Mandibular fracture in conjunction with bicortical penetration, using wide-diameter endosseous dental implants.
Prosthodontic rehabilitation of a patient with an atrophic edentulous mandible presents a significant challenge in restoring esthetics and function. The purpose of this clinical report is to describe fracture of an atrophic edentulous mandible opposing maxillary natural dentition in association with endosseous dental implants. The patient received two wide-diameter implants in the anterior mandible for an implant-assisted mandibular overdenture, in which the implants penetrated the inferior border of the mandible for bicortical stabilization. Three months following implant placement surgery, the patient experienced pain, swelling, and intraoral purulent drainage around the right implant. Panoramic radiograph revealed a fracture of the mandible through the right implant site and signs of infection around the left implant. The implants were removed surgically, and open reduction and fixation of the fracture site were undertaken using a titanium bone fixation plate. This clinical report demonstrates that placement of wide-diameter implants in conjunction with bicortical penetration in a severely atrophic edentulous mandible can risk fracture of the mandible.
Division of Prosthodontics, Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI 48109-1078, USA. ohws@umich.edu
Won-suk
WS
Oh
Eleni D
ED
Roumanas
John
J
Beumer
D001284:Atrophy; D001860:Bone Plates; D003758:Dental Implantation, Endosseous / Q000009:adverse effects*; D015921:Dental Implants / Q000009:adverse effects*; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D003826:Denture, Complete, Lower; D003828:Denture, Overlay; D020878:Device Removal; D004487:Edema / Q000209:etiology; D005500:Follow-Up Studies; D005593:Fracture Fixation, Internal / Q000295:instrumentation; D006801:Humans; D007575:Jaw, Edentulous / Q000534:rehabilitation / Q000601:surgery; D008297:Male; D008334:Mandible / Q000601:surgery; D008337:Mandibular Fractures / Q000209:etiology*; D008875:Middle Aged; D010149:Postoperative Pain / Q000209:etiology; D013530:Surgical Wound Infection / Q000209:etiology
D015921:Dental Implants