Implant Stability in the Posterior Maxilla: A Controlled Clinical Trial
Identifieur interne : 007043 ( Ncbi/Merge ); précédent : 007042; suivant : 007044Implant Stability in the Posterior Maxilla: A Controlled Clinical Trial
Auteurs : Raquel Zita Gomes [Portugal] ; Mario Ramalho De Vasconcelos [Portugal] ; Isabel Maria Lopes Guerra [Portugal] ; Rute Alexandra Borges De Almeida [Portugal] ; Antonio Cabral De Campos Felino [Portugal]Source :
- BioMed Research International [ 2314-6133 ] ; 2017.
Abstract
To evaluate the primary and secondary stability of implants in the posterior maxilla.
Patients were allocated into three groups: (A) native bone, (B) partially regenerated bone, and (C) nearly totally regenerated bone. Insertion torque (IT) and implant stability quotient (ISQ) were measured at placement, to evaluate whether satisfactory high primary stability (IT ≥ 45 N/cm; ISQ ≥ 60) was achieved; ISQ was measured 15, 30, 45, and 60 days after placement, to investigate the evolution to secondary stability.
133 implants (Anyridge®, Megagen) were installed in 59 patients: 55 fixtures were placed in Group A, 57 in Group B, and 21 in Group C. Fifty-two implants had satisfactory high primary stability (IT ≥ 45 N/cm; ISQ ≥ 60). A positive correlation was found between all variables (IT, ISQ at
The evaluation of the primary and secondary implant stability may contribute to higher implant survival/success rates in critical areas, such as the regenerated posterior maxilla. The present study is registered in the ISRCTN registry with ID
Url:
DOI: 10.1155/2017/6825213
PubMed: 28626763
PubMed Central: 5463151
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id="I2">Department of Biomaterials, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto, Portugal</nlm:aff><country xml:lang="fr">Portugal</country><wicri:regionArea>Department of Biomaterials, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto</wicri:regionArea><wicri:noRegion>4200-393 Porto</wicri:noRegion></affiliation></author><author><name sortKey="Lopes Guerra, Isabel Maria" sort="Lopes Guerra, Isabel Maria" uniqKey="Lopes Guerra I" first="Isabel Maria" last="Lopes Guerra">Isabel Maria Lopes Guerra</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto, Portugal</nlm:aff><country xml:lang="fr">Portugal</country><wicri:regionArea>Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto</wicri:regionArea><wicri:noRegion>4200-393 Porto</wicri:noRegion></affiliation></author><author><name sortKey="De Almeida, Rute Alexandra Borges" sort="De Almeida, Rute Alexandra Borges" uniqKey="De Almeida R" first="Rute Alexandra Borges" last="De Almeida">Rute Alexandra Borges De Almeida</name><affiliation wicri:level="1"><nlm:aff id="I3">Mathematics Research Center, Statistics, Modulation and Computer Applications Office, Faculty of Sciences and Mathematics, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal</nlm:aff><country xml:lang="fr">Portugal</country><wicri:regionArea>Mathematics Research Center, Statistics, Modulation and Computer Applications Office, Faculty of Sciences and Mathematics, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto</wicri:regionArea><wicri:noRegion>4169-007 Porto</wicri:noRegion></affiliation></author><author><name sortKey="De Campos Felino, Antonio Cabral" sort="De Campos Felino, Antonio Cabral" uniqKey="De Campos Felino A" first="Antonio Cabral" last="De Campos Felino">Antonio Cabral De Campos Felino</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto, Portugal</nlm:aff><country xml:lang="fr">Portugal</country><wicri:regionArea>Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto</wicri:regionArea><wicri:noRegion>4200-393 Porto</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">28626763</idno><idno type="pmc">5463151</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5463151</idno><idno type="RBID">PMC:5463151</idno><idno type="doi">10.1155/2017/6825213</idno><date when="2017">2017</date><idno type="wicri:Area/Pmc/Corpus">002941</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" 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Manuel Pereira da Silva, 4200-393 Porto</wicri:regionArea><wicri:noRegion>4200-393 Porto</wicri:noRegion></affiliation></author><author><name sortKey="De Vasconcelos, Mario