关键词: 含牙囊肿, 袋形术, 正畸治疗

Abstract: Dentigerous cyst is one of the common cystic lesions of the jaw bone，which is usually accompanied by impacted teeth. Although the traditional surgical removal method（enucleation）can eradicate the lesion，it is very likely to cause dentition defect，nerve injury，adjacent tooth injury or loss of dental pulp vitality. At present，more and more scholars advocate the use of marsupialization to reduce the injury of adjacent structures and preserve the intracyctic embedded teeth，and satisfactory results have been achieved by marsupialization combined with orthodontic traction to promote the eruption of cyst-associated teeth if they are deeply impacted. The article briefly introduces the formation of dentigerous cysts，indications for marsupialization and orthodontic traction for impacted teeth within cyst.

Key words: dentigerous cyst, marsupialization, orthodontic treatment