Physicochemical and Antibacterial Characterization of a Novel Fluorapatite Coating
Identifieur interne : 000533 ( Pmc/Checkpoint ); précédent : 000532; suivant : 000534Physicochemical and Antibacterial Characterization of a Novel Fluorapatite Coating
Auteurs : Ahmed Alhilou [Royaume-Uni] ; Thuy Do [Royaume-Uni] ; Laith Mizban ; Brian H. Clarkson [États-Unis] ; David J. Wood ; Maria G. Katsikogianni [Royaume-Uni]Source :
- ACS Omega [ 2470-1343 ] ; 2016.
Abstract
Peri-implantitis remains the major impediment to the long-term use of dental implants. With increasing concern over the growth in antibiotic resistance, there is considerable interest in the preparation of antimicrobial dental implant coatings that also induce osseointegration. One such potential coating material is fluorapatite (FA). The aim of this study was to relate the antibacterial effectiveness of FA coatings against pathogens implicated in peri-implantitis to the physicochemical properties of the coating. Ordered and disordered FA coatings were produced on the under and upper surfaces of stainless steel (SS) discs, respectively, using a hydrothermal method. Surface charge, surface roughness, wettability, and fluoride release were measured for each coating. Surface chemistry was assessed using X-ray photoelectron spectroscopy and FA crystallinity using X-ray diffraction. Antibacterial activity against periodontopathogens was assessed in vitro using viable counts, confocal microscopy, and scanning electron microscopy (SEM). SEM showed that the hydrothermal method produced FA coatings that were predominately aligned perpendicular to the SS substrate or disordered FA coatings consisting of randomly aligned rodlike crystals. Both FA coatings significantly reduced the growth of all examined bacterial strains in comparison to the control. The FA coatings, especially the disordered ones, presented significantly lower charge, greater roughness, and higher area when compared to the control, enhancing bacteria–material interactions and therefore bacterial deactivation by fluoride ions. The ordered FA layer reduced not only bacterial viability but adhesion too. The ordered FA crystals produced as a potential novel implant coating showed significant antibacterial activity against bacteria implicated in peri-implantitis, which could be explained by a detailed understanding of their physicochemical properties.
Url:
DOI: 10.1021/acsomega.6b00080
PubMed: 27656690
PubMed Central: 5026462
Affiliations:
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, Clarendon Way, Leeds LS2 9LU, West Yorkshire,<country>U.K.</country>
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<author><name sortKey="Do, Thuy" sort="Do, Thuy" uniqKey="Do T" first="Thuy" last="Do">Thuy Do</name>
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<country xml:lang="fr">États-Unis</country>
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<author><name sortKey="Katsikogianni, Maria G" sort="Katsikogianni, Maria G" uniqKey="Katsikogianni M" first="Maria G." last="Katsikogianni">Maria G. Katsikogianni</name>
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<front><div type="abstract" xml:lang="en"><p content-type="toc-graphic"><graphic xlink:href="ao-2016-00080b_0009" id="ab-tgr1"></graphic>
</p>
<p>Peri-implantitis
remains the major impediment to the long-term
use of dental implants. With increasing concern over the growth in
antibiotic resistance, there is considerable interest in the preparation
of antimicrobial dental implant coatings that also induce osseointegration.
One such potential coating material is fluorapatite (FA). The aim
of this study was to relate the antibacterial effectiveness of FA
coatings against pathogens implicated in peri-implantitis to the physicochemical
properties of the coating. Ordered and disordered FA coatings were
produced on the under and upper surfaces of stainless steel (SS) discs,
respectively, using a hydrothermal method. Surface charge, surface
roughness, wettability, and fluoride release were measured for each
coating. Surface chemistry was assessed using X-ray photoelectron
spectroscopy and FA crystallinity using X-ray diffraction. Antibacterial
activity against periodontopathogens was assessed in vitro using viable
counts, confocal microscopy, and scanning electron microscopy (SEM).
