The aim of this study was to review irritative and sensory disturbances following placement of dental implants. A literature search was made of PubMed for articles published between 2000 and 2010. Studies that reported sensory disturbances directly caused by the placement of dental implants were included. Sensory deficits or trigeminal neuropathy are caused by damage to the third branch of the trigeminal nerve during surgery. This manifests in the immediate postoperative period as a sensory deficit not usually associated with pain and generally transient. The literature reviewed reported irritative and sensory disturbances caused during surgery, after surgery, and as a result of complications. Postoperative pain appears after oral surgery as a result of inflammation associated with damage to tissue during surgery. Pain due to postoperative complications following implant placement was classified as neurogenic pain, peri-implant pain and bone pain.