Effect of extraosseous devices designed for vertical distraction of extreme resorbed mandibles on backward rotation of upper bone segments.
Identifieur interne : 005807 ( Main/Exploration ); précédent : 005806; suivant : 005808Effect of extraosseous devices designed for vertical distraction of extreme resorbed mandibles on backward rotation of upper bone segments.
Auteurs : Frits B T. Perdijk [Pays-Bas] ; Gert J. Meijer ; Peter J. Van Strijen ; Ron KooleSource :
- The British journal of oral & maxillofacial surgery [ 1532-1940 ] ; 2009.
Descripteurs français
- KwdFr :
- Céphalométrie, Dimension verticale, Fixateurs externes, Humains, Mandibule (), Mâchoire édentée (), Ostéogenèse par distraction (instrumentation), Overdenture, Pose d'implant dentaire endo-osseux, Processus alvéolaire (physiologie), Prothèse dentaire implanto-portée, Reconstruction de crête alvéolaire (instrumentation), Résorption alvéolaire (rééducation et réadaptation).
- MESH :
- physiologie : Processus alvéolaire.
- rééducation et réadaptation : Résorption alvéolaire.
- instrumentation : Céphalométrie, Dimension verticale, Fixateurs externes, Humains, Mandibule, Mâchoire édentée, Ostéogenèse par distraction, Overdenture, Pose d'implant dentaire endo-osseux, Prothèse dentaire implanto-portée, Reconstruction de crête alvéolaire.
English descriptors
- KwdEn :
- Alveolar Bone Loss (rehabilitation), Alveolar Process (physiology), Alveolar Ridge Augmentation (instrumentation), Cephalometry, Dental Implantation, Endosseous, Dental Prosthesis, Implant-Supported, Denture, Overlay, External Fixators, Humans, Jaw, Edentulous (surgery), Mandible (surgery), Osteogenesis, Distraction (instrumentation), Vertical Dimension.
- MESH :
- instrumentation : Alveolar Ridge Augmentation, Osteogenesis, Distraction.
- physiology : Alveolar Process.
- rehabilitation : Alveolar Bone Loss.
- surgery : Jaw, Edentulous, Mandible.
- Cephalometry, Dental Implantation, Endosseous, Dental Prosthesis, Implant-Supported, Denture, Overlay, External Fixators, Humans, Vertical Dimension.
Abstract
We studied the result of vertical distraction osteogenesis in 34 patients as a method of restoring vertical bone height in atrophic mandibles. Cephalometric radiographs were obtained preoperatively, immediately after the installation of the distractor, at the end of the active distraction period (1-2 weeks), before placement of implants, after a consolidation period of 12 weeks, and annually thereafter. Particular attention was paid to the changed position of the upper segment in relation to the basal segment, compared with before and after active distraction. To monitor the position of the distracted upper bone segment, both the improvement in bony height and the angle of the distracted upper bone segment were scored using the menton-pogonion line as a reference plane. Surprisingly in nearly all patients there was a backward rotation of the segment with lingual-tipping of the upper segment by a mean of 12 degrees that meant that in such cases only 87% of the maximum gain in bony height could be achieved. As a consequence of the backward tipping of the top of the distracted alveolar ridge, the position of the implants was also more lingually directed. However, in all cases sufficient bony volume was achieved to allow placement of implants. Distraction osteogenesis is a successful way of restoring atrophic mandibles to gain sufficient bony volume to allow placement of implants. However, the vector of distraction is unpredictable.