Ramalho" sort="De Vasconcelos, Mario Ramalho" uniqKey="De Vasconcelos M" first="Mario Ramalho" last="De Vasconcelos">Mario Ramalho De Vasconcelos</name><affiliation wicri:level="1"><nlm:aff id="I2">Department of Biomaterials, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto, Portugal</nlm:aff><country xml:lang="fr">Portugal</country><wicri:regionArea>Department of Biomaterials, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto</wicri:regionArea><wicri:noRegion>4200-393 Porto</wicri:noRegion></affiliation></author><author><name sortKey="Lopes Guerra, Isabel Maria" sort="Lopes Guerra, Isabel Maria" uniqKey="Lopes Guerra I" first="Isabel Maria" last="Lopes Guerra">Isabel Maria Lopes Guerra</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto, Portugal</nlm:aff><country xml:lang="fr">Portugal</country><wicri:regionArea>Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto</wicri:regionArea><wicri:noRegion>4200-393 Porto</wicri:noRegion></affiliation></author><author><name sortKey="De Almeida, Rute Alexandra Borges" sort="De Almeida, Rute Alexandra Borges" uniqKey="De Almeida R" first="Rute Alexandra Borges" last="De Almeida">Rute Alexandra Borges De Almeida</name><affiliation wicri:level="1"><nlm:aff id="I3">Mathematics Research Center, Statistics, Modulation and Computer Applications Office, Faculty of Sciences and Mathematics, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal</nlm:aff><country xml:lang="fr">Portugal</country><wicri:regionArea>Mathematics Research Center, Statistics, Modulation and Computer Applications Office, Faculty of Sciences and Mathematics, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto</wicri:regionArea><wicri:noRegion>4169-007 Porto</wicri:noRegion></affiliation></author><author><name sortKey="De Campos Felino, Antonio Cabral" sort="De Campos Felino, Antonio Cabral" uniqKey="De Campos Felino A" first="Antonio Cabral" last="De Campos Felino">Antonio Cabral De Campos Felino</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto, Portugal</nlm:aff><country xml:lang="fr">Portugal</country><wicri:regionArea>Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto</wicri:regionArea><wicri:noRegion>4200-393 Porto</wicri:noRegion></affiliation></author></analytic><series><title level="j">BioMed Research International</title><idno type="ISSN">2314-6133</idno><idno type="eISSN">2314-6141</idno><imprint><date when="2017">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Aim</title><p> To evaluate the primary and secondary stability of implants in the posterior maxilla.</p></sec><sec><title> Methods</title><p> Patients were allocated into three groups: (A) native bone, (B) partially regenerated bone, and (C) nearly totally regenerated bone. Insertion torque (IT) and implant stability quotient (ISQ) were measured at placement, to evaluate whether satisfactory high primary stability (IT ≥ 45 N/cm; ISQ ≥ 60) was achieved; ISQ was measured 15, 30, 45, and 60 days after placement, to investigate the evolution to secondary stability.</p></sec><sec><title> Results</title><p> 133 implants (Anyridge®, Megagen) were installed in 59 patients: 55 fixtures were placed in Group A, 57 in Group B, and 21 in Group C. Fifty-two implants had satisfactory high primary stability (IT ≥ 45 N/cm; ISQ ≥ 60). A positive correlation was found between all variables (IT, ISQ at<italic> t</italic> = 0,<italic> t</italic> = 60), and statistically higher IT and ISQ values were found for implants with satisfactory high primary stability. Significant differences were found for IT and ISQ between the groups (A, B, and C); however, no drops were reported in the median ISQ values during the healing period.</p></sec><sec><title> Conclusions</title><p> The evaluation of the primary and secondary implant stability may contribute to higher implant survival/success rates in critical areas, such as the regenerated posterior maxilla. The present study is registered in the ISRCTN registry with ID <ext-link ext-link-type="uri" xlink:href="http://www.isrctn.com/ISRCTN33469250">ISRCTN33469250</ext-link>.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Demiralp, K" uniqKey="Demiralp K">K. Ö. Demiralp</name></author><author><name sortKey="Akbulut, N" uniqKey="Akbulut N">N. Akbulut</name></author><author><name sortKey="Kursun, S" uniqKey="Kursun S">S. Kursun</name></author><author><name sortKey="Argun, D" uniqKey="Argun D">D. 