Effect of platform switching on crestal bone levels around implants in the posterior mandible: 3 years results from a multicentre randomized clinical trial
Identifieur interne : 000870 ( Main/Exploration ); précédent : 000869; suivant : 000871Effect of platform switching on crestal bone levels around implants in the posterior mandible: 3 years results from a multicentre randomized clinical trial
Auteurs : Salomão Rocha ; Wilfried Wagner ; Jörg Wiltfang ; Pedro Nicolau ; Maximilian Moergel ; Ana Messias ; Eleonore Behrens ; Fernando GuerraSource :
- Journal of Clinical Periodontology [ 0303-6979 ] ; 2016.
Abstract
Evaluation of differences in the clinical performance and crestal bone levels between implants restored with single crowns with platform‐matched or platform‐switched abutments after 3 years.
The study enrolled adult patients missing two or more adjacent teeth in the posterior mandible with natural teeth mesial to the implant site. Randomization followed open‐flap implant insertion and the corresponding matching or switching healing abutments placed at surgery. Conventional loading was made with cemented crowns. Clinical follow‐up took place annually after loading up to 3 years. Bone level changes were measured in standardized radiographs as the variation in crestal bone from one evaluation to the next.
Sixty‐three patients with a total of 135 implants (66 platform matching, 69 platform switching) were analysed. From surgery to 36 months, mean bone loss was 0.28 ± 0.56 mm for the platform‐switching group and 0.68 ± 0.64 mm for the platform‐matching group. A statistically significant difference was found between groups (
After 3 years, platform‐switching restorations showed a significant effect in the preservation of marginal bone levels compared to platform‐matching restorations.
Url:
DOI: 10.1111/jcpe.12522
PubMed: 26847169
PubMed Central: 5071662
Affiliations:
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Nicolau</name><affiliation><nlm:aff id="jcpe12522-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Moergel, Maximilian" sort="Moergel, Maximilian" uniqKey="Moergel M" first="Maximilian" last="Moergel">Maximilian Moergel</name><affiliation><nlm:aff id="jcpe12522-aff-0002"></nlm:aff></affiliation></author><author><name sortKey="Messias, Ana" sort="Messias, Ana" uniqKey="Messias A" first="Ana" last="Messias">Ana Messias</name><affiliation><nlm:aff id="jcpe12522-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Behrens, Eleonore" sort="Behrens, Eleonore" uniqKey="Behrens E" first="Eleonore" last="Behrens">Eleonore Behrens</name><affiliation><nlm:aff id="jcpe12522-aff-0003"></nlm:aff></affiliation></author><author><name sortKey="Guerra, Fernando" sort="Guerra, Fernando" uniqKey="Guerra F" first="Fernando" last="Guerra">Fernando Guerra</name><affiliation><nlm:aff id="jcpe12522-aff-0001"></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno 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type="wicri:Area/Main/Curation">000870</idno><idno type="wicri:Area/Main/Exploration">000870</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Effect of platform switching on crestal bone levels around implants in the posterior mandible: 3 years results from a multicentre randomized clinical trial</title><author><name sortKey="Rocha, Salomao" sort="Rocha, Salomao" uniqKey="Rocha S" first="Salomão" last="Rocha">Salomão Rocha</name><affiliation><nlm:aff id="jcpe12522-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Wagner, Wilfried" sort="Wagner, Wilfried" uniqKey="Wagner W" first="Wilfried" last="Wagner">Wilfried Wagner</name><affiliation><nlm:aff id="jcpe12522-aff-0002"></nlm:aff></affiliation></author><author><name sortKey="Wiltfang, Jorg" sort="Wiltfang, Jorg" uniqKey="Wiltfang J" first="Jörg" last="Wiltfang">Jörg Wiltfang</name><affiliation><nlm:aff id="jcpe12522-aff-0003"></nlm:aff></affiliation></author><author><name sortKey="Nicolau, Pedro" sort="Nicolau, Pedro" uniqKey="Nicolau P" first="Pedro" last="Nicolau">Pedro