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Preprosthetic Vertical distraction osteogenesis of the mandible using an l-shaped osteotomy and titanium membranes for guided bone regeneration

Identifieur interne : 008B25 ( Main/Exploration ); précédent : 008B24; suivant : 008B26

Preprosthetic Vertical distraction osteogenesis of the mandible using an l-shaped osteotomy and titanium membranes for guided bone regeneration

Auteurs : Clemens N. Klug [Autriche] ; Gabriele A. Millesi-Schobel [Autriche] ; Werner Millesi [Autriche] ; Franz Watzinger [Autriche] ; Rolf Ewers [Autriche]

Source :

Journal of oral and maxillofacial surgery [ 0278-2391 ] ; 2001.

RBID : Pascal:02-0131424

Descripteurs français

Pascal (Inist)
- Edentation, Atrophie, Mandibule, Chirurgie préprothétique, Distraction, Ostéogenèse, Vertical, Membrane, Titane, Guidage, Ostéotomie, Forme en L, Traitement, Technique, Résultat, Homme.
Wicri :
- topic : Titane, Homme.

English descriptors

KwdEn :
- Atrophy, Distraction, Edentulousness, Guidance, Human, L shape, Mandible, Membrane, Osteogenesis, Osteotomy, Preprosthetic surgery, Result, Technique, Titanium, Treatment, Vertical.

Abstract

Purpose: Vertical osteodistraction is a new alternative method for alveolar ridge augmentation of the mandible. The purpose of this article is describe a technique using an L-shaped osteotomy and titanium membranes for guided bone regeneration (GBR) in the distraction gap. Patients and Methods: Ten patients with severe atrophy of the edentulous molar region of the mandible underwent vertical callus distraction in 13 sites using intraoral microplate distractors. An L-shaped osteotomy with a short vertical part mesially and a longer horizontal part ending in the retromolar region was made, and the osteotomized segment was fixed to the mandibular ramus at its distal edge by a microplate, which became the center of rotation when distraction began. In this way, more callus generation could be achieved mesially than in the distal molar region. Follow-up computed tomography (CT) scans reconstructed axially to the axis of the mandible revealed semilunar excavations of the generated bone buccally in the distraction gap in the first cases. Clinical inspection on removal of the distractors showed fibrous connective tissue in the gap. Therefore, to prevent this from happening, titanium membranes covering the distraction gap were applied in subsequent cases. Results: Ten patients (13 sites) were treated by vertical callus distraction. In 4 cases, GBR was achieved using titanium membranes. In all cases, the increase in alveolar height was sufficient to make dental implantation possible. In 1 patient, a fracture of the distractor occurred, and dehiscence was observed in 2 cases. These complications did not change the plan of therapy nor did they influence the results. The CT scans showed a homogenous surface on the regenerated mandible in the cases of GBR application. Conclusion: Both an L-shaped osteotomy and the application of titanium membranes for GBR in the distraction gap are of great value for mandibular augmentation, producing a physiologically shaped alveolar ridge.

Affiliations:

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Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Atrophy</term>
<term>Distraction</term>
<term>Edentulousness</term>
<term>Guidance</term>
<term>Human</term>
<term>L shape</term>
<term>Mandible</term>
<term>Membrane</term>
<term>Osteogenesis</term>
<term>Osteotomy</term>
<term>Preprosthetic surgery</term>
<term>Result</term>
<term>Technique</term>
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<term>Treatment</term>
<term>Vertical</term>
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<term>Atrophie</term>
<term>Mandibule</term>
<term>Chirurgie préprothétique</term>
<term>Distraction</term>
<term>Ostéogenèse</term>
<term>Vertical</term>
<term>Membrane</term>
<term>Titane</term>
<term>Guidage</term>
<term>Ostéotomie</term>
<term>Forme en L</term>
<term>Traitement</term>
<term>Technique</term>
<term>Résultat</term>
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<front><div type="abstract" xml:lang="en">Purpose: Vertical osteodistraction is a new alternative method for alveolar ridge augmentation of the mandible. The purpose of this article is describe a technique using an L-shaped osteotomy and titanium membranes for guided bone regeneration (GBR) in the distraction gap. Patients and Methods: Ten patients with severe atrophy of the edentulous molar region of the mandible underwent vertical callus distraction in 13 sites using intraoral microplate distractors. An L-shaped osteotomy with a short vertical part mesially and a longer horizontal part ending in the retromolar region was made, and the osteotomized segment was fixed to the mandibular ramus at its distal edge by a microplate, which became the center of rotation when distraction began. In this way, more callus generation could be achieved mesially than in the distal molar region. Follow-up computed tomography (CT) scans reconstructed axially to the axis of the mandible revealed semilunar excavations of the generated bone buccally in the distraction gap in the first cases. Clinical inspection on removal of the distractors showed fibrous connective tissue in the gap. Therefore, to prevent this from happening, titanium membranes covering the distraction gap were applied in subsequent cases. Results: Ten patients (13 sites) were treated by vertical callus distraction. In 4 cases, GBR was achieved using titanium membranes. In all cases, the increase in alveolar height was sufficient to make dental implantation possible. In 1 patient, a fracture of the distractor occurred, and dehiscence was observed in 2 cases. These complications did not change the plan of therapy nor did they influence the results. The CT scans showed a homogenous surface on the regenerated mandible in the cases of GBR application. Conclusion: Both an L-shaped osteotomy and the application of titanium membranes for GBR in the distraction gap are of great value for mandibular augmentation, producing a physiologically shaped alveolar ridge.</div>
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Preprosthetic Vertical distraction osteogenesis of the mandible using an l-shaped osteotomy and titanium membranes for guided bone regeneration

Preprosthetic Vertical distraction osteogenesis of the mandible using an l-shaped osteotomy and titanium membranes for guided bone regeneration

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri