Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

ÀûÃþ°¡°ø°ú Àý»è°¡°øÀ¸·Î Á¦ÀÛÇÑ ÀÇÄ¡»ó°ú Á÷Á¢ ÷»ó¿ë ·¹Áø °£ÀÇ ÀÎÀå°áÇÕ°­µµ ºñ±³

Tensile bond strength of chairside reline resin to denture bases fabricated by subtractive and additive manufacturing

´ëÇÑÄ¡°úº¸Ã¶ÇÐȸÁö 2020³â 58±Ç 3È£ p.177 ~ 184
±èÈ¿¼º, Á¤ÁöÇý, ¹èÁö¸í, ±èÁ¤¹Ì, ±èÀ¯¸®,
¼Ò¼Ó »ó¼¼Á¤º¸
±èÈ¿¼º ( Kim Hyo-Seong ) - Wonkwang University School of Dentistry Department of Prosthodontics
Á¤ÁöÇý ( Jung Ji-Hye ) - Wonkwang University School of Dentistry Department of Prosthodontics
¹èÁö¸í ( Bae Ji-Myung ) - Wonkwang University School of Dentistry Department of Dental Biomaterials
±èÁ¤¹Ì ( Kim Jeong-Mi ) - Wonkwang University Dental Hospital Dental Laboratory
±èÀ¯¸® ( Kim Yu-Lee ) - Wonkwang University School of Dentistry Department of Prosthodontics

Abstract

¸ñÀû: º» ¿¬±¸ÀÇ ¸ñÀûÀº Àý»è°¡°ø°ú ÀûÃþ°¡°øÀ¸·Î Á¦ÀÛÇÑ ÀÇÄ¡»ó°ú Á÷Á¢ ÷»ó¿ë ·¹Áø°úÀÇ ÀÎÀå°áÇÕ°­µµ¸¦ ¿­ÁßÇÕÇü ÀÇÄ¡»ó°ú Á÷Á¢ ÷»ó¿ë ·¹ÁøÀÇ ÀÎÀå °áÇÕ°­µµ¿Í ºñ±³ ¹× Æò°¡ÇÏ¿© Àý»è°¡°ø°ú ÀûÃþ°¡°øÀ¸·Î Á¦ÀÛÇÑ ÀÇÄ¡»óÀÇ Á÷Á¢ ÷»óÀ» ÀÓ»ó¿¡ È°¿ëÇÏ°íÀÚ ÇÏ´Â °ÍÀÌ´Ù.

Àç·á ¹× ¹æ¹ý: ¿­ÁßÇÕÇü ÀÇÄ¡»ó ·¹Áø(Lucitone 199), Àý»è°¡°ø¿ë ÀÇÄ¡»ó ·¹Áø(VITA VIONIC BASE), ÀûÃþ°¡°ø¿ë ÀÇÄ¡»ó ·¹Áø(NextDent Base)À» ÀÌ¿ëÇØ °¡·Î 25 mm ¡¿ ¼¼·Î 25 mm ¡¿ ³ôÀÌ 3 mmÀÇ Á÷À°¸éü ÇüÅ·ΠÁ¦ÀÛÇÏ¿´´Ù. Á¦ÀÛÇÑ ÀÇÄ¡»ó ·¹Áø ½ÃÆíÀ» 30ÀÏ°£ 37°C Áõ·ù¼ö¿¡ º¸°üÇÑ µÚ, °ÇÁ¶ÇÏ¿© ÀÚ°¡ÁßÇÕÇü polyethyl methacrylate (PEMA) Á÷Á¢ ÷»ó¿ë ·¹Áø(REBASE II Normal)À» »ç¿ëÇØ °áÇÕÇÏ¿´´Ù. Àý»è°¡°ø°ú ÀûÃþ°¡°ø¿ë ÀÇÄ¡»ó ·¹ÁøÀ» ½ÇÇ豺À¸·Î, ¿­ÁßÇÕÇü ÀÇÄ¡»ó ·¹ÁøÀ» ´ëÁ¶±ºÀ¸·Î ¼³Á¤ÇÏ°í °¢ ±º ´ç 10°³ÀÇ ½ÃÆíÀ» Á¦ÀÛÇÏ¿´´Ù. ¸ðµç ½ÃÆíÀ» 24½Ã°£ µ¿¾È 37°C Áõ·ù¼ö¿¡ º¸°üÇÑ µÚ ²¨³»¾î ¸¸´É ½ÃÇè±â¸¦ ÀÌ¿ëÇØ 10 mm/minÀÇ cross head speed·Î ÀÎÀå°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ¿´°í, ÆÄÀý ¾ç»óÀ» °üÂûÇÏ¿© Á¢Âø ÆÄÀý, ÀÀÁý ÆÄÀý, È¥ÇÕ ÆÄÀý·Î ºÐ·ùÇÏ¿´´Ù. ÀÇÄ¡»óÀÇ Á¦ÀÛ ¹æ¹ý¿¡ µû¸¥ Á÷Á¢ ÷»ó¿ë ·¹Áø°úÀÇ ÀÎÀå°áÇÕ°­µµ¸¦ ÀÏ¿ø¹èÄ¡ ºÐ»êºÐ¼®À¸·Î ºÐ¼®ÇÏ¿´°í »çÈÄ°ËÁ¤(Bonferroni¡¯s method)À» ½ÃÇàÇÏ¿´´Ù (¥á= .05).

