Effect of screw access hole preparation on fracture load of implant-supported zirconia-based crowns: an in vitro study
Identifieur interne : 006A47 ( Ncbi/Merge ); précédent : 006A46; suivant : 006A48Effect 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
Links toward previous steps (curation, corpus...)
- to stream Pmc, to step Corpus: 003107
- to stream Pmc, to step Curation: 003107
- to stream Pmc, to step Checkpoint: 000733
Links to Exploration step
PMC:5025220Le document en format XML
<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>
<wicri:noRegion>Sari</wicri:noRegion>
</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>
<wicri:noRegion>Tehran</wicri:noRegion>
</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>
<wicri:noRegion>Tehran</wicri:noRegion>
</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>
<wicri:noRegion>Tehran</wicri:noRegion>
</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>
<wicri:noRegion>Tehran</wicri:noRegion>
</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>
<idno type="wicri:Area/Pmc/Checkpoint">000733</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000733</idno>
<idno type="wicri:Area/Ncbi/Merge">006A47</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>
<wicri:noRegion>Sari</wicri:noRegion>
</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>
<wicri:noRegion>Tehran</wicri:noRegion>
</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>
<wicri:noRegion>Tehran</wicri:noRegion>
</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>
<wicri:noRegion>Tehran</wicri:noRegion>
</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>
<wicri:noRegion>Tehran</wicri:noRegion>
</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
Al Mardini
</name>
</author>
<author><name sortKey="Tallents, Rh" uniqKey="Tallents R">RH Tallents</name>
</author>
<author><name sortKey="Cordaro, L" uniqKey="Cordaro L">L Cordaro</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Al Omari, Wm" uniqKey="Al Omari W">WM Al-Omari</name>
</author>
<author><name sortKey="Shadid, R" uniqKey="Shadid R">R Shadid</name>
</author>
<author><name sortKey="Abu Naba A, L" uniqKey="Abu Naba A L">L Abu-Naba'a</name>
</author>
<author><name sortKey="El Masoud, B" uniqKey="El Masoud B">B El Masoud</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Derafshi, R" uniqKey="Derafshi R">R Derafshi</name>
</author>
<author><name sortKey="Ahangari, Ah" uniqKey="Ahangari A">AH Ahangari</name>
</author>
<author><name sortKey="Torabi, K" uniqKey="Torabi K">K Torabi</name>
</author>
<author><name sortKey="Farzin, M J" uniqKey="Farzin M">M.J Farzin</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Manicone, Pf" uniqKey="Manicone P">PF Manicone</name>
</author>
<author><name sortKey="Rossi Iometti, P" uniqKey="Rossi Iometti P">P Rossi Iometti</name>
</author>
<author><name sortKey="Faraelli, L" uniqKey="Faraelli L">L Faraelli</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Aboushelib, Mn" uniqKey="Aboushelib M">MN Aboushelib</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Lorenzoni, Fc" uniqKey="Lorenzoni F">FC Lorenzoni</name>
</author>
<author><name sortKey="Martins, Lm" uniqKey="Martins L">LM Martins</name>
</author>
<author><name sortKey="Silva, Nrfa" uniqKey="Silva N">NRFA Silva</name>
</author>
<author><name sortKey="Coelho, Pg" uniqKey="Coelho P">PG Coelho</name>
</author>
<author><name sortKey="Guess, Pc" uniqKey="Guess P">PC Guess</name>
</author>
<author><name sortKey="Bonfante, Ea" uniqKey="Bonfante E">EA Bonfante</name>
</author>
<author><name sortKey="Thompson, Vp" uniqKey="Thompson V">VP Thompson</name>
</author>
<author><name sortKey="Bongante, G" uniqKey="Bongante G">G Bongante</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Tinschert, J" uniqKey="Tinschert J">J Tinschert</name>
</author>
<author><name sortKey="Mautsch, W" uniqKey="Mautsch W">W Mautsch</name>
</author>
<author><name sortKey="Augthun, M" uniqKey="Augthun M">M Augthun</name>
</author>
<author><name sortKey="Spiekermann, H" uniqKey="Spiekermann H">H Spiekermann</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Butz, F" uniqKey="Butz F">F Butz</name>
