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Microleakage of endodontically treated teeth restored with three different esthetic post and cores

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¹ÚÁö±Ù, ¹ÚÁø¸¸, ¹ÚÀºÁø,
¼Ò¼Ó »ó¼¼Á¤º¸
¹ÚÁö±Ù ( Park Ji-Geun ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Ã¶Çб³½Ç
¹ÚÁø¸¸ ( Park Jin-Man ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
¹ÚÀºÁø ( Park Eun-Jin ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¿¬±¸¸ñÀû: ¿À´Ã³¯ ½É¹ÌÀû ¿ä±¸ÀÇ Áõ°¡·Î Ä¡¾Æ»ö Æ÷½ºÆ® Äھ ´ëÇÑ ¸¹Àº °ü½ÉÀÌ ¸ð¾ÆÁö°í ÀÖÀ¸¸ç ´Ù¾çÇÑ ¿¬±¸°¡ ÁøÇà ÁßÀÌ´Ù. ÇöÀç È­À̹ö Æ÷½ºÆ® (ParaPost fiber White, Coltene Whaledent, Cuyahoga Falls, USA), Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ® (CosmoPost, Ivoclar Vivadent, Schann, Germany) µî¿¡ °üÇÑ ³í¹®Àº ´Ù¼Ò ³ª¿Í ÀÖÀ¸³ª ¿äÁò ¿©·¯ ºÐ¾ß¿¡¼­ °ü½ÉÀ» ¹Þ°í ÀÖ´Â CAD/CAM(computer-aided design/computer-aided manufacturing) ¹æ½ÄÀ¸·Î Áö¸£ÄڴϾƸ¦ °¡°øÇÑ Àý»èÇü Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ® Äھ ´ëÇÑ ¿¬±¸´Â ¸¹Áö ¾ÊÀº ½ÇÁ¤ÀÌ´Ù. ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº CAD/CAMÀ» ÀÌ¿ëÇÑ Áö¸£ÄڴϾƸ¦ ºñ·ÔÇÏ¿© ±Ù°üÄ¡·áµÈ Ä¡¾Æ¿¡¼­ »ç¿ëµÈ ¼¼ °¡Áö ´Ù¸¥ Ä¡¾Æ»ö Æ÷½ºÆ® Äھ ´ëÇØ ¹Ì¼¼´©Ãâ (microleakage)À» ºñ±³ÇØ º¸´Â °ÍÀÌ´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ¹ßÄ¡µÈ °ÇÀüÇÑ »ó¾Ç ÀýÄ¡ 27°³¸¦ äÅÃÇÏ¿© ¹é¾Ç¹ý¶ûÁú°æ°è (CEJ)¿¡¼­ Àý´ÜÇÏ¿© ±Ù°üÄ¡·á¸¦ ½ÃÇàÇÏ°í, ¼¼±º(°¢ 9°³)À¸·Î ³ª´©¾ú´Ù. °¢±ºµéÀº È­À̹ö Æ÷½ºÆ®¿Í ÄÞÆ÷ÁþÆ® ·¹Áø ÄÚ¾î (1±º), Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ®¿Í ¿­°¡¾ÐÇü ¼¼¶ó¹Í ÄÚ¾î (2±º), CAD/CAM Àý»èÇü Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ® ÄÚ¾î (3±º)·Î ¼öº¹ÇÏ¿´´Ù. 5 - 55¡É 1000ȸ ¿­¼øȯ ó¸® (thermocycling)¸¦ ½ÃÇàÇÏ°í, 2% ¸ÞÆ¿·» ºí·ç·Î 37¡É¿¡¼­ 24½Ã°£ ¿°»öÇÏ¿´´Ù. Ä¡¾ÆÀåÃà°ú ÆòÇàÇÏ°Ô ¼ø¼³¹æÇâÀ¸·Î Àý´ÜÇÏ¿© ¹Ì¼¼´©ÃâÀ» Çö¹Ì°æ°ú ÄÄÇ»ÅÍ ÇÁ·Î±×·¥À» »ç¿ëÇÏ¿© ºÐ¼®À» ÇÏ¿´´Ù. µ¥ÀÌÅÍ´Â one-way ANOVA¿Í Scheffe¡¯s multiple range test (¥á= 0.05)·Î ºÐ¼®ÇÏ¿´´Ù.