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Biomed Res Int</journal-id><journal-id journal-id-type="iso-abbrev">Biomed Res Int</journal-id><journal-id journal-id-type="publisher-id">BMRI</journal-id><journal-title-group><journal-title>BioMed Research International</journal-title></journal-title-group><issn pub-type="ppub">2314-6133</issn><issn pub-type="epub">2314-6141</issn><publisher><publisher-name>Hindawi</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">28626763</article-id><article-id pub-id-type="pmc">5463151</article-id><article-id pub-id-type="doi">10.1155/2017/6825213</article-id><article-categories><subj-group subj-group-type="heading"><subject>Clinical Study</subject></subj-group></article-categories><title-group><article-title>Implant Stability in the Posterior Maxilla: A Controlled Clinical Trial</article-title></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid" authenticated="false">http://orcid.org/0000-0002-3360-3903</contrib-id><name><surname>Zita Gomes</surname><given-names>Raquel</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref><xref ref-type="corresp" rid="cor1"><sup>*</sup></xref></contrib><contrib contrib-type="author"><name><surname>de Vasconcelos</surname><given-names>Mario Ramalho</given-names></name><xref ref-type="aff" rid="I2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Lopes Guerra</surname><given-names>Isabel Maria</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid" authenticated="false">http://orcid.org/0000-0001-7755-5002</contrib-id><name><surname>de Almeida</surname><given-names>Rute Alexandra Borges</given-names></name><xref ref-type="aff" rid="I3"><sup>3</sup></xref></contrib><contrib contrib-type="author"><name><surname>de Campos Felino</surname><given-names>Antonio Cabral</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib></contrib-group><aff id="I1"><sup>1</sup>Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto, Portugal</aff><aff id="I2"><sup>2</sup>Department of Biomaterials, Faculty of Dental Medicine, University of Porto, Rua Manuel Pereira da Silva, 4200-393 Porto, Portugal</aff><aff id="I3"><sup>3</sup>Mathematics Research Center, Statistics, Modulation and Computer Applications Office, Faculty of Sciences and Mathematics, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal</aff><author-notes><corresp id="cor1">*Raquel Zita Gomes: <email>raquelzitagomes@hotmail.com</email></corresp><fn fn-type="other"><p>Academic Editor: Francesco Guido Mangano</p></fn></author-notes><pub-date pub-type="ppub"><year>2017</year></pub-date><pub-date pub-type="epub"><day>25</day><month>5</month><year>2017</year></pub-date><volume>2017</volume><elocation-id>6825213</elocation-id><history><date date-type="received"><day>1</day><month>4</month><year>2017</year></date><date date-type="rev-recd"><day>26</day><month>4</month><year>2017</year></date><date date-type="accepted"><day>3</day><month>5</month><year>2017</year></date></history><permissions><copyright-statement>Copyright © 2017 Raquel Zita Gomes et al.</copyright-statement><copyright-year>2017</copyright-year><license xlink:href="https://creativecommons.org/licenses/by/4.0/"><license-p>This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><sec><title>Aim</title><p> To evaluate the primary and secondary stability of implants in the posterior maxilla.</p></sec><sec><title> Methods</title><p> Patients were allocated into three groups: (A) native bone, (B) partially regenerated bone, and (C) nearly totally regenerated bone. Insertion torque (IT) and implant stability quotient (ISQ) were measured at placement, to evaluate whether satisfactory high primary stability (IT ≥ 45 N/cm; ISQ ≥ 60) was achieved; ISQ was measured 15, 30, 45, and 60 days after placement, to investigate the evolution to secondary stability.</p></sec><sec><title> Results</title><p> 133 implants (Anyridge®, Megagen) were installed in 59 patients: 55 fixtures were placed in Group A, 57 in Group B, and 21 in Group C. Fifty-two implants had satisfactory high primary stability (IT ≥ 45 N/cm; ISQ ≥ 60). A positive correlation was found between all variables (IT, ISQ at<italic> t</italic> = 0,<italic> t</italic> = 60), and statistically higher IT and ISQ values were found for implants with satisfactory high primary stability. Significant differences were found for IT and ISQ between the groups (A, B, and C); however, no drops were reported in the median ISQ values during the healing period.