Effect of screw access hole preparation on fracture load of implant-supported zirconia-based crowns: an in vitro study
Identifieur interne : 003107 ( Pmc/Curation ); précédent : 003106; suivant : 003108Effect of screw access hole preparation on fracture load of implant-supported zirconia-based crowns: an in vitro study
Auteurs : Hadi Mokhtarpour [Iran] ; Reza Eftekhar Ashtiani [Iran] ; Minoo Mahshid [Iran] ; Farhad Tabatabaian [Iran] ; Marzieh Alikhasi [Iran]Source :
- Journal of Dental Research, Dental Clinics, Dental Prospects [ 2008-210X ] ; 2016.
Abstract
Url:
DOI: 10.15171/joddd.2016.029
PubMed: 27651885
PubMed Central: 5025220
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Effect of screw access hole preparation on fracture load of implant-supported zirconia-based crowns: an <italic>in vitro</italic> study</title><author><name sortKey="Mokhtarpour, Hadi" sort="Mokhtarpour, Hadi" uniqKey="Mokhtarpour H" first="Hadi" last="Mokhtarpour">Hadi Mokhtarpour</name><affiliation wicri:level="1"><nlm:aff id="A01">Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Sari University of Medical Sciences, Sari, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Sari University of Medical Sciences, Sari</wicri:regionArea></affiliation></author><author><name sortKey="Eftekhar Ashtiani, Reza" sort="Eftekhar Ashtiani, Reza" uniqKey="Eftekhar Ashtiani R" first="Reza" last="Eftekhar Ashtiani">Reza Eftekhar Ashtiani</name><affiliation wicri:level="1"><nlm:aff id="A02">Assistant Professor, Department of Dental Technology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Assistant Professor, Department of Dental Technology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran</wicri:regionArea></affiliation></author><author><name sortKey="Mahshid, Minoo" sort="Mahshid, Minoo" uniqKey="Mahshid M" first="Minoo" last="Mahshid">Minoo Mahshid</name><affiliation wicri:level="1"><nlm:aff id="A03">Professor, Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Professor, Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran</wicri:regionArea></affiliation></author><author><name sortKey="Tabatabaian, Farhad" sort="Tabatabaian, Farhad" uniqKey="Tabatabaian F" first="Farhad" last="Tabatabaian">Farhad Tabatabaian</name><affiliation wicri:level="1"><nlm:aff id="A04">Assistant Professor, Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Assistant Professor, Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran</wicri:regionArea></affiliation></author><author><name sortKey="Alikhasi, Marzieh" sort="Alikhasi, Marzieh" uniqKey="Alikhasi M" first="Marzieh" last="Alikhasi">Marzieh Alikhasi</name><affiliation wicri:level="1"><nlm:aff id="A05">Associate Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Associate Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">27651885</idno><idno type="pmc">5025220</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5025220</idno><idno type="RBID">PMC:5025220</idno><idno type="doi">10.15171/joddd.2016.029</idno><date when="2016">2016</date><idno type="wicri:Area/Pmc/Corpus">003107</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">003107</idno><idno type="wicri:Area/Pmc/Curation">003107</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">003107</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Effect of screw access hole preparation on fracture load of implant-supported zirconia-based crowns: an <italic>in vitro</italic> study</title><author><name sortKey="Mokhtarpour, Hadi" sort="Mokhtarpour, Hadi" uniqKey="Mokhtarpour H" first="Hadi" last="Mokhtarpour">Hadi Mokhtarpour</name><affiliation wicri:level="1"><nlm:aff id="A01">Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Sari University of Medical Sciences, Sari, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Sari University of Medical Sciences, Sari</wicri:regionArea></affiliation></author><author><name sortKey="Eftekhar Ashtiani, Reza" sort="Eftekhar Ashtiani, Reza" uniqKey="Eftekhar Ashtiani R" first="Reza" last="Eftekhar Ashtiani">Reza Eftekhar Ashtiani</name><affiliation wicri:level="1"><nlm:aff id="A02">Assistant Professor, Department of Dental Technology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Assistant Professor, Department of Dental