Accuracy of cone beam computed tomography in following simulated autogenous graft resorption in maxillary sinus augmentation procedure: an ex vivo study
Identifieur interne : 011718 ( Main/Exploration ); précédent : 011717; suivant : 011719Accuracy of cone beam computed tomography in following simulated autogenous graft resorption in maxillary sinus augmentation procedure: an ex vivo study
Auteurs : Sanja Umanjec-Korac ; Azin Parsa ; Aria Darvishan Nikoozad ; Daniel Wismeijer ; Bassam HassanSource :
- Dentomaxillofacial Radiology [ 0250-832X ] ; ????.
Abstract
Maxillary sinus augmentation is a well-documented procedure with long-term success in implant dentistry. Assessing graft volume changes over time is crucial, since resorption remains a major concern. CBCT is commonly employed to assess the quantity and quality of the available bone at the implant receptor site. However, its applicability in following graft volume changes is yet to be determined. The study aimed to assess CBCT accuracy in following simulated graft resorption
4 differently sized autogenous bone blocks harvested from the zygomatic buttress were bilaterally placed in the maxillary sinus of 12 human cadavers. The Accuitomo (J Morita, Kyoto, Japan) CBCT system was employed to scan each one of the 4 grafts in each of the 12 cadavers using identical settings. Gold standard graft measurements were obtained using micro-CT. One independent observer assessed the volume of each graft on CBCT images twice. Intraobserver reliability was assessed using Cohen's kappa and one-sample
The mean micro-CT graft volumes were 97.12 ± 1.4, 197.32 ± 3.4, 361.41 ± 4.2 and 1040.11 ± 3.2 mm3 for Grafts 1–4, respectively, and the mean CBCT volumes of the corresponding grafts were 115.39 ± 7.01, 205.97 ± 9.91, 404.05 ± 16.81 and 1138.04 ± 20.98 mm3. CBCT measurements were statistically significantly different from micro-CT measurements (
In every case, CBCT overestimated the maxillary graft volume in comparison with micro-CT. However, the measurement differences were limited and might not influence clinical performance.
Url:
DOI: 10.1259/dmfr.20160092
PubMed: 27225346
PubMed Central: 5124774
Affiliations:
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Le document en format XML
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Accuracy of cone beam computed tomography in following simulated autogenous graft resorption in maxillary sinus augmentation procedure: an <italic>ex vivo</italic>
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<author><name sortKey="Umanjec Korac, Sanja" sort="Umanjec Korac, Sanja" uniqKey="Umanjec Korac S" first="Sanja" last="Umanjec-Korac">Sanja Umanjec-Korac</name>
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<front><div type="abstract" xml:lang="en"><sec><title>Objectives:</title>
<p>Maxillary sinus augmentation is a well-documented procedure with long-term success in implant dentistry. Assessing graft volume changes over time is crucial, since resorption remains a major concern. CBCT is commonly employed to assess the quantity and quality of the available bone at the implant receptor site. However, its applicability in following graft volume changes is yet to be determined. The study aimed to assess CBCT accuracy in following simulated graft resorption <italic>ex vivo</italic>
.</p>
</sec>
<sec><title>Methods:</title>
<p>4 differently sized autogenous bone blocks harvested from the zygomatic buttress were bilaterally placed in the maxillary sinus of 12 human cadavers. The Accuitomo (J Morita, Kyoto, Japan) CBCT system was employed to scan each one of the 4 grafts in each of the 12 cadavers using identical settings. Gold standard graft measurements were obtained using micro-CT. One independent observer assessed the volume of each graft on CBCT images twice. Intraobserver reliability was assessed using Cohen's kappa and one-sample <italic>t-</italic>
test was used to compare CBCT with micro-CT volumetric measurements.</p>
</sec>
<sec><title>Results:</title>
<p>The mean micro-CT graft volumes were 97.12 ± 1.4, 197.32 ± 3.4, 361.41 ± 4.2 and 1040.11 ± 3.2 mm<sup>3</sup>
for Grafts 1–4, respectively, and the mean CBCT volumes of the corresponding grafts were 115.39 ± 7.01, 205.97 ± 9.91, 404.05 ± 16.81 and 1138.04 ± 20.98 mm<sup>3</sup>
. CBCT measurements were statistically significantly different from micro-CT measurements (<italic>p</italic>
= 0.001). Intraobserver reliability was good (<italic>r</italic>
= 0.78).</p>
</sec>
<sec><title>Conclusions:</title>
<p>In every case, CBCT overestimated the maxillary graft volume in comparison with micro-CT. However, the measurement differences were limited and might not influence clinical performance.</p>
</sec>
</div>
</front>
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<tree><noCountry><name sortKey="Darvishan Nikoozad, Aria" sort="Darvishan Nikoozad, Aria" uniqKey="Darvishan Nikoozad A" first="Aria" last="Darvishan Nikoozad">Aria Darvishan Nikoozad</name>
<name sortKey="Hassan, Bassam" sort="Hassan, Bassam" uniqKey="Hassan B" first="Bassam" last="Hassan">Bassam Hassan</name>
<name sortKey="Parsa, Azin" sort="Parsa, Azin" uniqKey="Parsa A" first="Azin" last="Parsa">Azin Parsa</name>
<name sortKey="Umanjec Korac, Sanja" sort="Umanjec Korac, Sanja" uniqKey="Umanjec Korac S" first="Sanja" last="Umanjec-Korac">Sanja Umanjec-Korac</name>
<name sortKey="Wismeijer, Daniel" sort="Wismeijer, Daniel" uniqKey="Wismeijer D" first="Daniel" last="Wismeijer">Daniel Wismeijer</name>
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