Nicolau</name><affiliation><nlm:aff id="jcpe12522-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Moergel, Maximilian" sort="Moergel, Maximilian" uniqKey="Moergel M" first="Maximilian" last="Moergel">Maximilian Moergel</name><affiliation><nlm:aff id="jcpe12522-aff-0002"></nlm:aff></affiliation></author><author><name sortKey="Messias, Ana" sort="Messias, Ana" uniqKey="Messias A" first="Ana" last="Messias">Ana Messias</name><affiliation><nlm:aff id="jcpe12522-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Behrens, Eleonore" sort="Behrens, Eleonore" uniqKey="Behrens E" first="Eleonore" last="Behrens">Eleonore Behrens</name><affiliation><nlm:aff id="jcpe12522-aff-0003"></nlm:aff></affiliation></author><author><name sortKey="Guerra, Fernando" sort="Guerra, Fernando" uniqKey="Guerra F" first="Fernando" last="Guerra">Fernando Guerra</name><affiliation><nlm:aff id="jcpe12522-aff-0001"></nlm:aff></affiliation></author></analytic><series><title level="j">Journal of Clinical Periodontology</title><idno type="ISSN">0303-6979</idno><idno type="eISSN">1600-051X</idno><imprint><date when="2016">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><title>Abstract</title><sec id="jcpe12522-sec-0001"><title>Objective</title><p>Evaluation of differences in the clinical performance and crestal bone levels between implants restored with single crowns with platform‐matched or platform‐switched abutments after 3 years.</p></sec><sec id="jcpe12522-sec-0002"><title>Material and Methods</title><p>The study enrolled adult patients missing two or more adjacent teeth in the posterior mandible with natural teeth mesial to the implant site. Randomization followed open‐flap implant insertion and the corresponding matching or switching healing abutments placed at surgery. Conventional loading was made with cemented crowns. Clinical follow‐up took place annually after loading up to 3 years. Bone level changes were measured in standardized radiographs as the variation in crestal bone from one evaluation to the next.</p></sec><sec id="jcpe12522-sec-0003"><title>Results</title><p>Sixty‐three patients with a total of 135 implants (66 platform matching, 69 platform switching) were analysed. From surgery to 36 months, mean bone loss was 0.28 ± 0.56 mm for the platform‐switching group and 0.68 ± 0.64 mm for the platform‐matching group. A statistically significant difference was found between groups (<italic>p</italic> = 0.002) with an estimate of 0.39 mm (0.15–0.64, 95% <styled-content style="fixed-case">CI</styled-content>) in favour of platform switching.</p></sec><sec id="jcpe12522-sec-0004"><title>Conclusions</title><p>After 3 years, platform‐switching restorations showed a significant effect in the preservation of marginal bone levels compared to platform‐matching restorations.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct></listBibl></div1></back></TEI><affiliations><list></list><tree><noCountry><name sortKey="Behrens, Eleonore" sort="Behrens, Eleonore" uniqKey="Behrens E" first="Eleonore" last="Behrens">Eleonore Behrens</name><name sortKey="Guerra, Fernando" sort="Guerra, Fernando" uniqKey="Guerra F" first="Fernando" last="Guerra">Fernando Guerra</name><name sortKey="Messias, Ana" sort="Messias, Ana" uniqKey="Messias A" first="Ana" last="Messias">Ana Messias</name><name sortKey="Moergel, Maximilian" sort="Moergel, Maximilian" uniqKey="Moergel M" first="Maximilian" last="Moergel">Maximilian Moergel</name><name sortKey="Nicolau, Pedro" sort="Nicolau, Pedro" uniqKey="Nicolau P" first="Pedro" last="Nicolau">Pedro Nicolau</name><name sortKey="Rocha, Salomao" sort="Rocha, Salomao" uniqKey="Rocha S" first="Salomão" last="Rocha">Salomão Rocha</name><name sortKey="Wagner, Wilfried" sort="Wagner, Wilfried" uniqKey="Wagner W" first="Wilfried" last="Wagner">Wilfried Wagner</name><name sortKey="Wiltfang, Jorg" sort="Wiltfang, Jorg" uniqKey="Wiltfang J" first="Jörg" last="Wiltfang">Jörg Wiltfang</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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