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Accuracy of implant digital scans with different intraoral scanbody shapes and library merging according to different oral exposure height

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Á¤º´ÁØ, ÀÌ¿µÈÄ, È«¼ºÁø, ¹éÀåÇö, ³ë°üÅÂ, ¹è¾Æ¶õ, ±èÇü¼·, ±Ç±à·Ï,
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Á¤º´ÁØ ( Jeong Byung-Joon ) - Kyung Hee University School of Dentistry Department of Prosthodontics
ÀÌ¿µÈÄ ( Lee Young-Hoo ) - Kyung Hee University School of Dentistry Department of Prosthodontics
È«¼ºÁø ( Hong Seoung-Jin ) - Kyung Hee University School of Dentistry Department of Prosthodontics
¹éÀåÇö ( Paek Jang-Hyun ) - Kyung Hee University School of Dentistry Department of Prosthodontics
³ë°üÅ ( Noh Kwan-Tae ) - Kyung Hee University School of Dentistry Department of Prosthodontics
¹è¾Æ¶õ ( Pae Ah-Ran ) - Kyung Hee University School of Dentistry Department of Prosthodontics
±èÇü¼· ( Kim Hyeong-Seob ) - Kyung Hee University School of Dentistry Department of Prosthodontics
±Ç±à·Ï ( Kwon Kung-Rock ) - Kyung Hee University School of Dentistry Department of Prosthodontics

Abstract

¸ñÀû: ÇöÀç ÀÓ»ó¿¡¼­ ½ºÄµ¹Ùµð¸¦ ÀÌ¿ëÇÑ ÀÓÇöõÆ®ÀÇ µðÁöÅÐ ÀλóÀÌ È°¿ëµÇ°í ÀÖÀ¸³ª ½ºÄµ¹ÙµðÀÇ ÇüÅ¿¡ µû¸¥ ½ºÄµÀÇ Á¤È®µµ¿¡ ´ëÇÑ ¿¬±¸´Â ºÎÁ·ÇÑ ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº ±¸³» ½ºÄµ¹ÙµðÀÇ ÇüÅ¿¡ µû¸¥ ½ºÄµÀÇ Á¤È®µµ¸¦ ºñ±³ÇÏ°í, ±¸°­ ³» ³ëÃâ ³ôÀÌ¿¡ µû¸¥ ¶óÀ̺귯¸® Áßø Á¤È®µµ¸¦ ºñ±³Çϱâ À§ÇÔÀÌ´Ù.

Àç·á ¹× ¹æ¹ý: µ§Æ¼Æû »ó¿¡¼­ 36¹ø Ä¡¾Æ¸¦ »èÁ¦ ÈÄ ¸ðµ¨ ½ºÄ³³Ê·Î ½ºÄµÇÏ¿© 3D ÇÁ¸°ÅÍ·Î ÁÖ¸ðÇüÀ» Ãâ·ÂÇÏ¿´´Ù. ù ¹ø° ½ÇÇèÀ¸·Î ¼¼ Á¾·ù(A, B, C)ÀÇ ±¸³» ½ºÄµ¹Ùµð¸¦ ÁغñÇÏ¿© °¢ ±×·ì¸¶´Ù ´ÙÀ½°ú °°Àº ½ÇÇèÀ» ÇÏ¿´´Ù: 36¹ø ºÎÀ§¿¡ ÀÓÇöõÆ®¸¦ ÀÌ»óÀûÀÎ À§Ä¡·Î ½Ä¸³ ÈÄ ½ºÄµ¹Ùµð¸¦ 15 NÀ¸·Î ü°áÇÏ¿´´Ù. ½ºÄµ¹Ùµð°¡ ü°áµÈ ÁÖ¸ðÇüÀ» ¸ðµ¨ ½ºÄ³³Ê·Î ½ºÄµÇÏ¿© master reference file (´ëÁ¶±º)À» STL (Standard Tessellation Language) file·Î »ý¼ºÇÏ¿´´Ù. ÀÌÈÄ ±¸°­ ½ºÄ³³Ê·Î 10ȸÀÇ ¿¬¼ÓÀûÀÎ ½ºÄµÀ» ½ÃÇàÇÏ¿© 10°³ÀÇ STL file (½ÇÇ豺)À» »ý¼ºÇÏ¿´´Ù. 3D ÃøÁ¤ ¼ÒÇÁÆ®¿þ¾î¸¦ ÀÌ¿ëÇÏ¿© ´ëÁ¶±º°ú ½ÇÇ豺µéÀÇ STL fileµéÀ» ÁßøÇÑ ÈÄ ÁÂÇ¥°è »ó¿¡¼­ ´ÙÀ½°ú °°Àº °ªµéÀ» µµÃâÇÏ¿´´Ù: 1) ½ºÄµ¹Ùµð »ó ƯÁ¤ pointÀÇ °Å¸® ÆíÂ÷ 2) ½ºÄµ¹Ùµð ÀåÃàÀÇ °¢µµ ÆíÂ÷. µÎ ¹ø° ½ÇÇèÀ¸·Î´Â ½ºÄµ¹ÙµðÀÇ ±¸°­³» ³ëÃâ ³ôÀÌ¿¡ µû¸¥ ¶óÀ̺귯¸® Áßø Á¤È®µµ¸¦ ºñ±³Çϱâ À§ÇØ ½ºÄµ¹Ùµð ½ºÄµ µ¥ÀÌÅ͸¦ 7,4.5, 2.5, 1.5, 1.0, 0.5 mm ÃÑ 6 °¡Áö ³ôÀÌ·Î ÁغñÇÏ¿© ¶óÀ̺귯¸® ÆÄÀÏ°ú ÁßøÇÏ¿´´Ù. Àüü°¡ ³ëÃâµÈ 7 mm µ¥ÀÌÅ͸¦ ´ëÁ¶±ºÀ¸·Î ÇÏ¿© °Å¸® ÆíÂ÷¿Í °¢µµ ÆíÂ÷¸¦ °è»êÇÏ¿´´Ù.

