Implant and root supported overdentures - a literature review and some data on bone loss in edentulous jaws
Identifieur interne : 000276 ( Pmc/Checkpoint ); précédent : 000275; suivant : 000277Implant and root supported overdentures - a literature review and some data on bone loss in edentulous jaws
Auteurs : Gunnar E. Carlsson [Suède]Source :
- The Journal of Advanced Prosthodontics [ 2005-7806 ] ; 2014.
Abstract
To present a literature review on implant overdentures after a brief survey of bone loss after extraction of all teeth.
Papers on alveolar bone loss and implant overdentures have been studied for a narrative review.
Bone loss of the alveolar process after tooth extraction occurs with great individual variation, impossible to predict at the time of extraction. The simplest way to prevent bone loss is to avoid extraction of all teeth. To keep a few teeth and use them or their roots for a tooth or root-supported overdenture substantially reduces bone loss. Jaws with implant-supported prostheses show less bone loss than jaws with conventional dentures. Mandibular 2-implant overdentures provide patients with better outcomes than do conventional dentures, regarding satisfaction, chewing ability and oral-health-related quality of life. There is no strong evidence for the superiority of one overdenture retention-system over the others regarding patient satisfaction, survival, peri-implant bone loss and relevant clinical factors. Mandibular single midline implant overdentures have shown promising results but long-term results are not yet available. For a maxillary overdenture 4 to 6 implants splinted with a bar provide high survival both for implants and overdenture.
In edentulous mandibles, 2-implant overdentures provide excellent long-term success and survival, including patient satisfaction and improved oral functions. To further reduce the costs a single midline implant overdenture can be a promising option. In the maxilla, overdentures supported on 4 to 6 implants splinted with a bar have demonstrated good functional results.
Url:
DOI: 10.4047/jap.2014.6.4.245
PubMed: 25177466
PubMed Central: 4146723
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Implant and root supported overdentures - a literature review and some data on bone loss in edentulous jaws</title><author><name sortKey="Carlsson, Gunnar E" sort="Carlsson, Gunnar E" uniqKey="Carlsson G" first="Gunnar E" last="Carlsson">Gunnar E. Carlsson</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthetic Dentistry/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Sweden.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Suède</country><wicri:regionArea>Department of Prosthetic Dentistry/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg</wicri:regionArea><wicri:noRegion>University of Gothenburg</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">25177466</idno><idno type="pmc">4146723</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4146723</idno><idno type="RBID">PMC:4146723</idno><idno type="doi">10.4047/jap.2014.6.4.245</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">000817</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000817</idno><idno type="wicri:Area/Pmc/Curation">000817</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000817</idno><idno type="wicri:Area/Pmc/Checkpoint">000276</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000276</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Implant and root supported overdentures - a literature review and some data on bone loss in edentulous jaws</title><author><name sortKey="Carlsson, Gunnar E" sort="Carlsson, Gunnar E" uniqKey="Carlsson G" first="Gunnar E" last="Carlsson">Gunnar E. Carlsson</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthetic Dentistry/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Sweden.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Suède</country><wicri:regionArea>Department of Prosthetic Dentistry/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg</wicri:regionArea><wicri:noRegion>University of Gothenburg</wicri:noRegion></affiliation></author></analytic><series><title level="j">The Journal of Advanced Prosthodontics</title><idno type="ISSN">2005-7806</idno><idno type="eISSN">2005-7814</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>PURPOSE</title><p>To present a literature review on implant overdentures after a brief survey of bone loss after extraction of all teeth.</p></sec><sec><title>MATERIALS AND METHODS</title><p>Papers on alveolar bone loss and implant overdentures have been studied for a narrative review.