SEM showed that the hydrothermal method produced FA coatings that
were predominately aligned perpendicular to the SS substrate or disordered
FA coatings consisting of randomly aligned rodlike crystals. Both
FA coatings significantly reduced the growth of all examined bacterial
strains in comparison to the control. The FA coatings, especially
the disordered ones, presented significantly lower charge, greater
roughness, and higher area when compared to the control, enhancing
bacteria–material interactions and therefore bacterial deactivation
by fluoride ions. The ordered FA layer reduced not only bacterial
viability but adhesion too. The ordered FA crystals produced as a
potential novel implant coating showed significant antibacterial activity
against bacteria implicated in peri-implantitis, which could be explained
by a detailed understanding of their physicochemical properties.</p>
</div>
</front>
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<pmc article-type="research-article" xml:lang="EN"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">ACS Omega</journal-id>
<journal-id journal-id-type="iso-abbrev">ACS Omega</journal-id>
<journal-id journal-id-type="publisher-id">ao</journal-id>
<journal-id journal-id-type="coden">acsodf</journal-id>
<journal-title-group><journal-title>ACS Omega</journal-title>
</journal-title-group>
<issn pub-type="epub">2470-1343</issn>
<publisher><publisher-name>American Chemical Society</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">27656690</article-id>
<article-id pub-id-type="pmc">5026462</article-id>
<article-id pub-id-type="doi">10.1021/acsomega.6b00080</article-id>
<article-categories><subj-group><subject>Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Physicochemical and Antibacterial Characterization
of a Novel Fluorapatite Coating</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" id="ath1"><name><surname>Alhilou</surname>
<given-names>Ahmed</given-names>
</name>
<xref rid="aff1" ref-type="aff">†</xref>
<xref rid="aff1" ref-type="aff">‡</xref>
</contrib>
<contrib contrib-type="author" id="ath2"><name><surname>Do</surname>
<given-names>Thuy</given-names>
</name>
<xref rid="aff1" ref-type="aff">‡</xref>
</contrib>
<contrib contrib-type="author" id="ath3"><name><surname>Mizban</surname>
<given-names>Laith</given-names>
</name>
<xref rid="aff1" ref-type="aff">†</xref>
</contrib>
<contrib contrib-type="author" id="ath4"><name><surname>Clarkson</surname>
<given-names>Brian H.</given-names>
</name>
<xref rid="aff2" ref-type="aff">§</xref>
</contrib>
<contrib contrib-type="author" corresp="yes" id="ath5"><name><surname>Wood</surname>
<given-names>David J.</given-names>
</name>
<xref rid="cor1" ref-type="other">*</xref>
<xref rid="aff1" ref-type="aff">†</xref>
</contrib>
<contrib contrib-type="author" corresp="yes" id="ath6"><name><surname>Katsikogianni</surname>
<given-names>Maria G.</given-names>
</name>
<xref rid="cor2" ref-type="other">*</xref>
<xref rid="aff1" ref-type="aff">†</xref>
<xref rid="aff3" ref-type="aff">∥</xref>
</contrib>
<aff id="aff1"><sup>†</sup>
Biomaterials and Tissue Engineering Research Group and<sup>‡</sup>
Microbiology and Cell Biology Research Group, School of Dentistry,<institution>University of Leeds</institution>
, Clarendon Way, Leeds LS2 9LU, West Yorkshire,<country>U.K.</country>
</aff>
<aff id="aff2"><label>§</label>
Cariology, Restorative Sciences, and Endodontics, School of Dentistry,<institution>University of Michigan</institution>
, Ann Arbor 48109-1078,<country>United States</country>
</aff>
<aff id="aff3"><label>∥</label>
Advanced Materials Engineering, Faculty of Engineering and Informatics,<institution>University of Bradford</institution>
, Bradford BD7 1DP,<country>U.K.</country>
</aff>
</contrib-group>
<author-notes><corresp id="cor1"><label>*</label>
E-mail: <email>d.j.wood@leeds.ac.uk</email>
. Phone: <phone>+44(0)113 343 6192</phone>
(D.J.W.).</corresp>
<corresp id="cor2"><label>*</label>
E-mail: <email>m.katsikogianni@bradford.ac.uk</email>
. Phone: <phone>+44(0)127 423 3741</phone>
(M.G.K.).</corresp>
</author-notes>
<pub-date pub-type="epub"><day>26</day>
