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Comparison of marginal and internal fit of zirconia abutments with titanium abutments in internal hexagonal implants

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Á¶Çý¿ø ( Cho Hye-Won ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¸ñÀû: º» ¿¬±¸ÀÇ ¸ñÀûÀº ³»ºÎÀ°°¢ ¿¬°áÇü ÀÓÇöõÆ®¿¡¼­ µÎ °¡Áö Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ¿Í Æ¼Å¸´½ Áö´ëÁÖÀÇ º¯¿¬ ¹× ³»¸é ÀûÇÕµµ¸¦ ºñ±³ÇÏ°íÀÚ ÇÏ¿´´Ù.

Àç·á ¹× ¹æ¹ý: ƼŸ´½ Áö´ëÁÖ¿Í µÎ Á¾·ùÀÇ Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ¸¦ ³»ºÎÀ°°¢¿¬°á ±¸Á¶Çü ÀÓÇöõÆ®(TSV, Zimmer)¿¡ ü°áÇÏ¿´´Ù. ±â¼º ƼŸ´½ Áö´ëÁÖ (Hex-Lock, Zimmer)¸¦ ´ëÁ¶±ºÀ¸·Î ÇÏ¿©, ±â¼º Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ(ZirAce, Acucera)¿Í copy milling ½Ã½ºÅÛ(Zirkonzahn Max, Zirkonzahn)À¸·Î Á¦ÀÛÇÑ ¸ÂÃãÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ¸¦ ºñ±³ÇÏ¿´´Ù. ÀÓÇöõÆ® °íÁ¤Ã¼¿¡ 30 NcmÀÇ ÅäÅ©·Î Áö´ëÁÖ¸¦ ¿¬°áÇÏ¿´À¸¸ç, °¢ ½ÇÇ豺 ´ç 8°³ÀÇ ½ÃÆíÀ» Á¦ÀÛÇÏ¿´´Ù. ¾ÆÅ©¸± ·¹Áø¿¡ Æ÷¸ÅÇÏ¿© Àý´Ü½ÃÆíÀ» Á¦ÀÛÇÑ ÈÄ ÁÖ»çÀüÀÚÇö¹Ì°æÀ¸·Î °íÁ¤Ã¼-ÀÓÇöõÆ® °è¸é¿¡¼­ º¯¿¬°£±Ø°ú ³»ºÎÀ°°¢ ³»¸é°£±ØÀ» ÃøÁ¤ÇÏ°í, Áö´ëÁÖ ³ª»ç¿Í Áö´ëÁÖ ³ª»ç¹Þħ »çÀÌ °è¸é¿¡¼­ ¼öÁ÷ ¹× ¼öÆò°£±ØÀ» ÃøÁ¤Çß´Ù. ÃøÁ¤Ä¡´Â ÀÏ¿ø¹èÄ¡ºÐ»êºÐ¼®°ú Scheffe test·Î Åë°è ó¸®ÇÏ¿´´Ù(¥á=0.05).