°á°ú: Àý»è°¡°ø¿ë ÀÇÄ¡»ó ·¹Áø°ú Á÷Á¢ ÷»ó¿ë ·¹Áø°úÀÇ ÀÎÀå°áÇÕ°­µµ(2.33 ¡¾ 0.39 MPa)´Â ¿­ÁßÇÕÇü ÀÇÄ¡»ó°ú Á÷Á¢ ÷»ó¿ë ·¹Áø°úÀÇ ÀÎÀå°áÇÕ°­µµ(2.45 ¡¾ 0.39 MPa)¿Í Åë°èÀûÀ¸·Î À¯ÀǼº ÀÖ´Â Â÷ÀÌ°¡ ¾ø¾ú´Ù (P > .999). ÀûÃþ°¡°øÇÑ ÀÇÄ¡»ó ·¹Áø°ú Á÷Á¢ ÷»ó¿ë ·¹Áø°úÀÇ ÀÎÀå°áÇÕ°­µµ(1.23 ¡¾ 0.36 MPa)´Â ³ª¸ÓÁö µÎ ±ºº¸´Ù À¯ÀǼº ÀÖ°Ô ³·¾Ò´Ù (P < .001). ¿­ÁßÇÕÇü°ú Àý»è°¡°øÇÑ ÀÇÄ¡»ó¿¡¼­´Â È¥ÇÕ ÆÄÀýÀÌ °¡Àå ¸¹ÀÌ ³ªÅ¸³µÀ¸¸ç, ÀûÃþ°¡°øÇÑ ÀÇÄ¡»ó¿¡¼­´Â È¥ÇÕ ÆÄÀý°ú Á¢Âø ÆÄÀýÀÌ µ¿ÀÏÇÑ ºóµµ·Î ³ªÅ¸³µ´Ù.

°á·Ð: Á÷Á¢ ÷»ó¿ë ·¹Áø°ú ´Ù¾çÇÑ ¹æ¹ýÀ¸·Î Á¦ÀÛÇÑ ÀÇÄ¡»óÀÇ ÀÎÀå°áÇÕ°­µµ¸¦ ºñ±³ÇÏ¿´À» ¶§ ÀûÃþ°¡°øÀ¸·Î Á¦ÀÛÇÑ ÀÇÄ¡»óÀº Àý»è°¡°øÀ¸·Î Á¦ÀÛÇÑ ÀÇÄ¡»ó, ¿­ÁßÇÕÇü ÀÇÄ¡»óº¸´Ù À¯ÀÇÇÏ°Ô ³·Àº ÀÎÀå°áÇÕ°­µµ¸¦ º¸¿´´Ù.

Purpose: The purpose of this study was to compare and evaluate the tensile bond strength of chairside reline resin to denture base resin fabricated by different methods (subtractive manufacturing, additive manufacturing, and conventional heat-curing).

Materials and methods: Denture base specimens were fabricated as cuboid specimens with a width of 25 mm ¡¿ length 25 mm ¡¿ height 3 mm by subtractive manufacturing (VITA VIONIC BASE), additive manufacturing (NextDent Base) and conventional heat-curing (Lucitone 199). After storing the specimens in distilled water at 37°C for 30 days and drying them, they were relined with polyethyl methacrylate (PEMA) chairside reline resin (REBASE II Normal). The subtractive and additive manufacturing groups were set as the experimental group, and the heat-curing group was set as the control group. Ten specimens were prepared for each group. After storing all bound specimens in distilled water at 37°C for 24 hours, the tensile bond strength between denture bases and chairside reline resin was measured by a universal testing machine at a crosshead speed of 10 mm/min. The fracture pattern of each specimen was analyzed and classified into adhesive failure, cohesive failure, and mixed failure. Tensile bond strength, according to the fabrication method, was analyzed by 1-way ANOVA and Bonferroni¡¯s method (¥á=.05).

Results: Mean tensile bond strength of the heat-curing group (2.45 ¡¾ 0.39 MPa) and subtractive manufacturing group (2.33 ¡¾ 0.39 MPa) had no significant difference (P>.999). The additive manufacturing group showed significantly lower tensile bond strength (1.23 ¡¾ 0.36 MPa) compared to the other groups (P<.001). Most specimens of heat-curing and subtractive manufacturing groups had mixed failure, but mixed failure and adhesive failure showed the same frequency in additive manufacturing group.

Conclusion: The mean tensile bond strength of the subtractive manufacturing group was not significantly different from the heat-curing group. The additive manufacturing group showed significantly lower mean tensile bond strength than the other two groups.

Å°¿öµå

Computer-aided design/Computer-aided manufacturing (CAD/CAM); ÀÇÄ¡»ó; ÀÇÄ¡ ÀÌÀåÀç; ÀÇÄ¡»ó °³»ó; ÀÎÀå°áÇÕ°­µµ
Computer-aided design/Computer-aided manufacturing (CAD/CAM); Denture base; Denture liners; Denture rebasing; Tensile bond strength

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

  

µîÀçÀú³Î Á¤º¸

KCI
KoreaMed