</p></sec><sec><title> Conclusions</title><p> The evaluation of the primary and secondary implant stability may contribute to higher implant survival/success rates in critical areas, such as the regenerated posterior maxilla. The present study is registered in the ISRCTN registry with ID <ext-link ext-link-type="uri" xlink:href="http://www.isrctn.com/ISRCTN33469250">ISRCTN33469250</ext-link>.</p></sec></abstract></article-meta></front><floats-group><fig id="fig1" orientation="portrait" position="float"><label>Figure 1</label><caption><p>Implant placement and ISQ measurement in a patient with partially regenerated bone (Group B): (a) a mucoperiosteal flap is raised and the partially regenerated bone is exposed; (b) the implant site is prepared in the partially regenerated bone; (c) the implant is placed in the partially regenerated bone; (d) the Smartpeg is connected for ISQ measure; (e) ISQ measure at placement; (f) since a satisfactory high primary implant stability is achieved (IT ≥ 45 N/cm and ISQ ≥ 60), the implant is not submerged and the transmucosal healing abutment is placed.</p></caption><graphic xlink:href="BMRI2017-6825213.001"></graphic></fig><fig id="fig2" orientation="portrait" position="float"><label>Figure 2</label><caption><p>IT and ISQ at <italic>t</italic> = 0 and <italic>t</italic> = 60 values distributions per group (levels of osseous regeneration) for all the 133 implants in the study. Group A: nonregenerated (native) bone; Group B: partially regenerated bone; Group C: nearly totally regenerated bone.</p></caption><graphic xlink:href="BMRI2017-6825213.002"></graphic></fig><fig id="fig3" orientation="portrait" position="float"><label>Figure 3</label><caption><p>IT and ISQ at <italic>t</italic> = 0 and <italic>t</italic> = 60 values distributions per group (levels of osseous regeneration) for implants with satisfactory high initial stability (IS) according to the protocol. Group A: nonregenerated (native) bone; Group B: partially regenerated bone; Group C: nearly totally regenerated bone.</p></caption><graphic xlink:href="BMRI2017-6825213.003"></graphic></fig><fig id="fig4" orientation="portrait" position="float"><label>Figure 4</label><caption><p>Torque and ISQ at <italic>t</italic> = 0 and <italic>t</italic> = 60 values distributions per group (levels of osseous regeneration) for implants without satisfactory high initial stability (WIS) according to the protocol. Group A: nonregenerated (native) bone; Group B: partially regenerated bone; Group C: nearly totally regenerated bone.</p></caption><graphic xlink:href="BMRI2017-6825213.004"></graphic></fig><fig id="fig5" orientation="portrait" position="float"><label>Figure 5</label><caption><p>Progression of ISQ values during the healing phase in the 3 groups of patients (Group A: nonregenerated bone; Group B: partially regenerated bone; Group C: nearly totally regenerated bone).</p></caption><graphic xlink:href="BMRI2017-6825213.005"></graphic></fig><table-wrap id="tab1" orientation="portrait" position="float"><label>Table 1</label><caption><p>Number of observations (per variable and per group) in all 133 considered implants.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1">Group</th><th align="center" rowspan="1" colspan="1">All implants (IT, initial and final ISQ measures)</th><th align="center" rowspan="1" colspan="1">Implants with ISQ measure at 15 days</th><th align="center" rowspan="1" colspan="1">Implants with ISQ measure at 30 days</th><th align="center" rowspan="1" colspan="1">Implants with ISQ measure at 45 days</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">A</td><td align="center" rowspan="1" colspan="1">55</td><td align="center" rowspan="1" colspan="1">14</td><td align="center" rowspan="1" colspan="1">14</td><td align="center" rowspan="1" colspan="1">10</td></tr><tr><td align="left" rowspan="1" colspan="1">B</td><td align="center" rowspan="1" colspan="1">57</td><td