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Clinical accuracy of impression technique using digital superimposition of customized abutment with subgingival margin: A case report

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±èÁø¿Ï, Á¤Ã¢¸ð, À±¹ÌÁ¤, À̼ÒÇö, ÀÌÇöÁ¾, ÇãÁߺ¸,
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±èÁø¿Ï ( Kim Jin-Wan ) - Pusan National University School of Dentistry Department of Prosthodontics
Á¤Ã¢¸ð ( Jeong Chang-Mo ) - Pusan National University School of Dentistry Department of Prosthodontics
À±¹ÌÁ¤ ( Yun Mi-Jung ) - Pusan National University School of Dentistry Department of Prosthodontics
À̼ÒÇö ( Lee So-Hyoun ) - Pusan National University School of Dentistry Department of Prosthodontics
ÀÌÇöÁ¾ ( Lee Hyun-Jong ) - Pusan National University School of Dentistry Department of Prosthodontics
ÇãÁߺ¸ ( Huh Jung-Bo ) - Pusan National University School of Dentistry Department of Prosthodontics

Abstract

ÀÓÇöõÆ® »óºÎ º¸Ã¶¹° Á¦ÀÛ ½Ã Ä¡Àº¿¬ÇÏ º¯¿¬À» °¡Áö´Â ¸ÂÃãÇü Áö´ëÁÖÀÇ ÀλóäµæÀ» À§ÇØ ÀüÅëÀûÀ¸·Î Ä¡Àº ¾Ð¹è¼úÀÌ ½Ç½ÃµÇ¾î ¿Ô´Ù. ÇÏÁö¸¸ Ä¡Àº ¾Ð¹è¼úÀº Ä¡Àº ÅðÃà µîÀÇ ºÎÀÛ¿ëÀÌ ÀÖÀ¸¸ç ÃâÇ÷Àº ºÎÁ¤È®ÇÑ ÀλóäµæÀÇ ¿øÀÎÀÌ µÉ ¼ö ÀÖ´Ù. º» Áõ·Ê¿¡¼­´Â ÀÌ·¯ÇÑ ¹®Á¦Á¡µéÀ» ÇØ°áÇϱâ À§ÇØ º¸Ã¶¹°À» Á¦ÀÛÇÒ ¶§ Áßø °¡´ÉÇϵµ·Ï Á¦ÀÛµÈ ¸ÂÃãÇü Áö´ëÁÖ¸¦ ÀÌ¿ëÇÏ´Â »õ·Î¿î ¹æ¹ýÀ» Àû¿ëÇÏ¿´´Ù. Áö´ëÁÖ¸¦ ÀÓÇöõÆ®¿¡ ¿¬°áÇϱâ Àü Çü»óµ¥ÀÌÅ͸¦ ÀúÀåÇÏ°í, ÀÓÇöõÆ®¿¡ ¿¬°á ÈÄ Ä¡Àº ¾Ð¹è °úÁ¤ ¾øÀÌ ±¤ÇÐ ÀλóäµæÇÑ µÚ µÎ µ¥ÀÌÅ͸¦ ÁßøÇÏ¿© »óºÎº¸Ã¶¹°À» Á¦ÀÛÇÏ¿´´Ù. Ä¡Àº ¿¬ÇÏ º¯¿¬À» °¡Áö´Â ÀÓÇöõÆ® º¸Ã¶¹° Á¦ÀÛ ½Ã ½É¹Ì¼ºÀ» ¸¸Á·½ÃÅ°¸é¼­ ±âÁ¸ÀÇ Àλóäµæ ¹æ½Äº¸´Ù ºü¸£°í °£ÆíÇÏ¸ç ¿ì¼öÇÑ º¯¿¬ ¹× ³»¸éÀûÇÕµµ¸¦ º¸¿´±â¿¡ ÀÓ»óÀû È¿¿ë¼º¿¡ ´ëÇØ º¸°íÇÏ°íÀÚ ÇÑ´Ù.

Traditionally, gingival retraction has been performed to obtain customized abutment impressions with subgingival margins of the implant supported prosthesis. However, gingival retraction may have side effects such as gingival recession and bleed, leading to an inaccurate impression. In order to prevent these problems, in this case, the new technique has been introduced; a customized abutment which is designed for superimposition is used. Before the connection of the abutment to the implant fixture, pre-scanned shape data are stored, and then the optical impression without gingival retraction is obtained after connecting to the fixture. The suprastructure is fabricated by superimposing the two data. This technique showed the clinical efficacy of fabricating the implant supported prosthesis with subgingival margin, which satisfied the aesthetics, convenience, and clinically acceptable marginal and internal fit.

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¸ÂÃãÇü Áö´ëÁÖ; ±¸°­½ºÄ³³Ê; Ä¡Àº ¿¬ÇÏ º¯¿¬; Áßø
Customized abutment; Intraoral scanner; Subgingival margin; Superimposition

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