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Evaluation of the dimensional change of 3D-printed complete denture after post-curing

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À̼ö¿¬ ( Lee Su-Yeon ) - Chosun University College of Dentistry Department of Prosthodontics
°û¿µÈÆ ( Kwak Young-Hun ) - Chosun University College of Dentistry Department of Prosthodontics
¹ÚÀºÃ¶ ( Park Eun-Chul ) - Chosun University College of Dentistry Department of Prosthodontics
±èÈñÁß ( Kim Hee-Jung ) - Chosun University College of Dentistry Department of Prosthodontics

Abstract

¸ñÀû: ÀÌ ¿¬±¸¸ñÀûÀº 3Â÷¿ø ÇÁ¸°ÆÃÀÇÄ¡ÀÇ ÈÄ°æÈ­ÈÄ·Î ÀÎÇÑ ÀÇÄ¡ÀÇ Ã¼Àûº¯È­¸¦ Æò°¡ÇÏ°íÀÚÇÏ¿´´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: »ó¡¤ÇÏ¾Ç ÀÇÄ¡¸¦ Exocad DentalCaD ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© µðÀÚÀÎÇÏ¿´À¸¸ç, STL ÆÄÀÏ·Î ÃßÃâÇÏ¿´´Ù. DLP ¹æ½ÄÀÇ Ä¡°ú¿ë 3Â÷¿ø Çø°Å͸¦ ÀÌ¿ëÇÏ¿© »ó¡¤ÇÏ¾Ç ÀÇÄ¡ STLÆÄÀÏÀ» »ó¡¤ÇÏ¾Ç °¢±â 10°³¾¿ Ãâ·ÂÇÏ¿´´Ù. Ãâ·ÂµÈ »ó¡¤ÇÏ¾Ç ÀÇÄ¡´Â ¼¼Ã´ÇÏ¿´°í, ÈÄ°æÈ­¸¦ ½ÃÇàÇϱâÀü°ú ÈÄ¿¡ °¢ °¢ ¸ðÇü½ºÄ³³Ê¸¦ ÀÌ¿ëÇÏ¿© ½ºÄµÆÄÀÏÀ» ¸¸µé¾ú´Ù. ÈÄ°æÈ­ ÀüÈÄÀÇ ½ºÄµµÈ ÀÇÄ¡ÆÄÀÏÀ» ÁßøÇÏ¿© º¯È­¸¦ Æò°¡ÇÏ¿´À¸¸ç, ÀÇÄ¡»óÀÇ °èÃøÁ¡»çÀÌÀÇ °Å¸®¸¦ ÃøÁ¤ÇÏ¿´´Ù. Åë°è´Â SPSS¸¦ ÀÌ¿ëÇÏ¿´À¸¸ç, À¯ÀǼöÁØÀº 5%¿´´Ù.

°á°ú: »ó¾ÇÀÇÄ¡´Â ÈÄ°æÈ­ ÈÄ¿¡ Àü¹ÝÀûÀ¸·Î ¼öÃàÇÏ¿´À¸¸ç, Èı¸°³ºÎÀ§¿¡¼­ °¡Àå ¶Ñ·ÇÇÑ º¯È­¸¦ º¸¿´´Ù. »ó¾ÇÀÇÄ¡ ÀüÈĹæ(A-D, A-E, A-F)ÀÇ ±æÀÌ¿Í ¾çÃøÁ¦1´ë±¸Ä¡»çÀÌ(B-C)ÀÇ ±æÀÌ °¨¼Ò°¡ Åë°èÇÐÀûÀ¸·Î À¯ÀǼºÀ» º¸¿´´Ù. ÇϾÇÀÇÄ¡´Â ÈÄ°æÈ­ ÈÄ¿¡ ÀüÈĹæÀÇ ±æÀ̺¯È­º¸´Ù´Â Æø°æÀÇ º¯È­°¡ ºñ±³Àû ¶Ñ·ÇÇÏ¿´´Âµ¥, ÀÇÄ¡ÈĹæ(A-M, A-D, A-E, A-L, A-H, A-I, H-I)°ú ¼³Ãø(J-K, L-M)¿¡¼­ Åë°èÇÐÀûÀ¸·Î À¯ÀǼºÀÖ´Â ±æÀ̺¯È­°¡ °üÂûµÇ¾ú´Ù.

°á·Ð: ÀÌ ½ÇÇèÀÇ °á°ú³»¿¡¼­, 3Â÷¿ø ÇÁ¸°ÅÍ·Î Ãâ·ÂµÇ´Â »ó¡¤ÇÏ¾Ç ÀÇÄ¡´Â ÈÄ°æÈ­ ÈÄ¿¡ ±æÀÌ¿Í ÆøÀÌ ¸ðµÎ º¯È­ÇÏ¿´´Ù. °á·ÐÀûÀ¸·Î, ÀÇÄ¡ÀÇ º¯ÇüÀ» ÃÖ¼ÒÈ­ÇÒ ¼ö ÀÖ´Â ÈÄ°æÈ­ ¹æ¹ý°ú Àç·áÀÇ °³¹ßÀÌ ÇÊ¿äÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.

Purpose: The purpose of this study was to assess the dimensional change of 3D-printed dentures after post-curing.

Materials and Methods: The upper and lower dentures were designed in Exocad DentalCAD software and exported as STL files. The upper and lower dentures were printed from 10 STL files using a DLP-type dental 3D printer. The printed upper and lower dentures were cleaned, and a scan file was created using a model scanner before and after post-curing. The dimensional change was evaluated by superimposing the scanned denture files before and after post-curing and measuring the distance between measurement points on the denture. SPSS was used for statistics, and the level of significance was 5%.

Results: The maxillary denture reduced in size during post-curing, with the most notable color change occurring in the posterior palatal region. The reduction in anteroposterior maxillary denture length (A-D, A-E, A-F), as well as the distance between the first molars on both sides (B-C), was statistically significant. After post-curing, the mandibular denture showed more noticeable color change in the posteriorly buccal and lingual region. The decrease of length on the posterior (A-M, A-D, A-E, A-L, A-H, A-I, H-I) and lingual (J-K, L-M) sides of the denture were statistically significant.

Conclusion: There was significant dimensional change in both the length and width of the 3D-printed maxillary and mandibular dentures after post-curing in this experiment. Consequently, it is seemed necessary to develop post-curing techniques and materials that reduce such denture deformation.

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ÈÄ°æÈ­; üÀûº¯È­; 3Â÷¿ø ÇÁ¸°Æà ÀÇÄ¡; ±æÀÌ; Æø°æ
post-curing; dimensional change; 3-D printed denture; length; width

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