÇÏ¿´À¸¸ç, ¾Æ¸»°¨ ¿¬¸¶½Ã ´Ù¸¥ ¼öº¹ Àç·á¿¡ ºñÇØ Å« ¿Âµµ Áõ°¡Ä¡¸¦ º¸¿´À¸³ª composite resin, glass ionomer cement, ±×¸®°í compomer¿¡¼­´Â ¿¬¸¶¿¡ µû¸¥ ¿Âµµ º¯È­Â÷°¡ °üÂûµÇÁö ¾Ê¾Ò´Ù. ¾Æ¸»°¨ ÇϹ濡 ÀÌÀåÀ縦 »ç¿ëÇÑ °æ¿ì¿¡ ÀÌÀåÀ縦 »ç¿ëÇÏÁö ¾Ê¾ÒÀ» °æ¿ì¿¡ ºñÇØ ¿Âµµ Áõ°¡·®ÀÌ Àû¾úÀ¸¸ç, ´Ù¸¥ ¼öº¹Àç¿¡¼­´Â ÀÌÀåÀç »ç¿ë¿©ºÎ¿¡ µû¸¥ ¿Âµµ Áõ°¡·®ÀÇ Â÷ÀÌ´Â Á¸ÀçÇÏÁö ¾Ê¾Ò´Ù. º» ½ÇÇè¿¡¼­ »ç¿ëµÈ ÀÌÀåÀç Áß glass ionomer cement¿Í zinc phosphate cement¿¡ ºñÇØ zinc oxide eugenol cementÀÇ ¿­ Â÷´Ü È¿°ú°¡ °¡Àå ÀÛ¾Ò´Ù.

¼öº¹¹°¿¡ °£ÇæÀûÀÎ ¿¬¸¶¸¦ ½ÃÇàÇÑ °æ¿ì, Áö¼ÓÀûÀÎ ¿¬¸¶¸¦ ½ÃÇàÇÑ °æ¿ì¿¡ ºñÇØ ¿Âµµ Áõ°¡·®ÀÌ ÀÛ¾ÒÀ¸¸ç, ¾Æ¸»°¨ ÇϹæÀÇ ÀÜÁ¸ »ó¾ÆÁúÀÇ µÎ²²°¡ °¨¼ÒÇÏ¸é ¿Âµµ Áõ°¡·®ÀÌ ´õ Ä¿Á³À¸³ª, ´Ù¸¥ ¼¼ Á¾·ùÀÇ ¼öº¹Àç¿¡¼­´Â ÀÜÁ¸ »ó¾ÆÁúÀÇ µÎ²²¿¡ µû¸¥ Â÷ÀÌ°¡ ¹ß»ýÇÏÁö ¾Ê¾Ò´Ù.

An in vitro study was performed to evaluate the effect of four variables on the temperature rise produced by polishing of restorations. The foulr variables were : restorative material, base, thickness of remaining dentin, continuous polishing of¡¯intermittent polishing. Class V cavities were cut on extracted molar and restored with composite resin , resin-modified glass ionomer cement. compomer, amalgam on the various bases (glass ionomer cement. zinc oxide eugenol cement, zinc phosphate cement) . Dentin thickness under the restoration was 0.5mm, 1.5mm. Polishing was done with an aluminum oxide-coated disc. Polishing time was continuous or intermittent fur up to 1 minute.

Intra-pulpal temperature increased almost linearly in all cases. Amalgam produced highest temperature risesat the pulp, while the composite resin, resin-modified glass ionomer cement and compomer were not different for each other The rate and extent of temperature rising of amalgam restoration was reduced by presence of acement base. Zinc oxide eugenol cement bases showed the highest temperature rise, while glass ionomer cement, zinc phosphate cement were not different to the untreased tooth. Thickness of remaining dentin was only significant for the amalgam restoration. Continuous polishing produced higher temperature rise than intermittent polishing.

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Temperature changes;Polishing;Composite resin;Amalgam

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