Assessment of trabecular bone changes around endosseous implants using image analysis techniques: A preliminary study
Identifieur interne : 005191 ( Ncbi/Merge ); précédent : 005190; suivant : 005192Assessment of trabecular bone changes around endosseous implants using image analysis techniques: A preliminary study
Auteurs : Mervet El Zuki [Libye] ; Galal Omami [Hong Kong] ; Keith Horner [Royaume-Uni]Source :
- Imaging Science in Dentistry [ 2233-7822 ] ; 2014.
Abstract
The objective of this study was to assess the trabecular bone changes that occurred around functional endosseous dental implants by means of radiographic image analysis techniques.
Immediate preoperative and postoperative periapical radiographs of de-identified implant patients at the University Dental Hospital of Manchester were retrieved, screened for specific inclusion criteria, digitized, and quantified for structural elements of the trabecular bone around the endosseous implants, by using image analysis techniques. Data were analyzed using SPSS version 11.5. P values of less than 0.05 were considered statistically significant.
A total of 12 implants from 11 patients were selected for the study, and 26 regions of interest were obtained. There was a significant increase in the bone area in terms of the mean distance between nodes (p=0.006) and a significant decrease in the marrow area in terms of the bone area (p=0.006) and the length of marrow spaces (p=0.032).
It appeared that the bone around the implant underwent remodeling that resulted in a net increase in bone after implant placement.
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DOI: 10.5624/isd.2014.44.2.129
PubMed: 24944962
PubMed Central: 4061296
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Assessment of trabecular bone changes around endosseous implants using image analysis techniques: A preliminary study</title><author><name sortKey="El Zuki, Mervet" sort="El Zuki, Mervet" uniqKey="El Zuki M" first="Mervet" last="El Zuki">Mervet El Zuki</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Oral Medicine and Radiology, Benghazi University College of Dentistry, Benghazi, Libya.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Libye</country><wicri:regionArea>Department of Oral Medicine and Radiology, Benghazi University College of Dentistry, Benghazi</wicri:regionArea><wicri:noRegion>Benghazi</wicri:noRegion></affiliation></author><author><name sortKey="Omami, Galal" sort="Omami, Galal" uniqKey="Omami G" first="Galal" last="Omami">Galal Omami</name><affiliation wicri:level="1"><nlm:aff id="A2">Oral Diagnosis and Polyclinics, Faculty of Dentistry, The University of Hong Kong, Hong Kong.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Hong Kong</country><wicri:regionArea>Oral Diagnosis and Polyclinics, Faculty of Dentistry, The University of Hong Kong</wicri:regionArea><wicri:noRegion>The University of Hong Kong</wicri:noRegion></affiliation></author><author><name sortKey="Horner, Keith" sort="Horner, Keith" uniqKey="Horner K" first="Keith" last="Horner">Keith Horner</name><affiliation wicri:level="3"><nlm:aff id="A3">Department of Oral Radiology, University Dental Hospital of Manchester, Manchester, United Kingdom.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Royaume-Uni</country><wicri:regionArea>Department of Oral Radiology, University Dental Hospital of Manchester, Manchester</wicri:regionArea><placeName><settlement type="city">Manchester</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Manchester</region></placeName></affiliation></author></titleStmt><publicationStmt><idno 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Mervet" sort="El Zuki, Mervet" uniqKey="El Zuki M" first="Mervet" last="El Zuki">Mervet El Zuki</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Oral Medicine and Radiology, Benghazi University College of Dentistry, Benghazi, Libya.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Libye</country><wicri:regionArea>Department of Oral Medicine and Radiology, Benghazi University College of Dentistry, Benghazi</wicri:regionArea><wicri:noRegion>Benghazi</wicri:noRegion></affiliation></author><author><name sortKey="Omami, Galal" sort="Omami, Galal" uniqKey="Omami G" first="Galal" last="Omami">Galal Omami</name><affiliation wicri:level="1"><nlm:aff id="A2">Oral Diagnosis and Polyclinics, Faculty of Dentistry, The University of Hong Kong, Hong Kong.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Hong Kong</country><wicri:regionArea>Oral Diagnosis and Polyclinics, Faculty of Dentistry, The University of Hong Kong</wicri:regionArea><wicri:noRegion>The University of Hong Kong</wicri:noRegion></affiliation></author><author><name sortKey="Horner, Keith" sort="Horner, Keith" uniqKey="Horner K" first="Keith" last="Horner">Keith Horner</name><affiliation wicri:level="3"><nlm:aff id="A3">Department of Oral Radiology, University Dental Hospital of Manchester, Manchester, United Kingdom.