Sakka et al reported risk factors for dental implant failures. Control of risk factors may reduce the risk of implant failure. The authors are from Al-Farabi Dental College, University of Al-Baath and University of Aleppo in Saudi Arabia and Syria.
Patient selection: dental implant
Outcome: implant failure (need to remove implant)
General risk factors for implant complications:
(1) suboptimal implant design
(2) improper prosthetic construction
Risk factors for early implant failure (failure to achieve osseointegratoin):
(1) lack of primary stability
(2) surgical issues (trauma, inadequate prosthodontics, inadequate surgery)
(3) infection
(4) poor bone quality and/or quantity
(5) comorbid conditions (AIDS, uncontrolled diabetes, osteoporosis)
(6) drugs (corticosteroid therapy, bisphosphonates)
(7) smoking
Risk factors for late failure (failure to preserve osseointegration)
(1) occlusal overload
(2) peri-implantitis