align="center" rowspan="1" colspan="1">14</td><td align="center" rowspan="1" colspan="1">13</td><td align="center" rowspan="1" colspan="1">11</td></tr><tr><td align="left" rowspan="1" colspan="1">C</td><td align="center" rowspan="1" colspan="1">21</td><td align="center" rowspan="1" colspan="1">12</td><td align="center" rowspan="1" colspan="1">12</td><td align="center" rowspan="1" colspan="1">12</td></tr><tr><td colspan="5" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">Total</td><td align="center" rowspan="1" colspan="1">133</td><td align="center" rowspan="1" colspan="1">40</td><td align="center" rowspan="1" colspan="1">39</td><td align="center" rowspan="1" colspan="1">33</td></tr></tbody></table></table-wrap><table-wrap id="tab2" orientation="portrait" position="float"><label>Table 2</label><caption><p>Number of observations (per variable and per group) in the 52 implants with satisfactory primary implant stability (IT ≥ 45 N/cm and ISQ ≥ 60).</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1">Group</th><th align="center" rowspan="1" colspan="1">Implants with satisfactory primary stability (IT, initial and final ISQ measures)</th><th align="center" rowspan="1" colspan="1">Implants with satisfactory primary stability with ISQ measure at 15 days</th><th align="center" rowspan="1" colspan="1">Implants with satisfactory primary stability with ISQ measure at 30 days</th><th align="center" rowspan="1" colspan="1">Implants with satisfactory primary stability with ISQ measure at 45 days</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">A</td><td align="center" rowspan="1" colspan="1">25</td><td align="center" rowspan="1" colspan="1">12</td><td align="center" rowspan="1" colspan="1">12</td><td align="center" rowspan="1" colspan="1">8</td></tr><tr><td align="left" rowspan="1" colspan="1">B</td><td align="center" rowspan="1" colspan="1">20</td><td align="center" rowspan="1" colspan="1">13</td><td align="center" rowspan="1" colspan="1">12</td><td align="center" rowspan="1" colspan="1">10</td></tr><tr><td align="left" rowspan="1" colspan="1">C</td><td align="center" rowspan="1" colspan="1">7</td><td align="center" rowspan="1" colspan="1">7</td><td align="center" rowspan="1" colspan="1">7</td><td align="center" rowspan="1" colspan="1">7</td></tr><tr><td colspan="5" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">Total</td><td align="center" rowspan="1" colspan="1">52</td><td align="center" rowspan="1" colspan="1">32</td><td align="center" rowspan="1" colspan="1">31</td><td align="center" rowspan="1" colspan="1">25</td></tr></tbody></table></table-wrap><table-wrap id="tab3" orientation="portrait" position="float"><label>Table 3</label><caption><p>Statistical measures for all the implants and for implants with satisfactory primary implant stability (IS) (IT ≥ 45 N/cm and ISQ ≥ 60), in which ISQ measures were taken 15, 30, and 45 days after placement too.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1">Variable </th><th align="center" rowspan="1" colspan="1"><italic>N </italic></th><th align="center" rowspan="1" colspan="1">Min. </th><th align="center" rowspan="1" colspan="1">1st quar. </th><th align="center" rowspan="1" colspan="1">Median </th><th align="center" rowspan="1" colspan="1">Mean </th><th align="center" rowspan="1" colspan="1">3rd quar. </th><th align="center" rowspan="1" colspan="1">Max. </th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">IT</td><td align="center" rowspan="1" colspan="1">133</td><td align="center" rowspan="1" colspan="1">5.00</td><td align="center" rowspan="1" colspan="1">25.00</td><td align="center" rowspan="1" colspan="1">35.00</td><td align="center" rowspan="1" colspan="1">37.62</td><td align="center" rowspan="1" colspan="1">50.00</td><td align="center" rowspan="1" colspan="1">70.00</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 0</td><td align="center" rowspan="1" colspan="1">133</td><td align="center" rowspan="1" colspan="1">10.00</td><td align="center" rowspan="1" colspan="1">63.00</td><td align="center" rowspan="1" colspan="1">72.50</td><td align="center" rowspan="1" colspan="1">69.06</td><td align="center" rowspan="1" colspan="1">77.00</td><td align="center" rowspan="1" colspan="1">87.00</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 60</td><td