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3Â÷¿ø ±¤ÇÐ ½ºÄ³³Ê¿Í ÄܺöCT¿¡¼­ »ý¼ºµÈ µðÁöÅÐ ¸ðÇüÀÇ ºñ±³

Comparison of digital models generated from three-dimensional optical scanner and cone beam computed tomography

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±ÇÇõÁø:Kwon Hyuk-Jin ±è°¢±Õ:Kim Kack-Kyun/ÀÌ¿øÁø:Lee Won-Jin

Abstract

¸ñÀû: º» ¿¬±¸¿¡¼­´Â ½ÇÁ¦ ȯÀÚÀÇ ¼®°í¸ðÇüÀÇ ÄܺöCT (Cone Beam Computed Tomography)À̹ÌÁö·Î µðÁöÅÐ ¸ðµ¨À» Á¦ÀÛÇÏ°í ÀÌ µðÁöÅÐ ¸ðµ¨À» µ¿ÀÏÇÑ ¼®°í¸ðÇüÀ» 3Â÷¿ø ±¤ÇÐ ½ºÄ³³Ê·Î ½ºÄµ ÇÏ¿© ¾òÀº µðÁöÅÐ ¸ðµ¨°ú ºñ±³ÇÏ¿´´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ÃÑ 11½ÖÀÇ ¼®°í¸ðÇü¿¡ ´ëÇÏ¿© ½ÇÇèÀ» ÁøÇà ÇÏ¿´´Ù. ÄܺöCT¸¦ ÀÌ¿ëÇÏ¿© CT ¿µ»óÀ» ÃÔ¿µÇÏ¿© µðÁöÅÐ ¸ðµ¨À» Á¦ÀÛ ÇÏ¿´°í 3Â÷¿ø ±¤ÇÐ ½ºÄ³³Ê¸¦ »ç¿ëÇØ ´ëÁ¶±ºÀÌ µÇ´Â µðÁöÅÐ ¸ðµ¨À» Á¦ÀÛÇÏ¿´´Ù. À̸¦ ÀÌ¿ëÇØ °¢ ¼®°í¸ðÇü¿¡ ´ëÇÏ¿© ÄܺöCT¿Í 3Â÷¿ø ±¤ÇÐ ½ºÄ³³Ê¸¦ ÀÌ¿ëÇÏ¿© ¸¸µç µðÁöÅÐ ¸ðµ¨À» ÇÑ ½ÖÀ¸·Î ¹­¾î »ó, ÇÏ¾Ç 11°³ÀÇ ºñ±³ ½ÖÀ» ±¸¼ºÇÏ°í °¢ ½Ö¿¡ ´ëÇÏ¿© Â÷ÀÌÁ¡À» ºÐ¼®ÇÏ¿´´Ù.

°á°ú: ´ëÁ¶±º°ú ºñ±³ ½Ã ÄܺöCT ¿µ»óÀ¸·ÎºÎÅÍ ±¸¼ºµÈ µðÁöÅÐ ¸ðµ¨ÀÌ ´ëÁ¶±º º¸´Ù °ú´Ù ÃßÁ¤µÈ ºÎºÐÀÎ ¾çÀÇ ¿ÀÂ÷ÀÇ Æò±ÕÀº 0.059 - 0.117 mm, °ú¼Ò ÃßÁ¤µÈ ºÎºÐÀÎ À½ÀÇ ¿ÀÂ÷ÀÇ Æò±ÕÀº 0.066 - 0.146 mmÀÇ ¹üÀ§ ³»¿¡ Á¸ÀçÇß´Ù. ¶ÇÇÑ À¯ÀǼöÁØ 0.05¿¡¼­ ¾çÀÇ ¿ÀÂ÷ÀÇ Æò±ÕÀº 70 - 100 ¥ìm, À½ÀÇ ¿ÀÂ÷ÀÇ Æò±ÕÀº 100 - 120 ¥ìm ³»¿¡ Á¸Àç ÇÔÀ» È®ÀÎÇÏ¿´´Ù.

°á·Ð: ¼®°í¸ðÇüÀÇ ÄܺöCT ¿µ»óÀ¸·ÎºÎÅÍ ±¸¼ºµÈ µðÁöÅÐ ¸ðµ¨Àº ÃÖÁ¾ ¼öº¹¹° Á¦ÀÛ¿¡´Â ºÎÀûÇÕÇϳª Àӽüöº¹¹° Á¦ÀÛ ¹× ±³Á¤ Áø´Ü °úÁ¤¿¡ È°¿ëµÉ ¼ö ÀÖ´Â °¡´É¼ºÀÌ ÀÖ´Ù.

Purpose: The objective of this study was to compare the accuracy of digital models from 3 dimentional (3D) optical scanner and cone beam computed tomography (CBCT).

Materials and Methods: We obtained digital models from 11 pairs of stone casts using a 3D optical scanner and a CBCT, and compared the accuracy of the models.

Results: The error range of average positive distance was 0.059 - 0.117 mm and negative distance was 0.066 - 0.146 mm. Statistically (P < 0.05), average positive distance was larger than 70 ¥ìm and shorter than 100 ¥ìm, and that of negative distance was larger than 100 ¥ìm and shorter than 120 ¥ìm.

Conclusion: We concluded that the accuracy of digital models generated from CBCT is not appropriate to make final prostheses. However, it may be acceptable for provisional restorations and orthodontic diagnoses with respect to the accuracy of the digitalization. (J Dent Rehabil Appl Sci 2016;32(1):60-9)

Å°¿öµå

Ä¡°úÁÖÁ¶¹ý; Ä¡°ú¿ëµðÁöÅÐ ¹æ»ç¼±; Ä¡°ú ¸ðÇü; ÄܺöCT
dental casting technique; dental digital radiography; dental models; cone beam computed tomography

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