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Migration of implants into the maxillary sinus: two clinical cases
Pablo Galindo1, Elena Sánchez-Fernández, Gustavo Avila
1Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Granada, Spain.
The International Journal of Oral & Maxillofacial Implants
|April 21, 2005
Summary
Dental implants can migrate into the maxillary sinus years after placement, especially in patients with insufficient posterior maxilla bone height. This study explores the mechanisms behind this rare complication.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Implantology
- Sinus Complications
Background:
- Maxillary sinus invasion is a known complication of dental implant placement, particularly in cases with limited posterior bone height.
- Sinusitis can occur during implant surgery, but late migration into the sinus cavity after functional use is rarely reported.
Observation:
- Two clinical cases are presented where dental implants migrated apically into the maxillary sinus several years post-implantation.
- This late-stage migration occurred despite initial successful placement.
Findings:
- The study investigates the phenomenon of delayed implant migration into the maxillary sinus.
- Potential mechanisms contributing to this late apical movement are hypothesized and discussed.
Implications:
- Understanding these migration mechanisms is crucial for preventing late implant failures and sinus complications.
- This research highlights the importance of long-term monitoring for dental implants in the posterior maxilla.