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口腔不良习惯在错畸形的病因中占有重要的位置,约占各类错畸形病因的1/4。儿童的各种口腔不良习惯,可造成上下牙弓之间和上下牙弓内外之间肌肉动力的不平衡,而形成各种牙颌畸形。常见的不良习惯有以下几种:1 舌习惯 多发生在替牙期,儿童常用舌尖舔弄松动的乳牙或刚萌出的恒牙,都会形成舌习惯。舌习惯包括吐舌习惯、舔牙习惯和伸舌习惯。吐舌习惯是舌吐在上下前牙之间,阻碍恒牙的萌出使前牙形成梭形的开隙。舔牙习惯是用舌尖舔上下前牙的舌侧,使前牙向唇侧倾斜,散开出现牙间隙,甚至
Oral bad habits occupy an important position in the cause of malformation deformity, accounting for about 1/4 of all causes of malformation deformity. Children's bad oral habits, can cause up and down between the dental arch and the dental arch between the inside and outside the imbalance between the power and the formation of various dento-mal deformities. Common bad habits are the following: 1 tongue habit occurs in the tooth period, the common tongue lick children loose teeth or just erupted permanent teeth, will form a tongue habit. Tongue habits include tongue habits, licking habits and tongue stretching habits. Tongue tongue tongue is spit between the upper and lower anterior teeth, impeding the eruption of permanent teeth to form a fusiform anterior open space. Licking teeth habit is to use the tip of the tongue licking the lingual side of the anterior teeth, so that the anterior teeth to the lip tilt, spread out the teeth gap, or even