DOI: 10.1016/j.bjoms.2008.04.011
PubMed: 18547695
Affiliations:
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Meijer</name></author><author><name sortKey="Van Strijen, Peter J" sort="Van Strijen, Peter J" uniqKey="Van Strijen P" first="Peter J" last="Van Strijen">Peter J. 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Perdijk</name><affiliation wicri:level="1"><nlm:affiliation>Department of Oral and Maxillofacial Surgery, Hospital Gelderse Vallei. Ede, The Netherlands.</nlm:affiliation><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Hospital Gelderse Vallei. Ede</wicri:regionArea><wicri:noRegion>Hospital Gelderse Vallei. Ede</wicri:noRegion></affiliation></author><author><name sortKey="Meijer, Gert J" sort="Meijer, Gert J" uniqKey="Meijer G" first="Gert J" last="Meijer">Gert J. Meijer</name></author><author><name sortKey="Van Strijen, Peter J" sort="Van Strijen, Peter J" uniqKey="Van Strijen P" first="Peter J" last="Van Strijen">Peter J. Van Strijen</name></author><author><name sortKey="Koole, Ron" sort="Koole, Ron" uniqKey="Koole R" first="Ron" last="Koole">Ron Koole</name></author></analytic><series><title level="j">The British journal of oral & maxillofacial surgery</title><idno type="eISSN">1532-1940</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alveolar Bone Loss (rehabilitation)</term><term>Alveolar Process (physiology)</term><term>Alveolar Ridge Augmentation (instrumentation)</term><term>Cephalometry</term><term>Dental Implantation, Endosseous</term><term>Dental Prosthesis, Implant-Supported</term><term>Denture, Overlay</term><term>External Fixators</term><term>Humans</term><term>Jaw, Edentulous (surgery)</term><term>Mandible (surgery)</term><term>Osteogenesis, Distraction (instrumentation)</term><term>Vertical Dimension</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Céphalométrie</term><term>Dimension verticale</term><term>Fixateurs externes</term><term>Humains</term><term>Mandibule ()</term><term>Mâchoire édentée ()</term><term>Ostéogenèse par distraction (instrumentation)</term><term>Overdenture</term><term>Pose d'implant dentaire endo-osseux</term><term>Processus alvéolaire (physiologie)</term><term>Prothèse dentaire implanto-portée</term><term>Reconstruction de crête alvéolaire (instrumentation)</term><term>Résorption alvéolaire (rééducation et réadaptation)</term></keywords><keywords scheme="MESH" qualifier="instrumentation" xml:lang="en"><term>Alveolar Ridge Augmentation</term><term>Osteogenesis, Distraction</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Processus alvéolaire</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Alveolar Process</term></keywords><keywords scheme="MESH" qualifier="rehabilitation" xml:lang="en"><term>Alveolar Bone Loss</term></keywords><keywords scheme="MESH" qualifier="rééducation et réadaptation" xml:lang="fr"><term>Résorption alvéolaire</term></keywords><keywords scheme="MESH" qualifier="surgery" xml:lang="en"><term>Jaw, Edentulous</term><term>Mandible</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Cephalometry</term><term>Dental Implantation, Endosseous</term><term>Dental Prosthesis, Implant-Supported</term><term>Denture, Overlay</term><term>External Fixators</term><term>Humans</term><term>Vertical Dimension</term></keywords><keywords scheme="MESH" qualifier="instrumentation" xml:lang="fr"><term>Céphalométrie</term><term>Dimension verticale</term><term>Fixateurs externes</term><term>Humains</term><term>Mandibule</term><term>Mâchoire édentée</term><term>Ostéogenèse par distraction</term><term>Overdenture</term><term>Pose d'implant dentaire endo-osseux</term><term>Prothèse dentaire implanto-portée</term><term>Reconstruction de crête alvéolaire</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We studied the result of vertical distraction osteogenesis in 34 patients as a method of restoring vertical bone height in atrophic mandibles. Cephalometric radiographs were obtained preoperatively, immediately after the installation of the distractor, at the end of the active distraction period (1-2 weeks), before placement of implants, after a consolidation period of 12 weeks, and annually thereafter. Particular attention was paid to the changed position of the upper segment in relation to the basal segment, compared with before and after active distraction. To monitor the position of the distracted upper bone segment, both the improvement in bony height and the angle of the distracted upper bone segment were scored using the menton-pogonion line as a reference plane. Surprisingly in nearly all patients there was a backward rotation of the segment with lingual-tipping of the upper segment by a mean of 12 degrees that meant that in such cases only 87% of the maximum gain in bony height could be achieved. As a consequence of the backward tipping of the top of the distracted alveolar ridge, the position of the implants was also more lingually directed. However, in all cases sufficient bony volume was achieved to allow placement of implants. Distraction osteogenesis is a successful way of restoring atrophic mandibles to gain sufficient bony volume to allow placement of implants. However, the vector of distraction is unpredictable.</div></front></TEI><affiliations><list><country><li>Pays-Bas</li></country></list><tree><noCountry><name sortKey="Koole, Ron" sort="Koole, Ron" uniqKey="Koole R" first="Ron" last="Koole">Ron Koole</name><name sortKey="Meijer, Gert J" sort="Meijer, Gert J" uniqKey="Meijer G" first="Gert J" last="Meijer">Gert J. Meijer</name><name sortKey="Van Strijen, Peter J" sort="Van Strijen, Peter J" uniqKey="Van Strijen P" first="Peter J" last="Van Strijen">Peter J. Van Strijen</name></noCountry><country name="Pays-Bas"><noRegion><name sortKey="Perdijk, Frits B T" sort="Perdijk, Frits B T" uniqKey="Perdijk F" first="Frits B T" last="Perdijk">Frits B T. Perdijk</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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