Atrophic Edentulous Mandible Research Articles

Reconstruction of the severely atrophic edentulous mandible with the transmandibular implant system

Reconstruction of the severely atrophic edentulous mandible with the transmandibular implant system

Reconstruction of the severely atrophic edentulous mandible with endosseous implants: a 10-year longitudinal study

Reconstruction of the severely atrophic edentulous mandible with endosseous implants: a 10-year longitudinal study

Reduction of the compact and cancellous bone substances of the edentulous mandible caused by resorption

Examination of various bone sections of edentulous atrophic mandibles showed that the body of the mandible loses up to 60% of its original bone substance during progressive atrophy. Most of the bone loss occurs in a relatively early stage of the atrophic process. The greatest extent of bone reduction can be observed in the area of the second premolar and the first molar. In the interforaminal region, which is situated mesial from them, resorption, in most cases, is not as progressive as in the premolar/molar area. The compact and cancellous bone substances are most often equally affected by resorption. Moreover, it could be observed that the cancellous bone substance of extremely atrophic mandibles particularly in the interforaminal region, is marked by a significant increase in density. This might be interpreted as a restructuring process to compensate for bone losses and to secure the stability of the atrophic body of the mandible.

Reduction of the median mandibulotomy with the fixed mandibular implant

A technique is presented whereby a median mandibulotomy of an atrophic edentulous mandible is performed to gain access to an oropharyngeal tumor and is subsequently reapproximated with a four-pin FMI. The procedure allows reduction of the osteotomy site and provides intraoral implants that increase the stability and retentive properties of a mandibular prosthesis.

Infection after rigid internal fixation of mandibular fractures: A clinical and radiologic study

Of 214 patients with mandibular fractures treated following the AO/ASIF principle of rigid fixation, 13 patients (6.1%) developed postoperative infection. The yearly percentage decreased remarkably during the study period. When rigid fixation became a routine method, the infection rate was as low as the corresponding figure for cases treated with nonstable techniques and maxillomandibular fixation (MMF). All but one of the infected fractures were in the angular region of the mandible. Teeth had been extracted from the fracture line in 9 of the 10 dentulous patients. It was concluded that erroneous techniques had been used in almost all infected cases, because compression could not be achieved when there was an irregular fracture line, an atrophic edentulous mandible, or inadequate stability due to removal of a tooth in the line of fracture. In five patients, successful reoperation was performed using a reconstruction plate. Detailed radiologic examination was useful in assessment of infection and in follow-up.

Reconstruction of the severely atrophic edentulous mandible by means of autogenous bone grafts and simultaneous placement of osseointegrated implants

A method of reconstructing the severely atrophic mandible that simultaneously provides additional strength and the ability to house osseointegrated implants is presented. The performance of the procedure from an external approach minimizes the possibility of oral contamination and, therefore, infection. The procedure has been performed on 10 patients, with a longest follow-up of 3 years. A 93% success rate has been achieved, and bone resorption at the implant sites has thus far been negligible. Prosthetic rehabilitation has been done in 9 of the 10 cases; 3 have been tissue-supported prostheses, and 6 have been completely implant-supported prostheses.

Autogenous bone grafts for atrophic edentulous mandibles: A final report

While autogenous bone augmentations for atrophic edentulous mandibles are not the ideal solution for this problem, we do not share the pessimism of other investigators. The average loss of bone over the 92-month observation period was 60% for this small sample of eight patients. However, there was an 81% gain in bone height in the premolar-molar regions when compared with presurgical measurements. Seven of the eight patients believed these procedures were beneficial.

Prosthodontic Reconstruction with the Mandibular Staple Bone Plate

The atrophic edentulous mandible is treated successfully with a mandibular staple bone plate. The lower denture must be tissue-borne with retention and stability provided by the implant. An attachment with stress-breaking capability is necessary for the success of the reconstruction.

Interpositional bone-grafting of the atrophic edentulous mandible. A review.

