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Á¦ 12 °Á |
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Orthodontic Bonding ( 3 ) |
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4. Edgewise bracketÀÇ Á¾·ù <1> Shape & size a.
Single - narrow, medium, wide
<2> Material a.
Metal
<3> Slot size
(1) AngleÀÇ original bracketÀº 0.022 x 0.028" slot dimensionÀ» °®´Â´Ù. ÀÌ·¯ÇÑ 022 bracketÀº precious metal archwire¸¦ À§ÇÑ °ÍÀ¸·Î rectangular steel archwire¸¦ »ç¿ëÇÒ ¶§ excessive force °¡ °¡ÇØÁú¼ö ÀÖ´Ù. (2) ±×·¯¹Ç·Î slot size¸¦ 018·Î ÁÙÀÓÀ¸·Î½á archwire¿¡¼ »ý±â´Â force¸¦ (archwireÀÇ size¸¦ °¨¼Ò½ÃÅ´À¸·Î½á) °¨¼Ò½Ãų ¼ö ÀÖ´Ù. (3) ¶ÇÇÑ bracket slot size°¡ °¨¼ÒµÇ¸é ÀûÀº ±½±âÀÇ archwire°¡ bracket³»¿¡¼ ±ä¹ÐÇÑ ÀûÇÕ¼ºÀ» °¡Á® ¾çÈ£ÇÑ root movement¸¦ ÀÏÀ¸Å³¼ö ÀÖ´Ù. Áï full size 018 x 025 rect wire´Â 0215 x 028 archwire°¡ »ç¿ëµÉ ¶§ ¹ß»ýÇÏ´Â Èûº¸´Ù ´õ ÀûÀº ÈûÀ¸·Î root movement¸¦ ÀÏÀ¸Å³ ¼ö ÀÖ´Ù. (4) preadjusted edgewise appliance¿¡¼´Â ÀåÄ¡ÀÇ ¼ºÁúÀ» ÃÖ´ëÇÑ ÀÌ¿ëÇϱâ À§ÇØ full-size archwire¸¦ »ç¿ëÇÑ´Ù. ±×·¯¹Ç·Î finishing archwire´Â 018 slot¿¡¼ 018×025 archwire¸¦ »ç¿ëÇÑ´Ù.
<4> Single & Twin BracketÀÇ Àå, ´ÜÁ¡
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Á¦ 12 °Á |
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