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Clinical evaluation of retained preload and cement washout in screw- and cement-retained implant prosthesis

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Á¤ÀçÇå, ¼Õ¹Ì°æ, ±è¼®±Ô,
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Á¤ÀçÇå ( Chung Chae-Heon ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
¼Õ¹Ì°æ ( Son Mee-Kyung ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
±è¼®±Ô ( Kim Seok-Gyu ) - ¼º±Õ°ü´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç

Abstract

¸ñÀû: ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº Áö´ëÁÖ ³ª»ç ÀÜ¿© ÀüºÎÇÏ ºñÀ²°ú ½Ã¸àÆ® ÆļÕÀ¯¹« Æò°¡¸¦ ÅëÇØ ³ª»ç ½Ã¸àÆ® À¯ÁöÇü ÀÓÇöõÆ® ö¹°(screw- and cement-retained implant prosthesis: SCP)ÀÇ ÀÓ»óÀû ¼öÇà ´É·ÂÀ» ¾Ë¾Æº¸´Â °ÍÀÌ´Ù.

Àç·á ¹× ¹æ¹ý: ±¸Ä¡ºÎ ºÎºÐ ¹«Ä¡¾Ç ȯÀÚµéÀ» ´ë»óÀ¸·Î ÀÓÇöõÆ®°¡ ½Ä¸³µÇ¾úÀ¸¸ç 3 - 6°³¿ùÀÇ Ä¡À¯±â°£ ÈÄ SCPÀÓÇöõÆ® º¸Ã¶¹°ÀÌ ÀåÂøµÇ¾ú´Ù. ÃßÀû °üÂûÀ» ÅëÇØ ÀÓÇöõÆ®ÀÇ »ýÁ¸À²ÀÌ Æò°¡µÇ°í º¸Ã¶¹° ¼º°ø·üµµ Æò°¡µÇ¾ú´Ù. SCP º¸Ã¶¹°ÀÇ ³ª»ç ÀÜ¿© ÀüºÎÇÏ ºñÀ² ¹× ½Ã¸àÆ® ÆÄ¼Õ ºñÀ²ÀÌ ÃøÁ¤µÇ¾ú´Ù.

°á°ú: 20¸íÀÇ È¯ÀڷκÎÅÍ 21°³ÀÇ SCPº¸Ã¶¹°(43°³ÀÇ ÀÓÇöõÆ®)ÀÌ ÃÖ´ë 64°³¿ù±îÁö °üÂûµÇ¾ú´Ù. °üÂû±â°£(Æò±Õ 34°³¿ù) µ¿¾È °ñÀ¶ÇÕ¿¡ ½ÇÆÐÇÑ ÀÓÇöõÆ®´Â Çϳªµµ ¾ø¾ú´Ù. Áö´ëÁÖ, ³ª»ç, µµÀç ȤÀº º¸Ã¶¹° ÇÁ·¹ÀÓ ÆÄÀýÀ̳ª ³ª»ç Ç®¸² µîÀº ¾ø¾úÀ¸¹Ç·Î º¸Ã¶¹° ¼º°øÀ²Àº 100%¿´´Ù. SCP º¸Ã¶¹°ÀÇ ³ª»ç ÀÜ¿© ÀüºÎÇÏ ºñÀ²Àº 97.61% (¡¾16.29), ±×¸®°í ½Ã¸àÆ® ÆļպñÀ²Àº 9.5%À̾ú´Ù.

°á·Ð: º» ½ÇÇèÀÇ ÇÑ°è ³»¿¡¼­, ³ª»ç Ç®¸²°ú ½Ã¸àÆ® ÆļÕÀ̶õ °üÁ¡¿¡¼­ SCP µðÀÚÀÎÀÇ ÀÓÇöõÆ® º¸Ã¶¹°Àº ¾çÈ£ÇÑ ´Ü±â ÀÓ»ó °á°ú¸¦ º¸¿´´Ù.

Purpose: The aim of this study was to evaluate the clinical performance of screw- and cement-retained implant prosthesis (SCP) design in terms of retained preload of abutment screws and cement washout.

Materials and methods: Patients with the partial posterior edentulous areas comprised the study group. Implants were placed, and SCPs were delivered after 3 to 6 months healing. Follow-up examinations were performed. The implant survival rate and the prosthetic success rate were evaluated. The retained preload ratio of abutment screws and the prosthetic decementation ratio were measured.

Results: Twenty one SCPs (forty three implants)in twenty patients were followed up to 64 months. All of the implants survived during the follow-up period (mean follow-up: 34 months). The prosthetic success rate was 100 % considering no abutment, screw, porcelain or metal frame fractures, as well as no screw loosening. The retained preload ratio of SCPs at the end of follow-up period was 97.61% (¡¾16.29) and the decementation ratio was 9.5 %.
Conclusion: Within the limitations of this clinical study, SCP design showed favorable short-term clinical performances in respect of screw loosening and cement washout.

Å°¿öµå

Ä¡°ú º¸Ã¶¹° µðÀÚÀÎ Ä¡°ú ½Ã¸àÆ® Ä¡°ú ÀÓÇöõÆ® º¸Ã¶¹°
Dental prosthesis design; Dental cements; Implant-supported dental prosthesis

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KoreaMed