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INFLUENCE OF THE LABIAL SURFACE IRREGULARITY ON THE MEASUREMENT OF THE TOOTH COLOR BY SPECTROMETER

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ÃÖ¿ëÁø, Á¶Çö±¸, ȲÀ±Âù, ¿À¿ø¸¸, ȲÀγ², ¹Ú¼öÁ¤, ¹Úº´ÁÖ,
¼Ò¼Ó »ó¼¼Á¤º¸
ÃÖ¿ëÁø ( Choi Yong-Jin ) - 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
¹Ú¼öÁ¤ ( Park Su-Jung ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ º¸Á¸Çб³½Ç
¹Úº´ÁÖ ( Park Byung-Ju ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­»ýÈ­Çб³½Ç

Abstract

º» ¿¬±¸´Â Ä¡¾Æ ¼ø¸éÀÇ ±¼°î Á¤µµ°¡ Ãø»ö±â¸¦ ÀÌ¿ëÇÑ Ä¡¾Æ Ãø»ö °á°ú¿¡ ¾î¶°ÇÑ ¿µÇâÀ» ¹ÌÄ¡´ÂÁö È®ÀÎÇÏ°íÀÚ ½ÃÇàÇÏ¿´´Ù. °í¸¥ Ä¡¿­À» °¡Áø 20´ë ¼ºÀÎ 11¸íÀ¸·ÎºÎÅÍ Ã¤µæÇÑ ÀÎ»ó¿¡ A2»ö»óÀÇ Àӽà ±Ý°ü Á¦ÀÛ¿ë ·¹Áø (Luxatemp Automix Plus, DMG, Germany)À» ÃæÀüÇÏ¿© Ä¡¾Æ ¸ðÇüÀ» Á¦ÀÛÇÏ°í, ÁßÀýÄ¡, ÃøÀýÄ¡, °ßÄ¡, ±×¸®°í Á¦1¼Ò±¸Ä¡ÀÇ Àý´ÜºÎ, Áß¾ÓºÎ, Ä¡°æºÎÀÇ »ö»óÀ» 1 mm Á÷°æÀÇ ÃøÁ¤±¸¸¦ °¡Áø Specbos 2100 (JETI, Germany) spectrometer¸¦ »ç¿ëÇØ ÃøÁ¤ÇÏ°í, µð½ºÅ© ÇüÅ·ΠÁ¦ÀÛµÈ ´ëÁ¶±º°úÀÇ »öÂ÷¸¦ ȯ»êÇÏ¿© ´ÙÀ½ÀÇ °á°ú¸¦ ¾ò¾ú´Ù. ¸ðµç Ä¡¾Æ ¸ðÇü¿¡¼­ $L^*$°ª°ú $b^*$°ªÀº Àý´ÜºÎ¿¡¼­ Ä¡°æºÎ·Î °¥¼ö·Ï ³·¾ÆÁö´Â °æÇâÀ» º¸À̳ª $a^*$°ªÀº Áõ°¡ÇÏ´Â °æÇâÀ» º¸¿´´Ù. µð½ºÅ© ÇüÅÂÀÇ ´ëÁ¶±º°úÀÇ »öÂ÷´Â ¸ðµç Ä¡¾ÆÀÇ Àý´ÜºÎ°¡ °¡Àå Å« °ªÀ» º¸¿´À¸¸ç, Ä¡°æºÎ°¡ °¡Àå ÀÛÀº °ªÀ» º¸¿´À¸¸ç, °ßÄ¡°¡ ´Ù¸¥ Ä¡¾Æµé¿¡ ºñÇØ µð½ºÅ© ÇüÅÂÀÇ ´ëÁ¶±º°ú ÀÛÀº »öÂ÷¸¦ º¸ÀÎ ¹Ý¸é, ÁßÀýÄ¡°¡ °¡Àå Å« »öÂ÷¸¦ º¸¿´´Ù (p < 0.01). ÀÌ»óÀÇ °á°ú´Â º» ½ÇÇè¿¡ Àû¿ëÇÑ optic-fiber¸¦ ÅëÇØ »öÀ» ÃøÁ¤ÇÏ´Â ±â±â¸¦ Ä¡¾Æ Ãø»ö¿¡ Àû¿ëÇϱâ À§Çؼ­´Â ¸ÕÀú ÀÏÁ¤ÇÑ Ãø»ö Á¶°ÇÀÇ Ç¥ÁØÈ­¿Í Ä¡¾Æ¿Í Á¢ÃËÇÏ´Â ÃøÁ¤ºÎÀÇ Ä¡¾Æ Ç¥¸éÀÇ ±¼°îÀ» ±Øº¹ÇÒ ¼ö ÀÖ´Â ÇüÅÂÀÇ °³¹ßÀÌ ÇÊ¿äÇÔÀ» ½Ã»çÇÑ´Ù.

The most scientific and reliable method for deciding the tooth color is the instrumental measurement. However, such color measuring instrument shows the difference of the measuring value according to the diversified measuring condition. This study was conducted to evaluate what effect of the labial surface irregularity of the tooth to the result of the color measured by spectrometer. 11 models of the teeth were made by injecting the A2 shade Luxatemp Automix Plus (DMG, Germany) into the impression acquired from 11 adults. Standard disk samples (15 mm diameter, 7 mm thickness) were made with same material. CIE $L^*a^*b^*$ value was measured at the incisal, central, and gingival area of the central incisor, lateral incisor, canine and first premolar using Specbos 2100 (JETI, Germany) spectrometer. Color difference was calculated between labial surface and standard samples. Among all models of the teeth, $L^*\;and\;b^*$ value showed the reducing tendency as they go toward the gingival area, but $a^*$ value showed the increasing tendency. Color difference between model teeth and standard samples showed the most difference at the incisal area, but the gingival area showed the least difference. And the canine showed the least color difference from the comparison of standard sample, and the central incisor showed the highest difference (p < 0.01). Although the visually detectable difference of the measuring value showed notably depending on the type and measured area (p < 0.05), $L^*\;and\;a^*$ value showed notable differences depending more on the measured areas than on the type of the teeth.

Å°¿öµå

Ä¡¾Æ»ö»ó;¼ø¸é ±¼°î;»öÂ÷;Ä¡¾Æ Ãø»ö¿ë ±â±â
Tooth color;Spectrometer;Labial surface irregularity;CIE $L^*a^*b^*$;Color difference;Tooth color measurement

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