2Á¾ ÀüÀÚ±Ù°üÀåÃøÁ¤±âÀÇ Á¤È®µµ ¹× ÀÏ°ü¼º¿¡ °üÇÑ in vivo ¿¬±¸
In vivo evaluation of accuracy and consistency of two electronic apex locators
ÇÊ°¨¿î, ±èÀǼº, Á¤ÀÏ¿µ, À̽ÂÁ¾,
¼Ò¼Ó »ó¼¼Á¤º¸
ÇÊ°¨¿î ( Pi Chien-Yun ) - ¿¬¼¼´ëÇб³ ¿øÁֱ⵶º´¿ø Ä¡°úº¸Á¸Çб³½Ç
±èÀǼº ( Kim Eui-Seong ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
Á¤ÀÏ¿µ ( Jung Il-Young ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
À̽ÂÁ¾ ( Lee Seung-Jong ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
KMID : 0362320100350060453
Abstract
¿¬±¸¸ñÀû: Ä¡ÁÖÁúȯÀ̳ª º¸Ã¶Ä¡·á °èȹÀ¸·Î ¹ßÄ¡ ¿¹Á¤ÀÎ ¼ºÀΠȯÀÚµéÀ» ´ë»óÀ¸·Î 2 Á¾ÀÇ ÀüÀÚ±Ù°üÀåÃøÁ¤±â¸¦ »ç¿ëÇÏ¿© ¾òÀº ÃøÁ¤Ä¡ÀÇ Á¤È®¼º (accuracy)À» Æò°¡ÇÏ°í, Çö¹Ì°æÀ» »ç¿ëÇÏ¿© °¢°¢ 0.5 mark¿Í Apex mark Áß¿¡¼ ¾î´À ÁöÁ¡¿¡¼ ´õ ÀÏ°ü¼º (consistency)À» º¸ÀÌ´ÂÁö¸¦ ºñ±³ÇÏ´Â °ÍÀÌ´Ù.
¿¬±¸ Àç·á ¹× ¹æ¹ý: Ä¡ÁÖ ¹× º¸Ã¶Ä¡·á°èȹÀ¸·Î ÀÎÇØ ¹ß°Å ¿¹Á¤ÀÎ 26°³ÀÇ °ÇÀüÇÑ Ä¡¾Æµé¿¡¼ 13°³´Â Root ZX¸¦ ÀÌ¿ëÇÏ¿© Ãø Á¤ÇÏ¿´°í, ³ª¸ÓÁö 13°³´Â i-ROOT¸¦ ÀÌ¿ëÇÏ¿© ÃøÁ¤ÇÏ¿´´Ù. ±¹¼Ò¸¶Ã븦 ½ÃÇà ÈÄ ·¯¹ö´ïÀ» Àû¿ëÇÑ ÈÄ Ä¡¾ÆÀÇ Ä¡¼ö°À» °³¹æÇÏ¿´´Ù. À̶§ ±³ÇÕ¸éÀ» Ä¡¾Æ ÀåÃà¿¡ ¼öÁ÷À¸·Î »èÁ¦ÇÔÀ¸·Î½á ±Ù°üÀåÀ» ÃøÁ¤ÇÒ ¶§ ¹ß»ýÇÒ ¼ö ÀÖ´Â ¿ÀÂ÷¸¦ ÃÖ¼ÒÈÇÏ¿´´Ù. ¸ðµç ±Ù°ü¿¡¼ 0.5 mark¿¡¼ ¸ÕÀú ±Ù°üÀåÀ» ÃøÁ¤ÇÑ ÈÄ fileÀ» ´õ ÀüÁøÇÏ¿© Apex mark¿¡¼ ±Ù°üÀåÀ» ´Ù½Ã ÃøÁ¤ÇÏ¿´°í, ÀÌ ÁöÁ¡¿¡¼ fileÀ» Light cured glass ionomer·Î °íÁ¤ÇÏ¿´´Ù. ÀÌÈÄ Ä¡¾ÆµéÀ» ¹ß°ÅÇÑ ÈÄ »ý¸®½Ä¿°¼ö¿¡ º¸°üÇÏ¿´´Ù. °¢°¢ Ä¡¾ÆµéÀÇ Ä¡±Ù´ÜºÎ 5 mm¸¦ 21.3¹èÀ²ÀÇ Çö¹Ì°æ ÇÏ¿¡¼ Ä¡±ÙÀÇ ÀåÃà ¹æÇâÀ¸·Î °í¼ÓÇÚµåÇǽº ´ÙÀ̾Ƹóµå ¹Ù¸¦ »ç¿ëÇÏ¿© Á¶±Ý¾¿ »èÁ¦ÇÏ¿© Ä¡ÁúÀ» Á¶½É½º·´°Ô Á¦°ÅÇÏ¿© file tipÀ» ¿ÏÀüÈ÷ ³ëÃâ½ÃÄ×´Ù. Çö¹Ì°æ ÇÏ¿¡¼ ÁøÇàÇÑ °úÁ¤µéÀº Çö¹Ì°æ°ú ¿¬°áµÈ DVD recorder¸¦ ÅëÇØ ÀúÀåÇÏ¿´´Ù. ÀÌ À̹ÌÁö¸¦ ¿µ»óºÐ¼® ÇÁ·Î±×·¥ÀÎ i-solution¿¡ Àû¿ëÇÏ¿© file tip¿¡¼ºÎÅÍ ÁÖ±Ù´Ü°ø±îÁöÀÇ ÃִܰŸ®¸¦ ÃøÁ¤ÇÏ¿´´Ù.
