A three-dimensional, finite-element analysis of bone around dental implants in an edentulous human mandible.
Identifieur interne : 004600 ( PubMed/Corpus ); précédent : 004599; suivant : 004601A three-dimensional, finite-element analysis of bone around dental implants in an edentulous human mandible.
Auteurs : H J Meijer ; F J Starmans ; W H Steen ; F. BosmanSource :
- Archives of oral biology [ 0003-9969 ] ; 1993.
English descriptors
- KwdEn :
- MESH :
- chemical : Dental Implants.
- methods : Dental Stress Analysis.
- physiopathology : Jaw, Edentulous.
- Bite Force, Humans, Mandible, Models, Anatomic.
Abstract
The design of dental superstructures influences the loading on dental implants and the deformation of the anterior interforaminal bone in an edentulous mandible. This deformation causes stress in the bone around the implants and may lead to bone resorption and loss of the implant. The stress distribution around dental implants in an edentulous mandible was calculated by means of a three-dimensional, finite-element model of an entire lower jaw. This model was built from data obtained from slices of a single human mandible and was provided with two endosseous implants in the interforaminal region. The implants were either connected with a bar or remained solitary, and were loaded with a horizontal bite force of 10 N, a vertical bite force of 35 N, or an oblique bite force of 70 N. The most extreme principal stresses in the bone were always located around the neck of the implant. Stress around the implant was, therefore, not only caused by the local deformation of the bone due to movement of the implant and interface relative to the surrounding bone but also by the bending of the mandible. The most extreme principal stress was found with oblique bite forces. The highest maximum and lowest minimum principal stresses were 7.4 and -16.2 MPa in the model without the bar and 6.5 and -16.5 MPa in the model with the bar. When differences in the amount of bite force were eliminated, the vertical bite force resulted in the lowest stress.(ABSTRACT TRUNCATED AT 250 WORDS)
PubMed: 8343071
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Bosman</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1993">1993</date><idno type="RBID">pubmed:8343071</idno><idno type="pmid">8343071</idno><idno type="wicri:Area/PubMed/Corpus">004600</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">004600</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">A three-dimensional, finite-element analysis of bone around dental implants in an edentulous human mandible.</title><author><name sortKey="Meijer, H J" sort="Meijer, H J" uniqKey="Meijer H" first="H J" last="Meijer">H J Meijer</name><affiliation><nlm:affiliation>Department of Oral-Maxillofacial Surgery, Prosthodontics and Special Dental Care, University of Utrecht, The Netherlands.</nlm:affiliation></affiliation></author><author><name sortKey="Starmans, F J" sort="Starmans, F J" uniqKey="Starmans F" first="F J" last="Starmans">F J Starmans</name></author><author><name sortKey="Steen, W H" sort="Steen, W H" uniqKey="Steen W" first="W H" last="Steen">W H Steen</name></author><author><name sortKey="Bosman, F" sort="Bosman, F" uniqKey="Bosman F" first="F" last="Bosman">F. Bosman</name></author></analytic><series><title level="j">Archives of oral biology</title><idno type="ISSN">0003-9969</idno><imprint><date when="1993" type="published">1993</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bite Force</term><term>Dental Implants</term><term>Dental Stress Analysis (methods)</term><term>Humans</term><term>Jaw, Edentulous (physiopathology)</term><term>Mandible</term><term>Models, Anatomic</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Dental Implants</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Dental Stress Analysis</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Jaw, Edentulous</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Bite Force</term><term>Humans</term><term>Mandible</term><term>Models, Anatomic</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The design of dental superstructures influences the loading on dental implants and the deformation of the anterior interforaminal bone in an edentulous mandible. This deformation causes stress in the bone around the implants and may lead to bone resorption and loss of the implant. The stress distribution around dental implants in an edentulous mandible was calculated by means of a three-dimensional, finite-element model of an entire lower jaw. This model was built from data obtained from slices of a single human mandible and was provided with two endosseous implants in the interforaminal region. The implants were either connected with a bar or remained solitary, and were loaded with a horizontal bite force of 10 N, a vertical bite force of 35 N, or an oblique bite force of 70 N. The most extreme principal stresses in the bone were always located around the neck of the implant. Stress around the implant was, therefore, not only caused by the local deformation of the bone due to movement of the implant and interface relative to the surrounding bone but also by the bending of the mandible. The most extreme principal stress was found with oblique bite forces. The highest maximum and lowest minimum principal stresses were 7.4 and -16.2 MPa in the model without the bar and 6.5 and -16.5 MPa in the model with the bar. When differences in the amount of bite force were eliminated, the vertical bite force resulted in the lowest stress.(ABSTRACT TRUNCATED AT 250 WORDS)</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">8343071</PMID><DateCompleted><Year>1993</Year><Month>08</Month><Day>31</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0003-9969</ISSN><JournalIssue CitedMedium="Print"><Volume>38</Volume><Issue>6</Issue><PubDate><Year>1993</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Archives of oral biology</Title><ISOAbbreviation>Arch. Oral Biol.</ISOAbbreviation></Journal><ArticleTitle>A three-dimensional, finite-element analysis of bone around dental implants in an edentulous human mandible.</ArticleTitle><Pagination><MedlinePgn>491-6</MedlinePgn></Pagination><Abstract><AbstractText>The design of dental superstructures influences the loading on dental implants and the deformation of the anterior interforaminal bone in an edentulous mandible. This deformation causes stress in the bone around the implants and may lead to bone resorption and loss of the implant. The stress distribution around dental implants in an edentulous mandible was calculated by means of a three-dimensional, finite-element model of an entire lower jaw. This model was built from data obtained from slices of a single human mandible and was provided with two endosseous implants in the interforaminal region. The implants were either connected with a bar or remained solitary, and were loaded with a horizontal bite force of 10 N, a vertical bite force of 35 N, or an oblique bite force of 70 N. The most extreme principal stresses in the bone were always located around the neck of the implant. Stress around the implant was, therefore, not only caused by the local deformation of the bone due to movement of the implant and interface relative to the surrounding bone but also by the bending of the mandible. The most extreme principal stress was found with oblique bite forces. The highest maximum and lowest minimum principal stresses were 7.4 and -16.2 MPa in the model without the bar and 6.5 and -16.5 MPa in the model with the bar. 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