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Laser welding and syncristallization techniques comparison: “Ex vivo” study

Identifieur interne : 000641 ( Pmc/Checkpoint ); précédent : 000640; suivant : 000642

Laser welding and syncristallization techniques comparison: “Ex vivo” study

Auteurs : Carlo Fornaini ; Marco Meleti ; Paolo Vescovi ; Elisabetta Merigo ; Jean-Paul Rocca

Source :

RBID : PMC:3916668

Abstract

Background and aims: Stabilization of implant abutments through electric impulses at high voltage for a very short time (electrowelding) was developed in the Eighties.

In 2009, the same procedure was performed through the use of laser (laser welding)

The aim of this study is to compare electrowelding and laser welding for intra-oral implant abutments stabilization on “ex vivo models” (pig jaws).

Materials and methods: Six bars were welded with two different devices (Nd:YAG laser and Electrowelder) to eighteen titanium implant abutment inserted in three pig jaws. During the welding process, thermal increase was recorded, through the use of k-thermocouples, in the bone close to the implants.

The strength of the welded joints was evaluated by a traction test after the removal of the implants. For temperature measurements a descriptive analysis and for traction test “values unpaired t test with Welch's correction” were performed: the significance level was set at P<0.05.

Results: Laser welding gives a lower thermal increase than Electrowelding at the bone close to implants (Mean: 1.97 and 5.27); the strength of laser welded joints was higher than that of Electrowelding even if nor statistically significant. (Mean: 184.75 and 168.29)

Conclusion: Electrowelding seems to have no advantages, in term of thermal elevation and strength, while laser welding may be employed to connect titanium implants for immediate load without risks of thermal damage at surrounding tissues.


Url:
DOI: 10.5978/islsm.13-OR-23
PubMed: 24511205
PubMed Central: 3916668


Affiliations:

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PMC:3916668

Le document en format XML

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<title level="j">Laser Therapy</title>
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<div type="abstract" xml:lang="en">
<p>
<bold>Background and aims:</bold>
Stabilization of implant abutments through electric impulses at high voltage for a very short time (electrowelding) was developed in the Eighties.</p>
<p>In 2009, the same procedure was performed through the use of laser (laser welding)</p>
<p>The aim of this study is to compare electrowelding and laser welding for intra-oral implant abutments stabilization on “ex vivo models” (pig jaws).</p>
<p>
<bold>Materials and methods:</bold>
Six bars were welded with two different devices (Nd:YAG laser and Electrowelder) to eighteen titanium implant abutment inserted in three pig jaws. During the welding process, thermal increase was recorded, through the use of k-thermocouples, in the bone close to the implants.</p>
<p>The strength of the welded joints was evaluated by a traction test after the removal of the implants. For temperature measurements a descriptive analysis and for traction test “values unpaired t test with Welch's correction” were performed: the significance level was set at P<0.05.</p>
<p>
<bold>Results:</bold>
Laser welding gives a lower thermal increase than Electrowelding at the bone close to implants (Mean: 1.97 and 5.27); the strength of laser welded joints was higher than that of Electrowelding even if nor statistically significant. (Mean: 184.75 and 168.29)</p>
<p>
<bold>Conclusion:</bold>
Electrowelding seems to have no advantages, in term of thermal elevation and strength, while laser welding may be employed to connect titanium implants for immediate load without risks of thermal damage at surrounding tissues.</p>
</div>
</front>
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<journal-id journal-id-type="nlm-ta">Laser Ther</journal-id>
<journal-id journal-id-type="iso-abbrev">Laser Ther</journal-id>
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<journal-id journal-id-type="hwp">islsm</journal-id>
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<journal-title>Laser Therapy</journal-title>
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<issn pub-type="ppub">0898-5901</issn>
<issn pub-type="epub">1884-7269</issn>
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<publisher-name>Japan Medical Laser Laboratory</publisher-name>
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<article-id pub-id-type="doi">10.5978/islsm.13-OR-23</article-id>
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<subject>Original Articles</subject>
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</article-categories>
<title-group>
<article-title>Laser welding and syncristallization techniques comparison: “Ex vivo” study</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Fornaini</surname>
<given-names>Carlo</given-names>
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<xref ref-type="aff" rid="a2">2</xref>
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<surname>Meleti</surname>
<given-names>Marco</given-names>
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<name>
<surname>Vescovi</surname>
<given-names>Paolo</given-names>
</name>
<xref ref-type="aff" rid="a1">1</xref>
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<name>
<surname>Merigo</surname>
<given-names>Elisabetta</given-names>
</name>
<xref ref-type="aff" rid="a1">1</xref>
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<contrib contrib-type="author">
<name>
<surname>Rocca</surname>
<given-names>Jean-Paul</given-names>
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<aff id="a1">
<label>1:</label>
Dental School, Faculty of Medicine, University of Parma</aff>
<aff id="a2">
<label>2:</label>
UFR Odontologie, Université de Nice Sophia Antipolis</aff>
</contrib-group>
<author-notes>
<corresp>
<bold>
<italic>Addressee for Correspondence:</italic>
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Fornaini Carlo MD, DMD, MSc,
<institution>Oral Medicine and Laser-Assisted Surgery Unit, Dental School, Faculty of Medicine, University of Parma.</institution>
,
<addr-line>Via Varini 10, 29017 Fiorenzuola d'Arda PIACENZA</addr-line>
(
<country>Italy</country>
), Tel: 0039 0523 982667 Fax: 0039 0523 242109, Email:
<email>carlo@fornainident.it</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub">
<day>30</day>
<month>12</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="pmc-release">
<day>30</day>
<month>6</month>
<year>2014</year>
</pub-date>
<pmc-comment> PMC Release delay is 6 months and 0 days and was based on the . </pmc-comment>
<volume>22</volume>
<issue>4</issue>
<fpage>275</fpage>
<lpage>281</lpage>
<history>
<date date-type="received">
<day>4</day>
<month>10</month>
<year>2013</year>
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<date date-type="accepted">
<day>5</day>
<month>11</month>
<year>2013</year>
</date>
</history>
<permissions>
<copyright-statement>2013, Japan Medical Laser Laboratory</copyright-statement>
<copyright-year>2013</copyright-year>
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<abstract>
<p>
<bold>Background and aims:</bold>
Stabilization of implant abutments through electric impulses at high voltage for a very short time (electrowelding) was developed in the Eighties.</p>
<p>In 2009, the same procedure was performed through the use of laser (laser welding)</p>
<p>The aim of this study is to compare electrowelding and laser welding for intra-oral implant abutments stabilization on “ex vivo models” (pig jaws).</p>
<p>
<bold>Materials and methods:</bold>
Six bars were welded with two different devices (Nd:YAG laser and Electrowelder) to eighteen titanium implant abutment inserted in three pig jaws. During the welding process, thermal increase was recorded, through the use of k-thermocouples, in the bone close to the implants.</p>
<p>The strength of the welded joints was evaluated by a traction test after the removal of the implants. For temperature measurements a descriptive analysis and for traction test “values unpaired t test with Welch's correction” were performed: the significance level was set at P<0.05.</p>
<p>
<bold>Results:</bold>
Laser welding gives a lower thermal increase than Electrowelding at the bone close to implants (Mean: 1.97 and 5.27); the strength of laser welded joints was higher than that of Electrowelding even if nor statistically significant. (Mean: 184.75 and 168.29)</p>
<p>
<bold>Conclusion:</bold>
Electrowelding seems to have no advantages, in term of thermal elevation and strength, while laser welding may be employed to connect titanium implants for immediate load without risks of thermal damage at surrounding tissues.</p>
</abstract>
<kwd-group kwd-group-type="author">
<kwd>Nd: YAG laser</kwd>
<kwd>welding</kwd>
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<kwd>implants</kwd>
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<name sortKey="Meleti, Marco" sort="Meleti, Marco" uniqKey="Meleti M" first="Marco" last="Meleti">Marco Meleti</name>
<name sortKey="Merigo, Elisabetta" sort="Merigo, Elisabetta" uniqKey="Merigo E" first="Elisabetta" last="Merigo">Elisabetta Merigo</name>
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<name sortKey="Vescovi, Paolo" sort="Vescovi, Paolo" uniqKey="Vescovi P" first="Paolo" last="Vescovi">Paolo Vescovi</name>
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