Technology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran</wicri:regionArea></affiliation></author><author><name sortKey="Mahshid, Minoo" sort="Mahshid, Minoo" uniqKey="Mahshid M" first="Minoo" last="Mahshid">Minoo Mahshid</name><affiliation wicri:level="1"><nlm:aff id="A03">Professor, Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Professor, Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran</wicri:regionArea></affiliation></author><author><name sortKey="Tabatabaian, Farhad" sort="Tabatabaian, Farhad" uniqKey="Tabatabaian F" first="Farhad" last="Tabatabaian">Farhad Tabatabaian</name><affiliation wicri:level="1"><nlm:aff id="A04">Assistant Professor, Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Assistant Professor, Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran</wicri:regionArea></affiliation></author><author><name sortKey="Alikhasi, Marzieh" sort="Alikhasi, Marzieh" uniqKey="Alikhasi M" first="Marzieh" last="Alikhasi">Marzieh Alikhasi</name><affiliation wicri:level="1"><nlm:aff id="A05">Associate Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Associate Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran</wicri:regionArea></affiliation></author></analytic><series><title level="j">Journal of Dental Research, Dental Clinics, Dental Prospects</title><idno type="ISSN">2008-210X</idno><idno type="eISSN">2008-2118</idno><imprint><date when="2016">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><bold><italic>Background.</italic></bold> Fracture load of implant-supported restorations is an important factor in clinical success. This study evaluated the effect of two techniques for screw access hole preparation on the fracture load of cement-screw-retained implant-supported zirconia-based crowns.</p><p><bold><italic>Methods.</italic></bold> Thirty similar cement-screw-retained implant-supported zirconia-based maxillary central incisor crowns were evaluated in three groups of 10. Group NH: with no screw access holes for the control; Group HBS: with screw access holes prepared with a machine before zirconia sintering; Group HAS: with screw access holes prepared manually after zirconia sintering. In group HBS, the access holes were virtually designed and prepared by a computer-assisted design/computer-assisted manufacturing system. In group HAS, the access holes were manually prepared after zirconia sintering using a diamond bur. The dimensions of the screw access holes were equal in both groups. The crowns were cemented onto same-size abutments and were then subjected to thermocycling. The fracture load values of the crowns were measured using a universal testing machine. Data were analyzed with ANOVA and Tukey test (P < 0.05).</p><p><bold><italic>Results.</italic></bold> The mean fracture load value for the group NH was 888.37 ± 228.92 N, which was the highest among the groups, with a significant difference (P < 0.0001). The fracture load values were 610.48 ± 125.02 N and 496.74 ± 104.10 Nin the HBS and HAS groups, respectively, with no significant differences (P = 0.44).</p><p><bold><italic>Conclusion.</italic></bold> Both techniques used for preparation of screw access holes in implant-supported zirconia-based crowns decreased the fracture load.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Singer, A" uniqKey="Singer A">A Singer</name></author><author><name sortKey="Serfaty, V" uniqKey="Serfaty V">V Serfaty</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Howe, L" uniqKey="Howe L">L Howe</name></author><author><name sortKey="Palmer, P" uniqKey="Palmer P">P Palmer</name></author><author><name sortKey="Barrett, V" uniqKey="Barrett V">V Barrett</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Guichet, Dl" uniqKey="Guichet D">DL Guichet</name></author><author><name sortKey="Caputo, Aa" uniqKey="Caputo A">AA Caputo</name></author><author><name sortKey="Choi, H" uniqKey="Choi H">H Choi</name></author><author><name sortKey="Sorensen, Ja" uniqKey="Sorensen J">JA Sorensen</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Cho, Sc" uniqKey="Cho S">SC Cho</name></author><author><name sortKey="Small, Pn" uniqKey="Small P">PN Small</name></author><author><name sortKey="Elian, N" uniqKey="Elian N">N Elian</name></author><author><name sortKey="Tarnow, D" uniqKey="Tarnow