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前牙拥挤是常见的错(牙合)畸形之一,北京医学院口腔正畸科统计,牙列拥挤约占全部错(牙合)畸形的76％。但是,临床上单纯前牙拥挤较少,多与其它错(牙合)畸形如深复(牙合)、深复盖、反咬(牙合),开(牙合)等伴随出现。在矫正牙列拥挤的过程中,其它错(牙合)畸形常可相继的得以矫治。 牙齿的形成,牙列的发育和颌面部组织器官的生长等都与前牙拥挤的发生有着密切的关系。概括的说,前牙拥挤发生的主要原因是颌弓前部发育不足,即牙量骨量的不协调,它是现代人类错(牙合)的一个首要机别。
Anterior crowded crowding is one of the most common malocclusions. According to statistics of orthodontics in Beijing Medical College, crowding of dentition accounts for about 76% of all malocclusions. However, there is less crowding of the anterior teeth in clinical practice, which is accompanied by other malocclusions such as deep complex occlusion, deep occlusion, occlusal occlusion and open occlusion. In the process of correcting crowded crowds, other malocclusions can often be treated one after another. The formation of teeth, the development of dentition and the growth of maxillofacial tissues and organs are all closely related to the crowding of anterior teeth. To summarize, the main reason for the crowding of the anterior teeth is the underdevelopment of the anterior arch of the jaw, which is the uncoordinated amount of the skeletal bone mass. It is one of the primary causes of modern human occlusion.