<month>08</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="ppub"><day>31</day>
<month>08</month>
<year>2016</year>
</pub-date>
<volume>1</volume>
<issue>2</issue>
<fpage>264</fpage>
<lpage>276</lpage>
<history><date date-type="received"><day>16</day>
<month>06</month>
<year>2016</year>
</date>
<date date-type="accepted"><day>01</day>
<month>08</month>
<year>2016</year>
</date>
</history>
<permissions><copyright-statement>Copyright © 2016 American Chemical Society</copyright-statement>
<copyright-year>2016</copyright-year>
<copyright-holder>American Chemical Society</copyright-holder>
<license><license-p>This is an open access article published under a Creative Commons Attribution (CC-BY) <ext-link ext-link-type="uri" xlink:href="http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html">License</ext-link>
, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.</license-p>
</license>
</permissions>
<abstract><p content-type="toc-graphic"><graphic xlink:href="ao-2016-00080b_0009" id="ab-tgr1"></graphic>
</p>
<p>Peri-implantitis
remains the major impediment to the long-term
use of dental implants. With increasing concern over the growth in
antibiotic resistance, there is considerable interest in the preparation
of antimicrobial dental implant coatings that also induce osseointegration.
One such potential coating material is fluorapatite (FA). The aim
of this study was to relate the antibacterial effectiveness of FA
coatings against pathogens implicated in peri-implantitis to the physicochemical
properties of the coating. Ordered and disordered FA coatings were
produced on the under and upper surfaces of stainless steel (SS) discs,
respectively, using a hydrothermal method. Surface charge, surface
roughness, wettability, and fluoride release were measured for each
coating. Surface chemistry was assessed using X-ray photoelectron
spectroscopy and FA crystallinity using X-ray diffraction. Antibacterial
activity against periodontopathogens was assessed in vitro using viable
counts, confocal microscopy, and scanning electron microscopy (SEM).
SEM showed that the hydrothermal method produced FA coatings that
were predominately aligned perpendicular to the SS substrate or disordered
FA coatings consisting of randomly aligned rodlike crystals. Both
FA coatings significantly reduced the growth of all examined bacterial
strains in comparison to the control. The FA coatings, especially
the disordered ones, presented significantly lower charge, greater
roughness, and higher area when compared to the control, enhancing
bacteria–material interactions and therefore bacterial deactivation
by fluoride ions. The ordered FA layer reduced not only bacterial
viability but adhesion too. The ordered FA crystals produced as a
potential novel implant coating showed significant antibacterial activity
against bacteria implicated in peri-implantitis, which could be explained
by a detailed understanding of their physicochemical properties.</p>
</abstract>
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</article-meta>
</front>
</pmc>
<affiliations><list><country><li>Royaume-Uni</li>
<li>États-Unis</li>
</country>
</list>
<tree><noCountry><name sortKey="Mizban, Laith" sort="Mizban, Laith" uniqKey="Mizban L" first="Laith" last="Mizban">Laith Mizban</name>
<name sortKey="Wood, David J" sort="Wood, David J" uniqKey="Wood D" first="David J." last="Wood">David J. Wood</name>
</noCountry>
<country name="Royaume-Uni"><noRegion><name sortKey="Alhilou, Ahmed" sort="Alhilou, Ahmed" uniqKey="Alhilou A" first="Ahmed" last="Alhilou">Ahmed Alhilou</name>
</noRegion>
<name sortKey="Do, Thuy" sort="Do, Thuy" uniqKey="Do T" first="Thuy" last="Do">Thuy Do</name>
<name sortKey="Katsikogianni, Maria G" sort="Katsikogianni, Maria G" uniqKey="Katsikogianni M" first="Maria G." last="Katsikogianni">Maria G. Katsikogianni</name>
</country>
<country name="États-Unis"><noRegion><name sortKey="Clarkson, Brian H" sort="Clarkson, Brian H" uniqKey="Clarkson B" first="Brian H." last="Clarkson">Brian H. Clarkson</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>
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