D">D Tarnow</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Rajan, M" uniqKey="Rajan M">M Rajan</name></author><author><name sortKey="Gunaseelan, R" uniqKey="Gunaseelan R">R Gunaseelan</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jung, Re" uniqKey="Jung R">RE Jung</name></author><author><name sortKey="Pjeturesson, Be" uniqKey="Pjeturesson B">BE Pjeturesson</name></author><author><name sortKey="Glauser, R" uniqKey="Glauser R">R Glauser</name></author><author><name sortKey="Zembic, A" uniqKey="Zembic A">A Zembic</name></author><author><name sortKey="Zwahlen, M" uniqKey="Zwahlen M">M Zwahlen</name></author><author><name sortKey="Lang, Np" uniqKey="Lang N">NP Lang</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Chee, Ww" uniqKey="Chee W">WW Chee</name></author><author><name sortKey="Torbati, A" uniqKey="Torbati A">A Torbati</name></author><author><name sortKey="Albouy, Jp" uniqKey="Albouy J">JP Albouy</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Okamoto, M" uniqKey="Okamoto M">M Okamoto</name></author><author><name sortKey="Minagi, S" uniqKey="Minagi S">S Minagi</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Mcglumphy, Ea" uniqKey="Mcglumphy E">EA McGlumphy</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Ganor, Y" uniqKey="Ganor Y">Y Ganor</name></author><author><name sortKey="Indig, B" uniqKey="Indig B">B Indig</name></author><author><name sortKey="Gross, M" uniqKey="Gross M">M Gross</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Baige, Mr" uniqKey="Baige M">MR Baige</name></author><author><name sortKey="Rajan, J" uniqKey="Rajan J">J Rajan</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Rojas Vizcaya, F" uniqKey="Rojas Vizcaya F">F Rojas-Vizcaya</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Worni, A" uniqKey="Worni A">A Worni</name></author><author><name sortKey="Kolgeci, L" uniqKey="Kolgeci L">L Kolgeci</name></author><author><name sortKey="Rentsch Kollar, A" uniqKey="Rentsch Kollar A">A Rentsch-Kollar</name></author><author><name sortKey="Katsoulis, J" uniqKey="Katsoulis J">J Katsoulis</name></author><author><name sortKey="Mericske Stern, R" uniqKey="Mericske Stern R">R Mericske-Stern</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Denry, Il" uniqKey="Denry I">IL Denry</name></author><author><name sortKey="Holloway, Ja" uniqKey="Holloway J">JA Holloway</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Torrado, E" uniqKey="Torrado E">E Torrado</name></author><author><name sortKey="Ercoli, C" uniqKey="Ercoli C">C Ercoli</name></author><author><name sortKey="Al Mardini X0a, M X0a" uniqKey="Al Mardini X0a M">M
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<front><journal-meta><journal-id journal-id-type="nlm-ta">J Dent Res Dent Clin Dent Prospects</journal-id><journal-id journal-id-type="iso-abbrev">J Dent Res Dent Clin Dent Prospects</journal-id><journal-id journal-id-type="publisher-id">J Dent Res Dent Clin Dent Prospects</journal-id><journal-id journal-id-type="pmc">JODDD</journal-id><journal-id journal-id-type="publisher-id">TBZMED</journal-id><journal-title-group><journal-title>Journal of Dental Research, Dental Clinics, Dental Prospects</journal-title></journal-title-group><issn pub-type="ppub">2008-210X</issn><issn pub-type="epub">2008-2118</issn><issn-l>2008-210X</issn-l><publisher><publisher-name>Tabriz University of Medical Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">27651885</article-id><article-id pub-id-type="pmc">5025220</article-id><article-id pub-id-type="doi">10.15171/joddd.2016.029</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Article</subject></subj-group></article-categories><title-group><article-title>Effect of screw access hole preparation on fracture load of implant-supported zirconia-based crowns: an <italic>in vitro</italic> study</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Mokhtarpour</surname><given-names>Hadi</given-names></name><xref ref-type="aff" rid="A01"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Eftekhar Ashtiani</surname><given-names>Reza</given-names></name><xref ref-type="aff" rid="A02"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Mahshid</surname><given-names>Minoo</given-names></name><xref ref-type="aff" rid="A03"><sup>3</sup></xref></contrib><contrib