title: Complete resolution of a calcifying cystic odontogenic tumor with physiological eruption of a dislocated permanent tooth after marsupialization in a child with a mixed dentition: a case report.
abstract: Here, we report the complete resolution of a calcifying cystic odontogenic tumor (CCOT) in the right mandible after marsupialization in an 8-year-old girl with a mixed dentition. Clinical, radiographic, and histopathological findings showed a simple cystic variant of CCOT in the region of the deciduous second molar, with dislocation of the permanent second premolar tooth germ. Initial treatment involved marsupialization, including extraction of the involved deciduous tooth, incision of pathological tissue, and creation of a window in the extraction socket. The crown of the dislocated second premolar was exposed at the base of the cystic cavity after marsupialization. One year and nine months later, complete bone healing and spontaneous eruption of the second premolar were observed, providing evidence of the bone regeneration capacity and tooth germ eruption potential in children. No recurrence was observed after 7 years. The findings from this case suggest that marsupialization can be successfully applied for the treatment of CCOT in children with a mixed dentition.
authors.affiliation: Department of Pediatric Dentistry and Special Needs Dentistry, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. kemasuda@dent.kyushu-u.ac.jp.
authors.forename: Keiji
authors.initials: K
authors.lastname: Masuda
authors.affiliation: Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan. skawano@dent.kyushu-u.ac.jp.
authors.forename: Shintaro
authors.initials: S
authors.lastname: Kawano
authors.affiliation: Section of Pediatric Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan. hyamaza@dent.kyushu-u.ac.jp.
authors.forename: Haruyoshi
authors.initials: H
authors.lastname: Yamaza
authors.affiliation: Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan. t-sakamoto@dent.kyushu-u.ac.jp.
authors.forename: Taiki
authors.initials: T
authors.lastname: Sakamoto
authors.affiliation: Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan. kiyo@dent.kyushu-u.ac.jp.
authors.forename: Tamotsu
authors.initials: T
authors.lastname: Kiyoshima
authors.affiliation: Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan. seiji@dent.kyushu-u.ac.jp.
authors.forename: Seiji
authors.initials: S
authors.lastname: Nakamura
authors.affiliation: Section of Pediatric Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan. nonaka@dent.dent.kyushu-u.ac.jp.
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Nonaka
mesh_terms: D002114:Calcinosis / Q000473:pathology / Q000601:surgery*; D002648:Child; D003818:Dentition, Mixed; D005260:Female; D006801:Humans; D009808:Odontogenic Tumors / Q000473:pathology / Q000601:surgery*; D011379:Prognosis; D014078:Tooth Eruption; D014094:Tooth, Deciduous / Q000473:pathology / Q000601:surgery*