Marginal bone reaction to oral implants: a prospective comparative study of Astra Tech and Brånemark System implants
Identifieur interne : 008460 ( Main/Exploration ); précédent : 008459; suivant : 008461Marginal bone reaction to oral implants: a prospective comparative study of Astra Tech and Brånemark System implants
Auteurs : Per Strand [Suède] ; Hartmut Feldmann ; Bo Engquist ; Simon Dahlgren ; Eva Engquist ; Kerstin Gröndahl [Suède]Source :
- Clinical Oral Implants Research [ 0905-7161 ] ; 2002-02.
English descriptors
- KwdEn :
- Abutment, Abutment connection, Astra, Astra tech, Astra tech implants, Baseline, Baseline examination, Bone level, Bone level changes, Bone loss, Clin, Edentulous, Engquist, Entre, Impl, Implant, Implant losses, Implant systems, Implantes, Implants research, Insertion, International journal, Lekholm, Longitudinal study, Marginal bone changes, Marginal bone level, Marginal bone level changes, Marginal bone levels, Maxillofacial, Oral impl, Plaque accumulation, Present study, Radiographic, Reference point, Resorption, Steady state, Survival rate, System implants, Tech, Xture, Xture insertion, Xture installation, Zwischen.
- Teeft :
- Abutment, Abutment connection, Astra, Astra tech, Astra tech implants, Baseline, Baseline examination, Bone level, Bone level changes, Bone loss, Clin, Edentulous, Engquist, Entre, Impl, Implant, Implant losses, Implant systems, Implantes, Implants research, Insertion, International journal, Lekholm, Longitudinal study, Marginal bone changes, Marginal bone level, Marginal bone level changes, Marginal bone levels, Maxillofacial, Oral impl, Plaque accumulation, Present study, Radiographic, Reference point, Resorption, Steady state, Survival rate, System implants, Tech, Xture, Xture insertion, Xture installation, Zwischen.
Abstract
Abstract: In earlier studies of Astra Tech and Brånemark System implants, high survival rates and small marginal bone changes have been demonstrated. The aim of this study was to compare the two systems, primarily with regard to marginal bone changes, but also with regard to other clinical variables of interest. The present paper describes the results after three years. Sixty‐six patients were included in the study and randomly assigned to treatment with Astra Tech implants (n=184) or Brånemark System implants (n=187). The marginal bone level was radiographically examined at fixture insertion, at abutment connection, at baseline (delivery of the prosthetic construction) and at 1‐ and 3‐year follow‐up examinations. Between fixture insertion and the baseline examination, the pattern of marginal bone resorption differed between the two systems. However, there was no significant marginal bone change between baseline and the 1‐year examination or between the 1‐ and 3‐year examinations. Nor were there any differences between the systems. The mean bone loss in the upper jaw between BL (baseline) and 3 years was 0.2±0.3 mm for Astra Tech implants and 0.2±0.1 mm for Brånemark System implants. The corresponding figures for the lower jaw were 0.3±0.2 mm and 0.2±0.1 mm. The survival rate of Astra Tech implants was significantly higher (98.9%) than for Brånemark System implants (95.2%). However, five of the nine implant losses in the Brånemark group occurred in one patient. For that reason, this result must be interpreted with caution. The number of patients with implant losses did not differ significantly between the systems. Few complications were recorded up to 3 years.
