Á¦ IV Çü ±Ù°ü¿¡¼ System B Plugger tipÀÇ ±íÀÌ¿¡ µû¸¥ ±Ù°ü ÃæÀü È¿°ú
THE EFFECT OF CANAL OBTURATION ACCORDING TO THE DEPTH OF THE SYSTEM B PLUGGER TIP IN THE TYPE IV CANAL
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ÃÖÈñ¿ø ( Choi Hee-Won ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
±è¼ö¹Ì ( Kim Soo-Mee ) - ¼³²´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç
Ȳȣ±æ ( Hwang Ho-Keel ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
KMID : 0362320080330060518
Abstract
º» ¿¬±¸ÀÇ ¸ñÀûÀº Á¦ IVÇü ±Ù°ü¿¡¼ Continuous Wave °¡¾Ð¹ýÀ» ÀÌ¿ëÇÏ¿© ÃæÀüÇÒ ¶§ System B Plugger tipÀÇ ±íÀÌ¿¡ µû¸¥ ±Ù´ÜºÎ ¹ÐÆóÈ¿°ú¸¦ Æò°¡Çϱâ À§ÇÔÀÌ´Ù. 50°³ÀÇ JÇü ¸¸°îÀ» °®´Â ·¹Áø ºí·Ï¿¡ ºÎ·¯Áø F3 ProTaper ÆÄÀÏÀ» ÀÌ¿ëÇØ ±Ù°üÀå¿¡¼ 3mm ÁöÁ¡¿¡ ledge¸¦ Çü¼ºÇÑ ÈÄ, F1 ProTaper Ni-Ti fileÀ» ÀÌ¿ëÇØ ·¹Áø ºí·ÏÀ» õ°ø½ÃÄÑ Á¦ IVÇü ±Ù°üÀ» Çü¼ºÇÏ°í System B Plugger tipÀÇ ±íÀÌ¿¡ µû¶ó 3°³ÀÇ ½ÇÇ豺°ú 1°³ÀÇ ´ëÁ¶±ºÀ¸·Î ºÐ·ùÇÏ¿´´Ù. Á¦ IVÇü ±Ù°üÀÇ °ÅÅÍÆÛÃÄ¿Í ½Ç·¯ÀÇ ±æÀÌ´Â È®´ë°æÇÏ¿¡¼ Ķ¸®ÆÛ¸¦ ÀÌ¿ëÇØ ÃøÁ¤ÇÏ¿´°í ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù. 1. ´ëÁ¶±ºÀÇ ¼³Ãø ±Ù°ü¿¡¼ °ÅÅÍÆÛÃÄ¿Í ½Ç·¯ ¸ðµÎ °üÂûµÇÁö ¾Ê¾Ò´Ù. 2. 3 mm±º¿¡¼´Â 5 mm ¶Ç´Â 7 mm±º¿¡ ºñÇØ À¯ÀÇÇÏ°Ô ¸¹Àº °ÅÅÍÆÛÃÄÀÇ ÃæÀüÀÌ °üÂûµÇ¾ú´Ù (p<0.05). 3. 7 mm±º¿¡¼´Â À¯ÀÇÇÏ°Ô ¸¹Àº ºó °ø°£ÀÌ °üÂûµÇ¾ú´Ù (p<0.05).
The purpose of this study was to evaluate the effect of the apical sealing according to the depth of the System B Plugger tip when root canal was filled with gutta-percha and sealer by Continuous Wave of Condensation technique in the Type IV canal. 50 simulated resin blocks with J-shaped curvature canals were instrumented by ProTaper (Dentsply Maillefer, Ballagiues, Switzerland) Ni-Ti files using the crown-down technique. Type IV canals were made using a broken ProTaper F3 Ni-Ti file for making a ledge at 3mm short from the working length. And ProTaper F1 Ni-Ti file was used for perforating resin block. The prepared Type IV canals were randomly divided into three experimental groups of 15 each according to the depth of System B Plugger tip. All of experimental groups were obturated with Continuous Wave of Condensation technique. The length of gutta-percha and sealer in lingual of the Type IV canals was measured with a measuring digital calliper under magnifying glass (). The results are as follows : 1. In control group, there was no gutta-percha and sealer in lingual canal. 2. 3 mm group showed relatively more gutta-percha than 5mm or 7 mm group (p<0.05). 3. 7 mm group did not showed gutta-percha and relatively more void were observed than 3mm or 5 mm group. (p<0.05) In conclusion, within the limits of the results of this experiment, the 3 mm depth of System B Plugger tip was acceptable for obturating the Type IV canal.
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System B Plugger tipÀÇ ±íÀÌ;Á¦ IVÇü ±Ù°ü;ÃæÀü;Continuous Wave °¡¾Ð¹ý
Depth of the System B Plugger tip;Type IV canal;Obturation;Continuous Wave of Condensation technique
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