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Implants and sinus-inlay graft in a 1-stage procedure in severely atrophied maxillae: prosthodontic aspects in a 3-year follow-up study.

Identifieur interne : 011219 ( Main/Exploration ); précédent : 011218; suivant : 011220

Implants and sinus-inlay graft in a 1-stage procedure in severely atrophied maxillae: prosthodontic aspects in a 3-year follow-up study.

Auteurs : J I Smedberg [Suède] ; P. Johansson ; D. Ekenb Ck ; D. Wannfors

Source :

RBID : pubmed:11669249

Descripteurs français

English descriptors

Abstract

The aim of this 3-year prospective study was to evaluate the prosthetic treatment in 2 groups of maxillary edentulous patients with similar age and gender distribution: a study group of 39 patients treated with intra-sinus block bone grafts and implants in a 1-stage procedure, and a control (reference) group of 37 patients treated with implants and no grafting. In the study group, bone volumes were regarded as insufficient for implant treatment unless a bone grafting procedure was performed (posterior alveolar bone height was less than 5 mm). Self-tapping Nobel Biocare implants were used in both groups of patients. In the study group, 35 fixed partial dentures and 4 overdentures were placed, and in the control group 34 fixed partial dentures and 3 overdentures were placed. All patients were followed for at least 3 years. The 3-year follow-up examination included examination of a number of clinical parameters as well as the type of abutment and evaluation of stability of prosthesis retention screws and abutment screws. During the follow-up period, 2 patients were lost from the study group and 4 patients from the control group, giving a total of 70 patients available for examination after 3 years (8% dropout rate). Both the amount of plaque and gingival bleeding were significantly lower in the study group than in the control group. The presence of attached gingiva was 25% in the study group and 35% in the control group. The number of angulated abutments was significantly higher in the study group than in the control group. There was no significant difference in the number of prosthetic complications in the 2 groups of patients. Neither was there any significant difference in prosthesis screw or abutment screw stability between the 2 groups. The type of abutment did not significantly influence the stability of prosthesis retention screws or abutment screws in either of the groups. However, prosthesis screw stability was significantly greater than abutment screw stability in both groups of patients. It can be concluded that the prosthetic outcome was similar in the 2 groups of patients, regardless of whether or not a bone grafting procedure was used.