°á°ú: 1. Apex mark ÀÌ¿ë ½Ã Root ZX¿Í i-ROOT ¸ðµÎ¿¡¼ ÁÖ±Ù´Ü°ø À̳»ÀÇ ºÎÀ§¸¦ 100% ã¾Æ³»´Â Á¤È®µµ¸¦ º¸¿´´Ù. 2. 0.5 mark ÀÌ¿ë ½Ã Root ZX¿¡¼´Â 100%, i-ROOT¿¡¼´Â 77%¿¡¼ ÁÖ±Ù´Ü°ø À̳»ÀÇ ºÎÀ§¸¦ ã¾Æ³»´Â Á¤È®µµ¸¦ º¸¿´´Ù. 3. Ç¥ÁØÆíÂ÷¿Í »çºÐÀ§ °ªÀ¸·Î Æò°¡ÇÏ¿´À» ¶§ Root ZX¿¡¼´Â Apex mark°¡ 0.5 markº¸´Ù ÀÏ°ü¼ºÀ» ³ªÅ¸³ÂÀ¸¸ç i-ROOT¿¡¼´Â 0.5 mark°¡ Apex markº¸´Ù ÀÏ°ü¼ºÀ» º¸¿´À¸³ª t-test °á°ú¿¡¼´Â Åë°èÀû À¯ÀÇÂ÷°¡ ¾ø¾ú´Ù. 4. Apex mark¿Í 0.5 mark Â÷ÀÌ´Â Root ZX¿¡¼´Â 0.22 mm, i-ROOT¿¡¼´Â 0.46 mm¸¦ º¸¿´´Ù.
°á·Ð: Apex mark¿Í 0.5 mark ¸ðµÎ ÀÏ°ü¼º¿¡ ÀÖ¾î¼ÀÇ Â÷ÀÌ´Â ¾øÀ¸³ª Apex markÀÇ ÃøÁ¤Ä¡°¡ 0.5 mark¿¡ ºñÇϸé ÁÖ±Ù´Ü°ø¿¡ °ÅÀÇ ÀÏÄ¡ÇÏ´Â Á¡À» °í·ÁÇØ, ÀÓ»ó¿¡¼ ±Ù°üÀåÀ» °áÁ¤ÇÒ ½Ã Apex mark ÃøÁ¤Ä¡¸¦ ¸ÕÀú ±¸ÇÑ ÈÄ ±âÁ¸¿¬±¸µé¿¡¼ º¸°íµÈ ÁÖ±Ù´Ü°ø¿¡¼ºÎÅÍ ±Ù°üÇùÂøºÎ±îÁöÀÇ Æò±Õ°Å¸®ÀÎ 0.5 mm¸¦ »©´Â °ÍÀÌ ÁÁÀ» °ÍÀ¸·Î »ç·áµÈ´Ù.
Objectives: To evaluate the accuracy and consistency of two different apex locators at both the Apex and 0.5 marks.
Materials and Methods : Twenty-six root canals was scheduled for extraction for periodontal or prosthodontic reasons. Thirteen canals were measured using Root ZX and the rest by i-ROOT. The root canal length was measured both the at 0.5 mark and the Apex mark. The file was then fixed to the toot, and the distance from the file tip to the major foramen of each canal was measured after removing the root dentin under the microscope so that the major foramen and the file tip were seen.
Results: 1. When the Apex mark was used, 100% of both the Root ZX and i-ROOT groups were within 0.5 mm of the major foramen. 2. When 0.5 mark was used, 100% of the Root ZX group and 77% of the i-ROOT group were within 0.5 mm of the major foramen. 3. In terms of standard deviation and quartile value, the Apex mark was more consistent than 0.5 mark in the Root ZX group, and 0.5 mark was more consistent in the i-ROOT group, but there was no statistically significant difference when compared with t-test. 4. The root canal length difference between the Apex mark and 0.5 mark was 0.22 mm and 0.46 mm in the Root ZX and i-ROOT groups, respectively.
Conclusions: In this study, the Apex mark was the more consistent mark. Therefore, it is recommended to subtract 0.5 mm, which is the average length between the apex and apical constriction, from the root canal length at the Apex mark to obtain the working length clinically.
Å°¿öµå
ÀÏ°ü¼º; ÀüÀÚ±Ù°üÀåÃøÁ¤±â; Á¤È®¼º; Çö¹Ì°æ
Accuracy; Consistency; Electronic apex locator; Microscope
¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸
µîÀçÀú³Î Á¤º¸