</author>
<author><name sortKey="Heydecke, G" uniqKey="Heydecke G">G Heydecke</name>
</author>
<author><name sortKey="Okutan, M" uniqKey="Okutan M">M Okutan</name>
</author>
<author><name sortKey="Strub, Jr" uniqKey="Strub J">JR Strub</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Att, W" uniqKey="Att W">W Att</name>
</author>
<author><name sortKey="Kurun, S" uniqKey="Kurun S">S Kurun</name>
</author>
<author><name sortKey="Gerds, T" uniqKey="Gerds T">T Gerds</name>
</author>
<author><name sortKey="Strub, Jr" uniqKey="Strub J">JR Strub</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Strub, Jr" uniqKey="Strub J">JR Strub</name>
</author>
<author><name sortKey="Gerds, T" uniqKey="Gerds T">T Gerds</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Salehi, P" uniqKey="Salehi P">P Salehi</name>
</author>
<author><name sortKey="Shayestekhoo, Sh" uniqKey="Shayestekhoo S">SH Shayestekhoo</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Kelly, Jr" uniqKey="Kelly J">JR Kelly</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Guichet, Dl" uniqKey="Guichet D">DL Guichet</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Shadid, Rm" uniqKey="Shadid R">RM Shadid</name>
</author>
<author><name sortKey="Abu Naba, L" uniqKey="Abu Naba L">L Abu-Naba’a</name>
</author>
<author><name sortKey="Al Omari, Wm" uniqKey="Al Omari W">WM Al-Omari</name>
</author>
<author><name sortKey="Asfar, Kr" uniqKey="Asfar K">KR Asfar</name>
</author>
<author><name sortKey="El Masoud, Bm" uniqKey="El Masoud B">BM El-Masoud</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Karl, M" uniqKey="Karl M">M Karl</name>
</author>
<author><name sortKey="Graef, F" uniqKey="Graef F">F Graef</name>
</author>
<author><name sortKey="Taylor, Td" uniqKey="Taylor T">TD Taylor</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Zarone, F" uniqKey="Zarone F">F Zarone</name>
</author>
<author><name sortKey="Sorrentino, R" uniqKey="Sorrentino R">R Sorrentino</name>
</author>
<author><name sortKey="Traini, T" uniqKey="Traini T">T Traini</name>
</author>
<author><name sortKey="Di Lorio, D" uniqKey="Di Lorio D">D Di lorio</name>
</author>
<author><name sortKey="Caputi, S" uniqKey="Caputi S">S Caputi</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Wood, Kc" uniqKey="Wood K">KC Wood</name>
</author>
<author><name sortKey="Berzins, Dw" uniqKey="Berzins D">DW Berzins</name>
</author>
<author><name sortKey="Luo, Q" uniqKey="Luo Q">Q Luo</name>
</author>
<author><name sortKey="Thompson, Ga" uniqKey="Thompson G">GA Thompson</name>
</author>
<author><name sortKey="Toth, Jm" uniqKey="Toth J">JM Toth</name>
</author>
<author><name sortKey="Nagy, Ww" uniqKey="Nagy W">WW Nagy</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Curtis, Ar" uniqKey="Curtis A">AR Curtis</name>
</author>
<author><name sortKey="Wright, Aj" uniqKey="Wright A">AJ Wright</name>
</author>
<author><name sortKey="Fleming, Gj" uniqKey="Fleming G">GJ Fleming</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Scherrer, Ss" uniqKey="Scherrer S">SS Scherrer</name>
</author>
<author><name sortKey="Denry, Il" uniqKey="Denry I">IL Denry</name>
</author>
<author><name sortKey="Wiskott, Hw" uniqKey="Wiskott H">HW Wiskott</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Deng, Y" uniqKey="Deng Y">Y Deng</name>
</author>
<author><name sortKey="Lawn, Br" uniqKey="Lawn B">BR Lawn</name>
</author>
<author><name sortKey="Lioyd, Ik" uniqKey="Lioyd I">IK Lioyd</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Roebben, G" uniqKey="Roebben G">G Roebben</name>
</author>
<author><name sortKey="Basu, B" uniqKey="Basu B">B Basu</name>
</author>
<author><name sortKey="Vleugels, J" uniqKey="Vleugels J">J Vleugels</name>
</author>
<author><name sortKey="Van Der Bierst, O" uniqKey="Van Der Bierst O">O Van der Bierst</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Potiket, N" uniqKey="Potiket N">N Potiket</name>
</author>
<author><name sortKey="Chiche, G" uniqKey="Chiche G">G Chiche</name>
</author>
