Implant stability and histomorphometry: a correlation study in human cadavers using stepped cylinder implants.
Identifieur interne : 002E19 ( PubMed/Corpus ); précédent : 002E18; suivant : 002E20Implant stability and histomorphometry: a correlation study in human cadavers using stepped cylinder implants.
Auteurs : Emeka Nkenke ; Michael Hahn ; Konstanze Weinzierl ; Martin Radespiel-Tröger ; Friedrich Wilhelm Neukam ; Klaus EngelkeSource :
- Clinical oral implants research [ 0905-7161 ] ; 2003.
English descriptors
- KwdEn :
- Aged, Aged, 80 and over, Analysis of Variance, Bone Density, Dental Implantation, Endosseous, Dental Implants, Dental Prosthesis Retention, Dental Restoration Failure, Humans, Jaw, Edentulous (diagnostic imaging), Linear Models, Male, Mandible, Maxilla, Tomography, X-Ray Computed, Torque, Vibration.
- MESH :
- chemical : Dental Implants.
- diagnostic imaging : Jaw, Edentulous.
- Aged, Aged, 80 and over, Analysis of Variance, Bone Density, Dental Implantation, Endosseous, Dental Prosthesis Retention, Dental Restoration Failure, Humans, Linear Models, Male, Mandible, Maxilla, Tomography, X-Ray Computed, Torque, Vibration.
Abstract
The aim of the present study was to determine the correlation between the primary stability of dental implants placed in edentulous maxillae and mandibles, the bone mineral density and different histomorphometric parameters. After assessing the bone mineral density of the implant sites by computed tomography, 48 stepped cylinder screw implants were installed in four unfixed human maxillae and mandibles of recently deceased people who had bequeathed their bodies to the Anatomic Institute I of the University of Erlangen-Nuremberg for medical-scientific research. Peak insertion torque, Periotest values and resonance frequency analysis were assessed. Subsequently, histologic specimens were prepared, and bone-to-implant contact, the trabecular bone pattern factor (TBPf), the density of trabecular bone (BV/TV) and the height of the cortical passage of the implants were determined. The correlation between the different parameters was calculated statistically. The mean resonance frequency analysis values (maxilla 6130.4+/-363.2 Hz, mandible 6424.5+/-236.2 Hz) did not correlate with the Periotest measurements (maxilla 13.1+/-7.2, mandible -7.9+/-2.1) and peak insertion torque values (maxilla 23.8+/-2.2 N cm, mandible 45.0+/-7.9 N cm) (P=0.280 and 0.193, respectively). Again, no correlations could be found between the resonance frequency analysis, the bone mineral density (maxilla 259.2+/-124.8 mg/cm(3), mandible 349.8+/-113.3 mg/cm3), BV/TV (maxilla 19.7+/-8.8%, mandible 34.3+/-6.0%) and the TBPf (maxilla 2.39+/-1.46 mm-1, mandible -0.84+/-3.27 mm-1) (P=0.140 and 0.602, respectively). However, the resonance frequency analysis values did correlate with bone-to-implant contact of the oral aspect of the specimens (maxilla 12.6+/-6.0%, mandible 35.1+/-5.1%) and with the height of the crestal cortical bone penetrated by the implants in the oral aspect of the implant sites (maxilla 2.1+/-0.7 mm, mandible 5.1+/-3.7 mm) (P=0.024 and 0.002, respectively). The Periotest values showed a correlation with the height of the crestal cortical bone penetrated by the implants in the buccal aspect of the implant sites (maxilla 2.5+/-1.2 mm, mandible 5.4+/-1.2 mm) (P=0.015). The resonance frequency analysis revealed more correlations to the histomorphometric parameters than the Periotest measurements. However, it seems that the noninvasive determination of implant stability has to be improved in order to give a more comprehensive prediction of the bone characteristics of the implant site.
PubMed: 12969364
Links to Exploration step
pubmed:12969364Le document en format XML
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<author><name sortKey="Nkenke, Emeka" sort="Nkenke, Emeka" uniqKey="Nkenke E" first="Emeka" last="Nkenke">Emeka Nkenke</name>
<affiliation><nlm:affiliation>Department of Oral and Maxillofacial Surgery, University of Erlangen-Nuremberg, Germany. emeka.nkenke@mkg.imed.uni-erlangen.de</nlm:affiliation>
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<author><name sortKey="Hahn, Michael" sort="Hahn, Michael" uniqKey="Hahn M" first="Michael" last="Hahn">Michael Hahn</name>
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<author><name sortKey="Weinzierl, Konstanze" sort="Weinzierl, Konstanze" uniqKey="Weinzierl K" first="Konstanze" last="Weinzierl">Konstanze Weinzierl</name>
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<author><name sortKey="Radespiel Troger, Martin" sort="Radespiel Troger, Martin" uniqKey="Radespiel Troger M" first="Martin" last="Radespiel-Tröger">Martin Radespiel-Tröger</name>
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<author><name sortKey="Neukam, Friedrich Wilhelm" sort="Neukam, Friedrich Wilhelm" uniqKey="Neukam F" first="Friedrich Wilhelm" last="Neukam">Friedrich Wilhelm Neukam</name>
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<author><name sortKey="Engelke, Klaus" sort="Engelke, Klaus" uniqKey="Engelke K" first="Klaus" last="Engelke">Klaus Engelke</name>
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<author><name sortKey="Radespiel Troger, Martin" sort="Radespiel Troger, Martin" uniqKey="Radespiel Troger M" first="Martin" last="Radespiel-Tröger">Martin Radespiel-Tröger</name>
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<term>Dental Implantation, Endosseous</term>
<term>Dental Implants</term>
<term>Dental Prosthesis Retention</term>
<term>Dental Restoration Failure</term>
<term>Humans</term>
<term>Jaw, Edentulous (diagnostic imaging)</term>
<term>Linear Models</term>
<term>Male</term>
