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Comparative accuracy of implant impression techniques with different splinting materials

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È«±âÀ±, ½Å¼ö¿¬,
¼Ò¼Ó »ó¼¼Á¤º¸
È«±âÀ± ( Hong Ki-Yoon ) - 
½Å¼ö¿¬ ( Shin Soo-Yeon ) - 

Abstract

¸ñÀû: ÇÏ¾Ç ºÎºÐ ¹«Ä¡¾Ç ¸ðÇü¿¡¼­ pick-up type Àλó¿ë ÄÚÇÎÀ» »ç¿ëÇÑ °³¹æÇü Àλó äµæ¹ý°ú transfer type Àλó¿ë ÄÚÇÎÀ» »ç¿ëÇÑ Æó¼âÇü Àλó äµæ¹ý, °³¹æÇü Àλó äµæ¹ý¿¡¼­ pick-up type Àλó¿ë ÄÚÇÎ °íÁ¤ Àç·á¿¡ µû¸¥ Àλó äµæ Á¤È®¼ºÀ» ºñ±³ ÇÏ°íÀÚ ÇÏ¿´´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ÇÏ¾Ç ºÎºÐ ¹«Ä¡¾Ç ¸ðÇüÀÇ ÁÂÃø ±¸Ä¡ºÎ¿¡ Á÷°æ 4.5 mm, ±æÀÌ 11.5 mmÀÇ ÀÓÇöõÆ® °íÁ¤Ã¼ µÎ °³ ½Ä¸³ ÈÄ 3D ÇÁ¸°Å͸¦ ÀÌ¿ëÇÏ¿© °³¹æÇü °³ÀÎ Æ®·¹ÀÌ 30°³ Æó¼âÇü °³ÀÎ Æ®·¹ÀÌ 10°³¸¦ Á¦ÀÛÇÏ¿´´Ù. Á¦ÀÛÇÑ °³ÀÎ Æ®·¹À̸¦ ÀÌ¿ëÇÏ¿© PN±º: °³¹æÇü Àλó äµæ¹ý(non-splint), PG±º: °³¹æÇü Àλó äµæ¹ý(splint GC pattern resin), PH±º: °³¹æÇü Àλó äµæ¹ý(splint Herifix), TN±º: Æó¼âÇü Àλó äµæ¹ýÀ¸·Î ³ª´©¾î °¢ ±º´ç 10ȸ¾¿ ÃÑ 40ȸÀÇ Àλó äµæÀ» ÁøÇàÇÏ¿´´Ù. Àλóäµæ ÈÄ ¼®°í ¸ðÇüÀ» Á¦ÀÛÇÏ¿© ¸ðµ¨ ½ºÄ³³Ê·Î ½ºÄµ ÈÄ ¿ª¼³°è ÇÁ·Î±×·¥À¸·Î ½ºÄµ¿ÀÂ÷¸¦ ÃøÁ¤ÇÏ¿© 95% À¯ÀǼöÁØÀ¸·Î Æò°¡ÇÏ¿´´Ù.

°á°ú: Æó¼âÇü Àλó äµæ¹ý TN±ºÀÌ °³¹æÇü Àλó äµæ¹ý PN±º º¸´Ù ´õ ³·Àº ¿ÀÂ÷°ªÀ» º¸¿´´Ù. °³¹æÇü Àλó äµæ¹ý(splint)¿¡ »ç¿ëµÈ Àλó¿ë ÄÚÇÎ °íÁ¤ Àç·á °£ÀÇ ºñ±³ °á°ú¿¡¼­´Â PH±º¿¡¼­ °¡Àå ³·Àº ¿ÀÂ÷°ªÀ» º¸¿´À¸¸ç PN±º, PG±º ¼øÀ¸·Î Á¤È®ÇÑ Àλó äµæ Á¤È®¼ºÀ» º¸¿©ÁÖ¾ú´Ù.

°á·Ð: ÀÓÇöõÆ® Àλó äµæ ¹æ¹ýÀ̳ª Àλó¿ë ÄÚÇÎÀÇ ¿¬°á °íÁ¤ À¯¹«¿¡ µû¸¥ °¢ ±º °£ÀÇ Á¤È®¼º¿¡ À¯ÀÇÇÑ Â÷ÀÌ´Â ¾ø´Ù.

Purpose: We investigated the effect of open tray impression using pick-up impression coping and close tray impression using transfer impression coping on the accuracy of impression in edentulous patients on their mandibular parts. the effect of material types of pick-up type impression copings for splinting in open tray impression on the accuracy of impression was also evaluated.

Materials and Methods: Two implant fixtures were implanted in parallel in the left molar of the mandibular in the shape of a mandibular partial edentulous model. The 40 individual trays were fabricated using 3D printer. The prepared individual trays were classified into 4 groups (i.e., PN, PG, PH, and TN groups), and a total of 40 impression-takings were conducted. A master cast was connected to a Scan Body. The converted STL file was super-imposed on the scan images of the various groups.

Results: The order of standard deviation values decreased as follows: PN (0.2343 ¡¾ 0.0844 mm), TN (0.2192 ¡¾ 0.0840 mm), indicating that the high accuracy of impression for TN group. In addition, for the comparison results between the material types used in splinting the open tray impression, the PH group showed a relatively lower standard deviation (0.1910 ¡¾ 0.1176 mm) than that of the PN group (0.2343 ¡¾ 0.0844 mm), PG group (0.2556 ¡¾ 0.1082 mm).

Conclusion: The acrylic resin synthesized by light-induced polymerization exhibited a higher accuracy of impression taking than that of autopolymerizing acrylic resin. Meanwhile, the accuracy of impression taking was not dependent on the implant impression taking method or the presence of connection/fixation of impression copings.

Å°¿öµå

Á¤È®¼º; ¾ÆÅ©¸±¸¯ ·¹Áø; Àλó äµæ
accuracy; acrylic resin; impression

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