<author><name sortKey="Finger, Im" uniqKey="Finger I">IM Finger</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Denry, I" uniqKey="Denry I">I Denry</name>
</author>
<author><name sortKey="Kelly, R" uniqKey="Kelly R">R Kelly</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Haraldson, T" uniqKey="Haraldson T">T Haraldson</name>
</author>
<author><name sortKey="Carlsson, Ge" uniqKey="Carlsson G">GE Carlsson</name>
</author>
<author><name sortKey="Ingervall, B" uniqKey="Ingervall B">B Ingervall</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Dean, Js" uniqKey="Dean J">JS Dean</name>
</author>
<author><name sortKey="Throckmorton, Cs" uniqKey="Throckmorton C">CS Throckmorton</name>
</author>
<author><name sortKey="Ellis, Ee" uniqKey="Ellis E">EE Ellis</name>
</author>
<author><name sortKey="Sinn, Dp" uniqKey="Sinn D">DP Sinn</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Gay, T" uniqKey="Gay T">T Gay</name>
</author>
<author><name sortKey="Rendell, J" uniqKey="Rendell J">J Rendell</name>
</author>
<author><name sortKey="Majoureau, A" uniqKey="Majoureau A">A Majoureau</name>
</author>
<author><name sortKey="Maloney, Ft" uniqKey="Maloney F">FT Maloney</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Pallis, K" uniqKey="Pallis K">K Pallis</name>
</author>
<author><name sortKey="Griggs, Ja" uniqKey="Griggs J">JA Griggs</name>
</author>
<author><name sortKey="Woody, Rd" uniqKey="Woody R">RD Woody</name>
</author>
<author><name sortKey="Guillen, Ge" uniqKey="Guillen G">GE Guillen</name>
</author>
<author><name sortKey="Miller, Aw" uniqKey="Miller A">AW Miller</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Probster, L" uniqKey="Probster L">L Probster</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Anusavice, Kj" uniqKey="Anusavice K">KJ Anusavice</name>
</author>
<author><name sortKey="Dehoff, Ph" uniqKey="Dehoff P">PH Dehoff</name>
</author>
<author><name sortKey="Fairhurst, Cw" uniqKey="Fairhurst C">CW Fairhurst</name>
</author>
</analytic>
</biblStruct>
<biblStruct><analytic><author><name sortKey="Esquivel Upshaw, Jf" uniqKey="Esquivel Upshaw J">JF Esquivel-Upshaw</name>
</author>
<author><name sortKey="Anusavice, Kj" uniqKey="Anusavice K">KJ Anusavice</name>
</author>
<author><name sortKey="Reid, M" uniqKey="Reid M">M Reid</name>
</author>
<author><name sortKey="Yang, Mc" uniqKey="Yang M">MC Yang</name>
</author>
<author><name sortKey="Lee, Rb" uniqKey="Lee R">RB Lee</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">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>
<affiliations><list><country><li>Iran</li>
</country>
</list>
<tree><country name="Iran"><noRegion><name sortKey="Mokhtarpour, Hadi" sort="Mokhtarpour, Hadi" uniqKey="Mokhtarpour H" first="Hadi" last="Mokhtarpour">Hadi Mokhtarpour</name>
</noRegion>
<name sortKey="Alikhasi, Marzieh" sort="Alikhasi, Marzieh" uniqKey="Alikhasi M" first="Marzieh" last="Alikhasi">Marzieh Alikhasi</name>
<name sortKey="Eftekhar Ashtiani, Reza" sort="Eftekhar Ashtiani, Reza" uniqKey="Eftekhar Ashtiani R" first="Reza" last="Eftekhar Ashtiani">Reza Eftekhar Ashtiani</name>
<name sortKey="Mahshid, Minoo" sort="Mahshid, Minoo" uniqKey="Mahshid M" first="Minoo" last="Mahshid">Minoo Mahshid</name>
<name sortKey="Tabatabaian, Farhad" sort="Tabatabaian, Farhad" uniqKey="Tabatabaian F" first="Farhad" last="Tabatabaian">Farhad Tabatabaian</name>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Santé/explor/EdenteV2/Data/Ncbi/Merge
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 006A47 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Ncbi/Merge/biblio.hfd -nk 006A47 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Santé |area= EdenteV2 |flux= Ncbi |étape= Merge |type= RBID |clé= PMC:5025220 |texte= Effect of screw access hole preparation on fracture load of implant-supported zirconia-based crowns: an in vitro study }}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Ncbi/Merge/RBID.i -Sk "pubmed:27651885" \ | HfdSelect -Kh $EXPLOR_AREA/Data/Ncbi/Merge/biblio.hfd \ | NlmPubMed2Wicri -a EdenteV2
![]() | This area was generated with Dilib version V0.6.32. | ![]() |