Vertical ridge augmentation around dental implants using a membrane technique and autogenous bone or allografts in humans.
Identifieur interne : 009628 ( Main/Exploration ); précédent : 009627; suivant : 009629Vertical ridge augmentation around dental implants using a membrane technique and autogenous bone or allografts in humans.
Auteurs : M. Simion [Italie] ; S A Jovanovic ; P. Trisi ; A. Scarano ; A. PiattelliSource :
- The International journal of periodontics & restorative dentistry [ 0198-7569 ] ; 1998.
Descripteurs français
- KwdFr :
- Adulte, Adulte d'âge moyen, Biopsie, Densité osseuse, Humains, Mandibule (), Mandibule (anatomopathologie), Mandibule (imagerie diagnostique), Mâchoire partiellement édentée (), Mâchoire partiellement édentée (anatomopathologie), Mâchoire partiellement édentée (imagerie diagnostique), Polytétrafluoroéthylène (usage thérapeutique), Pose d'implant dentaire endo-osseux (instrumentation), Radiographie, Reconstruction de crête alvéolaire (), Sujet âgé, Titane, Transplantation osseuse (), Vis orthopédiques.
- MESH :
- anatomopathologie : Mandibule, Mâchoire partiellement édentée.
- imagerie diagnostique : Mandibule, Mâchoire partiellement édentée.
- usage thérapeutique : Polytétrafluoroéthylène, Pose d'implant dentaire endo-osseux.
- Adulte, Adulte d'âge moyen, Biopsie, Densité osseuse, Humains, Mandibule, Mâchoire partiellement édentée, Radiographie, Reconstruction de crête alvéolaire, Sujet âgé, Titane, Transplantation osseuse, Vis orthopédiques.
English descriptors
- KwdEn :
- Adult, Aged, Alveolar Ridge Augmentation (methods), Biopsy, Bone Density, Bone Screws, Bone Transplantation (methods), Dental Implantation, Endosseous (instrumentation), Humans, Jaw, Edentulous, Partially (diagnostic imaging), Jaw, Edentulous, Partially (pathology), Jaw, Edentulous, Partially (surgery), Mandible (diagnostic imaging), Mandible (pathology), Mandible (surgery), Middle Aged, Polytetrafluoroethylene (therapeutic use), Radiography, Titanium.
- MESH :
- chemical , therapeutic use : Polytetrafluoroethylene.
- diagnostic imaging : Jaw, Edentulous, Partially, Mandible.
- instrumentation : Dental Implantation, Endosseous.
- methods : Alveolar Ridge Augmentation, Bone Transplantation.
- pathology : Jaw, Edentulous, Partially, Mandible.
- surgery : Jaw, Edentulous, Partially, Mandible.
- Adult, Aged, Biopsy, Bone Density, Bone Screws, Humans, Middle Aged, Radiography, Titanium.
Abstract
This study investigated the effect on vertical bone regeneration of the addition of demineralized freeze-dried bone allograft or autogenous bone chips to a membrane technique. Twenty partially edentulous patients with vertical jawbone deficiencies were selected for this study. The patients were divided into two groups of 10 individuals. The 10 patients of Group A received 26 Brånemark implants in 10 surgical sites. The 10 patients of Group B received 32 implants in 12 surgical sites. Fifty-two out of 58 implants (22 in Group A and 30 in Group B) extended 1.5 to 7.5 mm superior to the bone crest. Titanium-reinforced expanded polytetrafluoroethylene membranes were used to cover the implants and, before complete membrane fixation, demineralized freeze-dried bone allograft particles were condensed under the membrane in Group A, and autogenous bone chips were used in Group B. At the reentry after 7 to 11 months the membranes were removed and a small biopsy was collected from 11 sites comprehending the miniscrews. The clinical measurements from Group A demonstrated a mean vertical bone gain of 3.1 mm (SD = 0.9 mm, range 1 to 5 mm) with a mean percentage of bone gain of 124% (SD = 46.6%). The measurements from Group B showed a mean vertical bone gain of 5.02 mm (SD = 2.3 mm, range 1 to 8.5 mm) with a mean percentage of bone gain of 95% (SD = 26.8%). Histomorphometric analysis of the present study clearly demonstrated a direct correlation between the density of the pre-existing bone and the density of the regenerated bone. The mean percentage of new bone-titanium contact was from 39.1% to 63.2%, depending on the quality of the pre-existing bone. Both the clinical and histologic results indicate a beneficial effect of the addition of demineralized freeze-dried bone allograft or autogenous bone particles to vertical ridge augmentation procedures in humans.