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Royaume-Uni</country><wicri:regionArea>Department of Oral Radiology, University Dental Hospital of Manchester, Manchester</wicri:regionArea><placeName><settlement type="city">Manchester</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Manchester</region></placeName></affiliation></author></analytic><series><title level="j">Imaging Science in Dentistry</title><idno type="ISSN">2233-7822</idno><idno type="eISSN">2233-7830</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Purpose</title><p>The objective of this study was to assess the trabecular bone changes that occurred around functional endosseous dental implants by means of radiographic image analysis techniques.</p></sec><sec><title>Materials and Methods</title><p>Immediate preoperative and postoperative periapical radiographs of de-identified implant patients at the University Dental Hospital of Manchester were retrieved, screened for specific inclusion criteria, digitized, and quantified for structural elements of the trabecular bone around the endosseous implants, by using image analysis techniques. Data were analyzed using SPSS version 11.5. P values of less than 0.05 were considered statistically significant.</p></sec><sec><title>Results</title><p>A total of 12 implants from 11 patients were selected for the study, and 26 regions of interest were obtained. There was a significant increase in the bone area in terms of the mean distance between nodes (p=0.006) and a significant decrease in the marrow area in terms of the bone area (p=0.006) and the length of marrow spaces (p=0.032).</p></sec><sec><title>Conclusion</title><p>It appeared that the bone around the implant underwent remodeling that resulted in a net increase in bone after implant placement.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Br Gger, U" uniqKey="Br Gger U">U Brägger</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Moy, Pk" uniqKey="Moy P">PK Moy</name></author><author><name sortKey="Medina, D" uniqKey="Medina D">D Medina</name></author><author><name sortKey="Shetty, V" uniqKey="Shetty V">V Shetty</name></author><author><name sortKey="Aghaloo, Tl" uniqKey="Aghaloo T">TL Aghaloo</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Miles, Da" uniqKey="Miles D">DA Miles</name></author><author><name sortKey="Razzano, Mr" uniqKey="Razzano M">MR Razzano</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="White, Sc" uniqKey="White S">SC White</name></author><author><name sortKey="Rudolph, Dj" uniqKey="Rudolph D">DJ Rudolph</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="White, Sc" uniqKey="White S">SC White</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Aaron, Je" uniqKey="Aaron J">JE Aaron</name></author><author><name sortKey="Shore, Pa" uniqKey="Shore P">PA Shore</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Chappard, D" uniqKey="Chappard D">D Chappard</name></author><author><name sortKey="Guggenbuhl, P" uniqKey="Guggenbuhl P">P Guggenbuhl</name></author><author><name sortKey="Legrand, E" uniqKey="Legrand E">E Legrand</name></author><author><name sortKey="Basle, Mf" uniqKey="Basle M">MF Baslé</name></author><author><name sortKey="Audran, M" uniqKey="Audran M">M Audran</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Ludlow, Jb" uniqKey="Ludlow J">JB Ludlow</name></author><author><name sortKey="Gates, W" uniqKey="Gates W">W Gates</name></author><author><name sortKey="Nason, R" uniqKey="Nason R">R Nason</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jonasson, G" uniqKey="Jonasson G">G Jonasson</name></author><author><name sortKey="Bankvall, G" uniqKey="Bankvall G">G Bankvall</name></author><author><name sortKey="Kiliaridis, S" uniqKey="Kiliaridis S">S Kiliaridis</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Grondahl, K" uniqKey="Grondahl K">K Gröndahl</name></author><author><name sortKey="Sunden, S" uniqKey="Sunden S">S Sundén</name></author><author><name sortKey="Grondahl, Hg" uniqKey="Grondahl H">HG Gröndahl</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Benn, Dk" uniqKey="Benn D">DK Benn</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Leonhardt, A" uniqKey="Leonhardt A">A Leonhardt</name></author><author><name sortKey="Grondahl, K" uniqKey="Grondahl K">K Gröndahl</name></author><author><name sortKey="Bergstrom, C" uniqKey="Bergstrom C">C Bergström</name></author><author><name sortKey="Lekholm, U" uniqKey="Lekholm U">U Lekholm</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Borg, E" uniqKey="Borg E">E Borg</name></author><author><name sortKey="Grondahl, K" uniqKey="Grondahl