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Prospective Follow‐Up Study of 95 Patients with Edentulous Mandibles Treated According to the Branemark Novum Concept

Identifieur interne : 007E78 ( Main/Exploration ); précédent : 007E77; suivant : 007E79

Prospective Follow‐Up Study of 95 Patients with Edentulous Mandibles Treated According to the Branemark Novum Concept

Auteurs : Per Engstrand [Suède] ; Kerstin Grondahl [Suède] ; Lars-Olof Öhrnell [Suède] ; Peter Nilsson [Suède] ; Ulf Nannmark [Suède] ; Per-Ingvar Branemark [Suède]

Source :

RBID : ISTEX:142092B9959A333F44241DC991227C4276623C22

Descripteurs français

English descriptors

Abstract

Background: The long‐term predictability reported with the traditional two‐staged Brånemark method has led to developments aimed at simplifying the technique and reducing healing time. Results from a pilot study using the Brånemark Novum concept are promising, and it has been shown possible to fabricate and deliver an implant‐supported fixed prosthesis to the patient on the day of surgery. Purpose: The objective of this study is to report clinical and radiographic outcomes in a group of patients treated according to the Brånemark Novum concept. Materials and Methods: Ninety‐five patients with edentulous mandibles were consecutively included in the study. Three specially designed fixtures were placed in each patient (285 fixtures in total) using drilling templates. The fixtures were immediately splinted with a prefabricated substructure, and fixed prostheses were delivered the same day in 67% of the patients. For the rest, prosthesis delivery ranged from 1 to 40 days (mean 5.6 d). Clinical and radiographic examinations were performed after 3 months, 6 months, 1 year, and then annually. The follow‐up time was 1 to 5 years (mean 2.5 yr). Results: The cumulative prosthesis survival rate was 99%. Eighteen fixtures (6.3%) failed in 13 patients. Kaplan‐Meier survival estimates demonstrated a probability implant survival at 1 year of 95.0% (94 patients), at 3 years of 93.3% (47 patients), and at 5 years of 93.3% (9 patients). The mean bone loss was 0.73 mm between the examinations at 3 months and 1 year, 0.16 mm during the second year, and 0.13 mm annually during years 3 to 5. Conclusions: Comparable results, related to continuous prosthesis stability, were shown for the Novum approach compared with the traditional two‐staged procedure. Survival of individual fixtures is lower when immediate loading is applied.