<term>Mandible</term>
<term>Maxilla</term>
<term>Tomography, X-Ray Computed</term>
<term>Torque</term>
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<term>Aged, 80 and over</term>
<term>Analysis of Variance</term>
<term>Bone Density</term>
<term>Dental Implantation, Endosseous</term>
<term>Dental Prosthesis Retention</term>
<term>Dental Restoration Failure</term>
<term>Humans</term>
<term>Linear Models</term>
<term>Male</term>
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<front><div type="abstract" xml:lang="en">The aim of the present study was to determine the correlation between the primary stability of dental implants placed in edentulous maxillae and mandibles, the bone mineral density and different histomorphometric parameters. After assessing the bone mineral density of the implant sites by computed tomography, 48 stepped cylinder screw implants were installed in four unfixed human maxillae and mandibles of recently deceased people who had bequeathed their bodies to the Anatomic Institute I of the University of Erlangen-Nuremberg for medical-scientific research. Peak insertion torque, Periotest values and resonance frequency analysis were assessed. Subsequently, histologic specimens were prepared, and bone-to-implant contact, the trabecular bone pattern factor (TBPf), the density of trabecular bone (BV/TV) and the height of the cortical passage of the implants were determined. The correlation between the different parameters was calculated statistically. The mean resonance frequency analysis values (maxilla 6130.4+/-363.2 Hz, mandible 6424.5+/-236.2 Hz) did not correlate with the Periotest measurements (maxilla 13.1+/-7.2, mandible -7.9+/-2.1) and peak insertion torque values (maxilla 23.8+/-2.2 N cm, mandible 45.0+/-7.9 N cm) (P=0.280 and 0.193, respectively). Again, no correlations could be found between the resonance frequency analysis, the bone mineral density (maxilla 259.2+/-124.8 mg/cm(3), mandible 349.8+/-113.3 mg/cm3), BV/TV (maxilla 19.7+/-8.8%, mandible 34.3+/-6.0%) and the TBPf (maxilla 2.39+/-1.46 mm-1, mandible -0.84+/-3.27 mm-1) (P=0.140 and 0.602, respectively). However, the resonance frequency analysis values did correlate with bone-to-implant contact of the oral aspect of the specimens (maxilla 12.6+/-6.0%, mandible 35.1+/-5.1%) and with the height of the crestal cortical bone penetrated by the implants in the oral aspect of the implant sites (maxilla 2.1+/-0.7 mm, mandible 5.1+/-3.7 mm) (P=0.024 and 0.002, respectively). The Periotest values showed a correlation with the height of the crestal cortical bone penetrated by the implants in the buccal aspect of the implant sites (maxilla 2.5+/-1.2 mm, mandible 5.4+/-1.2 mm) (P=0.015). The resonance frequency analysis revealed more correlations to the histomorphometric parameters than the Periotest measurements. However, it seems that the noninvasive determination of implant stability has to be improved in order to give a more comprehensive prediction of the bone characteristics of the implant site.</div>
</front>
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<Abstract><AbstractText>The aim of the present study was to determine the correlation between the primary stability of dental implants placed in edentulous maxillae and mandibles, the bone mineral density and different histomorphometric parameters. After assessing the bone mineral density of the implant sites by computed tomography, 48 stepped cylinder screw implants were installed in four unfixed human maxillae and mandibles of recently deceased people who had bequeathed their bodies to the Anatomic Institute I of the University of Erlangen-Nuremberg for medical-scientific research. Peak insertion torque, Periotest values and resonance frequency analysis were assessed. Subsequently, histologic specimens were prepared, and bone-to-implant contact, the trabecular bone pattern factor (TBPf), the density of trabecular bone (BV/TV) and the height of the cortical passage of the implants were determined. The correlation between the different parameters was calculated statistically. The mean resonance frequency analysis values (maxilla 6130.4+/-363.2 Hz, mandible 6424.5+/-236.2 Hz) did not correlate with the Periotest measurements (maxilla 13.1+/-7.2, mandible -7.9+/-2.1) and peak insertion torque values (maxilla 23.8+/-2.2 N cm, mandible 45.0+/-7.9 N cm) (P=0.280 and 0.193, respectively). Again, no correlations could be found between the resonance frequency analysis, the bone mineral density (maxilla 259.2+/-124.8 mg/cm(3), mandible 349.8+/-113.3 mg/cm3), BV/TV (maxilla 19.7+/-8.8%, mandible 34.3+/-6.0%) and the TBPf (maxilla 2.39+/-1.46 mm-1, mandible -0.84+/-3.27 mm-1) (P=0.140 and 0.602, respectively). However, the resonance frequency analysis values did correlate with bone-to-implant contact of the oral aspect of the specimens (maxilla 12.6+/-6.0%, mandible 35.1+/-5.1%) and with the height of the crestal cortical bone penetrated by the implants in the oral aspect of the implant sites (maxilla 2.1+/-0.7 mm, mandible 5.1+/-3.7 mm) (P=0.024 and 0.002, respectively). The Periotest values showed a correlation with the height of the crestal cortical bone penetrated by the implants in the buccal aspect of the implant sites (maxilla 2.5+/-1.2 mm, mandible 5.4+/-1.2 mm) (P=0.015). The resonance frequency analysis revealed more correlations to the histomorphometric parameters than the Periotest measurements. However, it seems that the noninvasive determination of implant stability has to be improved in order to give a more comprehensive prediction of the bone characteristics of the implant site.</AbstractText>
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