°á°ú: ù ¹ø° ½ÇÇè¿¡¼­ A, B ½ºÄµ¹Ùµð °£(P = .278), B, C ½ºÄµ¹Ùµð °£(P = .568), C, A ½ºÄµ¹Ùµð °£(P = .711) ½ºÄµ ÆÄÀÏÀÇ °Å¸® ÆíÂ÷ ¸ðµÎ À¯ÀÇÇÑ Â÷ÀÌ°¡ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. A, B ½ºÄµ¹Ùµð °£(P= .568), B, C ½ºÄµ¹Ùµð °£(P = .546), C, A ½ºÄµ¹Ùµð °£(P = .112) ½ºÄµ ÆÄÀÏÀÇ °¢µµ ÆíÂ÷ ¶ÇÇÑ ¸ðµÎ À¯ÀÇÇÑ Â÷ÀÌ°¡ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ¶ÇÇÑ ½ºÄµ¹Ùµð´Â ±¸°­ ³» ³ëÃâ ³ôÀÌ°¡ ³ôÀº ½ÇÇ豺 (GH,Gingival Height = 4.5)ÀÇ ¶óÀ̺귯¸® Áßø Á¤È®µµ°¡ ³ôÀÌ°¡ ³·Àº ½ÇÇ豺(GH = 0.5)º¸´Ù Åë°èÀûÀ¸·Î À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù (P < .05).

°á·Ð: ½ºÄµ¹ÙµðÀÇ °¢±â ´Ù¸¥ ÇüÅ¿¡ µû¸¥ ½ºÄµ Á¤È®µµ´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸¸ç, ½ºÄµ¹ÙµðÀÇ ±¸°­ ³» ³ëÃâ ³ôÀÌ¿¡ µû¶ó ¶óÀ̺귯¸® ÁßøÀÇ Á¤È®µµ´Â Áõ°¡ÇÑ´Ù. ÃßÈÄ in vivo ȯ°æ¿¡¼­ ´õ ´Ù¾çÇÑ ÇüÅÂÀÇ ½ºÄµ¹Ùµð¸¦ ÀÌ¿ëÇÑ Èļӿ¬±¸°¡ ÇÊ¿äÇÒ °ÍÀÌ´Ù.

Purpose: The purpose of this study is to compare the accuracy of digital scans of implants according to different shapes of scanbodies, and to compare the accuracy of library merging according to different oral exposure height.

Materials and methods: A master model with a single tooth edentulous site was prepared. For the first experiment, three types of intraoral scanbodies were prepared, divided into three groups, and the following experiments were conducted for each group: An internal hex implant was placed. The master model with the scanbody connected was scanned with a model scanner, and a master reference file (control group) was created. 10 files (experimental group) were created by performing 10 consecutive scans with an intraoral scanner. After superimposing the control and experimental groups, the following values were calculated: 1) Distance deviation of a designated point on the scanbody 2) Angle deviation of the major axis of the scanbody. For the second experiment, the scanbody scan data were prepared in 6 different heights. Library files were merged with each of the scan data. The distance and angular deviation were calculated using the 7 mm scan data as control group.

Results: In the first experiment, there were no significant differences between A and B (P=.278), B and C (P=.568), and C and A (P=.711) in the distance deviations. There were no significant differences between A and B (P=.568), B and C (P=.546), and C and A (P=.112) in the angular deviations. Also, the scanbody showed significantly higher library merging accuracy in the groups with high oral exposure height (P<.5).

Conclusion: There were no significant differences in scan accuracy according to the different shapes of scanbodies, and the accuracy of library merging increased according to exposure height of the scanbody in the oral cavity.

Å°¿öµå

Ä¡°ú ÀÓÇöõÆ®; µðÁöÅÐ ½ºÄµ; ½ºÄµ¹Ùµð
Dental implant; Digital scan; Scanbody

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