Url:
DOI: 10.1111/j.1708-8208.2003.tb00176.x


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Le document en format XML

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<term>Acrylic resin teeth</term>
<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Anatomic conditions</term>
<term>Baseline patient profiles</term>
<term>Bone level</term>
<term>Bone loss</term>
<term>Bone quality</term>
<term>Bone quantity</term>
<term>Brinemark</term>
<term>Brinemark implants</term>
<term>Brinemark novum concept</term>
<term>Brinemark osseointegration center</term>
<term>Center fixture</term>
<term>Comparable results</term>
<term>Complete dentures</term>
<term>Continuous prosthesis stability</term>
<term>Cumulative prosthesis survival rate</term>
<term>Dental Implantation, Endosseous (methods)</term>
<term>Dental Implants</term>
<term>Dental Prosthesis, Implant-Supported</term>
<term>Dental Restoration Failure</term>
<term>Dental prostheses</term>
<term>Dental scanograms</term>
<term>Denture, Complete, Immediate</term>
<term>Different time intervals</term>
<term>Distal surfaces</term>
<term>Drilling templates</term>
<term>Edentulous</term>
<term>Edentulous mandibles</term>
<term>Female</term>
<term>First molar</term>
<term>First year</term>
<term>Fixture</term>
<term>Fixture failure</term>
<term>Fixture failures</term>
<term>Fixture length</term>
<term>Fixture placement</term>
<term>Fixture survival</term>
<term>Follow-Up Studies</term>
<term>Frequency distribution</term>
<term>Functional loading</term>
<term>Gothenburg</term>
<term>Gothenburg university</term>
<term>Healing time</term>
<term>Humans</term>
<term>Immediate loading</term>
<term>Implant</term>
<term>Implant surgery</term>
<term>Individual fixtures</term>
<term>Intraoral periapical radiographs</term>
<term>Jaw, Edentulous (diagnostic imaging)</term>
<term>Jaw, Edentulous (rehabilitation)</term>
<term>Logistic Models</term>
<term>Logistic regression analysis</term>
<term>Male</term>
<term>Mandible</term>
<term>Mandibular base</term>
<term>Middle Aged</term>
<term>Nonthreaded fixture length</term>
<term>Novum</term>
<term>Novum approach</term>
<term>Oral maxillofac implants</term>
<term>Osseointegrated implants</term>
<term>Osseointegration</term>
<term>Permutation tests</term>
<term>Practical guide</term>
<term>Preliminary results</term>
<term>Present investigation</term>
<term>Present study</term>
<term>Probability implant survival</term>
<term>Prospective Studies</term>
<term>Prosthesis</term>
<term>Prosthesis delivery</term>
<term>Prosthetic</term>
<term>Prosthetic reconstructions</term>
<term>Radiographic</term>
<term>Radiographic examinations</term>
<term>Radiographic measurements</term>
<term>Radiography</term>
<term>Reference point</term>
<term>Resampling methods</term>
<term>Second year</term>
<term>Statistics, Nonparametric</term>
<term>Study period</term>
<term>Survival estimates</term>
<term>Testing hypotheses</term>
<term>Time Factors</term>
<term>Traditional procedure</term>
<term>Treatment protocol</term>
</keywords>
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<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Facteurs temps</term>
<term>Femelle</term>
<term>Humains</term>
<term>Implants dentaires</term>
<term>Mandibule</term>
<term>Modèles logistiques</term>
<term>Mâchoire édentée (imagerie diagnostique)</term>
<term>Mâchoire édentée (rééducation et réadaptation)</term>
<term>Mâle</term>
<term>Pose d'implant dentaire endo-osseux ()</term>
<term>Prothèse dentaire complète immédiate</term>
<term>Prothèse dentaire implanto-portée</term>
<term>Radiographie</term>
<term>Statistique non paramétrique</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Échec de restauration dentaire</term>
<term>Études de suivi</term>
<term>Études prospectives</term>
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<term>Jaw, Edentulous</term>
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<keywords scheme="MESH" qualifier="imagerie diagnostique" xml:lang="fr">
<term>Mâchoire édentée</term>
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<keywords scheme="MESH" qualifier="methods" xml:lang="en">
<term>Dental Implantation, Endosseous</term>
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<term>Jaw, Edentulous</term>
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<keywords scheme="MESH" qualifier="rééducation et réadaptation" xml:lang="fr">
<term>Mâchoire édentée</term>
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<term>Acrylic resin teeth</term>
<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Anatomic conditions</term>
<term>Baseline patient profiles</term>
<term>Bone level</term>
<term>Bone loss</term>
<term>Bone quality</term>
<term>Bone quantity</term>
<term>Brinemark</term>
<term>Brinemark implants</term>
<term>Brinemark novum concept</term>
<term>Brinemark osseointegration center</term>
