Use of a CAD-CAM Surgical Template to Improve Accuracy for Simultaneous Implant Removal, New Implant Placement, and Bone Graft

J Prosthodont. 2022 Jun;31(5):452-455. doi: 10.1111/jopr.13451. Epub 2021 Nov 24.

Abstract

A fractured implant is considered a catastrophic failure that leads to the loss of the implant and the prosthesis. Available methods of implant removal include the reverse screw technique, use of trephines, or osteotomies around the implant. In case of a fractured implant, the access hole for the reverse screw technique is impossible, leading to the need for an osteotomy. When the apical part of the fractured implant is embedded in bone, finding the piece may lead to a more ample osteotomy and significant bone loss, complicating future implant placement. This technique presented utilized a CAD-CAM surgical template that was designed with the purpose of improving accuracy in finding the fractured part with minimal osteotomy, allowing for simultaneous placement of a new implant in the same site, with additional bone graft, utilizing the same template.

Keywords: 3D printed; Surgical template; broken implant; fractured implant.

MeSH terms

  • Bone Screws
  • Bone Transplantation
  • Computer-Aided Design
  • Dental Implantation, Endosseous / methods
  • Dental Implants*
  • Osteotomy / methods

Substances

  • Dental Implants