K">K Gröndahl</name></author><author><name sortKey="Persson, Lg" uniqKey="Persson L">LG Persson</name></author><author><name sortKey="Grondahl, Hg" uniqKey="Grondahl H">HG Gröndahl</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wennstrom, Jl" uniqKey="Wennstrom J">JL Wennström</name></author><author><name sortKey="Ekestubbe, A" uniqKey="Ekestubbe A">A Ekestubbe</name></author><author><name sortKey="Grondahl, K" uniqKey="Grondahl K">K Gröndahl</name></author><author><name sortKey="Karlsson, S" uniqKey="Karlsson S">S Karlsson</name></author><author><name sortKey="Lindhe, J" uniqKey="Lindhe J">J Lindhe</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Frost, Hm" uniqKey="Frost H">HM Frost</name></author></analytic></biblStruct></listBibl></div1></back></TEI><pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Imaging Sci Dent</journal-id><journal-id journal-id-type="iso-abbrev">Imaging Sci Dent</journal-id><journal-id journal-id-type="publisher-id">ISD</journal-id><journal-title-group><journal-title>Imaging Science in Dentistry</journal-title></journal-title-group><issn pub-type="ppub">2233-7822</issn><issn pub-type="epub">2233-7830</issn><publisher><publisher-name>Korean Academy of Oral and Maxillofacial Radiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">24944962</article-id><article-id pub-id-type="pmc">4061296</article-id><article-id pub-id-type="doi">10.5624/isd.2014.44.2.129</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Article</subject></subj-group></article-categories><title-group><article-title>Assessment of trabecular bone changes around endosseous implants using image analysis techniques: A preliminary study</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>El Zuki</surname><given-names>Mervet</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author" corresp="yes"><name><surname>Omami</surname><given-names>Galal</given-names></name><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author"><name><surname>Horner</surname><given-names>Keith</given-names></name><xref ref-type="aff" rid="A3">3</xref></contrib></contrib-group><aff id="A1"><label>1</label>Department of Oral Medicine and Radiology, Benghazi University College of Dentistry, Benghazi, Libya.</aff><aff id="A2"><label>2</label>Oral Diagnosis and Polyclinics, Faculty of Dentistry, The University of Hong Kong, Hong Kong.</aff><aff id="A3"><label>3</label>Department of Oral Radiology, University Dental Hospital of Manchester, Manchester, United Kingdom.</aff><author-notes><corresp>Correspondence to: Dr. Galal Omami. Oral Diagnosis and Polyclinics, Faculty of Dentistry, The University of Hong Kong, 1B/F, Prince Philip Dental Hospital, 34 Hospital Road, Hong Kong. Tel) 852-2859-0403, Fax) 852-2559-4194, <email>jellodent@yahoo.com</email></corresp></author-notes><pub-date pub-type="ppub"><month>6</month><year>2014</year></pub-date><pub-date pub-type="epub"><day>11</day><month>6</month><year>2014</year></pub-date><volume>44</volume><issue>2</issue><fpage>129</fpage><lpage>135</lpage><history><date date-type="received"><day>09</day><month>11</month><year>2013</year></date><date date-type="rev-recd"><day>13</day><month>2</month><year>2014</year></date><date date-type="accepted"><day>22</day><month>2</month><year>2014</year></date></history><permissions><copyright-statement>Copyright © 2014 by Korean Academy of Oral and Maxillofacial Radiology</copyright-statement><copyright-year>2014</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/">http://creativecommons.org/licenses/by-nc/3.0/</ext-link>) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><sec><title>Purpose</title><p>The objective of this study was to assess the trabecular bone changes that occurred around functional endosseous dental implants by means of radiographic image analysis techniques.</p></sec><sec><title>Materials and Methods</title><p>Immediate preoperative and postoperative periapical radiographs of de-identified implant patients at the University Dental Hospital of Manchester were retrieved, screened for specific inclusion criteria, digitized, and quantified for structural elements of the trabecular bone around the endosseous implants, by using image analysis techniques. Data were analyzed using SPSS version 11.5. P values of less than 0.05 were considered statistically significant.</p></sec><sec><title>Results</title><p>A total of 12 implants from 11 patients were selected for the study, and 26 regions of interest were obtained. There was a significant increase in the bone area in terms of the mean distance between nodes (p=0.006) and a significant decrease in the marrow area in terms of the bone area (p=0.006) and the length of marrow spaces (p=0.032).