°á°ú: ¸ðµç ±º¿¡¼­ ¹Ì¼¼´©ÃâÀ» º¸¿´À¸¸ç, Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ®¿Í ¿­°¡¾ÐÇü ¼¼¶ó¹Í Äھ (2±º)¿¡¼­ Ä¡±Ù°è¸é ÀÔ±¸¿¡¼­´Â ´Ù¼Ò ¸¹Àº ¹Ì¼¼´©ÃâÀ» º¸¿´À¸³ª Æ÷½ºÆ® ³¡¿¡ À̸£·¯¼­´Â °ÅÀÇ ¹Ì¼¼´©ÃâÀÌ ¾ø´Â °á°ú¸¦ º¸¿´´Ù. È­À̹ö Æ÷½ºÆ®¿Í ÄÞÆ÷ÁþÆ® ·¹Áø Äھ (1±º)°úCAD/CAM Àý»èÇü Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ® Äھ (3±º)¿¡¼­´Â ºÎÀ§º°·Î ±ÕµîÇÑ ¹Ì¼¼´©ÃâÀ» º¸¿´´Ù.

°á·Ð: È­À̹ö Æ÷½ºÆ®¿Í ÄÞÆ÷ÁþÆ® ·¹Áø Äھ, Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ®¿Í ¿­°¡¾ÐÇü ¼¼¶ó¹Í Äھ, CAD/CAM Àý»èÇü Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ® Äھ ¸ðµÎ¿¡¼­ ¹Ì¼¼´©ÃâÀ» º¸¿´°í, ÀÌ Áß¿¡¼­ Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ®¿Í ¿­°¡¾ÐÇü ¼¼¶ó¹Í ÄھÀÌ Á» ´õ Å« ¹Ì¼¼´©Ãâ¿¡ ´ëÇÑ ÀúÇ×¼ºÀ» º¸¿´À¸¸ç È­À̹ö Æ÷½ºÆ®¿Í ÄÞÆ÷ÁþÆ® ·¹Áø Äھ, CAD/CAM Àý»èÇü Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ® ÄھÀº À¯»çÇÑ ¾ç»óÀ» º¸¿´À¸³ª, °¢ ½ÇÇ豺 °£¿¡ Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ´Â ÀÎÁ¤µÇÁö ¾Ê¾Ò´Ù.

Statement of problem: At present, as the esthetic demands are on the increase, there are many ongoing studies for tooth-colored post and cores. Most of them are about fiber post and prefabricated zirconia post, but few about one-piece milled zirconia post and core using CAD/CAM (computer-aided design / computer-aided manufacturing) technique.

Purpose: The objective of this study was to compare microleakage of endodontically treated teeth restored with three different tooth-colored post and cores.

Material and methods: Extracted 27 human maxillary incisors were cut at the cementoenamel junction, and the teeth were endodontically treated. Teeth were divided into 3 groups (n = 9); restored with fiber post and resin core, prefabricated zirconia post and heat - pressed ceramic core, and CAD/CAM milled zirconia post and core. After the preparation of post space, each post was cemented with dual-polymerized resin cement (Variolink II). Teeth were thermocycled for 1000 cycles between 5 - 55¡É and dyed in 2% methylene blue at 37¡É for 24 hours. Teeth were sectioned (bucco - lingual), kept the record of microleakage and then image-analyzed using a microscope and computer program. The data were analyzed by one-way ANOVA and Scheffe¡Çs multiple range test (¥á= 0.05).

Results: All groups showed microleakage and there were no significant differences among the groups (P > .05).
Prefabricated zirconia post and heat-pressed ceramic core showed more leakage in dye penetration at the post - tooth margin, but there was little microleakage at the end of the post. Fiber post and resin core group and CAD/CAM milled zirconia post and core group indicated similar microleakage score in each stage.

Conclusion: Prefabricated zirconia post and heat-pressed ceramic core group demonstrated better resistance to leakage, and fiber post and resin core group and CAD/CAM milled zirconia post and core group showed the similar patterns. The ANOVA test didn¡¯t indicate significant differences in microleakage among test groups. (P > .05)

Å°¿öµå

È­À̹ö Æ÷½ºÆ®;Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ®;CAD/CAM Àý»èÇü Áö¸£ÄÚ´Ï¾Æ Æ÷½ºÆ® ÄÚ¾î;¿­¼øȯó¸®;¹Ì¼¼´©Ãâ
Fiber post;Zirconia post;CAD/CAM milled zirconia post and core;Thermocycling;Microleakage

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