Relevant Anatomy Traumatic tooth displacements are defined progressively as: Concussion—Nondisplaced, nonmobile tooth, but with inflammation of periodontal ligament resulting in sensitivity of tooth to touch or pressure Subluxation—Nondisplaced, but mobile (loose) tooth Luxation—Displaced but not avulsed tooth Avulsion—Tooth completely removed from socket (complete luxation) A relatively intact tooth socket (alveolar bone) to support the tooth is needed for successful reimplantation Positioning Position the patient inclined and with the occiput supported.