Three‐dimensional force measurements on oral implants: a methodological study
Identifieur interne : 008D50 ( Main/Exploration ); précédent : 008D49; suivant : 008D51Three‐dimensional force measurements on oral implants: a methodological study
Auteurs : J. Duyck ; H. Van Oosterwyck ; M. De Cooman [Belgique] ; R. Puers [Belgique] ; J. Vander Sloten ; I. NaertSource :
- Journal of Oral Rehabilitation [ 0305-182X ] ; 2000-09.
English descriptors
- KwdEn :
- Abutment, Accuracy level, Axial, Axial force, Axial forces, Axial loading, Axial loads, Biomat research group, Blackwell science, Branemark system, Calibration factors, Compressive forces, Computer program, Consecutively, Current techniques, Different abutments, Distal implants, Distal parts, Exact curve, Force measurements, Full denture, Full prosthesis, Glantz, Graphical plotter, Gravitational acceleration, Implant, Implant research, Implant system, Instrumented abutments, International journal, Load magnitude, Loading conditions, Maxillofacial implants, Maximal, Maximal error, Mechanical device, Mesial implants, Methodological study, Naert, Normal force, Numerical representation, Oral implants, Oral rehabilitation, Osseointegrated, Osseointegrated implants, Output voltage, Partial edentulism, Peak forces, Perpendicular axes, Prosthesis, Prosthetic, Prosthetic dentistry, Resistance values, Sensitivity factors, Strain gauge, Strain gauge accuracy, Strain gauge technique, Strain gauge technology, Tests test number abutment, Theoretical accuracy, Vander sloten, Vector summation, Vivo research, Wheatstone bridge.
- Teeft :
- Abutment, Accuracy level, Axial, Axial force, Axial forces, Axial loading, Axial loads, Biomat research group, Blackwell science, Branemark system, Calibration factors, Compressive forces, Computer program, Consecutively, Current techniques, Different abutments, Distal implants, Distal parts, Exact curve, Force measurements, Full denture, Full prosthesis, Glantz, Graphical plotter, Gravitational acceleration, Implant, Implant research, Implant system, Instrumented abutments, International journal, Load magnitude, Loading conditions, Maxillofacial implants, Maximal, Maximal error, Mechanical device, Mesial implants, Methodological study, Naert, Normal force, Numerical representation, Oral implants, Oral rehabilitation, Osseointegrated, Osseointegrated implants, Output voltage, Partial edentulism, Peak forces, Perpendicular axes, Prosthesis, Prosthetic, Prosthetic dentistry, Resistance values, Sensitivity factors, Strain gauge, Strain gauge accuracy, Strain gauge technique, Strain gauge technology, Tests test number abutment, Theoretical accuracy, Vander sloten, Vector summation, Vivo research, Wheatstone bridge.
Abstract
This paper describes a methodology that allows in vitro and in vivo quantification and qualification of forces on oral implants. Strain gauges are adapted to the outer surface of 5·5 and 7 mm standard abutments (Brånemark System®, Nobel Biocare, Sweden). The readings of the strain gauges are transformed into a numerical representation of the normal force and the bending moment around the X‐ and Y‐axis. The hardware and the software of the 3D measuring device based on the strain gauge technology is explained and its accuracy and reliability tested. The accuracy level for axial forces and bending moments is 9.72 N and 2.5 N·cm, respectively, based on the current techniques for strain gauged abutments. As an example, an in vivo force analysis was performed in a patient with a full fixed prosthesis in the mandible. Since axial loads of 450 N and bending moments of 70 N·cm were recorded, it was concluded that the accuracy of the device falls well within the scope of our needs. Nevertheless, more in vivo research is needed before well defined conclusions can be drawn and strategies developed to improve the biomechanics of oral implants.