°á°ú: ¸ÂÃãÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖÀÇ º¯¿¬ °£±ØÀº µÎ °¡Áö ±â¼º Áö´ëÁÖ¿¡ ºñÇØ ÄÇ´Ù. ³»ºÎÀ°°¢ ³»¸é°£±ØÀº ¸ÂÃãÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ¿Í ±â¼º Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ »çÀÌ¿¡ À¯ÀÇÂ÷¸¦ º¸ÀÌÁö ¾Ê¾Ò°í ±â¼º ƼŸ´½ Áö´ëÁÖº¸´Ù ÄÇ´Ù. ±â¼º Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖÀÇ Áö´ëÁÖ ³ª»ç ¼öÁ÷°£±Ø°ú ¼öÆò°£±ØÀº ±â¼º ƼŸ´½ Áö´ëÁÖº¸´Ù ÄÇ´Ù. ¸ÂÃãÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖÀÇ °æ¿ì. Áö´ëÁÖ ³ª»ç ¼öÆò°£±ØÀº µÎ °¡Áö ±â¼º Áö´ëÁÖº¸´Ù ÄÇÀ¸¸ç, Áö´ëÁÖ ³ª»ç ¼öÁ÷°£±ØÀ» ÃøÁ¤ÇÒ ¼ö ¾ø¾ú´Ù. ±â¼º Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ´Â ³ª»ç¹ÞħÀÌ ¸íÈ®ÇÏ°Ô Çü¼ºµÇ¾î ÀÖ¾úÀ¸³ª, ³ª»ç¹ÞħÀÇ ÇüÅ°¡ Áö´ëÁÖ ³ª»ç¿Í Á¶È­µÇÁö ¾Ê¾Ò´Ù. ¸ÂÃãÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖÀÇ °æ¿ì¿¡´Â ³ª»ç¹ÞħÀÌ ¸íÈ®ÇÏ°Ô Çü¼ºµÇ¾î ÀÖÁö ¾Ê¾Ò´Ù.

°á·Ð: ³»ºÎÀ°°¢ ¿¬°áÇü ÀÓÇöõÆ®¿¡¼­ ±â¼º ƼŸ´½ Áö´ëÁÖ°¡ µÎ Á¾·ùÀÇ Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖº¸´Ù ÀûÇÕµµ°¡ ÁÁ¾Ò´Ù. ¸ÂÃãÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ´Â µÎ °¡Áö ±â¼º Áö´ëÁÖ¿¡ ºñÇØ º¯¿¬°£±ØÀÌ Å©°í ³ª»ç¿Í ³ª»ç¹Þħ »çÀÌÀÇ ÀûÇÕµµ°¡ ³·¾Ò´Ù.

PURPOSE: The aim of this study was to evaluate the fit accuracy of two zirconia and titanium abutments in internal hexagonal implants.

MATERIALS AND METHODS: One titanium abutment and two zirconia abutments were tested in internal hexagonal implants (TSV, Zimmer). Prefabricated zirconia abutments (ZirAce, Acucera) and customized zirconia abutments milled by the Zirkonzahn system (Zirkonzahn Max, Zirkonzahn) were selected and prefabricated titanium abutments (Hex-Lock, Zimmer) were used as a control. Eight abutments per group were connected to implants with 30 Ncm torque. The marginal gaps at abutment-implant interface, the internal gaps at internal hex, vertical and horizontal gaps between screws and screw seats in abutments were measured after sectioning the embedded specimens using a scanning electron microscope. Data analysis included one-way analysis of variance and the Scheffe test (n=16, ¥á=0.05).

RESULTS: The mean marginal gap of customized zirconia abutment was higher than those of two prefabricated zirconia and titanium abutments. The internal gaps at internal hex showed no significant differences between customized and prefabricated abutments and were higher than those of prefabricated titanium abutments. The mean vertical and horizontal gaps at screw in prefabricated zirconia abutment were higher than those of prefabricated titanium abutment. In the case of customized zirconia abutment, the mean horizontal gap at screw was higher than those of both the prefabricated zirconia and the titanium abutment but the mean vertical gap was not even measureable. The screw seats were clearly formed but did not match with abutment screws in prefabricated zirconia abutments. They were not, however, precisely formed in the case of customized zirconia abutments.

CONCLUSION: Within the limitations of this study, the prefabricated titanium abutments showed better fit than the zirconia abutments, regardless of customized or prefabricated. Also, the customized zirconia abutments showed significantly higher marginal gaps and the fit was less accurate between screws and screw seats than the prefabricated abutments, titanium and zirconia.

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ÀûÇÕµµ; ³»ºÎ¿¬°áÇü ÀÓÇöõÆ®; Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ; ƼŸ´½ Áö´ëÁÖ; ¸ÂÃãÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ
Fit; Internal connection implant; Zirconia abutment; Titanium abutment; Customized zirconia abutment

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