Url:
DOI: 10.1034/j.1600-0501.2002.130103.x
Affiliations:
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implants</term><term>Baseline</term><term>Baseline examination</term><term>Bone level</term><term>Bone level changes</term><term>Bone loss</term><term>Clin</term><term>Edentulous</term><term>Engquist</term><term>Entre</term><term>Impl</term><term>Implant</term><term>Implant losses</term><term>Implant systems</term><term>Implantes</term><term>Implants research</term><term>Insertion</term><term>International journal</term><term>Lekholm</term><term>Longitudinal study</term><term>Marginal bone changes</term><term>Marginal bone level</term><term>Marginal bone level changes</term><term>Marginal bone levels</term><term>Maxillofacial</term><term>Oral impl</term><term>Plaque accumulation</term><term>Present study</term><term>Radiographic</term><term>Reference point</term><term>Resorption</term><term>Steady state</term><term>Survival rate</term><term>System implants</term><term>Tech</term><term>Xture</term><term>Xture insertion</term><term>Xture installation</term><term>Zwischen</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Abutment</term><term>Abutment connection</term><term>Astra</term><term>Astra tech</term><term>Astra tech implants</term><term>Baseline</term><term>Baseline examination</term><term>Bone level</term><term>Bone level changes</term><term>Bone loss</term><term>Clin</term><term>Edentulous</term><term>Engquist</term><term>Entre</term><term>Impl</term><term>Implant</term><term>Implant losses</term><term>Implant systems</term><term>Implantes</term><term>Implants research</term><term>Insertion</term><term>International journal</term><term>Lekholm</term><term>Longitudinal study</term><term>Marginal bone changes</term><term>Marginal bone level</term><term>Marginal bone level changes</term><term>Marginal bone levels</term><term>Maxillofacial</term><term>Oral impl</term><term>Plaque accumulation</term><term>Present study</term><term>Radiographic</term><term>Reference point</term><term>Resorption</term><term>Steady state</term><term>Survival rate</term><term>System implants</term><term>Tech</term><term>Xture</term><term>Xture insertion</term><term>Xture installation</term><term>Zwischen</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract">Abstract: In earlier studies of Astra Tech and Brånemark System implants, high survival rates and small marginal bone changes have been demonstrated. The aim of this study was to compare the two systems, primarily with regard to marginal bone changes, but also with regard to other clinical variables of interest. The present paper describes the results after three years. Sixty‐six patients were included in the study and randomly assigned to treatment with Astra Tech implants (n=184) or Brånemark System implants (n=187). The marginal bone level was radiographically examined at fixture insertion, at abutment connection, at baseline (delivery of the prosthetic construction) and at 1‐ and 3‐year follow‐up examinations. Between fixture insertion and the baseline examination, the pattern of marginal bone resorption differed between the two systems. However, there was no significant marginal bone change between baseline and the 1‐year examination or between the 1‐ and 3‐year examinations. Nor were there any differences between the systems. The mean bone loss in the upper jaw between BL (baseline) and 3 years was 0.2±0.3 mm for Astra Tech implants and 0.2±0.1 mm for Brånemark System implants. The corresponding figures for the lower jaw were 0.3±0.2 mm and 0.2±0.1 mm. The survival rate of Astra Tech implants was significantly higher (98.9%) than for Brånemark System implants (95.2%). However, five of the nine implant losses in the Brånemark group occurred in one patient. For that reason, this result must be interpreted with caution. The number of patients with implant losses did not differ significantly between the systems. Few complications were recorded up to 3 years.</div></front></TEI><affiliations><list><country><li>Suède</li></country><region><li>Götaland</li><li>Suède occidentale</li></region><settlement><li>Göteborg</li></settlement><orgName><li>Université de Göteborg</li></orgName></list><tree><noCountry><name sortKey="Dahlgren, Simon" sort="Dahlgren, Simon" uniqKey="Dahlgren S" first="Simon" last="Dahlgren">Simon Dahlgren</name><name sortKey="Engquist, Bo" sort="Engquist, Bo" uniqKey="Engquist B" first="Bo" last="Engquist">Bo Engquist</name><name sortKey="Engquist, Eva" sort="Engquist, Eva" uniqKey="Engquist E" first="Eva" last="Engquist">Eva Engquist</name><name sortKey="Feldmann, Hartmut" sort="Feldmann, Hartmut" uniqKey="Feldmann H" first="Hartmut" last="Feldmann">Hartmut Feldmann</name></noCountry><country name="Suède"><noRegion><name sortKey=" Strand, Per" sort=" Strand, Per" uniqKey=" Strand P" first="Per" last=" Strand">Per Strand</name></noRegion><name sortKey="Grondahl, Kerstin" sort="Grondahl, Kerstin" uniqKey="Grondahl K" first="Kerstin" last="Gröndahl">Kerstin Gröndahl</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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