Registration of cone beam computed tomography data and intraoral surface scans – A prerequisite for guided implant surgery with CAD/CAM drilling guides
Identifieur interne : 006901 ( Ncbi/Checkpoint ); précédent : 006900; suivant : 006902Registration of cone beam computed tomography data and intraoral surface scans – A prerequisite for guided implant surgery with CAD/CAM drilling guides
Auteurs : Tabea Flügge ; Wiebe Derksen ; Jobine Te Poel ; Bassam Hassan ; Katja Nelson ; Daniel WismeijerSource :
- Clinical Oral Implants Research [ 0905-7161 ] ; 2016.
Abstract
Guided implant surgery (
The deviations between surface scan and
The segmentation (
The deviation between
Url:
DOI: 10.1111/clr.12925
PubMed: 27440381
PubMed Central: 5599947
Affiliations:
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PMC:5599947Le document en format XML
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/<styled-content style="fixed-case">CAM</styled-content>
drilling guides</title>
<author><name sortKey="Flugge, Tabea" sort="Flugge, Tabea" uniqKey="Flugge T" first="Tabea" last="Flügge">Tabea Flügge</name>
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<author><name sortKey="Derksen, Wiebe" sort="Derksen, Wiebe" uniqKey="Derksen W" first="Wiebe" last="Derksen">Wiebe Derksen</name>
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<author><name sortKey="Te Poel, Jobine" sort="Te Poel, Jobine" uniqKey="Te Poel J" first="Jobine" last="Te Poel">Jobine Te Poel</name>
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<author><name sortKey="Hassan, Bassam" sort="Hassan, Bassam" uniqKey="Hassan B" first="Bassam" last="Hassan">Bassam Hassan</name>
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<author><name sortKey="Nelson, Katja" sort="Nelson, Katja" uniqKey="Nelson K" first="Katja" last="Nelson">Katja Nelson</name>
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<author><name sortKey="Wismeijer, Daniel" sort="Wismeijer, Daniel" uniqKey="Wismeijer D" first="Daniel" last="Wismeijer">Daniel Wismeijer</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Registration of cone beam computed tomography data and intraoral surface scans – A prerequisite for guided implant surgery with <styled-content style="fixed-case">CAD</styled-content>
/<styled-content style="fixed-case">CAM</styled-content>
drilling guides</title>
<author><name sortKey="Flugge, Tabea" sort="Flugge, Tabea" uniqKey="Flugge T" first="Tabea" last="Flügge">Tabea Flügge</name>
<affiliation><nlm:aff id="clr12925-aff-0001"></nlm:aff>
</affiliation>
<affiliation><nlm:aff id="clr12925-aff-0002"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Derksen, Wiebe" sort="Derksen, Wiebe" uniqKey="Derksen W" first="Wiebe" last="Derksen">Wiebe Derksen</name>
<affiliation><nlm:aff id="clr12925-aff-0001"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Te Poel, Jobine" sort="Te Poel, Jobine" uniqKey="Te Poel J" first="Jobine" last="Te Poel">Jobine Te Poel</name>
<affiliation><nlm:aff id="clr12925-aff-0001"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Hassan, Bassam" sort="Hassan, Bassam" uniqKey="Hassan B" first="Bassam" last="Hassan">Bassam Hassan</name>
<affiliation><nlm:aff id="clr12925-aff-0001"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Nelson, Katja" sort="Nelson, Katja" uniqKey="Nelson K" first="Katja" last="Nelson">Katja Nelson</name>
<affiliation><nlm:aff id="clr12925-aff-0002"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Wismeijer, Daniel" sort="Wismeijer, Daniel" uniqKey="Wismeijer D" first="Daniel" last="Wismeijer">Daniel Wismeijer</name>
<affiliation><nlm:aff id="clr12925-aff-0001"></nlm:aff>
</affiliation>
</author>
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<series><title level="j">Clinical Oral Implants Research</title>
<idno type="ISSN">0905-7161</idno>
<idno type="eISSN">1600-0501</idno>
<imprint><date when="2016">2016</date>
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<front><div type="abstract" xml:lang="en"><title>Abstract</title>
<sec id="clr12925-sec-0001"><title>Objectives</title>