</p></sec><sec><title>RESULTS</title><p>Bone loss of the alveolar process after tooth extraction occurs with great individual variation, impossible to predict at the time of extraction. The simplest way to prevent bone loss is to avoid extraction of all teeth. To keep a few teeth and use them or their roots for a tooth or root-supported overdenture substantially reduces bone loss. Jaws with implant-supported prostheses show less bone loss than jaws with conventional dentures. Mandibular 2-implant overdentures provide patients with better outcomes than do conventional dentures, regarding satisfaction, chewing ability and oral-health-related quality of life. There is no strong evidence for the superiority of one overdenture retention-system over the others regarding patient satisfaction, survival, peri-implant bone loss and relevant clinical factors. Mandibular single midline implant overdentures have shown promising results but long-term results are not yet available. For a maxillary overdenture 4 to 6 implants splinted with a bar provide high survival both for implants and overdenture.</p></sec><sec><title>CONCLUSION</title><p>In edentulous mandibles, 2-implant overdentures provide excellent long-term success and survival, including patient satisfaction and improved oral functions. To further reduce the costs a single midline implant overdenture can be a promising option. In the maxilla, overdentures supported on 4 to 6 implants splinted with a bar have demonstrated good functional results.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Mojon, P" uniqKey="Mojon P">P Mojon</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Muller, F" uniqKey="Muller F">F Müller</name></author><author><name sortKey="Naharro, M" uniqKey="Naharro M">M Naharro</name></author><author><name sortKey="Carlsson, Ge" uniqKey="Carlsson G">GE Carlsson</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Osterberg, T" uniqKey="Osterberg T">T Österberg</name></author><author><name sortKey="Dey, Dk" uniqKey="Dey D">DK Dey</name></author><author><name sortKey="Sundh, V" uniqKey="Sundh V">V Sundh</name></author><author><name sortKey="Carlsson, Ge" uniqKey="Carlsson G">GE Carlsson</name></author><author><name sortKey="Jansson, Jo" uniqKey="Jansson J">JO 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<front><journal-meta><journal-id journal-id-type="nlm-ta">J Adv Prosthodont</journal-id><journal-id journal-id-type="iso-abbrev">J Adv Prosthodont</journal-id><journal-id journal-id-type="publisher-id">JAP</journal-id><journal-title-group><journal-title>The Journal of Advanced Prosthodontics</journal-title></journal-title-group><issn pub-type="ppub">2005-7806</issn><issn pub-type="epub">2005-7814</issn><publisher><publisher-name>The Korean Academy of Prosthodontics</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">25177466</article-id><article-id pub-id-type="pmc">4146723</article-id><article-id pub-id-type="doi">10.4047/jap.2014.6.4.245</article-id><article-categories><subj-group subj-group-type="heading"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title>Implant and root supported overdentures - a literature review and some data on bone loss in edentulous jaws</article-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name><surname>Carlsson</surname><given-names>Gunnar E</given-names></name><xref ref-type="aff" rid="A1"></xref></contrib></contrib-group><aff id="A1">Department of Prosthetic Dentistry/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Sweden.</aff><author-notes><corresp>Corresponding author: Gunnar E Carlsson. Department of Prosthetic Dentistry/Dental Materials Science Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Box 450, SE 405 30 Göteborg, Sweden. Tel. 46 31 786 3191: <email>g.carlsson@odontologi.gu.se</email></corresp></author-notes><pub-date pub-type="ppub"><month>8</month><year>2014</year></pub-date><pub-date pub-type="epub"><day>14</day><month>8</month><year>2014</year></pub-date><volume>6</volume><issue>4</issue><fpage>245</fpage><lpage>252</lpage><history><date date-type="received"><day>28</day><month>7</month><year>2014</year></date><date date-type="rev-recd"><day>05</day><month>8</month><year>2014</year></date><date date-type="accepted"><day>08</day><month>8</month><year>2014</year></date></history><permissions><copyright-statement>© 2014 The Korean Academy of Prosthodontics</copyright-statement><copyright-year>2014</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/">http://creativecommons.org/licenses/by-nc/3.0/</ext-link>) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><sec><title>PURPOSE</title><p>To present a literature review on implant overdentures after a brief survey of bone loss after extraction of all teeth.