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Restoration of implant-supported fixed dental prosthesis using the automatic abutment superimposition function of the intraoral scanner in partially edentulous patients

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¹Ú±Ù¿ì, ¹ÚÁö¸¸, À̱ٿì,
¼Ò¼Ó »ó¼¼Á¤º¸
¹Ú±Ù¿ì ( Park Keun-Woo ) - Yonsei University College of Dentistry Department of Prosthodontics
¹ÚÁö¸¸ ( Park Ji-Man ) - Yonsei University College of Dentistry Department of Prosthodontics
À̱ٿì ( Lee Keun-Woo ) - Yonsei University College of Dentistry Department of Prosthodontics

Abstract

±¸°­ ½ºÄ³³Ê¸¦ ÀÌ¿ëÇÑ µðÁöÅÐ Àλó°ú CAD-CAM (Computer Aided Design-Computer Aided Manufacturing) ±â¼úÀº Á¡Â÷ ¹ßÀüÇÏ°í ÀÖ´Ù. ÀüÅëÀûÀÎ Àλó äµæ, ÀÛ¾÷¸ðÇüÀÇ Á¦ÀÛ, ¿Î½º ³³Çü Á¦ÀÛ ¹× ÁÖÁ¶ÀÇ º¹ÀâÇÑ °úÁ¤ÀÌ ´ÜÃàµÇ¾úÀ¸¸ç ȯÀÚÀÇ ¹æ¹® Ƚ¼öµµ ÁÙÀÏ ¼ö ÀÖ°Ô µÇ¾ú´Ù. ±¸°­ ½ºÄ³³Ê ±â¼úÀÇ ¹ßÀüÀ¸·Î µðÁöÅÐ ÀλóÀÇ Á¤¹Ðµµ¿Í Á¤È®¼ºÀÌ Çâ»óµÇ¾úÀ¸¸ç, ±× ÀûÀÀÁõÀº º¸´Ù ±¤¹üÀ§ÇÑ ºÎÀ§ÀÇ °íÁ¤¼º Ä¡°úº¸Ã¶¹°ÀÇ ¼öº¹À¸·Î Á¡Â÷ È®´ëµÇ¾îÁö°í ÀÖ´Ù. º» Áõ·Ê º¸°í¿¡¼­´Â ±¤¹üÀ§ÇÑ ºÎÀ§ÀÇ °íÁ¤¼º ÀÓÇöõÆ® º¸Ã¶¹°ÀÇ ¼öº¹À» À§ÇÏ¿©, ÄÄÇ»ÅÍ·Î °èȹÇÏ°í °¡ÀÌµå ¼ö¼ú¿ë ÅÛÇ÷¹ÀÌÆ®·Î ¿ÏÀüÈ÷ °¡À̵åµÈ ¼ö¼úÀ» ÇÏ°í, Áï½Ã/Á¶±â ÀÓÇöõÆ® º¸Ã¶¹°À» ÀåÂøÇÏ¿´À¸¸ç, Àӽà º¸Ã¶¹°¿¡¼­ ÃÖÁ¾ º¸Ã¶¹°·Î ÀüȯÇÏ´Â °úÁ¤¿¡¼­ ±¸°­½ºÄ³³ÊÀÇ Áö´ëÁÖ Áßø ¾Ë°í¸®ÁòÀ» È°¿ëÇÏ¿´´Ù. ÀÓÇöõÆ® ¼ö¼ú ´çÀÏ È¹µæÇÑ ±¸°­½ºÄµÀ¸·Î ¸ÂÃãÇü Áö´ëÁÖ¸¦ Æ÷ÇÔÇÑ Àӽà º¸Ã¶¹°À» Á¦ÀÛÇÏ¿© È°¿ëÇÏ¿´À¸¸ç, ÃÖÁ¾ º¸Ã¶¹°Àº Àӽà º¸Ã¶¹°¿¡¼­ÀÇ ¸ÂÃãÇü Áö´ëÁÖ¸¦ ³¤ ä·Î ±¸°­½ºÄµÇÏ¿© Á¦À۵Ǿú´Ù. ÀÌ °úÁ¤¿¡¼­ Àӽà º¸Ã¶¹° ÀåÂø Àü¿¡ ¹Ì¸® ½ºÄµÇؼ­ ¶óÀ̺귯¸®È­ÇÑ ¸ÂÃãÇü Áö´ëÁÖ µ¥ÀÌÅ͸¦ ±¸°­½ºÄ³³Ê ¼ÒÇÁÆ®¿þ¾î ¡®Áö´ëÁÖ ÀÚµ¿Áßø ±â´É¡¯À¸·Î ÃÖÁ¾ µðÁöÅÐ ÀÎ»ó¿¡ ÀÚµ¿ÀûÀ¸·Î ¸ÅĪÇÏ¿´°í, Ä¡Àº¿¬Çϸ¶ÁøÀÎ ºÎºÐµµ Áö´ëÁÖ¸¦ Å»°ÅÇÏÁö ¾Ê°í, Ä¡Àº¾Ð¹è»ç ¾øÀÌ Á¤¹ÐÇÏ°Ô È¹µæÇÒ ¼ö ÀÖ¾ú´Ù. ±¸°­½ºÄ³³Ê¿Í ¼ÒÇÁÆ®¿þ¾îÀÇ ´Ù¾çÇÑ ±â¼úÀ» ÀÀ¿ëÇÏ¿© ÀÓÇöõÆ® Ä¡·á °úÁ¤À» µðÁöÅÐ ¿öÅ©Ç÷οì·Î º¯È­½ÃÅ´À¸·Î½á, ȯÀÚ ºÒÆí°¨ ¹× Ä¡·á ½Ã°£À» ´ÜÃàÇÏ¿´À¸¸ç, ȯÀÚ¿Í ¼úÀÚ¿¡°Ô ¸ðµÎ ÀÌ·Ó°í ¿¹Áö¼º ÀÖ´Â Ä¡·á°¡ °¡´ÉÇÏ¿´´Ù.

The digital workflow of optical impressions by the intraoral scanner and CAD-CAM manufacture of dental prostheses is actively developing. The complex process of traditional impression taking, definite cast fabrication, wax pattern making, and casting has been shortened, and the number of patient¡¯s visits can also be reduced. Advances in intraoral scanner technology have increased the precision and accuracy of optical impression, and its indication is progressively widened toward the long span fixed dental prosthesis. This case report describes the long span implant case, and the operator fully utilized digital workflow such as computer-guided implant surgical template and CAD-CAM produced restoration after the digital impression. The provisional restoration and customized abutments were prepared with the optical impression taken on the same day of implant surgery. Moreover, the final prosthesis was fabricated with the digital scan while utilizing the same customized abutment from the provisional restoration. During the data acquisition step, stl data of customized abutments, previously scanned at the time of provisional restoration delivery, were imported and automatically aligned with digital impression data using an ¡®A.I. abutment matching algorithm¡¯ the intraoral scanner software. By using this algorithm, it was possible to obtain the subgingival margin without the gingival retraction or abutment removal. Using the digital intraoral scanner¡¯s advanced functions, the operator could shorten the total treatment time. So that both the patient and the clinician could experience convenient and effective treatment, and it was possible to manufacture a prosthesis with predictability.

Å°¿öµå

Áö´ëÁÖ ÀÚµ¿Áßø; ijµåÄ·; ¸ÂÃãÇü Áö´ëÁÖ; ±¸°­½ºÄ³³Ê
Automatic abutment matching; Computer-aided design-computer-aided manufacturing (CAD-CAM); Customized abutment; Intraoral scanner

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