<term>Center fixture</term>
<term>Comparable results</term>
<term>Complete dentures</term>
<term>Continuous prosthesis stability</term>
<term>Cumulative prosthesis survival rate</term>
<term>Dental Prosthesis, Implant-Supported</term>
<term>Dental Restoration Failure</term>
<term>Dental prostheses</term>
<term>Dental scanograms</term>
<term>Denture, Complete, Immediate</term>
<term>Different time intervals</term>
<term>Distal surfaces</term>
<term>Drilling templates</term>
<term>Edentulous</term>
<term>Edentulous mandibles</term>
<term>Female</term>
<term>First molar</term>
<term>First year</term>
<term>Fixture</term>
<term>Fixture failure</term>
<term>Fixture failures</term>
<term>Fixture length</term>
<term>Fixture placement</term>
<term>Fixture survival</term>
<term>Follow-Up Studies</term>
<term>Frequency distribution</term>
<term>Functional loading</term>
<term>Gothenburg</term>
<term>Gothenburg university</term>
<term>Healing time</term>
<term>Humans</term>
<term>Immediate loading</term>
<term>Implant</term>
<term>Implant surgery</term>
<term>Individual fixtures</term>
<term>Intraoral periapical radiographs</term>
<term>Logistic Models</term>
<term>Logistic regression analysis</term>
<term>Male</term>
<term>Mandible</term>
<term>Mandibular base</term>
<term>Middle Aged</term>
<term>Nonthreaded fixture length</term>
<term>Novum</term>
<term>Novum approach</term>
<term>Oral maxillofac implants</term>
<term>Osseointegrated implants</term>
<term>Osseointegration</term>
<term>Permutation tests</term>
<term>Practical guide</term>
<term>Preliminary results</term>
<term>Present investigation</term>
<term>Present study</term>
<term>Probability implant survival</term>
<term>Prospective Studies</term>
<term>Prosthesis</term>
<term>Prosthesis delivery</term>
<term>Prosthetic</term>
<term>Prosthetic reconstructions</term>
<term>Radiographic</term>
<term>Radiographic examinations</term>
<term>Radiographic measurements</term>
<term>Radiography</term>
<term>Reference point</term>
<term>Resampling methods</term>
<term>Second year</term>
<term>Statistics, Nonparametric</term>
<term>Study period</term>
<term>Survival estimates</term>
<term>Testing hypotheses</term>
<term>Time Factors</term>
<term>Traditional procedure</term>
<term>Treatment protocol</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr">
<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Facteurs temps</term>
<term>Femelle</term>
<term>Humains</term>
<term>Implants dentaires</term>
<term>Mandibule</term>
<term>Modèles logistiques</term>
<term>Mâle</term>
<term>Pose d'implant dentaire endo-osseux</term>
<term>Prothèse dentaire complète immédiate</term>
<term>Prothèse dentaire implanto-portée</term>
<term>Radiographie</term>
<term>Statistique non paramétrique</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Échec de restauration dentaire</term>
<term>Études de suivi</term>
<term>Études prospectives</term>
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<front>
<div type="abstract" xml:lang="en">Background: The long‐term predictability reported with the traditional two‐staged Brånemark method has led to developments aimed at simplifying the technique and reducing healing time. Results from a pilot study using the Brånemark Novum concept are promising, and it has been shown possible to fabricate and deliver an implant‐supported fixed prosthesis to the patient on the day of surgery. Purpose: The objective of this study is to report clinical and radiographic outcomes in a group of patients treated according to the Brånemark Novum concept. Materials and Methods: Ninety‐five patients with edentulous mandibles were consecutively included in the study. Three specially designed fixtures were placed in each patient (285 fixtures in total) using drilling templates. The fixtures were immediately splinted with a prefabricated substructure, and fixed prostheses were delivered the same day in 67% of the patients. For the rest, prosthesis delivery ranged from 1 to 40 days (mean 5.6 d). Clinical and radiographic examinations were performed after 3 months, 6 months, 1 year, and then annually. The follow‐up time was 1 to 5 years (mean 2.5 yr). Results: The cumulative prosthesis survival rate was 99%. Eighteen fixtures (6.3%) failed in 13 patients. Kaplan‐Meier survival estimates demonstrated a probability implant survival at 1 year of 95.0% (94 patients), at 3 years of 93.3% (47 patients), and at 5 years of 93.3% (9 patients). The mean bone loss was 0.73 mm between the examinations at 3 months and 1 year, 0.16 mm during the second year, and 0.13 mm annually during years 3 to 5. Conclusions: Comparable results, related to continuous prosthesis stability, were shown for the Novum approach compared with the traditional two‐staged procedure. Survival of individual fixtures is lower when immediate loading is applied.</div>
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