</p></sec><sec><title>MATERIALS AND METHODS</title><p>Papers on alveolar bone loss and implant overdentures have been studied for a narrative review.</p></sec><sec><title>RESULTS</title><p>Bone loss of the alveolar process after tooth extraction occurs with great individual variation, impossible to predict at the time of extraction. The simplest way to prevent bone loss is to avoid extraction of all teeth. To keep a few teeth and use them or their roots for a tooth or root-supported overdenture substantially reduces bone loss. Jaws with implant-supported prostheses show less bone loss than jaws with conventional dentures. Mandibular 2-implant overdentures provide patients with better outcomes than do conventional dentures, regarding satisfaction, chewing ability and oral-health-related quality of life. There is no strong evidence for the superiority of one overdenture retention-system over the others regarding patient satisfaction, survival, peri-implant bone loss and relevant clinical factors. Mandibular single midline implant overdentures have shown promising results but long-term results are not yet available. For a maxillary overdenture 4 to 6 implants splinted with a bar provide high survival both for implants and overdenture.</p></sec><sec><title>CONCLUSION</title><p>In edentulous mandibles, 2-implant overdentures provide excellent long-term success and survival, including patient satisfaction and improved oral functions. To further reduce the costs a single midline implant overdenture can be a promising option. In the maxilla, overdentures supported on 4 to 6 implants splinted with a bar have demonstrated good functional results.</p></sec></abstract><kwd-group><kwd>Ball attachment</kwd><kwd>Early loading</kwd><kwd>Mandibular 2-implant overdenture</kwd><kwd>Maxillary implant overdenture</kwd><kwd>Single midline implant</kwd></kwd-group></article-meta></front><floats-group><fig id="F1" orientation="portrait" position="float"><label>Fig. 1</label><caption><p>Tracings from profile radiographs of mandibular symphyseal region of 12 subjects 2 days, 5 years and 21 years after extraction of all teeth in the mandible (with permission from J Prosthet Dent<xref rid="B15" ref-type="bibr">15</xref>).</p></caption><graphic xlink:href="jap-6-245-g001"></graphic></fig><fig id="F2" orientation="portrait" position="float"><label>Fig. 2</label><caption><p>Comparison of bone loss in a patient with a root-supported overdenture (A) and a conventional complete denture (B) 5 years after extraction of teeth and insertion of dentures (with permission from J Prosthet Dent<xref rid="B21" ref-type="bibr">21</xref>).</p></caption><graphic xlink:href="jap-6-245-g002"></graphic></fig><fig id="F3" orientation="portrait" position="float"><label>Fig. 3</label><caption><p>(A) Single implant with a ball attachment in an edentulous mandible to retain an overdenture. (B) The inner surface of the mandibular overdenture with retainer for the ball attachment (with permission from Int J Oral Maxillofac Implants<xref rid="B41" ref-type="bibr">41</xref>).</p></caption><graphic xlink:href="jap-6-245-g003"></graphic></fig><fig id="F4" orientation="portrait" position="float"><label>Fig. 4</label><caption><p>(A) Four implants in an edentulous maxilla splinted with a bar for an overdenture. (B) The inner surface of the maxillary overdenture showing the bar retainers fixed in the denture base material (with permission from Quintessence<xref rid="B13" ref-type="bibr">13</xref>).</p></caption><graphic xlink:href="jap-6-245-g004"></graphic></fig><fig id="F5" orientation="portrait" position="float"><label>Fig. 5</label><caption><p>Distribution of the use of implant overdentures (IODs) and fixed implant-supported prostheses (FISPs) for implant treatment of edentulous mandibles in 10 countries (with permission from Int J Prosthodont<xref rid="B12" ref-type="bibr">12</xref>).</p></caption><graphic xlink:href="jap-6-245-g005"></graphic></fig><table-wrap id="T1" orientation="portrait" position="float"><label>Table 1</label><caption><p>Factors of possible importance for bone loss in residual ridges</p></caption><graphic xlink:href="jap-6-245-i001"></graphic></table-wrap><table-wrap id="T2" orientation="portrait" position="float"><label>Table 2</label><caption><p>Ways to prevent or reduce bone loss of residual ridges</p></caption><graphic xlink:href="jap-6-245-i002"></graphic></table-wrap></floats-group></pmc><affiliations><list><country><li>Suède</li></country></list><tree><country name="Suède"><noRegion><name sortKey="Carlsson, Gunnar E" sort="Carlsson, Gunnar E" uniqKey="Carlsson G" first="Gunnar E" last="Carlsson">Gunnar E. 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