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A comparative study of impression methods using stock tray and intraoral scanner in a completely edentulous patient with an atypical arch shape: a case report

The Journal of Korean Academy of Prosthodontics 2023³â 61±Ç 4È£ p.344 ~ 355
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¹ÚÀçÈÆ ( Park Jae-Hoon ) - 
±èÁöÇö ( Kim Ji-Hyun ) - 
¼­Àç¹Î ( Seo Jae-Min ) - 
ÀÌÁ¤Áø ( Lee Jung-Jin ) - 
¹Ú¿¬Èñ ( Park Yeon-Hee ) - 

Abstract

ÃÑÀÇÄ¡ Á¦ÀÛ °úÁ¤ Áß Á¤È®ÇÑ ÃÖÁ¾ÀλóÀ» ¾ò±â À§Çؼ­´Â Á¤È®ÇÑ ¿¹ºñÀλó 䵿ÀÌ ¼±ÇàµÇ¾î¾ß ÇÑ´Ù. º» Áõ·Ê¿¡¼­´Â ºñÁ¤ÇüÀûÀÎ ¾Ç±Ã ÇüŸ¦ °¡Áø ȯÀÚ¿¡¼­ ±â¼º Æ®·¹ÀÌ ¹× ±¸°­ ½ºÄ³³Ê·Î 䵿ÇÏ¿© Á¦ÀÛÇÑ ¿¹ºñ¸ðÇü°ú °³ÀÎÆ®·¹À̸¦ ºñ±³ÇÏ¿´´Ù. 58¼¼ ³²ÀÚ È¯ÀÚ·Î »ó, ÇÏ¾Ç ÃÑÀÇÄ¡ Á¦ÀÛÀ» À§ÇØ º»¿ø ±¸°­¾Ç¾È¸é¿Ü°ú¿¡¼­ ÀǷڵǾú´Ù. »óÇϾDZà ¸ðµÎ Á¼°í ±ä ÇüÅ·ΠºñÁ¤ÇüÀûÀÎ ÇüŸ¦ º¸¿´´Ù. ±â¼º Æ®·¹À̸¦ ÀÌ¿ëÇÏ¿© 䵿ÇÑ ¿¹ºñ¸ðÇüÀº ±¸°­ ½ºÄ³³Ê¸¦ ÀÌ¿ëÇÑ ¿¹ºñ ¸ðÇü¿¡ ºñÇØ »ó¾ÇÀÇ °æ¿ì, ÇùÃøÀÇ º¯¿¬ÀÌ °ú¿¬ÀåµÇ¾ú°í, ÈÄ¹æ ±¸°³ Æó¼â ºÎÀ§¿¡¼­´Â ¾Ð¹ÚµÇ¾î ÀÖ¾ú´Ù. ¶ÇÇÑ ÇϾǿ¡¼­µµ °ú¿¬ÀåµÇ¾úÀ¸³ª, »ó¾Ç¿¡ ºñÇÏ¿© ±× ¾çÀÌ ¸¹Áö ¾Ê¾Ò´Ù. ±×¸®°í ±¸°­ ½ºÄ³³Ê¿¡ ÀÇÇØ 䵿µÈ ¿¹ºñ¸ðÇüÀº ±â¼º Æ®·¹À̷Π䵿µÈ ¿¹ºñ ¸ðÇü¿¡ ºñÇØ Àú¿¬ÀåµÇ¾úÀ¸³ª, ÇØºÎÇÐÀû ÁöÇ¥´Â ÃæºÐÈ÷ ÀαâµÇ¾ú´Ù. ±â¼º Æ®·¹ÀÌ¿¡ ÀÇÇØ Á¦ÀÛµÈ °³ÀÎ Æ®·¹ÀÌ´Â IOS¿¡ ÀÇÇØ Á¦ÀÛµÈ °³ÀÎ Æ®·¹ÀÌ¿¡ ºñÇÏ¿© ±¸°­ ³» ½ÃÀû ½Ã, °³ÀÎ Æ®·¹ÀÌÀÇ Á¶Á¤·®ÀÌ ¸¹¾Ò°í Áø·á ½Ã°£ÀÌ Áõ°¡ÇÏ¿´´Ù. º» Áõ·Ê¸¦ ÅëÇØ ºñÁ¤ÇüÀûÀÎ ¾Ç±ÃÀ» °¡Áø ȯÀÚ¿¡°Ô 3D ±¸°­ ½ºÄ³³Ê·Î ÀλóÀ» 䵿ÇÏ´Â °ÍÀÌ ´ë¾ÈÀÌ µÉ ¼ö ÀÖÀ½À» º¸°íÇÏ´Â ¹ÙÀÌ´Ù.

In complete denture fabrication, accurate preliminary impressions are crucial for obtaining an accurate final impression. However, it can be challenging in cases of atypical arch shapes. This case report compares diagnostic casts made with a stock tray and an intraoral scanner (IOS) in a patient with an atypical arch shape. A 58-year-old edentulous male patient with long, narrow, atypical arches was referred to the Oral and Maxillofacial Surgery department for complete denture fabrication. Compared to the diagnostic cast obtained using IOS with adequately captured anatomical parameters, the primary model obtained using a stock tray showed prominent overextended flanges on the labial and buccal sides of the maxillary arch and less prominent overextended flanges in the mandibular arch with pressure spots in the posterior palatal seal area. The custom tray fabricated from such a model required additional adjustment resulting in increased chair time during the final impression procedure.

Ű¿öµå

Digital impression; Edentulous jaw; Preliminary impression; Complete denture; 3-Dimensional (3D) analysis
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