Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

¼ö Á¾ÀÇ Ni-Ti ȸÀü ±â±¸µéÀ» ÀÌ¿ëÇÑ Ä¡±Ù´Ü Æó¼â Çâ»óÀ» À§ÇÑ ±Ù°ü È®´ë Æò°¡

Evaluation of canal preparation for apical sealing with various Ni-Ti rotary instruments

´ëÇÑÄ¡°úº¸Á¸ÇÐȸÁö 2011³â 36±Ç 4È£ p.300 ~ 305
½ÅÀ¯¼®, ½Å¼öÁ¤, ¼Û¹ÎÁÖ, ±èÀǼº,
¼Ò¼Ó »ó¼¼Á¤º¸
½ÅÀ¯¼® ( Shin Yoo-Seok ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
½Å¼öÁ¤ ( Shin Su-Jung ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Á¸°úÇб³½Ç
¼Û¹ÎÁÖ ( Song Min-Ju ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
±èÀǼº ( Kim Eui-Seong ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç

Abstract

¿¬±¸¸ñÀû: º» ¿¬±¸ÀÇ ¸ñÀûÀº ¿øÇüÀÇ Ä¡±Ù´Ü »èÁ¦¸¦ Á¦°øÇÏ´Â ´É·Â¿¡ °üÇÑ ¼ö Á¾ÀÇ Ni-Ti ȸÀü ±â±¸µéÀ» Æò°¡ÇÏ´Â °ÍÀÌ´Ù.
¿¬±¸ Àç·á ¹× ¹æ¹ý: ½ÇÇèÀº 50°³ÀÇ ´Ü±ÙÄ¡¸¦ ¼±ÅÃÇÏ¿© ¹é¾Ç»ó¾ÆÁú °æ°è¿¡¼­ Àý´ÜÇÏ¿´°í, ±Ù°üÀÇ Ä¡°üºÎ 1/3Àº Gates Glidden bur (#2, #3, #4)¸¦ ÀÌ¿ëÇÏ¿© È®´ëÇÏ¿´´Ù. ½ÃÆíµéÀº °¢ ±º´ç 10°³¾¿ 5°³ÀÇ ½ÇÇ豺µé·Î ³ª´©¾ú´Ù. 1±ºÀº GT file, Profile .04, Quantec #9, #10À» »ç¿ëÇß°í, 2±ºÀº 1±º°ú À¯»çÇϳª Quantec ÆÄÀÏ ´ë½Å Lightspeed¸¦ »ç¿ëÇß°í, 3±ºÀº Orifice shaper, Profile .06 Á¾·ùµé, Lightspeed¸¦ »ç¿ëÇß°í, 4±ºÀº 3±º°ú À¯»çÇϳª Lightspeed ´ë½Å Quantec #9, #10¸¦ »ç¿ëÇß°í, 5±ºÀº ±Ù°ü È®´ë¸¦ À§ÇØ GT file, Profile .04¸¦ »ç¿ëÇß´Ù. ¸ðµç Ä¡¾Æ ½ÃÆíµéÀº Ä¡±Ù÷À¸·ÎºÎÅÍ 1 mm, 3 mm, 5 mm¿¡¼­ Àý´ÜÇÏ¿© Çö¹Ì°æÇÏ¿¡¼­ °üÂûÇß´Ù.

°á°ú: º» ¿¬±¸ÀÇ °á°ú ½ÇÇ豺 2, 3±º(Lightspeed file±º)ÀÌ ½ÇÇ豺 1, 4±º(Quantec), ½ÇÇ豺 5±º(GT file, profile .04Á¾·ùµé)¿¡ ºñÇÏ¿© Ä¡±Ù´Ü 1 mm¿¡¼­ ´õ ¿øÇü¿¡ °¡±î¿î Ä¡±Ù´Ü »èÁ¦¸¦ º¸¿´´Ù(p < 0.05). Ä¡±Ù´Ü 3, 5 mmµé¿¡¼­´Â °¢ ±ºµé »çÀÌ¿¡¼­ Åë°èÇÐÀû À¯ÀÇÂ÷°¡ ¾ø¾ú´Ù. Ä¡±Ù´Ü 5 mm ½ÃÆíµé¿¡¼­´Â ´ëºÎºÐÀÇ ½ÃÆíµéÀÌ ¿ÏÀüÇÑ ¿øÇüÀ» ³ªÅ¸³»¾úÀ¸¸ç ºÒ±ÔÄ¢ÇÑ ¸ð¾çÀº °üÂûµÇÁö ¾Ê¾Ò´Ù.

