Dentigerous cysts are benign odontogenic cysts associated with the crowns of deciduous, permanent or supernumerary teeth. When dentigerous cysts surround impacted teeth, they often displace the teeth into ectopic positions; ectopic teeth in the maxilla may be displaced into the maxillary sinus. A review of the literature on this condition is provided, and we report on six consecutive cases of dentigerous cysts associated with an ectopic third molar in the maxillary sinus, focusing on their conservative surgical treatment. bs_bs_banner Oral Surgery ISSN 1752-2471 72 Oral Surgery 7(S1) (2014) 72-78.Sivolella et al.Maxillary dentigerous cyst and ectopic third molar 73 Oral Surgery 7(S1) (2014) 72-78.
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