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Biomechanics and clinical applications of pendulum appliance

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±ÇÈñÁ¤ ( Kwon Hee-Jeong ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤°úÇб³½Ç
ȲÃæÁÖ ( Hwang Chung-Ju ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤°úÇб³½Ç

Abstract

1960³â´ë ¸»ºÎÅÍ 1970³â´ë ÃʱîÁö 80% ÀÌ»óÀÇ È¯ÀÚ°¡ ¼Ò±¸Ä¡ ¹ßÄ¡¸¦ ÅëÇØ Ä¡·áµÇ¾ú´ø °ÍÀ» µ¹ÀÌÄÑ º¼ ¶§, ÃÖ±Ù¿¡´Â ºñ¹ßÄ¡·Î Ä¡·áÇÏ·Á´Â °æÇâÀÌ Áõ°¡ÇÏ°í ÀÖ´Ù. ºñ¹ßÄ¡·Î Ä¡·áÇϱâ À§Çؼ­´Â ¾Ç±ÃÀÇ È®Àå, ÀüÄ¡ÀÇ Àü¹æ °æ»ç, ±¸Ä¡ÀÇ ÈĹæ À̵¿ µîÀÇ ¹æ¹ýÀ» ÅëÇØ ºÎÁ·ÇÑ ¾Ç±Ã °ø°£ÀÇ È®º¸°¡ ÇÊ¿äÇÏ´Ù. ¾Ç±ÃÀÇ È®Àå, ƯÈ÷ ÇÏ¾Ç °ßÄ¡ºÎÀ§ÀÇ È®ÀåÀº ÀÌ¹Ì ¿À·¡ ÀüºÎÅÍ Àç¹ßÀÌ Àß ÀϾ´Â Ä¡¾Æ À̵¿À¸·Î ¾Ë·ÁÁ® ¿Ô´Ù.1) ¾Ç±ÃÀÇ Àå°æÀ̳ª ¼öÁ÷ ¼ºÀå¿¡ ºñÇØ Æø°æÀÇ ¼ºÀåÀÌ ÀÏÂï ¿Ï·áµÈ´Ù´Â Á¡À» °í·ÁÇÒ ¶§, È¥ÇÕ Ä¡¿­±â ÀÌÈÄ ¾Ç±ÃÀ» È®Àå½ÃÅ°°íÀÚ ÇÒ ¶§´Â ÁÖÀǸ¦ ±â¿ï¿©¾ß ÇÑ´Ù. ÀüÄ¡¸¦ Àü¹æ °æ»ç½ÃÄѼ­ °ø°£À» ¾ò´Â ¹æ¹ýÀº ÀüÄ¡ºÎ¿¡ °æ¹ÌÇÑ °ø°£ ºÎÁ¶È­°¡ Á¸ÀçÇÒ ¶§ Å« ºÎÀÛ¿ë ¾øÀÌ »ç¿ëµÉ ¼ö ÀÖÀ¸³ª, °úµµÇÑ ÀüÄ¡ÀÇ Àü¹æ °æ»ç´Â Ä¡Àº ÅðÃà, Ä¡Á¶°ñ ¼Ò½Ç, ¿­°³(dehiscence) µîÀÇ Ä¡ÁÖÀûÀÎ ¹®Á¦¸¦ ¾ß±âÇÑ´Ù. ¶ÇÇÑ ¾Ç±ÃÀÇ È®Àå°ú ÀüÄ¡ÀÇ Àü¹æ °æ»ç´Â ¾È¸é±ÙÀ°¿¡ ÀúÇ×ÇÏ´Â ¹æÇâÀ¸·Î Ä¡¾Æ¸¦ À̵¿½ÃÅ°±â ¶§¹®¿¡, ±ÙÀ°ÀÌ »õ·Î¿î Ä¡¾ÆÀÇ À§Ä¡¿¡ ºü¸£°Ô ÀûÀÀÇÏÁö ¸øÇÏ¸é ½±°Ô Àç¹ßµÉ ¼ö ÀÖ´Ù. ºñ¹ßÄ¡ Ä¡·á Áß ±¸Ä¡¸¦ ÈĹæ À̵¿½ÃÅ°´Â ¹æ¹ýÀÌ °¡Àå ¾ÈÁ¤ÀûÀÎ °ÍÀ¸·Î ¿©°ÜÁ® ¿Ô´Âµ¥, ¾ÈÁ¤¼ºÀÇ ±Ù°Å·Î ´ÙÀ½ÀÇ ¸î °¡Áö »çÇ×ÀÌ Á¦½ÃµÇ¾ú´Ù. ù°, »ó¾ÇÀÌ Àü¹æ ¼ºÀåÇÔ¿¡ µû¶ó »ó¾Ç°áÀý(maxillary tuberosity) ÈĹ濡 °ñÀÌ Ä§ÂøµÇ¹Ç·Î, ±¸Ä¡¸¦ ÈĹæ À̵¿½Ãų ¶§ ¼ºÀåÀÇ µµ¿òÀ» ¹ÞÀ» ¼ö ÀÖ´Ù. µÑ°, ¾Ç±ÃÀÇ È®ÀåÀ̳ª ÀüÄ¡ÀÇ Àü¹æ °æ»ç¿Í´Â ´Þ¸® ±¸Ä¡¸¦ ÈĹæ À̵¿½Ãų ¶§¿¡´Â ±¸°­ ÁÖÀÇ ±ÙÀ°ÀÇ ÀúÇ×À» ¹ÞÁö ¾Ê´Â´Ù. ¸¶Áö¸·À¸·Î, ±¸Ä¡ÀÇ ÈĹ濡´Â ÃæºÐÇÑ °ñÁ¶Á÷ÀÌ Á¸ÀçÇϹǷΠġÁÖÀûÀÎ ¹®Á¦¸¦ ¾ß±âÇÒ °¡´É¼ºÀÌ ³·´Ù.

Molar distalization was frequently used to gain space in non-extraction cases because it produced better results than arch expansion or proclination of anterior teeth in periodontic aspects and stability. Pendulum appliance first-introduced by Hilgers in 1992, reduced anchor part movements during molar distalization by using palatal vault which contacts Nance button as additional anchorage. Many other modified pendulum appliance has been developed for controlling intermolar width, axial inclination and vertical movement of molars as well as molar distalization and therefore if it is used in proper patients, it produces uniform results irrespective of compliance of patients.
Indications and biomechanical considerations of pendulum appliance and dental and skeletal changes by pendulum appliance will be discussed and 2 cases that unilateral and bilateral molar distalization was performed in growing patients will be presented.

Å°¿öµå

Biomechanics;Molar distalization;Pendulum appliance

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