PubMed: 9558553
Affiliations:
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Le document en format XML
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<term>Biopsy</term>
<term>Bone Density</term>
<term>Bone Screws</term>
<term>Bone Transplantation (methods)</term>
<term>Dental Implantation, Endosseous (instrumentation)</term>
<term>Humans</term>
<term>Jaw, Edentulous, Partially (diagnostic imaging)</term>
<term>Jaw, Edentulous, Partially (pathology)</term>
<term>Jaw, Edentulous, Partially (surgery)</term>
<term>Mandible (diagnostic imaging)</term>
<term>Mandible (pathology)</term>
<term>Mandible (surgery)</term>
<term>Middle Aged</term>
<term>Polytetrafluoroethylene (therapeutic use)</term>
<term>Radiography</term>
<term>Titanium</term>
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<term>Adulte d'âge moyen</term>
<term>Biopsie</term>
<term>Densité osseuse</term>
<term>Humains</term>
<term>Mandibule ()</term>
<term>Mandibule (anatomopathologie)</term>
<term>Mandibule (imagerie diagnostique)</term>
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<term>Mâchoire partiellement édentée (anatomopathologie)</term>
<term>Mâchoire partiellement édentée (imagerie diagnostique)</term>
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<term>Reconstruction de crête alvéolaire ()</term>
<term>Sujet âgé</term>
<term>Titane</term>
<term>Transplantation osseuse ()</term>
<term>Vis orthopédiques</term>
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<front><div type="abstract" xml:lang="en">This study investigated the effect on vertical bone regeneration of the addition of demineralized freeze-dried bone allograft or autogenous bone chips to a membrane technique. Twenty partially edentulous patients with vertical jawbone deficiencies were selected for this study. The patients were divided into two groups of 10 individuals. The 10 patients of Group A received 26 Brånemark implants in 10 surgical sites. The 10 patients of Group B received 32 implants in 12 surgical sites. Fifty-two out of 58 implants (22 in Group A and 30 in Group B) extended 1.5 to 7.5 mm superior to the bone crest. Titanium-reinforced expanded polytetrafluoroethylene membranes were used to cover the implants and, before complete membrane fixation, demineralized freeze-dried bone allograft particles were condensed under the membrane in Group A, and autogenous bone chips were used in Group B. At the reentry after 7 to 11 months the membranes were removed and a small biopsy was collected from 11 sites comprehending the miniscrews. The clinical measurements from Group A demonstrated a mean vertical bone gain of 3.1 mm (SD = 0.9 mm, range 1 to 5 mm) with a mean percentage of bone gain of 124% (SD = 46.6%). The measurements from Group B showed a mean vertical bone gain of 5.02 mm (SD = 2.3 mm, range 1 to 8.5 mm) with a mean percentage of bone gain of 95% (SD = 26.8%). Histomorphometric analysis of the present study clearly demonstrated a direct correlation between the density of the pre-existing bone and the density of the regenerated bone. The mean percentage of new bone-titanium contact was from 39.1% to 63.2%, depending on the quality of the pre-existing bone. Both the clinical and histologic results indicate a beneficial effect of the addition of demineralized freeze-dried bone allograft or autogenous bone particles to vertical ridge augmentation procedures in humans.</div>
</front>
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