Abstract— A review is provided of the development of a surgical approach to the atrophic edentulous mandible by the interposition of bone graft from the iliac crest. Past and recent results are evaluated and current treatment protocols outlined. A co‐ordinated surgical and prosthodontic approach to the atrophic mandible is presented.

Augmentation of an atrophic edentulous mandible by interpositional grafting with hydroxylapatite

The clinical use of densely sintered calcium hydroxylapatite as a substitute for autogenous bone in interpositional grafting of an atrophic edentulous mandible is described. Results indicate this material appears to be a successful bone substitute for use in the rebuilding of the atrophic mandible.

Unusual healing of a fracture of an atrophic mandible: Report of a case

Fractures of an atrophic edentulous mandible may present a serious problem in oral surgical treatment. A case is described in which a traumatic mandibular fracture, initially treated by means of a Gunning type of splint, and a subsequent spontaneous fracture on the opposite side were treated without mechanical fixation.

Bones and Joints: Augmentation rib grafting to the inferior border of the atrophic edentulous mandible: A five-year experience

Bones and Joints: Augmentation rib grafting to the inferior border of the atrophic edentulous mandible: A five-year experience

Augmentation rib grafting to the inferior border of the mandible.

AbstractSeveral techniques have been advocated for osseous augmentation of atrophic edentulous mandibles. This article presents a description of grafting rib to the inferior border of the mandible for augmentation in 31 cases. The indications, advantages, and disadvantages of the technique are outlined.

Augmentation rib grafting to the inferior border of the atrophic edentulous mandible: A 5-year experience

Inferior border rib grafting appears to be a useful procedure in providing bony augmentation for severely atrophic edentulous mandibles. Major advantages to the prosthodontic patient are that (1) remodeling and changes in the denture-bearing surfaces are minimal following surgery, (2) the interocclusal space is unaltered, (3) in nonunion body fractures occurring in severely atrophic mandibles, the ribs applied to the inferior-buccal and inferior-lingual aspects of the mandible hold the fragments in a much more favorable position, thus preventing superior elevation of the posterior segment and inferior displacement of the anterior segment, and (4) resorption rates seem acceptable. The patient should be informed of possible consequences. As with all preprosthetic special procedures, a psychosocial analysis may also be indicated.

The Andy Gump Frcture of the Mandible

Bilateral body fractures of the elderly edentulous atrophic mandible can cause a characteristic facial deformity and prolapse of the tongue into the pharynx, obstructing the airway (3). Early clinical and radiographic diagnosis of this injury is important. Stabilization of the fracture fragments restores the bony support for the tongue and helps establish patency of the airway.

The treatment of long standing bilateral fracture non- and mal-union in atrophic edentulous mandibles

Long standing non-unions and mal-unions of atrophic edentulous mandibular fractures present a serious problem in oral surgical management. This paper describes a method of surgical treatment which involves an open reduction, freshening of the host bone margins, and the placement of an autogenous particulate bone graft of cancellous bone and marrow placed within a mesh implant of titanium. No intermaxillary fixation need be employed in this technique. A series of 12 cases of long standing intractable non- and mal-union of atrophic edentulous mandibles are presented and three cases are described in detail. The authors believe that this procedure is an optimal one for the management of patients presenting with these types of deformities and with this form of functional loss.

Another way of treating fractures of the atrophic edentulous mandible

Summary The treatment of fractures of the edentulous, atrophic mandible with the usual surgical methods has proved unsatisfactory in our hands. We have therefore, searched for a more successful procedure and believe we have found a method utilizing autogenous or deep frozen rib grafts to immobilize the fragments. The grafts are placed around the mandibular ridge to include the fracture sites and are maintained and stabilized with at least two circum-mandibular wires for each fragment. With the use of autogenous bone, as described in this procedure, the fracture can be stabilized and at the same time the alveolar ridge augmented and shaped for prosthetic purposes. The treatment of 5 cases is presented: one includes an extensive bilateral nonunion of the edentulous mandible, the defect of which was bridged by a circular autogenous iliac crest graft. In the remaining 4 cases autogenous or deep frozen bank rib grafts were used. On the basis of the presented cases, the ideal treatment and possible errors are discussed.