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PROPOSAL OF NEW DENIAL COLOR-SPACE FOR AESTHETIC DENIAL MATERIALS

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¿ÀÀ±Á¤ ( Oh Yun-Jeong ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ º¸Á¸Çб³½Ç
¹Ú¼öÁ¤ ( Park Su-Jung ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ º¸Á¸Çб³½Ç
±èµ¿ÁØ ( Kim Dong-Jun ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ º¸Á¸Çб³½Ç
Á¶Çö±¸ ( Cho Hyun-Gu ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ º¸Á¸Çб³½Ç
ȲÀ±Âù ( Hwang Yun-Chan ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ º¸Á¸Çб³½Ç
¿À¿ø¸¸ ( Oh Won-Mann ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ º¸Á¸Çб³½Ç
ȲÀγ² ( Hwang In-Nam ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ º¸Á¸Çб³½Ç

Abstract

º» ¿¬±¸´Â »õ·Î¿î Ä¡°ú¿ë »öü°è °³¹ßÀ» ¸ñÀûÀ¸·Î ÇöÀç Ä¡°ú¿¡¼­ »ç¿ëµÇ°í ÀÖ´Â Vita shade¸¦ »ç¿ëÇÏ´Â 9 Á¦Á¶»çÀÇ 12Á¾ÀÇ ±¤ÁßÇÕÇü º¹ÇÕ·¹Áø°ú 1Á¾ÀÇ Ä¡°ú¿ë µµÀçÀÇ »ö»óÀ» diffuse/8 ¼ö±¤ ¹æ½ÄÀ» »ç¿ëÇÏ´Â ºÐ±¤»öü°è (MiniScan XE plus, Model 4000S, Hunter Lab, USA)¸¦ ÀÌ¿ëÇØ D65 Ç¥Áر¤°ú 10µµ °üÂûÀÚ ½Ã¾ß ÇÏ¿¡¼­ CIE L*a*b* °ªÀ» ÃøÁ¤ÇÏ°í »ö»ó ¹üÀ§¸¦ ºÐ¼®ÇÏ¿´´Ù. ºÐ¼®ÇÑ Á¤º¸¸¦ color sorting systemÀ» ÀÀ¿ëÇÑ CNU Cons Dental Color ChartÀÇ »ö»ó Ç¥Çö ¹æ½ÄÀÎ T###¿¡ Ä¡°ú¿ë ¼öº¹ Àç·áµéÀÇ ¹üÀ§¸¦ Àû¿ëÇÏ¿© ´ÙÀ½ÀÇ °á°ú¸¦ ¾ò¾ú´Ù. ÃøÁ¤µÈ $L^*a^*b^*$ °ªÀÇ ºÐÆ÷¸¦ ºÐ¼®ÇØ º¸¸é L* °ªÀº 80.40°ú 52.70 »çÀÌ¿¡, a* °ªÀº 10.60°ú -3.60 »çÀÌ¿¡, ±×¸®°í b* °ªÀº 28.40°ú 2.21 »çÀÌ¿¡ ºÐÆ÷ÇÑ´Ù. L* °ªÀÇ Æò±Õ°ªÀº 67.40, Áß¾Ó°ªÀº 67.30À̸ç, a* °ªÀº 2.89¿Í 2.91, b* °ªÀº 14.30°ú 13.90 ÀÌ´Ù. ÀÌ·¯ÇÑ ºÐ¼®À» Åä´ë·Î CNU Cons Dental Color ChartÀÇ T###ÀÇ Ã¹ ¹ø° ¼ýÀÚ¿¡ ÇØ´çÇÏ´Â L* °ªÀÇ °¢ ¼ýÀÚ°£ÀÇ Â÷ÀÌ´Â 2.0À¸·Î, ±×¸®°í 2¹ø° ¼ýÀÚÀÎ a* °ªÀÇ °¢ ¼ýÀÚ°£ÀÇ Â÷ÀÌ´Â 1, ±×¸®°í ¼¼ ¹ø° ¼ýÀÚÀÎ b* °ªÀÇ °¢ ¼ýÀÚ°£ÀÇ Â÷ÀÌ´Â 2·Î Á¤ÇÏ¿´´Ù. T555¿¡ ÇØ´çÇÏ´Â L* °ªÀÇ ¹üÀ§´Â 66.0ÀÌ»ó, 68.0¹Ì¸¸À¸·Î, a* °ªÀÇ ¹üÀ§´Â 3ÀÌ»ó 4¹Ì¸¸À¸·Î, b* °ªÀÇ ¹üÀ§´Â 14ÀÌ»ó 16¹Ì¸¸À¸·Î °áÁ¤ÇÏ¿´´Ù.

The purpose of this study is to develope new dental color-space system. Twelve kinds of dental composites and one kind of dental porcelain were used in this study. Disk samples (15 mm in diameter, 4 mm in thickness) of used materials were made and sample¡¯¡¯s CIE L*a*b* value was measured by Spectrocolorimeter (MiniScan XE plus, Model 4000S, diffuse/8 viewing mode, 14.3 mm Port diameters, Hunter Lab USA) The range of measured color distribution was analyzed. All the data were applied in the form of T### which is expression unit in CNU Cons Dental Color Chart. The value of L* lies between 80.40 and 52.70. The value of a* are between 10.60 and 3.60 and b* are between 28.40 and 2.21. The average value of L* is 67.40, and median value is 67.30. The value of a* are 2.89 and 2.91 respectively. And for the b*, 14.30 and 13.90 were obtained. The data were converted to T### that is the unit count system in CNU-Cons Dental Color Chart. The value of L* is converted in the first digit of the numbering system. Each unit is 2.0 measured values. The second digit is the value of a* and is converted new number by 1.0 measured value. For the third digit b* is replaced and it is 2.0 measured unit apart. T555 was set to the value of L* ranging from 66.0 to 68.0, value of a* ranging from 3 to 4 and b* value ranging from 14 to 16.

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Tooth color;Color system;Dental color space;CIE L*a*b*;Esthetic material;Dental color chart

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