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°æ»çÇü ³»ºÎ¿¬°á ÀÓÇöõÆ® ½Ã½ºÅÛ (SS III¢ç)¿¡¼­ Áö´ëÁÖ ÇüÅ¿¡ µû¸¥ ÀÀ·ÂºÐÆ÷ÀÇ 3Â÷¿ø À¯ÇÑ¿ä¼Ò ºÐ¼®

A 3-dimensional finite element analysis of tapered internal connection implant system (Avana SS III¢ç) on different abutment connections

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ÀÌÇý½Â ( Lee Hye-Sung ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÓ»óÄ¡ÀÇÇдëÇпø ÀÓÇöõÆ®Çаú
±è¸í·¡ ( Kim Myung-Rae ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÓ»óÄ¡ÀÇÇдëÇпø ÀÓÇöõÆ®Çаú
¹ÚÁö¸¸ ( Park Ji-Man ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Ä¡°úÇб³½Ç
±è¼±Á¾ ( Kim Sun-Jong ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Ä¡°úÇб³½Ç

Abstract

¿¬±¸ ¸ñÀû: ³»ºÎ¿¬°áÇü ÀÓÇöõÆ® °íÁ¤Ã¼¿¡ ¿¬°á ¹æ½ÄÀÌ ´Ù¸¥ 4Á¾·ùÀÇ Áö´ëÁÖ¸¦ ¿¬°áÇÏ¿© ±³ÇÕ·ÂÀ» °¡ÇÏ¿´À» ¶§ °¢ ±¸Á¶¿¡ ¹ß»ýÇÏ´Â ÀÀ·ÂÀÇ Â÷À̸¦ ºñ±³ÇÏ°í, ÀÌµé ¿¬°á¹æ½ÄÀÌ ÀÓÇöõÆ® ÁÖÀ§Á¶Á÷ÀÇ ÀÀ·ÂºÐÆ÷¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» 3Â÷¿ø À¯ÇÑ¿ä¼Ò¹ýÀ» ÅëÇÏ¿© ¾Ë¾Æº¸°í, Áö´ëÁÖÀÇ ¼±Åà ±âÁØÀ» ¸¶·ÃÇÏ°íÀÚ ÇÏ¿´´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: °íÁ¤Ã¼·Î´Â Á÷°æ 4 mm, ±æÀÌ 11.5 mmÀÇ SS-III? (Osstem, Korea)¸¦ »ç¿ëÇÏ¿´À¸¸ç, »ç¿ëµÈ Áö´ëÁÖ´Â °¢°¢, ¸ðµ¨ 1¿¡¼­ Solid abutment, ¸ðµ¨ 2¿¡¼­ Com-Octa abutment, ¸ðµ¨ 3¿¡¼­ ComOcta Gold abutment, ¸ðµ¨ 4¿¡¼­ Octa abutment¸¦ »ç¿ëÇÏ¿´°í, ³× °¡Áö ÇÏÁßÁ¶°ÇÀ¸·Î Ä¡°üÁß½É¿Í (central fossa)¿¡ fixture ÀåÃà¿¡ ÆòÇàÇÏ°Ô Á¡ÇÏÁßÀ¸·Î100NÀÇ ¼öÁ÷ÇÏÁß, ÇùÃø±³µÎ¿¡ ´ëÇÏ¿© fixture ÀåÃà¿¡ ÆòÇàÇÏ°Ô Á¡ÇÏÁßÀ¸·Î 100 N ¼öÁ÷ÇÏÁß, Ä¡°üÁ߽ɿͿ¡¼­ ¼³ÃøÀ¸·Î 100 NÀÇ 30?°æ»çÇÏÁß, ÇùÃø±³µÎ (buccal cusp)¿¡ Ä¡¾ÆÀÇ ¹Ù±ùÂÊ¿¡¼­ ³»ÃøÀ¸·Î 100 NÀÇ 30?°æ»çÇÏÁßÀ» ÁÖ¾ú°í 3G.Author (Plasso Tech, USA)¸¦ ÀÌ¿ëÇÏ¿© ºÐ¼®ÇÏ¿´´Ù.