Url:
DOI: 10.1046/j.1365-2842.2000.00581.x
Affiliations:
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<term>Axial</term>
<term>Axial force</term>
<term>Axial forces</term>
<term>Axial loading</term>
<term>Axial loads</term>
<term>Biomat research group</term>
<term>Blackwell science</term>
<term>Branemark system</term>
<term>Calibration factors</term>
<term>Compressive forces</term>
<term>Computer program</term>
<term>Consecutively</term>
<term>Current techniques</term>
<term>Different abutments</term>
<term>Distal implants</term>
<term>Distal parts</term>
<term>Exact curve</term>
<term>Force measurements</term>
<term>Full denture</term>
<term>Full prosthesis</term>
<term>Glantz</term>
<term>Graphical plotter</term>
<term>Gravitational acceleration</term>
<term>Implant</term>
<term>Implant research</term>
<term>Implant system</term>
<term>Instrumented abutments</term>
<term>International journal</term>
<term>Load magnitude</term>
<term>Loading conditions</term>
<term>Maxillofacial implants</term>
<term>Maximal</term>
<term>Maximal error</term>
<term>Mechanical device</term>
<term>Mesial implants</term>
<term>Methodological study</term>
<term>Naert</term>
<term>Normal force</term>
<term>Numerical representation</term>
<term>Oral implants</term>
<term>Oral rehabilitation</term>
<term>Osseointegrated</term>
<term>Osseointegrated implants</term>
<term>Output voltage</term>
<term>Partial edentulism</term>
<term>Peak forces</term>
<term>Perpendicular axes</term>
<term>Prosthesis</term>
<term>Prosthetic</term>
<term>Prosthetic dentistry</term>
<term>Resistance values</term>
<term>Sensitivity factors</term>
<term>Strain gauge</term>
<term>Strain gauge accuracy</term>
<term>Strain gauge technique</term>
<term>Strain gauge technology</term>
<term>Tests test number abutment</term>
<term>Theoretical accuracy</term>
<term>Vander sloten</term>
<term>Vector summation</term>
<term>Vivo research</term>
<term>Wheatstone bridge</term>
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<term>Accuracy level</term>
<term>Axial</term>
<term>Axial force</term>
<term>Axial forces</term>
<term>Axial loading</term>
<term>Axial loads</term>
<term>Biomat research group</term>
<term>Blackwell science</term>
<term>Branemark system</term>
<term>Calibration factors</term>
<term>Compressive forces</term>
<term>Computer program</term>
<term>Consecutively</term>
<term>Current techniques</term>
<term>Different abutments</term>
<term>Distal implants</term>
<term>Distal parts</term>
<term>Exact curve</term>
<term>Force measurements</term>
<term>Full denture</term>
<term>Full prosthesis</term>
<term>Glantz</term>
<term>Graphical plotter</term>
<term>Gravitational acceleration</term>
<term>Implant</term>
<term>Implant research</term>
<term>Implant system</term>
<term>Instrumented abutments</term>
<term>International journal</term>
<term>Load magnitude</term>
<term>Loading conditions</term>
<term>Maxillofacial implants</term>
<term>Maximal</term>
<term>Maximal error</term>
<term>Mechanical device</term>
<term>Mesial implants</term>
<term>Methodological study</term>
<term>Naert</term>
<term>Normal force</term>
<term>Numerical representation</term>
<term>Oral implants</term>
<term>Oral rehabilitation</term>
<term>Osseointegrated</term>
<term>Osseointegrated implants</term>
<term>Output voltage</term>
<term>Partial edentulism</term>
<term>Peak forces</term>
<term>Perpendicular axes</term>
<term>Prosthesis</term>
<term>Prosthetic</term>
<term>Prosthetic dentistry</term>
<term>Resistance values</term>
<term>Sensitivity factors</term>
<term>Strain gauge</term>
<term>Strain gauge accuracy</term>
<term>Strain gauge technique</term>
<term>Strain gauge technology</term>
<term>Tests test number abutment</term>
<term>Theoretical accuracy</term>
<term>Vander sloten</term>
<term>Vector summation</term>
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<front><div type="abstract" xml:lang="en">This paper describes a methodology that allows in vitro and in vivo quantification and qualification of forces on oral implants. Strain gauges are adapted to the outer surface of 5·5 and 7 mm standard abutments (Brånemark System®, Nobel Biocare, Sweden). The readings of the strain gauges are transformed into a numerical representation of the normal force and the bending moment around the X‐ and Y‐axis. The hardware and the software of the 3D measuring device based on the strain gauge technology is explained and its accuracy and reliability tested. The accuracy level for axial forces and bending moments is 9.72 N and 2.5 N·cm, respectively, based on the current techniques for strain gauged abutments. As an example, an in vivo force analysis was performed in a patient with a full fixed prosthesis in the mandible. Since axial loads of 450 N and bending moments of 70 N·cm were recorded, it was concluded that the accuracy of the device falls well within the scope of our needs. Nevertheless, more in vivo research is needed before well defined conclusions can be drawn and strategies developed to improve the biomechanics of oral implants.</div>
</front>
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