The causes of early implant failures during the osseointegration process include poor quality and quantity of bone and soft tissue, 1–8 the patient’s medical condition, 2, 6, 8–10 unfavorable patient habits (bruxism, heavy long-term smoking, poor oral hygiene, others), 3, 4, 6, 8, 11 inadequate surgical analysis and technique 3, 7–9, 11 inadequate prosthetic analysis and technique, 3, 7, 8, 11–13 suboptimal implant design and surface characteristics 6, 9, 13 implant position or location 14 and unknown factor...
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