°á·Ð: Ä¡±Ù´Ü 1 mm ½ÃÆí¿¡¼­ Lightspeed¸¦ »ç¿ëÇÑ °æ¿ì¿¡¼­ ´Ù¸¥ Quantec, GT¿Í Profile .04 Á¾·ùµéÀ» »ç¿ëÇÑ °Íº¸´Ù ´õ ¿øÇüÀÇ »èÁ¦¸¦ ¾ò¾ú°í, ±Ù°üÀå¿¡¼­ ÃÖÃÊÀÇ Lightspeed¿¡ ¸Â´Â Å©±âº¸´Ù ISO Å©±âº¸´Ù 3´Ü°è Å©±â È®´ë·Î´Â ¸ðµç Ä¡±Ù´Ü 1 mm¿¡¼­ ¿øÇüÀÇ »èÁ¦¸¦ ¾ò¾úÀ» ¼ö ¾ø¾ú°í ´ÜÁö 35%¿¡¼­¸¸ ¿øÇüÀÇ »èÁ¦¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù´Â °ÍÀÌ´Ù. µû¶ó¼­ ISO Å©±âº¸´Ù 3´Ü°è Å©±â È®´ë°¡ ¿øÇü »èÁ¦¸¦ ¾ò±â¿¡´Â ºÒÃæºÐÇϸç Á» ´õ Å« Å©±â·Î È®´ëÇÏ´Â °ÍÀÌ ÇÊ¿äÇÔÀ» ¾Ë ¼ö ÀÖÀ¸³ª Ä¡¾Æ¿¡ µû¶ó Ä¡±Ù´Ü ºÎÀ§ Ä¡ÁúÀÇ ¾çÀÌ ´Ù¸¦ ¼ö ÀÖÀ¸¹Ç·Î ÀÏ·üÀûÀ¸·Î Àû¿ëÇϱ⿡´Â ¹«¸®°¡ ÀÖÀ» ¼ö ÀÖ´Ù.

Objectives: The aim of this study was to evaluate the various NiTi rotary instruments regarding their ability to provide a circular apical preparation.

Materials and Methods: 50 single canal roots were selected, cut at the cementodentinal junction and the coronal 1/3 of the canals was flared using Gates Glidden burs. Samples were randomly divided into 5 experimental groups of 10 each. In group I, GT files, Profile 04 and Quantec #9 and #10 files were used. In Group II Lightspeed was used instead of Quantec. In Group III, Orifice shaper, Profile .06 series and Lightspeed were used. In Group IV, Quantec #9 and #10 files were used instead of Lightspeed. In Group V, the GT file and the Profile .04 series were used to prepare the entire canal length. All tooth samples were cut at 1 mm, 3 mm and 5 mm from the apex and were examined under the microscope.
Results: Groups II and III (Lightspeed) showed a more circular preparation in the apical 1mm samples than the groups that used Quantec (Group I & IV) or GT files and Profile .04 series.(Group V)(p < 0.05) There was no significant difference statistically among the apical 3, 5 mm samples. In 5 mm samples, most of the samples showed complete circularity and none of them showed irregular shape.

Conclusions: Lightspeed showed circular preparation at apical 1 mm more frequently than other instruments used in this study. However only 35% of samples showed circularity even in the Lightspeed Group which were enlarged 3 ISO size from the initial apical binding file (IAF) size. So it must be considered that enlarging 3 ISO size isn¡¯t enough to make round preparation.

Å°¿öµå

¿øÇü Ä¡±Ù´Ü »èÁ¦; Ä¡±Ù´Ü ¹ÐÆó
Apical sealing; Circular apical preparation; GT file; Lightspeed; Profile; Quantec

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

 

µîÀçÀú³Î Á¤º¸

KCI