Management options and long-term follow-ups for permanent double incisors: six to eleven-year case reports

BMC Oral Health. 2024 Feb 13;24(1):225. doi: 10.1186/s12903-024-04000-7.

Abstract

Background: Double teeth are dental anomalies that can lead to aesthetic and orthodontic problems.

Case presentation: This report discusses two cases involving the multidisciplinary management of permanent maxillary left lateral incisors fused with a supernumerary tooth in two girls aged 9 and 10. Following intraoral and radiographic examinations, one was diagnosed with fusion, and the other was diagnosed with concrescence. The crown of the fused incisor was separated using a burs and extracted intraorally. The concrescent incisor was separated along its length using a laser and intentionally replanted extraorally. After a 6-year follow-up, no pathological signs were observed in the fused incisor. However, after an 11-year follow-up, external resorption was observed in the concrescent incisor.

Conclusions: Both incisors remained asymptomatic throughout the observation period. This case report highlights two different and effective methods employed to preserve the natural function, form, and aesthetics of double incisors.

Keywords: Concrescence; Double teeth; Fusion; Hemisection; Intentional replantation.

Publication types

  • Case Reports

MeSH terms

  • Anodontia*
  • Crowns
  • Female
  • Follow-Up Studies
  • Humans
  • Incisor* / abnormalities*
  • Incisor* / diagnostic imaging
  • Maxilla
  • Tooth Crown / abnormalities
  • Tooth, Supernumerary* / diagnostic imaging
  • Tooth, Supernumerary* / surgery

Supplementary concepts

  • Single upper central incisor