°á°ú: 1. °ñÁ¶Á÷¿¡¼­´Â ¸ðµç ¸ðµ¨¿¡¼­ ÇÏÁßÁ¶°Ç¿¡ °ü°è¾øÀÌ °¡Àå Å« ÀÀ·ÂÀÌ °íÁ¤Ã¼ »óºÎ¿¡ ÁýÁߵǾú°í, °íÁ¤Ã¼ ÇϺο¡¼­´Â ±Ù´Ü ºÎÀ§¿¡¼­ ÀÀ·Â ÁýÁßÀ» º¸¿´À¸¸ç, ±× ¿ÜÀÇ ºÎÀ§¿¡¼­´Â Å« ÀÀ·Â ÁýÁßÀº º¸ÀÌÁö ¾Ê¾Ò´Ù. 2. °íÁ¤Ã¼¿¡¼­ÀÇ ÀÀ·ÂÀº ¸ðµç ¸ðµ¨¿¡¼­ ÇÏÁßÁ¶°Ç¿¡ °ü°è¾øÀÌ neck ºÎÀ§¿¡¼­ ÃÖ´ëÀÇ ¾ç»óÀ» º¸¿´´Ù. 3. ÀÀ·ÂÀº °ñ¿¡¼­º¸´Ù ÀÓÇöõÆ® ³»ºÎ¿¡¼­ ÈξÀ ³ô¾Ò´Ù. 4. Á߽ɿͿ¡ ¼öÁ÷ÇÏÁßÀÎ ÇÏÁßÁ¶°Ç 1¿¡¼­ °¡Àå ³·Àº ÀÀ·ÂÀÌ °üÂûµÇ¾úÀ¸¸ç, ÀÌ ¶§ÀÇ ÀÀ·ÂÁýÁß Çö»óµµ °¡Àå Àû°Ô ³ªÅ¸³µ´Ù. ¼­·Î ´Ù¸¥ Áö´ëÁÖ¿¡¼­ ÀÀ·ÂºÐÆ÷ ¾ç»óÀ» »ìÆ캻 °á°ú, °°Àº °íÁ¤Ã¼¸¦ »ç¿ëÇÑ °æ¿ì¿¡ Áö´ëÁÖÀÇ ¿¬°á ÇüÅ¿¡ µû¸¥ °ñÁ¶Á÷¿¡¼­ÀÇ ÀÀ·Â ºÐÆ÷ÀÇ Â÷ÀÌ´Â ¾ø¾ú´Ù.

Purpose The purpose of this study was to compare the stress distribution characteristics of four different abutment connections on SS-III¢ç fixture under occlusal loading, using 3-dimensional finite element method.

Materials and methods The fixture of SS-III¢ç (Osstem, Korea) with 4 mm diameter and 11.5 mm length and 4 types of abutments were analyzed; Solid, Com-Octa, ComOcta Gold, and Octa abutment. The models were placed in the area of first molar in the mandible. The 4 loading conditions were; (1) the vertical loading of 100 N on the central fossa, (2) the vertical loading of 100 N on the buccal cusp, (3) the 30¡Æinclined loading of 100 N to lingual side on the central fossa, and (4) the 30¡Æ inclined loading of 100 N to the lingual side on the buccal cusp. The 3G.Author program was used, the von-Mises stress was calculated and the stress contours were plotted on each part of the implant systems and the surrounding bone structures.

Results Regardless of abutment types and loading conditions, higher stress concentration was observed at the cortical bone. In cancellous bone, the highest stress was observed at apical portion and the maximum stress occurred at the implant neck. The higher internal stress was observed in the fixtures than in the bone. The lowest stress was observed at loading condition 1 and the stress concentration was also lower than any other loading conditions.

Conclusion Within the limitation of the result of this study, it seems that the abutment connection type does not affect much on the stress distribution of bone structure.

Å°¿öµå

3Â÷¿ø À¯ÇÑ¿ä¼Ò¹ý;³»ºÎ ¿¬°áÇü ÀÓÇöõÆ®;Áö´ëÁÖ;ÀÀ·ÂºÐ»ê
Three-dimensional FEA;SS-III¢ç implant;Implant abutment;Stress distribution

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