contrib-type="author"><name><surname>Tabatabaian</surname><given-names>Farhad</given-names></name><xref ref-type="aff" rid="A04"><sup>4</sup></xref><xref rid="COR1" ref-type="corresp">*</xref></contrib><contrib contrib-type="author"><name><surname>Alikhasi</surname><given-names>Marzieh</given-names></name><xref ref-type="aff" rid="A05"><sup>5</sup></xref></contrib></contrib-group><aff id="A01"><sup>1</sup>Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Sari University of Medical Sciences, Sari, Iran</aff><aff id="A02"><sup>2</sup>Assistant Professor, Department of Dental Technology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</aff><aff id="A03"><sup>3</sup>Professor, Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</aff><aff id="A04"><sup>4</sup>Assistant Professor, Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</aff><aff id="A05"><sup>5</sup>Associate Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran</aff><author-notes><corresp id="COR1"><label>*</label>Corresponding Author;E-mail:
<email>f_tabatabaian@yahoo.com</email></corresp></author-notes><pub-date pub-type="ppub"><season>Summer</season><year>2016</year></pub-date><pub-date pub-type="epub"><day>17</day><month>8</month><year>2016</year></pub-date><volume>10</volume><issue>3</issue><fpage>181</fpage><lpage>188</lpage><history><date date-type="received"><day>04</day><month>2</month><year>2016</year></date><date date-type="accepted"><day>19</day><month>7</month><year>2016</year></date></history><permissions><copyright-statement>© 2016 Mokhtarpour et al.</copyright-statement><copyright-year>2016</copyright-year><license xlink:href="http://creativecommons.org/licenses/by/4.0/" license-type="open-access"><license-p>This is an Open Access article published and distributed by Tabriz University of Medical Sciences under the terms of the Creative Commons Attribution License (<uri xlink:href="http://creativecommons.org/licenses/by/4.0">http://creativecommons.org/licenses/by/4.0</uri>), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><self-uri xlink:href="http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd">This article is available from: http://dentistry.tbzmed.ac.ir/joddd</self-uri><abstract><p><bold><italic>Background.</italic></bold> Fracture load of implant-supported restorations is an important factor in clinical success. This study evaluated the effect of two techniques for screw access hole preparation on the fracture load of cement-screw-retained implant-supported zirconia-based crowns.</p><p><bold><italic>Methods.</italic></bold> Thirty similar cement-screw-retained implant-supported zirconia-based maxillary central incisor crowns were evaluated in three groups of 10. Group NH: with no screw access holes for the control; Group HBS: with screw access holes prepared with a machine before zirconia sintering; Group HAS: with screw access holes prepared manually after zirconia sintering. In group HBS, the access holes were virtually designed and prepared by a computer-assisted design/computer-assisted manufacturing system. In group HAS, the access holes were manually prepared after zirconia sintering using a diamond bur. The dimensions of the screw access holes were equal in both groups. The crowns were cemented onto same-size abutments and were then subjected to thermocycling. The fracture load values of the crowns were measured using a universal testing machine. Data were analyzed with ANOVA and Tukey test (P < 0.05).</p><p><bold><italic>Results.</italic></bold> The mean fracture load value for the group NH was 888.37 ± 228.92 N, which was the highest among the groups, with a significant difference (P < 0.0001). The fracture load values were 610.48 ± 125.02 N and 496.74 ± 104.10 Nin the HBS and HAS groups, respectively, with no significant differences (P = 0.44).</p><p><bold><italic>Conclusion.</italic></bold> Both techniques used for preparation of screw access holes in implant-supported zirconia-based crowns decreased the fracture load.</p></abstract><kwd-group><kwd>Crown</kwd><kwd>dental implant</kwd><kwd>implant-supported dental prosthesis</kwd><kwd>zirconia</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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