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Malpositioned maxillary anterior implants correction using segmental osteotomy with three-dimensional guide and

Kang-Hee Lee1, Jun-Hyung Jeon1, Sion Choi2

  • 1Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Korea.

Journal of the Korean Association of Oral and Maxillofacial Surgeons
|October 29, 2025
PubMed
Summary

Correcting a misplaced dental implant in the smile zone is possible. A novel technique using 3D technology and bone grafting successfully repositioned a malaligned implant, restoring esthetics and function without removal.

Keywords:
Bone transplantationDental implantsOsteotomyThree-dimensional imaging

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Area of Science:

  • Implant Dentistry
  • Oral and Maxillofacial Surgery
  • Digital Dentistry

Background:

  • Maxillary anterior implants are esthetically critical.
  • Implant malposition can cause gingival recession and fixture exposure.
  • Immediate implant placement after extraction increases malposition risk.

Purpose of the Study:

  • To describe the successful correction of a facially malpositioned maxillary anterior implant.
  • To evaluate the efficacy of segmental osteotomy with 3D guidance and bone grafting.
  • To assess the impact on prosthetic esthetics and treatment timeline.

Main Methods:

  • Segmental osteotomy using a 3D-printed guide and micro-saw.
  • Rotation and repositioning of the bone segment (180°).
  • Simultaneous autogenous bone grafting and digital restoration fabrication.

Main Results:

  • Complete resolution of buccal implant exposure.
  • Satisfactory soft tissue contour and successful osseointegration.
  • Avoidance of implant removal and shortened treatment duration.

Conclusions:

  • Segmental osteotomy with 3D guidance is a minimally invasive solution for malpositioned implants.
  • This technique enhances prosthetic esthetics and patient outcomes.
  • Digital technology integration streamlines complex implant corrections.