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当个别乳前牙早失滞留或上下恒前牙萌出次序紊乱可导致个别恒前牙的反(牙合)。个别恒前牙反(牙合)时,上下前牙相互锁结,影响上下颌首前部发育,并造成创伤(牙合),日久可引起牙周病的病变。因此,个别恒前牙反(牙合)应即时矫正。快速矫治的方法是应用塑料联冠斜面导板,是一种快速功能矫正器。这种矫正器的
When an individual premature loss of milk anterior desease or up and down a constant eruption sequence of the front teeth can lead to a single anti-anterior teeth (occlusion). Individual anti-anterior teeth (occlusal), the upper and lower front teeth interlock with each other, affecting the development of upper and lower jaw anterior head and cause trauma (occlusion), over time can cause lesions of periodontal disease. Therefore, the individual constant anterior teeth (occlusion) should be corrected immediately. Rapid correction method is the application of plastic crown bevel guide, is a rapid functional appliance. This type of appliance