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Modified FR-4ÀÇ ÀÓ»óÀû¿ë·Ê

Clinical application of modified FR-4

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Abstract

ÀüÄ¡ºÎ °³±³ÇÕÀº »ó¡¤ÇÏ¾Ç ÀüÄ¡ºÎ°¡ Æó±¸ ½Ã Àý´Ü ±â´É¿¡ ÇʼöÀûÀÎ ¼öÁ÷ÇÇ°³°¡ °á¿©µÇ¾î ÀÖ´Â »óŸ¦ ¸»ÇÑ´Ù. ÀϹÝÀûÀÎ ¿øÀÎÀ¸·Î´Â ¼Õ°¡¶ô »¡±â, Çô ³»¹Ð±â, À¯¾Æ¼º ¿¬ÇÏ, ºñÈ£Èí ºÎÀü, °ñ°Ý¼ºÀåÀÇ ÀÌ»ó ¶Ç´Â À̵éÀÌ º¹ÇÕÀûÀ¸·Î ÀÛ¿ëµÇ¾î ³ªÅ¸³¯ ¼ö ÀÖÀ¸¸ç, ¾î¶² Á¾·ùÀÇ ºÎÁ¤±³ÇÕ°úµµ ÇÔ²² ³ªÅ¸³¯ ¼ö ÀÖ´Ù.

ÀüÄ¡ºÎ °³±³ÇÕÀ» À§ÇÑ Ä¡·á ¹æ¹ýÀº ´Ù¾çÇÏÁö¸¸, Rolf Fra ***** nce¿¡ ÀÇÇØ °í¾ÈµÈ Fra ***** nkel appliance(FR-4)´Â °ñ°Ý¼º I±Þ ȤÀº II±Þ ºÎÁ¤±³ÇÕ°ú ÇÔ²² ³ªÅ¸³­ °³±³ÇÕÀÇ Ä¡·á¿¡ ƯÈ÷ È¿°úÀûÀÎ °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Ù. ¼­¾çÀο¡¼­´Â °ñ°Ý¼º II±Þ ºÎÁ¤±³ÇÕÀÌ ³ôÀº ºóµµ·Î ³ªÅ¸³ª°í, °³±³ÇÕµµ ÀÌ¿Í ÇÔ²² ³ªÅ¸³ª´Â °æ¿ì°¡ ¸¹´Ù. ±×·¯³ª µ¿¾çÀο¡¼­´Â °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀÇ ºóµµ°¡ ³ô°í, °³±³ÇÕ ¶ÇÇÑ ÀÌ¿Í °°Àº °ñ°ÝÇüÅÂ¿Í ÇÔ²² ³ªÅ¸³ª´Â °æ¿ì°¡ gmsÈ÷ ÀÖ´Ù. ÀÌ·¯ÇÑ ¹®Á¦Á¡À» °®´Â ȯÀÚ¿¡ À־ ÀüÅëÀûÀÎ FR-4ÀÇ »ç¿ëÀÌ °³±³ÇÕÀÇ ±³Á¤¿¡ µµ¿òÀÌ µÇ¾úÀ»Áö¶óµµ, °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀ» ¾ÇÈ­½ÃÅ°´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. µÎ °¡Áö ¹®Á¦Á¡À» µ¿½Ã¿¡ ±³Á¤Çϱâ À§ÇÏ¿©, labial bow¸¦ ÇÏ¾Ç ÀüÄ¡ºÎ¿¡, labial pads¸¦ »ó¾Ç ÀüÄ¡ºÎ¿¡ À§Ä¡½ÃŲ modified FR-4¸¦ °í¾ÈÇÏ°Ô µÇ¾ú´Ù.

´ÙÀ½ÀÇ ÀÓ»ó·Ê´Â ÀüÄ¡ºÎ °³±³ÇÕÀ» µ¿¹ÝÇÑ °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀ» º¸À̴ ȯÀÚ¸¦ ´ë»óÀ¸·Î, ÀüÅëÀûÀÎ FR-4¿Í modified FR-4¸¦ ÀÌ¿ëÇÏ¿© Ä¡·áÇÑ °á°ú¸¦ ºñ±³ÇÑ °ÍÀÌ´Ù. ù ¹ø° ÀÓ»ó·Ê´Â ÀüÅëÀûÀÎ FR-4¸¦ »ç¿ëÇÑ °æ¿ì·Î¼­ ÀüÄ¡ºÎ °³±³ÇÕÀº °³¼±µÇ¾úÀ¸³ª °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀÇ ÇüÅ°¡ ½ÉÇØÁ³´Ù. ±×·¯³ª µÎ ¹ø°¿Í ¼¼ ¹ø° ÀÓ»ó·Ê¿¡¼­´Â modified FR-4¸¦ »ç¿ëÇÑ °á°ú, ÀüÄ¡ºÎ °³±³ÇÕ°ú III±Þ ºÎÁ¤±³ÇÕÀÌ µ¿½Ã¿¡ °³¼±µÈ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.

Anterior open bite is one in which the teeth in the anterior portion of the maxilla and mandible are vertically apart and lack the overlapping necessary for the incisive function when the mandible is in closed position.

Anterior open bite is a result of the interaction of many different etiologic factors including thumb and finger sucking, lip and tongue habits, airway obstruction, skeletal growth abnormalities and its tendency may appear with any type of skeletal patterns, such as Class I, II or III malocclusion types.

Though the treatment methods for anterior open bite are various, the conventional FR-r, designed by Rolf Fr ***** nkel, is known to be effective in treating open bite cases with Class I or II skeletal patterns.

It is ?? »õ that an incidence of skeletal Class II is high in the Occidentals, and open bite is accompanied by these malocclusion type in many cases. However, an incidence of skeletal Class III is high in the Orientals, and open bite is sometimes accompanied by skeletal Class III in many cases. Although the use of the conventional FR-4 was effective in the treatment of open bite, skeletal Class III would be worsened. So, a modified FR-4(placing the labial bow in the lower, the labial pads in the upper) was designed for the treatment of patients showing skeletal Class III and open bite.

Å°¿öµå

°ñ°Ý¼º ¥²±Þ ºÎÁ¤±³ÇÕ;ÀüÄ¡ºÎ °³±³ÇÕ;ÀüÅëÀûÀÎ FR-4;modified FR-4
Anterior open bite;Conventional FR-4;Modified FR-4;Skeletal Class¥² malocclusion

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