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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Annual bone loss and success rates of dental implants based on radiographic measurements</title>
<author><name sortKey="Geraets, W" sort="Geraets, W" uniqKey="Geraets W" first="W" last="Geraets">W. Geraets</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Zhang, L" sort="Zhang, L" uniqKey="Zhang L" first="L" last="Zhang">L. Zhang</name>
<affiliation><nlm:aff id="aff2"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Liu, Y" sort="Liu, Y" uniqKey="Liu Y" first="Y" last="Liu">Y. Liu</name>
<affiliation><nlm:aff id="aff3"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Wismeijer, D" sort="Wismeijer, D" uniqKey="Wismeijer D" first="D" last="Wismeijer">D. Wismeijer</name>
<affiliation><nlm:aff id="aff3"></nlm:aff>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">25030551</idno>
<idno type="pmc">4170845</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4170845</idno>
<idno type="RBID">PMC:4170845</idno>
<idno type="doi">10.1259/dmfr.20140007</idno>
<date when="2014">2014</date>
<idno type="wicri:Area/Pmc/Corpus">002314</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002314</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Annual bone loss and success rates of dental implants based on radiographic measurements</title>
<author><name sortKey="Geraets, W" sort="Geraets, W" uniqKey="Geraets W" first="W" last="Geraets">W. Geraets</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Zhang, L" sort="Zhang, L" uniqKey="Zhang L" first="L" last="Zhang">L. Zhang</name>
<affiliation><nlm:aff id="aff2"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Liu, Y" sort="Liu, Y" uniqKey="Liu Y" first="Y" last="Liu">Y. Liu</name>
<affiliation><nlm:aff id="aff3"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Wismeijer, D" sort="Wismeijer, D" uniqKey="Wismeijer D" first="D" last="Wismeijer">D. Wismeijer</name>
<affiliation><nlm:aff id="aff3"></nlm:aff>
</affiliation>
</author>
</analytic>
<series><title level="j">Dentomaxillofacial Radiology</title>
<idno type="ISSN">0250-832X</idno>
<idno type="eISSN">1476-542X</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>Objectives:</title>
<p>Bone loss around dental implants is generally measured by monitoring changes in marginal bone level using radiographs. After the first year of implantation, an implant should have <0.2 mm annual loss of marginal bone level to satisfy the criteria of success. However, the process of measuring marginal bone level on radiographs has a precision of 0.2 mm (or more) owing to variations in exposure geometry, exposure time and observer perception. Therefore, the value of the annual loss may vary considerably, especially when short intervals are considered. This study investigates how the success rate of dental implants depends on the way annual bone loss is calculated.</p>
</sec>
<sec><title>Methods:</title>
<p>Panoramic radiographs of 82 implant patients with an average follow-up of 10.4 years were analysed. Marginal bone levels near the implants were indicated by one observer. The annual loss of marginal bone level was determined according to four different calculation methods.</p>
</sec>
<sec><title>Results:</title>
<p>The methods yielded success rates of 9%, 45%, 81% and 89%.</p>
</sec>
<sec><title>Conclusions:</title>
<p>The success rate of dental implants measured on radiographs greatly depends on the details of the calculation method. Without rigorous standardization, annual bone loss and implant success rate are not well defined.</p>
</sec>
</div>
</front>
</TEI>
<pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Dentomaxillofac Radiol</journal-id>
<journal-id journal-id-type="iso-abbrev">Dentomaxillofac Radiol</journal-id>
<journal-id journal-id-type="publisher-id">dmfr</journal-id>
<journal-title-group><journal-title>Dentomaxillofacial Radiology</journal-title>
</journal-title-group>
<issn pub-type="ppub">0250-832X</issn>
<issn pub-type="epub">1476-542X</issn>
<publisher><publisher-name>The British Institute of Radiology.</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">25030551</article-id>
<article-id pub-id-type="pmc">4170845</article-id>
<article-id pub-id-type="publisher-manuscript">14007</article-id>
<article-id pub-id-type="doi">10.1259/dmfr.20140007</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Technical Report</subject>
</subj-group>
</article-categories>
<title-group><article-title>Annual bone loss and success rates of dental implants based on radiographic measurements</article-title>