<p>Guided implant surgery (<styled-content style="fixed-case">GIS</styled-content>
) is performed with drilling guides that are produced on the virtual tooth model using <styled-content style="fixed-case">CAD</styled-content>
/<styled-content style="fixed-case">CAM</styled-content>
technology. The prerequisite for this workflow is the alignment of patients cone beam computed tomography <styled-content style="fixed-case">CBCT</styled-content>
and surface scan (registration). Dental restorations may cause deteriorating imaging artifacts in <styled-content style="fixed-case">CBCT</styled-content>
data, which in turn can have an impact on the registration process. The influence of the user and the preprocessing of data and of image artifacts on the registration accuracy were examined.</p>
</sec>
<sec id="clr12925-sec-0002"><title>Material and Methods</title>
<p><styled-content style="fixed-case">CBCT</styled-content>
data and intraoral surface scans of 36 patients were used for virtual implant planning in coDiagnostiX (Dentalwings, Montreal, Canada). <styled-content style="fixed-case">CBCT</styled-content>
data were reconstructed to a three‐dimensional anatomical model with the default settings provided by the software and also manually by four different examiners. Subsequently, the <styled-content style="fixed-case">CBCT</styled-content>
and intraoral surface models were registered by each examiner with the help of anatomical landmarks. Patients' data were subdivided into four groups (A–D) according to the number of metallic restorations: A = 0–2 restorations, B = 3–5 restorations, C = 6–8 restorations and D > 8 restorations. After registration, the distances between <styled-content style="fixed-case">CBCT</styled-content>
and dental surface models were measured. Linear regression models were used to assess the influence of the segmentation, the examiner and to the number of restorations (<italic>P</italic>
< 0.05).</p>
</sec>
<sec id="clr12925-sec-0003"><title>Results</title>
<p>The deviations between surface scan and <styled-content style="fixed-case">CBCT</styled-content>
models accounted to 0.54 mm (mean). The mean deviations were 0.69 mm (max. 24.8 mm) and 0.4 mm (max. 9.1 mm) for default and manual segmentation, respectively. Mean deviations of 0.36 mm (Group A), 0.43 mm (Group B), 0.67 mm (Group C) and 1.01 mm (Group D) were recorded.</p>
<p>The segmentation (<italic>P</italic>
= 0.000), the user (<italic>P</italic>
= 0.0052) and the number of restorations (<italic>P</italic>
= 0.0337) had a significant influence on the registration accuracy.</p>
</sec>
<sec id="clr12925-sec-0004"><title>Conclusions</title>
<p>The deviation between <styled-content style="fixed-case">CBCT</styled-content>
and surface scan model resulting from inaccurate registration is transferred to the surgical field and results in a deviation between the planned and actual implant position. The registration accuracy in commercial virtual implant planning software is significantly influenced by the preprocessing of imported data, by the user and by the number of restorations resulting in clinically non‐acceptable deviations encoded in drilling guides.</p>
</sec>
</div>
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<tree><noCountry><name sortKey="Derksen, Wiebe" sort="Derksen, Wiebe" uniqKey="Derksen W" first="Wiebe" last="Derksen">Wiebe Derksen</name>
<name sortKey="Flugge, Tabea" sort="Flugge, Tabea" uniqKey="Flugge T" first="Tabea" last="Flügge">Tabea Flügge</name>
<name sortKey="Hassan, Bassam" sort="Hassan, Bassam" uniqKey="Hassan B" first="Bassam" last="Hassan">Bassam Hassan</name>
<name sortKey="Nelson, Katja" sort="Nelson, Katja" uniqKey="Nelson K" first="Katja" last="Nelson">Katja Nelson</name>
<name sortKey="Te Poel, Jobine" sort="Te Poel, Jobine" uniqKey="Te Poel J" first="Jobine" last="Te Poel">Jobine Te Poel</name>
<name sortKey="Wismeijer, Daniel" sort="Wismeijer, Daniel" uniqKey="Wismeijer D" first="Daniel" last="Wismeijer">Daniel Wismeijer</name>
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