</p></sec><sec><title>Conclusion</title><p>It appeared that the bone around the implant underwent remodeling that resulted in a net increase in bone after implant placement.</p></sec></abstract><kwd-group><kwd>Dental Implants</kwd><kwd>Bone and Bones</kwd><kwd>Computer-Assisted Image Analysis</kwd></kwd-group></article-meta></front><floats-group><fig id="F1" orientation="portrait" position="float"><label>Fig. 1</label><caption><p>Digitization, selection, and cropping of the images. (a) A periapical radiograph is digitized by a scanner using an 8-bit gray scale and a resolution of 1200 dpi. (b) A magnified region of interest (ROI) of 150×150 pixels in the tagged image file (TIF) format below the root apex is cropped by Adobe Photoshop Elements version 3. (c) A magnified ROI of 150×75 pixels in the TIF at the mesial aspect of the root apex. (d) A magnified ROI of 150×75 pixels in the TIF format at the distal aspect of the root apex.</p></caption><graphic xlink:href="isd-44-129-g001"></graphic></fig><fig id="F2" orientation="portrait" position="float"><label>Fig. 2</label><caption><p>The images are the procedures for image digitization, optimization, and analysis (marrow).</p></caption><graphic xlink:href="isd-44-129-g002"></graphic></fig><fig id="F3" orientation="portrait" position="float"><label>Fig. 3</label><caption><p>Inverted image is analyzed (trabecular) using Win TAS for the images shown in <xref ref-type="fig" rid="F2">Fig. 2</xref>.</p></caption><graphic xlink:href="isd-44-129-g003"></graphic></fig><table-wrap id="T1" orientation="portrait" position="float"><label>Table 1</label><caption><p>Parallel plate parameters or histomorphometric variables as listed in the data printout from Win TAS</p></caption><graphic xlink:href="isd-44-129-i001"></graphic></table-wrap><table-wrap id="T2" orientation="portrait" position="float"><label>Table 2</label><caption><p>Cases selected for the study</p></caption><graphic xlink:href="isd-44-129-i002"></graphic><table-wrap-foot><fn><p>F: female, M: male, Rt: right side, Lt: left side, Max: maxillary, CI: central incisor, LI: lateral incisor, C: canine, PM1: first premolar, PM2: second premolar, M1: first molar</p></fn></table-wrap-foot></table-wrap><table-wrap id="T3" orientation="portrait" position="float"><label>Table 3</label><caption><p>A comparison between the mean "bone" data from the first (baseline) and the second (follow-up) radiographs (n=11)</p></caption><graphic xlink:href="isd-44-129-i003"></graphic><table-wrap-foot><fn><p>Mean at baseline, the mean of the first set of radiographs at the time of inserting the implant; mean at follow-up, the mean of the second set of radiographs at the time of making the implant functional; NNd, node number; NTm, terminus number; BAr, bone area; BPm, bone perimeter; TbWi, trabecular width; TbN, trabecular number; TbSp, trabecular separation; BS3d, bone surface; SDn, surface density; mean Nd-Nd, mean distance between nodes; mean Tm-Tm, mean distance between terminals; mean Tm-Nd, mean distance between terminal and node; TbLe, trabecular length</p></fn></table-wrap-foot></table-wrap><table-wrap id="T4" orientation="portrait" position="float"><label>Table 4</label><caption><p>A comparison between the mean "marrow" data from the first (baseline) and the second (follow-up) radiographs (n=11)</p></caption><graphic xlink:href="isd-44-129-i004"></graphic><table-wrap-foot><fn><p>Mean at baseline: mean of the first set of radiographs at the time of inserting the implant. Mean at follow-up: mean of the second set of radiographs at the time of making the implant functional. NNd: node number. NTm: terminus number. BAr: bone area. BPm: bone perimeter. TbWi: trabecular width. TbN: trabecular number. TbSp: trabecular separation. BS3d: bone surface. SDn: surface density. Mean Nd-Nd: mean distance between nodes. Mean Tm-Tm: mean distance between terminals. Mean Tm-Nd: mean distance between terminal and node. TbLe: trabecular length</p></fn></table-wrap-foot></table-wrap></floats-group></pmc><affiliations><list><country><li>Hong Kong</li><li>Libye</li><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Grand Manchester</li></region><settlement><li>Manchester</li></settlement></list><tree><country name="Libye"><noRegion><name sortKey="El Zuki, Mervet" sort="El Zuki, Mervet" uniqKey="El Zuki M" first="Mervet" last="El Zuki">Mervet El Zuki</name></noRegion></country><country name="Hong Kong"><noRegion><name sortKey="Omami, Galal" sort="Omami, Galal" uniqKey="Omami G" first="Galal" last="Omami">Galal Omami</name></noRegion></country><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Horner, Keith" sort="Horner, Keith" uniqKey="Horner K" first="Keith" last="Horner">Keith Horner</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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