Validation of the Accuracy of Postoperative Analysis Methods for Locating the Actual Position of Implants: An In Vitro Study

Se-Mok Oh; Du-Hyeong Lee

doi:10.3390/app10207266

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Validation of the Accuracy of Postoperative Analysis Methods for Locating the Actual Position of Implants: An In Vitro Study

Journal article

Peer reviewed

Validation of the Accuracy of Postoperative Analysis Methods for Locating the Actual Position of Implants: An In Vitro Study

Se-Mok Oh and Du-Hyeong Lee

Applied sciences, Vol.10(20), pp.7266-10

10/15/2020

DOI: 10.3390/app10207266

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https://doi.org/10.3390/app10207266View

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Abstract

Featured Application Validation of the methodological accuracy of postoperative methods for locating an implant's position can help clinicians to select a reliable method and interpret the results of other reports. Assessment of the accuracy of an implant guide system is essential, yet the reliability of postoperative methods for locating the implant position has still not been clarified. This study therefore sought to evaluate the accuracy of postoperative methods for locating the actual position of implants in terms of their linear and angular deviations. The implant position in a dentiform model was located using the following three methods: manual matching on a cone-beam computed tomography (CBCT) image (MC group), manual matching on a mesh model of CBCT (MM group), and automatic matching on a scan abutment of a scan image (AS group). Thirty clinicians adopted each method, and the estimated position of the implant in each group was compared three-dimensionally with the reference implant position using image analysis software in terms of the linear, vertical, and angular deviations. One-way analysis of variance (ANOVA) and Tukey's post-hoc test were used for statistical analyses (alpha = 0.05). In general, the deviations were the largest in the MC group, followed by the MM group and the AS group. The ANOVA results suggested that all deviations values were markedly smaller in the AS group than in the MC group (p < 0.001). The interoperator measurement variability of all deviations was relatively smaller in the AS group than in the other two groups. The automatic matching method using scan abutments was more accurate than the manual matching methods using CBCT and mesh images in assessing the deviations that existed between the planned and actual positions of the implant. The use of scan abutments is recommended for the postoperative assessment of an implant's placement location.

Chemistry

Chemistry, Multidisciplinary

Engineering

Engineering, Multidisciplinary

Materials Science

Materials Science, Multidisciplinary

Physical Sciences

Physics

Physics, Applied

Science & Technology

Technology

Details

Title: Subtitle: Validation of the Accuracy of Postoperative Analysis Methods for Locating the Actual Position of Implants: An In Vitro Study
Creators: Se-Mok Oh - Kyungpook National University
Du-Hyeong Lee - Kyungpook Natl Univ, Sch Dent, Dept Prosthodont, Daegu 41940, South Korea
Resource Type: Journal article
Publication Details: Applied sciences, Vol.10(20), pp.7266-10
DOI: 10.3390/app10207266
ISSN: 2076-3417
eISSN: 2076-3417
Publisher: Mdpi
Number of pages: 10
Language: English
Date published: 10/15/2020
Academic Unit: Prosthodontics
Record Identifier: 9984914016402771

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