Related Experiment Video
Updated: Nov 12, 2025
Effects of Mechanical Methods Used in Peri-implantitis Treatment on Implant Surface Decontamination and Roughness
Published on: March 14, 2025
The risk factors of early implant failure: A retrospective study of 6113 implants
Xinyu Wu1, Si Chen1,2, Wei Ji1,2
1The State Key Laboratory Breeding Base of Basic Sciences of Stomatology, Key Laboratory of Oral Biomedicine, Ministry of Education (Hubei-MOST KLOS & KLOBM), School and Hospital of Stomatology, Wuhan University, Wuhan, China.
Background:
The risk factors of early implant failure were controversial among previous studies, especially for implants in different sites.
Purpose:
To analyze the rate and risk factors of early implant failure occurring before the placement of final prosthesis.
Materials And Methods:
A retrospective study was conducted based on electrical medical records of patients who received dental implant placement from 2015 to 2019. Generalized estimation equation analyses were used to explore potential risk factors influencing early implant failure.
Results:
Overall, 6113 implants in 3785 patients were included. The rate of early implant failure was 1.6% at patient level and 1.2% at implant level. The early implant failure was significantly associated with implants in the posterior maxilla, with specific surface modifications and in previously augmented sites (p < 0.05). Risk factors for maxillary implants included surface modification and bone augmentation procedures (p < 0.01), whereas risk factors for mandibular implants included gender and bone augmentation procedures (p < 0.05). For implants placed in previously augmented sites, implants placed in the anterior mandible had a higher risk of early failure (p < 0.05).
Conclusions:
The risk factors for early implant failures varied among different sites; hence, they should be comprehensively considered in presurgical treatment plan.