align="center" rowspan="1" colspan="1">133</td><td align="center" rowspan="1" colspan="1">49.50</td><td align="center" rowspan="1" colspan="1">67.50</td><td align="center" rowspan="1" colspan="1">73.50</td><td align="center" rowspan="1" colspan="1">71.80</td><td align="center" rowspan="1" colspan="1">77.50</td><td align="center" rowspan="1" colspan="1">86.00</td></tr><tr><td align="left" rowspan="1" colspan="1">IT (IS)</td><td align="center" rowspan="1" colspan="1">52</td><td align="center" rowspan="1" colspan="1">45.00</td><td align="center" rowspan="1" colspan="1">45.00</td><td align="center" rowspan="1" colspan="1">50.00</td><td align="center" rowspan="1" colspan="1">52.50</td><td align="center" rowspan="1" colspan="1">60.00</td><td align="center" rowspan="1" colspan="1">70.00</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 0 (IS)</td><td align="center" rowspan="1" colspan="1">52</td><td align="center" rowspan="1" colspan="1">70.00</td><td align="center" rowspan="1" colspan="1">75.00</td><td align="center" rowspan="1" colspan="1">77.25</td><td align="center" rowspan="1" colspan="1">77.03</td><td align="center" rowspan="1" colspan="1">79.00</td><td align="center" rowspan="1" colspan="1">87.00</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 15 (IS)</td><td align="center" rowspan="1" colspan="1">32</td><td align="center" rowspan="1" colspan="1">59.50</td><td align="center" rowspan="1" colspan="1">72.88</td><td align="center" rowspan="1" colspan="1">76.25</td><td align="center" rowspan="1" colspan="1">75.58</td><td align="center" rowspan="1" colspan="1">79.12</td><td align="center" rowspan="1" colspan="1">85.50</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 30 (IS)</td><td align="center" rowspan="1" colspan="1">31</td><td align="center" rowspan="1" colspan="1">59.50</td><td align="center" rowspan="1" colspan="1">72.50</td><td align="center" rowspan="1" colspan="1">76.00</td><td align="center" rowspan="1" colspan="1">75.35</td><td align="center" rowspan="1" colspan="1">79.25</td><td align="center" rowspan="1" colspan="1">87.00</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 45 (IS)</td><td align="center" rowspan="1" colspan="1">25</td><td align="center" rowspan="1" colspan="1">60.00</td><td align="center" rowspan="1" colspan="1">72.50</td><td align="center" rowspan="1" colspan="1">75.50</td><td align="center" rowspan="1" colspan="1">75.44</td><td align="center" rowspan="1" colspan="1">75.44</td><td align="center" rowspan="1" colspan="1">86.00</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 60 (IS)</td><td align="center" rowspan="1" colspan="1">52</td><td align="center" rowspan="1" colspan="1">60.00</td><td align="center" rowspan="1" colspan="1">74.50</td><td align="center" rowspan="1" colspan="1">77.50</td><td align="center" rowspan="1" colspan="1">76.57</td><td align="center" rowspan="1" colspan="1">79.00</td><td align="center" rowspan="1" colspan="1">86.00</td></tr></tbody></table></table-wrap><table-wrap id="tab4" orientation="portrait" position="float"><label>Table 4</label><caption><p>Correlation coefficients (Spearman), with <italic>p</italic> value between parenthesis, considering all implants.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1">All implants </th><th align="center" rowspan="1" colspan="1">IT</th><th align="center" rowspan="1" colspan="1">ISQ <italic>t</italic> = 0</th><th align="center" rowspan="1" colspan="1">ISQ <italic>t</italic> = 60</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">IT</td><td align="center" rowspan="1" colspan="1">1</td><td align="center" rowspan="1" colspan="1">—</td><td align="center" rowspan="1" colspan="1">—</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 0</td><td align="center" rowspan="1" colspan="1">0.76 <break></break>(2.2<italic>∗</italic>10<sup>−16</sup>)</td><td align="center" rowspan="1" colspan="1">1</td><td align="center" rowspan="1" colspan="1">—</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 60</td><td align="center" rowspan="1" colspan="1">0.67 <break></break>(2.2<italic>∗</italic>10<sup>−16</sup>)</td><td align="center" rowspan="1" colspan="1">0.70 <break></break>(2.2<italic>∗</italic>10<sup>−16</sup>)</td><td align="center" rowspan="1" colspan="1">1</td></tr></tbody></table></table-wrap><table-wrap id="tab5" orientation="portrait" position="float"><label>Table 5</label><caption><p>Correlation coefficients (Spearman), with <italic>p</italic> value between parenthesis, considering implants that had satisfactory primary implant stability (IS).