<alt-title alt-title-type="left-running-head">Annual bone loss and success rates of dental implants</alt-title>
<alt-title alt-title-type="right-running-head">W Geraets <italic>et al</italic>
</alt-title>
</title-group>
<contrib-group><contrib contrib-type="author" corresp="yes"><name><surname>Geraets</surname>
<given-names>W</given-names>
</name>
<xref ref-type="aff" rid="aff1"><sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Zhang</surname>
<given-names>L</given-names>
</name>
<xref ref-type="aff" rid="aff2"><sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Liu</surname>
<given-names>Y</given-names>
</name>
<xref ref-type="aff" rid="aff3"><sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Wismeijer</surname>
<given-names>D</given-names>
</name>
<xref ref-type="aff" rid="aff3"><sup>3</sup>
</xref>
</contrib>
<aff id="aff1"><label><sup>1</sup>
</label>
<addr-line>Department of Oral and Maxillofacial Radiology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University, Amsterdam, Netherlands</addr-line>
</aff>
<aff id="aff2"><label><sup>2</sup>
</label>
<addr-line>Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China</addr-line>
</aff>
<aff id="aff3"><label><sup>3</sup>
</label>
<addr-line>Department of Oral Implantology and Prosthetics, Research Institute MOVE, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University, Amsterdam, Netherlands</addr-line>
</aff>
</contrib-group>
<author-notes><corresp id="cor1">Correspondence to: Dr Wil Geraets. E-mail: <email xlink:href="w.geraets@acta.nl">w.geraets@acta.nl</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub"><month>10</month>
<year>2014</year>
<string-date>October 2014</string-date>
</pub-date>
<pub-date pub-type="epub"><day>21</day>
<month>8</month>
<year>2014</year>
</pub-date>
<volume>43</volume>
<issue>7</issue>
<elocation-id>20140007</elocation-id>
<history><date date-type="received"><day>8</day>
<month>1</month>
<year>2014</year>
<string-date>Received on January 8, 2014</string-date>
</date>
<date date-type="rev-recd"><day>16</day>
<month>7</month>
<year>2014</year>
<string-date>Revised on July 16, 2014</string-date>
</date>
<date date-type="accepted"><day>16</day>
<month>7</month>
<year>2014</year>
<string-date>Accepted on July 16, 2014</string-date>
</date>
</history>
<permissions><copyright-statement>© 2014 The Authors. Published by the British Institute of Radiology</copyright-statement>
<copyright-year>2014</copyright-year>
<copyright-holder>The British Institute of Radiology</copyright-holder>
</permissions>
<self-uri content-type="pdf" xlink:href="dmfr.20140007.pdf"></self-uri>
<abstract><sec><title>Objectives:</title>
<p>Bone loss around dental implants is generally measured by monitoring changes in marginal bone level using radiographs. After the first year of implantation, an implant should have <0.2 mm annual loss of marginal bone level to satisfy the criteria of success. However, the process of measuring marginal bone level on radiographs has a precision of 0.2 mm (or more) owing to variations in exposure geometry, exposure time and observer perception. Therefore, the value of the annual loss may vary considerably, especially when short intervals are considered. This study investigates how the success rate of dental implants depends on the way annual bone loss is calculated.</p>
</sec>
<sec><title>Methods:</title>
<p>Panoramic radiographs of 82 implant patients with an average follow-up of 10.4 years were analysed. Marginal bone levels near the implants were indicated by one observer. The annual loss of marginal bone level was determined according to four different calculation methods.</p>
</sec>
<sec><title>Results:</title>
<p>The methods yielded success rates of 9%, 45%, 81% and 89%.</p>
</sec>
<sec><title>Conclusions:</title>
<p>The success rate of dental implants measured on radiographs greatly depends on the details of the calculation method. Without rigorous standardization, annual bone loss and implant success rate are not well defined.</p>
</sec>
</abstract>
<kwd-group><kwd>marginal distance</kwd>
<x xml:space="preserve">; </x>
<kwd>radiographs</kwd>
<x xml:space="preserve">; </x>
<kwd>noise</kwd>
<x xml:space="preserve">; </x>
<kwd>criteria</kwd>
<x xml:space="preserve">; </x>
<kwd>success rate</kwd>
</kwd-group>
<counts><fig-count count="5"></fig-count>
<table-count count="1"></table-count>
<ref-count count="26"></ref-count>
<page-count count="6"></page-count>
</counts>
</article-meta>
</front>
</pmc>
</record>
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