PubMed: 11669249


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Le document en format XML

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<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Alveolar Ridge Augmentation (methods)</term>
<term>Atrophy</term>
<term>Bone Transplantation</term>
<term>Case-Control Studies</term>
<term>Chi-Square Distribution</term>
<term>Dental Abutments</term>
<term>Dental Implantation, Endosseous</term>
<term>Dental Implants</term>
<term>Dental Plaque (classification)</term>
<term>Dental Prosthesis Design</term>
<term>Dental Prosthesis Retention</term>
<term>Dental Prosthesis, Implant-Supported</term>
<term>Denture, Overlay</term>
<term>Denture, Partial, Fixed</term>
<term>Female</term>
<term>Follow-Up Studies</term>
<term>Gingiva (pathology)</term>
<term>Gingival Hemorrhage (classification)</term>
<term>Humans</term>
<term>Jaw, Edentulous (rehabilitation)</term>
<term>Jaw, Edentulous (surgery)</term>
<term>Jaw, Edentulous, Partially (rehabilitation)</term>
<term>Jaw, Edentulous, Partially (surgery)</term>
<term>Male</term>
<term>Maxilla (surgery)</term>
<term>Maxillary Sinus (surgery)</term>
<term>Middle Aged</term>
<term>Osseointegration</term>
<term>Prospective Studies</term>
<term>Statistics as Topic</term>
<term>Treatment Outcome</term>
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<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Atrophie</term>
<term>Conception de prothèse dentaire</term>
<term>Femelle</term>
<term>Gencive (anatomopathologie)</term>
<term>Humains</term>
<term>Hémorragie gingivale ()</term>
<term>Implants dentaires</term>
<term>Loi du khi-deux</term>
<term>Maxillaire ()</term>
<term>Mâchoire partiellement édentée ()</term>
<term>Mâchoire partiellement édentée (rééducation et réadaptation)</term>
<term>Mâchoire édentée ()</term>
<term>Mâchoire édentée (rééducation et réadaptation)</term>
<term>Mâle</term>
<term>Ostéo-intégration</term>
<term>Overdenture</term>
<term>Piliers dentaires</term>
<term>Plaque dentaire ()</term>
<term>Pose d'implant dentaire endo-osseux</term>
<term>Prothèse dentaire implanto-portée</term>
<term>Prothèse partielle fixe</term>
<term>Reconstruction de crête alvéolaire ()</term>
<term>Résultat thérapeutique</term>
<term>Rétention de prothèse dentaire</term>
<term>Sinus maxillaire ()</term>
<term>Statistiques comme sujet</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Transplantation osseuse</term>
<term>Études cas-témoins</term>
<term>Études de suivi</term>
<term>Études prospectives</term>
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<term>Dental Implants</term>
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<keywords scheme="MESH" qualifier="anatomopathologie" xml:lang="fr">
<term>Gencive</term>
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<keywords scheme="MESH" qualifier="classification" xml:lang="en">
<term>Dental Plaque</term>
<term>Gingival Hemorrhage</term>
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<keywords scheme="MESH" qualifier="methods" xml:lang="en">
<term>Alveolar Ridge Augmentation</term>
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<keywords scheme="MESH" qualifier="pathology" xml:lang="en">
<term>Gingiva</term>
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<keywords scheme="MESH" qualifier="rehabilitation" xml:lang="en">
<term>Jaw, Edentulous</term>
<term>Jaw, Edentulous, Partially</term>
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<term>Mâchoire partiellement édentée</term>
<term>Mâchoire édentée</term>
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<term>Jaw, Edentulous</term>
<term>Jaw, Edentulous, Partially</term>
<term>Maxilla</term>
<term>Maxillary Sinus</term>
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<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Atrophy</term>
<term>Bone Transplantation</term>
<term>Case-Control Studies</term>
<term>Chi-Square Distribution</term>
<term>Dental Abutments</term>
<term>Dental Implantation, Endosseous</term>
<term>Dental Prosthesis Design</term>
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<term>Dental Prosthesis, Implant-Supported</term>
<term>Denture, Overlay</term>
<term>Denture, Partial, Fixed</term>
<term>Female</term>
<term>Follow-Up Studies</term>
<term>Humans</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Osseointegration</term>
<term>Prospective Studies</term>
<term>Statistics as Topic</term>
<term>Treatment Outcome</term>
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<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Atrophie</term>
<term>Conception de prothèse dentaire</term>
<term>Femelle</term>
<term>Humains</term>
<term>Hémorragie gingivale</term>
<term>Implants dentaires</term>
<term>Loi du khi-deux</term>
<term>Maxillaire</term>
<term>Mâchoire partiellement édentée</term>
<term>Mâchoire édentée</term>
<term>Mâle</term>
<term>Ostéo-intégration</term>
<term>Overdenture</term>
<term>Piliers dentaires</term>
<term>Plaque dentaire</term>
<term>Pose d'implant dentaire endo-osseux</term>
<term>Prothèse dentaire implanto-portée</term>
<term>Prothèse partielle fixe</term>
<term>Reconstruction de crête alvéolaire</term>
<term>Résultat thérapeutique</term>
<term>Rétention de prothèse dentaire</term>
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<term>Statistiques comme sujet</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Transplantation osseuse</term>
<term>Études cas-témoins</term>
<term>Études de suivi</term>
<term>Études prospectives</term>
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<front>
<div type="abstract" xml:lang="en">The aim of this 3-year prospective study was to evaluate the prosthetic treatment in 2 groups of maxillary edentulous patients with similar age and gender distribution: a study group of 39 patients treated with intra-sinus block bone grafts and implants in a 1-stage procedure, and a control (reference) group of 37 patients treated with implants and no grafting. In the study group, bone volumes were regarded as insufficient for implant treatment unless a bone grafting procedure was performed (posterior alveolar bone height was less than 5 mm). Self-tapping Nobel Biocare implants were used in both groups of patients. In the study group, 35 fixed partial dentures and 4 overdentures were placed, and in the control group 34 fixed partial dentures and 3 overdentures were placed. All patients were followed for at least 3 years. The 3-year follow-up examination included examination of a number of clinical parameters as well as the type of abutment and evaluation of stability of prosthesis retention screws and abutment screws. During the follow-up period, 2 patients were lost from the study group and 4 patients from the control group, giving a total of 70 patients available for examination after 3 years (8% dropout rate). Both the amount of plaque and gingival bleeding were significantly lower in the study group than in the control group. The presence of attached gingiva was 25% in the study group and 35% in the control group. The number of angulated abutments was significantly higher in the study group than in the control group. There was no significant difference in the number of prosthetic complications in the 2 groups of patients. Neither was there any significant difference in prosthesis screw or abutment screw stability between the 2 groups. The type of abutment did not significantly influence the stability of prosthesis retention screws or abutment screws in either of the groups. However, prosthesis screw stability was significantly greater than abutment screw stability in both groups of patients. It can be concluded that the prosthetic outcome was similar in the 2 groups of patients, regardless of whether or not a bone grafting procedure was used.</div>
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