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A study on the processing of dental ceramic composites by using laser

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ȲÁØÈ£ ( Hwang Jun-Ho ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡ÀÇ°úÇаú
±Ç¼º¹Î ( Kwon Sung-Min ) - °æºÏ´ëÇб³ ÷´ÜÁ¤º¸Åë½ÅÀ¶ÇÕ»ê¾÷±â¼ú¿ø
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±èÀÓ¼± ( Kim Im-Sun ) - ´ë±¸º¸°Ç´ëÇб³ Ä¡±â°ø°ú
À̱Ժ¹ ( Lee Kyu-Bok ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¸ñÀû: ·¹ÀÌÀú¸¦ ÀÌ¿ëÇÑ Ä¡°ú º¸Ã¶¹° ¼¼¶ó¹Í º¹ÇÕ¼ÒÀç Lava Ultimate¿Í IPS e.maxÀÇ °¡°ø¼º Æò°¡¸¦ ÇÏ°íÀÚ ÇÑ´Ù.

Àç·á ¹× ¹æ¹ý: 3M, Lava Ultimate¿Í Ivoclar vivadent, IPS e.maxÀÇ °¡°ø¼º Æò°¡¸¦ À§ÇØ CO2 ·¹ÀÌÀú, ÇÇÄÚÃÊ ·¹ÀÌÀú, ÆèÅäÃÊ ·¹ÀÌÀú¸¦ »ç¿ëÇÏ¿´À¸¸ç, °øÃÊ÷ Çö¹Ì°æÀ» ÀÌ¿ëÇÏ¿© °¡°ø Çü»óÀ» ºÐ¼®ÇÏ¿´´Ù.

°á°ú: ¼¼¶ó¹Í º¹ÇÕüÀÇ Ã뼺 ¹× źȭ, ±Õ¿­ µîÀº ¼ÒÀçÀÇ ¿­ÃàÀû¿¡ ¿µÇâÀ» ¹Þ°í ·¹ÀÌÀú Ãâ·Â ¹× ÆÞ½º ½Ã°£¿¡ ÀÇÇØ Á¦¾î°¡ °¡´ÉÇÔÀ»
¾Ë ¼ö ÀÖ¾ú´Ù.

°á·Ð: CO2 ·¹ÀÌÀú¸¦ ÀÌ¿ëÇÏ¿© ¼¼¶ó¹Í º¹ÇÕ¼ÒÀç °¡°ø ½Ã ¹Ì¼¼ ±Õ¿­°ú źȭ°¡ Áï½Ã ¹ß»ýÇÏ¿´À¸¸ç, ÇÇÄÚÃÊ ·¹ÀÌÀú °¡°øÀÇ °æ¿ì ¹Ì¼¼ ±Õ¿­Àº ÀϺΠ°³¼±µÇ¾úÀ¸³ª źȭ Çö»óÀº Áö¼ÓÀûÀ¸·Î ¹ß»ýµÇ¾ú´Ù. ÇÏÁö¸¸ ÆèÅäÃÊ ·¹ÀÌÀú¸¦ ÀÌ¿ëÇÑ ·¹ÀÌÀú °¡°ø ½Ã Ãâ·Â ´ëºñ ³ôÀº È¿À²ÀÇ °¡°ø¼ºÀ» È®ÀÎÇÏ¿´À¸¸ç, ƯÈ÷ ¼¼¶ó¹Í ·¹Áø º¹ÇÕ¼ÒÀçÀÎ Lava UltimateÀÇ °æ¿ì ÆèÅäÃÊ ·¹ÀÌÀú¸¦ ÀÌ¿ëÇÏ¿© °¡°ø ½Ã °¡Àå ¿ì¼öÇÑ °¡°ø¼ºÀ» º¸¿´´Ù.

Purpose: The laser processability of dental prosthesis is investigated using two ceramic composites, including 3M, Lava Ultimate and Ivoclar vivadent, IPS e.max.

Materials and methods: The CO2 laser, picosecond laser and femtosecond laser are used to assess the processing power of dental prosthetic materials Lava Ultimate and IPS e.max and the line processing shape was measured using a Confocal microscope.

Results: The brittleness, carbonization and micro crack of the ceramic composite were influenced by heat accumulation of the material and could be controlled by the laser power and pulse time.

Conclusion: In the case of CO2 lasers, micro crack and carbonation occurred immediately, and in the picosecond laser processing, the micro cracks are partially improved, but the carbonization occurs continuously. Finally, we confirmed the high efficiency of laser processing with femtosecond laser. In particular, Lava Ultimate, a ceramic resin composite material, showed the best processability when processed using a femtosecond laser.

Å°¿öµå

Ä¡°ú¿ë ¼¼¶ó¹Í ¼ÒÀç; ·¹ÀÌÀú °¡°ø¼º; ÇÇÄÚÃÊ ·¹ÀÌÀú; ÆèÅäÃÊ ·¹ÀÌÀú; CO2 ·¹ÀÌÀú
Dental ceramic composites; Laser processing; Picosecond laser; Femtosecond laser; CO2 laser

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