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Published on: October 18, 2021
Complications associated with implant migration into the maxillary sinus cavity
Pablo Galindo-Moreno1, Miguel Padial-Molina, Gustavo Avila
1Oral Surgery and Implant Dentistry Department, School of Dentistry, University of Granada, Granada, Spain. pgalindo@ugr.es
Clinical Oral Implants Research
|November 19, 2011
Summary
Dental implant migration into the maxillary sinus is a growing concern. Factors like implant design, insufficient bone height, and inadequate site preparation significantly increase this risk, highlighting the need for careful planning.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Implantology
- Biomaterials Science
Background:
- Maxillary sinus migration of dental implants is an uncommon but increasingly reported complication.
- Potential causes include poor primary stability, pressure changes, autoimmune reactions, and occlusal force distribution.
- Understanding influencing factors is crucial for preventing this adverse event.
Purpose of the Study:
- To analyze factors influencing dental implant migration into the maxillary sinus cavity.
- To identify specific risk factors associated with this complication.
- To provide insights for improving implant placement procedures.
Main Methods:
- Retrospective analysis of 14 patients with 15 migrated implants.
- Diagnosis confirmed using imaging techniques like cone beam computerized tomography and panoramic radiography.
- Clinical data were collected and statistically analyzed.
Main Results:
- Majority of cases had inadequate bone height (below 6 mm).
- Nearly 50% of patients lacked prior site preparation; 73.3% received no biomaterials.
- Key risk factors identified: cylindrical implant design, specific diameters, partial removable dentures, low residual bone height (5-6.9 mm), patient age, and biomaterial choice.
Conclusions:
- Careful patient selection and meticulous treatment planning are essential.
- Appropriate sinus augmentation techniques must be employed to minimize migration risk.
- Addressing identified risk factors can improve dental implant success rates.
