Dental malpractice expert witnesses practice in a variety of fields, including clinical dentistry, oral surgery, endodontics, periodontics, and prosthodontics. Some of the most common specialties include dental standard of care, informed consent, treatment planning, implant failures, and nerve injury claims. They can opine on the effects of negligent dental treatment, misdiagnosis, delayed care, improper extractions, and resulting pain, infection, or long term disability.