Which finding is the strongest relative contraindication to dental implant placement?

Active, uncontrolled periodontal disease (and the bacterial load and bone loss it represents) compromises osseointegration and is a major risk for peri-implantitis and implant failure; it must be controlled before implant placement. Severe hyposalivation also raises risk but uncontrolled periodontal infection is the stronger contraindication.Other options: Resolvable gingivitis, an adjacent restored tooth, and prior orthodontics are not contraindications.Key exam takeaway: Control periodontal disease before placing implants; active infection threatens osseointegration.