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Autogenous onlay bone grafts fixed with screw implants for the treatment of severely resorbed maxillae. Radiographic evaluation of preoperative bone dimensions, postoperative bone loss, and changes in soft-tissue profile.

Identifieur interne : 009841 ( Ncbi/Curation ); précédent : 009840; suivant : 009842

Autogenous onlay bone grafts fixed with screw implants for the treatment of severely resorbed maxillae. Radiographic evaluation of preoperative bone dimensions, postoperative bone loss, and changes in soft-tissue profile.

Auteurs : E. Nyström [Suède] ; J. Ahlqvist ; K E Kahnberg ; J B Rosenquist

Source :

RBID : pubmed:8961015

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English descriptors

Abstract

Thirty patients with severely resorbed edentulous maxillae underwent combined treatment of iliac bone onlay graft and titanium implants. The patients were followed for 3 years. They were radiographically examined before surgery to evaluate the bone volume at the intended implant sites. Only 13/156 implant sites were suitable for implant insertion. The bone level at the implant surfaces was evaluated after 6 months and 1, 2, and 3 years, respectively. There was a continuing decrease of the bone level throughout the follow-up period with a mean loss of 4.9 mm after 3 years and with no difference between sexes. Twenty-six implants were radiographically examined before removal, and only three of these implant sites showed radiographic signs of failure. The soft-tissue profile was analyzed cephalometrically by the subtraction technique. The upper lip generally moved inward and the apex of the nose and the columella downward and inward. The anterior facial height increased in most of the patients, resulting in a downward and inward change of the lower lip, the mentolabial sulcus, the soft-tissue pogonion, and the soft-tissue gnathion.

PubMed: 8961015

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<title xml:lang="en">Autogenous onlay bone grafts fixed with screw implants for the treatment of severely resorbed maxillae. Radiographic evaluation of preoperative bone dimensions, postoperative bone loss, and changes in soft-tissue profile.</title>
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<name sortKey="Nystrom, E" sort="Nystrom, E" uniqKey="Nystrom E" first="E" last="Nyström">E. Nyström</name>
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<nlm:affiliation>Department of Oral and Maxillofacial Surgery, Umeå University, Sweden.</nlm:affiliation>
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<term>Aged</term>
<term>Alveolar Ridge Augmentation (adverse effects)</term>
<term>Alveolar Ridge Augmentation (methods)</term>
<term>Bone Resorption (diagnostic imaging)</term>
<term>Bone Resorption (etiology)</term>
<term>Bone Resorption (pathology)</term>
<term>Bone Resorption (surgery)</term>
<term>Bone Transplantation (adverse effects)</term>
<term>Bone Transplantation (methods)</term>
<term>Cephalometry</term>
<term>Chin (pathology)</term>
<term>Dental Implantation, Endosseous (adverse effects)</term>
<term>Dental Implants (adverse effects)</term>
<term>Dental Restoration Failure</term>
<term>Face</term>
<term>Female</term>
<term>Follow-Up Studies</term>
<term>Humans</term>
<term>Jaw, Edentulous (diagnostic imaging)</term>
<term>Jaw, Edentulous (pathology)</term>
<term>Jaw, Edentulous (rehabilitation)</term>
<term>Jaw, Edentulous (surgery)</term>
<term>Lip (pathology)</term>
<term>Male</term>
<term>Maxilla (diagnostic imaging)</term>
<term>Maxilla (pathology)</term>
<term>Maxilla (surgery)</term>
<term>Maxillary Diseases (diagnostic imaging)</term>
<term>Maxillary Diseases (etiology)</term>
<term>Maxillary Diseases (pathology)</term>
<term>Maxillary Diseases (surgery)</term>
<term>Middle Aged</term>
<term>Nose (pathology)</term>
<term>Radiography</term>
<term>Sex Factors</term>
<term>Subtraction Technique</term>
<term>Transplantation, Autologous</term>
<term>Vertical Dimension</term>
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<term>Adulte</term>
<term>Adulte d'âge moyen</term>
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<term>Dimension verticale</term>
<term>Face</term>
<term>Facteurs sexuels</term>
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<term>Humains</term>
<term>Implants dentaires (effets indésirables)</term>
<term>Lèvre (anatomopathologie)</term>
<term>Maladies du maxillaire supérieur ()</term>
<term>Maladies du maxillaire supérieur (anatomopathologie)</term>
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<term>Maladies du maxillaire supérieur (étiologie)</term>
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<term>Mâchoire édentée (anatomopathologie)</term>
<term>Mâchoire édentée (imagerie diagnostique)</term>
<term>Mâchoire édentée (rééducation et réadaptation)</term>
<term>Mâle</term>
<term>Nez (anatomopathologie)</term>
<term>Pose d'implant dentaire endo-osseux (effets indésirables)</term>
<term>Radiographie</term>
<term>Reconstruction de crête alvéolaire ()</term>
<term>Reconstruction de crête alvéolaire (effets indésirables)</term>
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<term>Technique de soustraction</term>
<term>Transplantation autologue</term>
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<term>Transplantation osseuse (effets indésirables)</term>
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<term>Alveolar Ridge Augmentation</term>
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<term>Adult</term>
<term>Aged</term>
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<term>Female</term>
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<term>Adulte d'âge moyen</term>
<term>Céphalométrie</term>
<term>Dimension verticale</term>
<term>Face</term>
<term>Facteurs sexuels</term>
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<term>Reconstruction de crête alvéolaire</term>
<term>Résorption osseuse</term>
<term>Sujet âgé</term>
<term>Technique de soustraction</term>
<term>Transplantation autologue</term>
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<front>
<div type="abstract" xml:lang="en">Thirty patients with severely resorbed edentulous maxillae underwent combined treatment of iliac bone onlay graft and titanium implants. The patients were followed for 3 years. They were radiographically examined before surgery to evaluate the bone volume at the intended implant sites. Only 13/156 implant sites were suitable for implant insertion. The bone level at the implant surfaces was evaluated after 6 months and 1, 2, and 3 years, respectively. There was a continuing decrease of the bone level throughout the follow-up period with a mean loss of 4.9 mm after 3 years and with no difference between sexes. Twenty-six implants were radiographically examined before removal, and only three of these implant sites showed radiographic signs of failure. The soft-tissue profile was analyzed cephalometrically by the subtraction technique. The upper lip generally moved inward and the apex of the nose and the columella downward and inward. The anterior facial height increased in most of the patients, resulting in a downward and inward change of the lower lip, the mentolabial sulcus, the soft-tissue pogonion, and the soft-tissue gnathion.</div>
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