title: Unilaterally impacted maxillary central incisor and canine with ipsilateral transposed canine-lateral incisor.
abstract: Concurrent impaction and transposition of maxillary anterior teeth is uncommon and poses a challenge for dentists. Early diagnosis and management of eruption disturbances benefits esthetic and functional outcomes. This article describes the treatment of a teenager who had impactions of the left maxillary central incisor and canine as well as ipsilateral canine-lateral incisor transposition. Treatment alternatives and effective orthodontic techniques are delineated. To optimize the treatment results, the impacted maxillary canine was surgically exposed and orthodontically distalized with an innovative cantilever. Subsequently, the deeply impacted maxillary central incisor was uncovered and orthodontically mesialized into the arch. Finally, the displaced maxillary lateral incisor was brought into its normal position. The combined surgical-orthodontic approach resolved a difficult clinical issue and avoided additional restorations. An esthetic, functional outcome was achieved and satisfied the patient.
authors.affiliation: Department of Family Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, ROC.
authors.forename: Po-Sung
authors.initials: PS
authors.lastname: Fu
authors.forename: Jen-Chyan
authors.initials: JC
authors.lastname: Wang
authors.forename: Yi-Min
authors.initials: YM
authors.lastname: Wu
authors.forename: Ta-Ko
authors.initials: TK
authors.lastname: Huang
authors.forename: Wen-Cheng
authors.initials: WC
authors.lastname: Chen
authors.forename: Yu-Chuan
authors.initials: YC
authors.lastname: Tseng
authors.forename: Chin-Huang
authors.initials: CH
authors.lastname: Tseng
authors.forename: Chun-Cheng
authors.initials: CC
authors.lastname: Hung
mesh_terms: D000293:Adolescent; D002508:Cephalometry; D054893:Cone-Beam Computed Tomography; D003481:Cuspid / Q000002:abnormalities*; D005260:Female; D006801:Humans; D007180:Incisor / Q000002:abnormalities*; D008311:Malocclusion, Angle Class I / Q000534:rehabilitation*; D008437:Maxilla / Q000002:abnormalities*; D014095:Tooth, Impacted / Q000000981:diagnostic imaging / Q000534:rehabilitation / Q000601:surgery*
references.citation: Am J Orthod Dentofacial Orthop. 1995 May;107(5):505-17
references.pmid: 7733060
references.citation: Angle Orthod. 1996;66(2):147-52
references.pmid: 8712493
references.citation: Oral Surg Oral Med Oral Pathol Oral Radiol. 2012 Feb;113(2):260-7
references.pmid: 22677744
references.citation: Am J Orthod Dentofacial Orthop. 2005 Oct;128(4):418-23
references.pmid: 16214621
references.citation: Am J Orthod Dentofacial Orthop. 2012 Sep;142(3):374-83
references.pmid: 22920704
references.citation: Int J Oral Maxillofac Implants. 2006 Nov-Dec;21(6):867-78
references.pmid: 17190296
references.citation: Oral Surg Oral Med Oral Pathol. 1985 Apr;59(4):420-5
references.pmid: 3858781
references.citation: Am J Orthod Dentofacial Orthop. 2002 Dec;122(6):657-60
references.pmid: 12490878
references.citation: Dent Clin North Am. 1993 Apr;37(2):181-204
references.pmid: 8477864
references.citation: Angle Orthod. 2010 Mar;80(2):275-85
references.pmid: 19905852
references.citation: Angle Orthod. 1989 Winter;59(4):271-6
references.pmid: 2688487
references.citation: Am J Orthod Dentofacial Orthop. 2011 Jun;139(6):834-44
references.pmid: 21640891
references.citation: Am J Orthod Dentofacial Orthop. 2012 Dec;142(6):750-7
references.pmid: 23195360
references.citation: Am J Orthod Dentofacial Orthop. 1992 Feb;101(2):159-71
references.pmid: 1739070
references.citation: Am J Orthod Dentofacial Orthop. 2007 Apr;131(4 Suppl):S59-67
references.pmid: 17448387
references.citation: Am J Orthod Dentofacial Orthop. 2007 May;131(5):666-9
references.pmid: 17482089
references.citation: Am J Orthod Dentofacial Orthop. 2009 Mar;135(3):390-9
references.pmid: 19268839
references.citation: Am J Orthod Dentofacial Orthop. 2001 Feb;119(2):127-34
references.pmid: 11174558
references.citation: Am J Orthod Dentofacial Orthop. 2010 Feb;137(2):160.e1-7; discussion 160-1
references.pmid: 20152661
references.citation: Angle Orthod. 2000 Aug;70(4):339-48
references.pmid: 10961785