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Cephalometric Characteristics of the Patients with Developed Anterior Open Bite Following Anterior Disc Dislocation without Reductions
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ÇãÀ±°æ/Hur YK
ÃÖÀç°©/Choi JK
KMID : 0355220060310030255
Abstract
ÀÓ»óÀûÀ¸·Î ºñÁ¤º¹¼º °üÀý¿øÆÇÀüÀ§·Î Áø´ÜµÈ 3¸íÀÇ È¯ÀÚ¿¡¼ À̵éÀº ¸ðµÎ ¹°¸®Ä¡·á, ¾à¹°Ä¡·á¸¸ÀÌ ÇàÇØÁø ȯÀÚ·Î ³»¿ø Áß¿¡ °©ÀÛ½º·± ±³ÇÕº¯È ¹× ÀüÄ¡ºÎ °³±³ÇÕÀ» ³ªÅ¸³»¾ú´Ù. Á¾·¡¿¡ ¾Ë·ÁÁø °³±³ÇÕÀÇ ¹ß»ýÀº ·ù¸¶Æ¼Áò °üÀý¿°À̳ª ¾çÃø°úµÎÀÇ ½ÉÇÑ ÅðÇ༺ º¯È°¡ ÀÖ´Â °æ¿ì¿¡ »ó´çÇÑ °úµÎÁöÁöÀÇ »ó½Ç·Î ÈĹæÁöÁö¸¦ ÀÒ°Ô µÇ¾î ±¸Ä¡µéÀÌ °úµµÇÏ°Ô Á¢ÃËÇÏ°í ÀüÄ¡ °³±³ÇÕÀÌ ¹ß»ýµÉ ¼ö ÀÖ´Â °ÍÀº ÀÌ¹Ì Àß ¾Ë·ÁÁø »ç½ÇÀ̳ª, °úµÎÁöÁöÀÇ »ó½ÇÀÌ ¾ø´Â ºñÁ¤º¹¼º °üÀý¿øÆÇÀüÀ§¸¸À¸·Î ƯÁ¤ ȯÀÚ¿¡¼´Â °³±³ÇÕÀÇ ¹ß»ýÀÌ °¡´ÉÇϸç ÀÌ´Â ±¸Ä¡ºÎ Ä¡¾ÆÀÇ ÁõÃâ¿¡ ÀÇÇÑ ÀüÄ¡ºÎ °³±³ÇÕÀÌ¶ó º¼ ¼ö ¾øÀ¸¸ç, ÇϾÇÀÇ ÈÄÇϹæ ȸÀüÀÇ °á°ú·Î º¼ ¼ö ÀÖ´Ù. À̵é 3ȯÀÚµéÀÇ ÀüüÀûÀÎ °ñ°ÝÀû Ư¡Àº (1)±¸Ä¡ºÎ ¾Þ±Û¾¾ 1±Þ ±³ÇÕ°ü°è¿Í õÇÇ°³ ±³ÇÕ, (2)³ôÀº ÇϾÇÇÏ¿¬°¢, (3)³ôÀº ÇϾǰ¢ µîÀ¸·Î ºÁ¼ »óÇϾÇÀÇ °ñ°ÝÀû ÇüÅ°¡ ¥±±Þ°ú ¥²±Þ¿¡ °ü°è¾øÀÌ ¼öÁ÷Àû ¼ºÀåÀÌ °ÇÑ ¾È¸ðÇüÅ¿¡¼ °©ÀÛ½º·± °³±³ÇÕÀÌ ¹ß»ýµÉ ¼ö ÀÖÀ¸¸®¶ó »ý°¢µÈ´Ù.
¾ÕÀ¸·Î °³±³ÇÕÀÌ ¹ß»ýµÇ´Â °üÀý¿øÆÇÀüÀ§ ȯÀÚ¿¡¼ ÇϾÇÀÇ ÈÄÇϹæ ȸÀüÀÇ ¿øÀÎÀ» ¹àÈ÷°í, ÀÌ·¯ÇÑ °ñ°ÝÀûÀΠƯ¡ÀÌ ÃøµÎÇϾÇÀå¾ÖÀÇ ¿øÀÎ ÀÎÀÚ°¡ µÉ ¼ö ÀÖ´Â Áö ´õ ¸¹Àº ¿¬±¸°¡ ÇÊ¿äÇϸ®¶ó »ý°¢µÈ´Ù.
Objectives: This article reported three patients developed anterior open bite seemed to be related to TMJ anterior disc dislocation without reduction(ADD WO R), but no evidence of condylar destructive or collapse and analyzed the craniofacial skeletal structure by means of cephalometric analysis.
Results: All patients suddenly developed a centric relation/centric occlusion discrepancy, an increased overjet and an anterior open bite following ADD WO R. All patients had Angle¡¯s Class I occlusion and shallow bite, but they had skeletally Class III and Class II pattern and all were vertically significant hyperdivergent type.
Conclusions: These 3 patients had characteristics of common facial morphology including: (1)Angle classification Class I and shallow bite, (2)high mandibular plane angle, (3)high gonial angle. Developed anterior open bite resulted from clockwise rotation of the mandible related TMJ ADD WO R, rather than a result from the eruption of posterior teeth. We hypothesize rotation may relate to attached direction of masticatory muscle.
Å°¿öµå
Developed anterior open bite;ADD WO R;Acute CR/CO discrepancy;Clockwise rotation;±Þ¼º ÀüÄ¡ºÎ °³±³ÇÕ;±Þ¼º Áß½ÉÀ§/±³ÇÕÀ§ Â÷ÀÌ;ÇϾÇÀÇ ÈÄÇϹæȸÀü
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