Abstract
Background
Retrograde periimplantitis is a rapidly progressing periapical infection that forms around the implant apex. It is usually associated with sites adjacent to teeth with apical lesions; previous endodontic failures, retained root fragments etc. This study aimed to study the incidence of retrograde peri‐implantitis in sites with history of apical surgeries.
Methods
Patients with sites treated for both apicoectomy and implant placement presenting to the University of Michigan School of Dentistry from 2001 to 2016 were screened. A total of 502 apicoectomies were performed, only 25 of these fit the predetermined eligibility criteria and were thus included in this retrospective analysis.
Results
Implants that were placed in sites with a previous apical surgery had a cumulative survival rate of 92%. The incidence of periimplantitis was 8%, while the incidence of retrograde peri‐implantitis was 20%. There was an increased trend for retrograde peri‐implantitis in cases where the cause of extraction was persistent apical periodontitis (35.7%), but this increase didn't reach the level of statistical significance (P = 0.061).
Conclusions
Implants that are placed in sites with previous apical surgery are not at an increased risk of implant failure or retrograde peri‐implantitis.
This article is protected by copyright. All rights reserved
from
https://aap.onlinelibrary.wiley.com/doi/abs/10.1002/JPER.20-0056?af=R
No comments:
Post a Comment