</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1">Implants with satisfactory primary implant stability (IS) </th><th align="center" rowspan="1" colspan="1">IT</th><th align="center" rowspan="1" colspan="1">ISQ <italic>t</italic> = 0</th><th align="center" rowspan="1" colspan="1">ISQ <italic>t</italic> = 60</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">IT</td><td align="center" rowspan="1" colspan="1">1</td><td align="center" rowspan="1" colspan="1">—</td><td align="center" rowspan="1" colspan="1">—</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 0</td><td align="center" rowspan="1" colspan="1">0.43 <break></break>(0.001)</td><td align="center" rowspan="1" colspan="1">1</td><td align="center" rowspan="1" colspan="1">—</td></tr><tr><td align="left" rowspan="1" colspan="1">ISQ <italic>t</italic> = 60</td><td align="center" rowspan="1" colspan="1">0.46 <break></break>(0.0005)</td><td align="center" rowspan="1" colspan="1">0.69 <break></break>(1.5<italic>∗</italic>10<sup>−8</sup>)</td><td align="center" rowspan="1" colspan="1">1</td></tr></tbody></table></table-wrap><table-wrap id="tab6" orientation="portrait" position="float"><label>Table 6</label><caption><p>Median values of ISQ measures at each time, per group (Group A: nonregenerated bone; Group B: partially regenerated bone; Group C: nearly totally regenerated bone), in implants with satisfactory high primary implant stability.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1"> </th><th align="center" rowspan="1" colspan="1">ISQ <italic>t</italic> = 0</th><th align="center" rowspan="1" colspan="1">ISQ <italic>t</italic> = 15</th><th align="center" rowspan="1" colspan="1">ISQ <italic>t</italic> = 30</th><th align="center" rowspan="1" colspan="1">ISQ <italic>t</italic> = 45</th><th align="center" rowspan="1" colspan="1">ISQ <italic>t</italic> = 60</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">A</td><td align="center" rowspan="1" colspan="1">78.00</td><td align="center" rowspan="1" colspan="1">79.25</td><td align="center" rowspan="1" colspan="1">77.75</td><td align="center" rowspan="1" colspan="1">78.50</td><td align="center" rowspan="1" colspan="1">78.00</td></tr><tr><td align="left" rowspan="1" colspan="1">B</td><td align="center" rowspan="1" colspan="1">75.25</td><td align="center" rowspan="1" colspan="1">73.50</td><td align="center" rowspan="1" colspan="1">74.00</td><td align="center" rowspan="1" colspan="1">73.75</td><td align="center" rowspan="1" colspan="1">75.00</td></tr><tr><td align="left" rowspan="1" colspan="1">C</td><td align="center" rowspan="1" colspan="1">77.50</td><td align="center" rowspan="1" colspan="1">76.50</td><td align="center" rowspan="1" colspan="1">73.50</td><td align="center" rowspan="1" colspan="1">74.50</td><td align="center" rowspan="1" colspan="1">74.50</td></tr></tbody></table></table-wrap></floats-group></pmc><affiliations><list><country><li>Portugal</li></country></list><tree><country name="Portugal"><noRegion><name sortKey="Zita Gomes, Raquel" sort="Zita Gomes, Raquel" uniqKey="Zita Gomes R" first="Raquel" last="Zita Gomes">Raquel Zita Gomes</name></noRegion><name sortKey="De Almeida, Rute Alexandra Borges" sort="De Almeida, Rute Alexandra Borges" uniqKey="De Almeida R" first="Rute Alexandra Borges" last="De Almeida">Rute Alexandra Borges De Almeida</name><name sortKey="De Campos Felino, Antonio Cabral" sort="De Campos Felino, Antonio Cabral" uniqKey="De Campos Felino A" first="Antonio Cabral" last="De Campos Felino">Antonio Cabral De Campos Felino</name><name sortKey="De Vasconcelos, Mario Ramalho" sort="De Vasconcelos, Mario Ramalho" uniqKey="De Vasconcelos M" first="Mario Ramalho" last="De Vasconcelos">Mario Ramalho De Vasconcelos</name><name sortKey="Lopes Guerra, Isabel Maria" sort="Lopes Guerra, Isabel Maria" uniqKey="Lopes Guerra I" first="Isabel Maria" last="Lopes Guerra">Isabel Maria Lopes Guerra</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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