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The Use of Cone Beam Computed Tomography in Assessing the Insertion of Bone Conduction Hearing Implants

OBJECTIVE: This study aimed to compare postoperative cone beam CT (CBCT) imaging to implant stability quotient (ISQ) measurement and direct caliper measurements as a suitable technique to assess bone conduction hearing implant (BCHI) seating and insertion depth. METHODS: In vitro, BCHIs were complet...

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Autores principales: Calon, Tim George Ate, Johansson, Martin Lars, van den Burg, Elske Larissa, Janssen, Anna Maria Louisa, van Hoof, Marc, Stokroos, Robert Jan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5522863/
https://www.ncbi.nlm.nih.gov/pubmed/28791294
http://dx.doi.org/10.3389/fsurg.2017.00038
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author Calon, Tim George Ate
Johansson, Martin Lars
van den Burg, Elske Larissa
Janssen, Anna Maria Louisa
van Hoof, Marc
Stokroos, Robert Jan
author_facet Calon, Tim George Ate
Johansson, Martin Lars
van den Burg, Elske Larissa
Janssen, Anna Maria Louisa
van Hoof, Marc
Stokroos, Robert Jan
author_sort Calon, Tim George Ate
collection PubMed
description OBJECTIVE: This study aimed to compare postoperative cone beam CT (CBCT) imaging to implant stability quotient (ISQ) measurement and direct caliper measurements as a suitable technique to assess bone conduction hearing implant (BCHI) seating and insertion depth. METHODS: In vitro, BCHIs were completely (n = 9) and partially inserted (n = 9) in bone blocks of different densities and subsequently scanned. Scans were processed using 3DSlicer 4.3.1 and Mathematica 10.3. ISQ measurements were obtained for all BCHIs mounted with different abutment lengths (9, 12, and 14 mm). CBCT imaging was performed for patients with a clinical indication. RESULTS: In vitro, 95% prediction intervals for partially inserted and completely inserted BCHIs were determined. ISQ values significantly decreased with partial insertion, low-density artificial bone, and longer abutment lengths. Evaluation of in vitro and in vivo 3D models allowed for assessment of insertion depth and inclination. CONCLUSION: CBCT imaging allows to study implant seating and insertion depth after BCHI surgery. This can be useful when visual confirmation is limited. It is possible to distinguish a partial BCHI insertion from a complete insertion in artificial bone blocks. This technique could prove to be a valuable research tool. In vitro, ISQ values for Ponto BCHIs relate to abutment length, insertion depth, and artificial bone density.
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spelling pubmed-55228632017-08-08 The Use of Cone Beam Computed Tomography in Assessing the Insertion of Bone Conduction Hearing Implants Calon, Tim George Ate Johansson, Martin Lars van den Burg, Elske Larissa Janssen, Anna Maria Louisa van Hoof, Marc Stokroos, Robert Jan Front Surg Surgery OBJECTIVE: This study aimed to compare postoperative cone beam CT (CBCT) imaging to implant stability quotient (ISQ) measurement and direct caliper measurements as a suitable technique to assess bone conduction hearing implant (BCHI) seating and insertion depth. METHODS: In vitro, BCHIs were completely (n = 9) and partially inserted (n = 9) in bone blocks of different densities and subsequently scanned. Scans were processed using 3DSlicer 4.3.1 and Mathematica 10.3. ISQ measurements were obtained for all BCHIs mounted with different abutment lengths (9, 12, and 14 mm). CBCT imaging was performed for patients with a clinical indication. RESULTS: In vitro, 95% prediction intervals for partially inserted and completely inserted BCHIs were determined. ISQ values significantly decreased with partial insertion, low-density artificial bone, and longer abutment lengths. Evaluation of in vitro and in vivo 3D models allowed for assessment of insertion depth and inclination. CONCLUSION: CBCT imaging allows to study implant seating and insertion depth after BCHI surgery. This can be useful when visual confirmation is limited. It is possible to distinguish a partial BCHI insertion from a complete insertion in artificial bone blocks. This technique could prove to be a valuable research tool. In vitro, ISQ values for Ponto BCHIs relate to abutment length, insertion depth, and artificial bone density. Frontiers Media S.A. 2017-07-24 /pmc/articles/PMC5522863/ /pubmed/28791294 http://dx.doi.org/10.3389/fsurg.2017.00038 Text en Copyright © 2017 Calon, Johansson, van den Burg, Janssen, van Hoof and Stokroos. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Surgery
Calon, Tim George Ate
Johansson, Martin Lars
van den Burg, Elske Larissa
Janssen, Anna Maria Louisa
van Hoof, Marc
Stokroos, Robert Jan
The Use of Cone Beam Computed Tomography in Assessing the Insertion of Bone Conduction Hearing Implants
title The Use of Cone Beam Computed Tomography in Assessing the Insertion of Bone Conduction Hearing Implants
title_full The Use of Cone Beam Computed Tomography in Assessing the Insertion of Bone Conduction Hearing Implants
title_fullStr The Use of Cone Beam Computed Tomography in Assessing the Insertion of Bone Conduction Hearing Implants
title_full_unstemmed The Use of Cone Beam Computed Tomography in Assessing the Insertion of Bone Conduction Hearing Implants
title_short The Use of Cone Beam Computed Tomography in Assessing the Insertion of Bone Conduction Hearing Implants
title_sort use of cone beam computed tomography in assessing the insertion of bone conduction hearing implants
topic Surgery
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5522863/
https://www.ncbi.nlm.nih.gov/pubmed/28791294
http://dx.doi.org/10.3389/fsurg.2017.00038
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