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Retrograde peri-implantitis associated with residual cysts: 3 Case reports
Journal of the American Dental Association (1939)
|November 26, 2020
Summary
Retrograde peri-implantitis linked to residual cysts can be successfully managed with surgical intervention and bone regeneration. Long-term follow-up confirms implant survival after treatment.
Area of Science:
- Dental Implantology
- Oral Surgery
- Periodontology
Background:
- Retrograde peri-implantitis is an uncommon complication.
- Residual cysts can compromise dental implant success.
- Immediate and delayed implant placement protocols were used.
Observation:
- Three patients presented with pain and swelling around implants.
- Clinical, radiographic, and histopathologic data confirmed infected residual cysts.
- Surgical enucleation of cysts and implant surface decontamination were performed.
Findings:
- Bone regeneration procedures were implemented.
- All treated implants were successfully retained long-term (3-10 years).
- Successful management of retrograde peri-implantitis with residual cysts was achieved.
Implications:
- Highlights an unusual clinical presentation of peri-implantitis.
- Stresses the importance of managing infection and cysts during implant placement.
- Emphasizes the critical role of long-term follow-up for implant success.

