Fracture resistance of soft tissue level implants after cyclic loading and external modification
Statement of problem The exposure of the implant collar in the esthetic zone is a challenging complication of implant dentistry. The preparation of the exposed implant collar to create room for restorative material may decrease the strength of the abutment/implant assembly. Purpose The purpose of th...
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| Veröffentlicht in: | The Journal of prosthetic dentistry 2013, Vol.109 (1), p.30-36 |
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| container_title | The Journal of prosthetic dentistry |
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| creator | DiPede, Louis, DMD Alhashim, Abdulmohsin, BDS, MSD Vaidyanathan, T.K., PhD Flinton, Robert, DDS, MS |
| description | Statement of problem The exposure of the implant collar in the esthetic zone is a challenging complication of implant dentistry. The preparation of the exposed implant collar to create room for restorative material may decrease the strength of the abutment/implant assembly. Purpose The purpose of this in vitro study was to evaluate the effect on the failure load of preparing a 0.5-mm chamfer finish line on an implant collar at various apical depths. Material and methods Thirty solid abutments and 30 implants were screwed into a customized metal mold at a 30-degree angle to the vertical axis. An intact group (IN) (control) (n=10) had no preparation, experimental group P1 had a 0.5-mm chamfer margin placed 1 mm apical to the implant/abutment interface, and experimental group P2 had the margin placed 2 mm apical. The specimens were subjected to a fatigue loading of 200 N for 1 000 000 cycles. Unfractured specimens were then loaded until failure. Mean fracture load (MFL) values were compared with 1-way ANOVA, and the Tukey test was used to identify differences among groups (α=.05). Results One specimen from both the IN and P1 groups and 2 specimens from the P2 group failed after fatigue loading. Significant differences in the MFL values were found between the IN group (3825) and P1 group (2944), P |
| doi_str_mv | 10.1016/S0022-3913(13)60007-4 |
| format | Article |
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The preparation of the exposed implant collar to create room for restorative material may decrease the strength of the abutment/implant assembly. Purpose The purpose of this in vitro study was to evaluate the effect on the failure load of preparing a 0.5-mm chamfer finish line on an implant collar at various apical depths. Material and methods Thirty solid abutments and 30 implants were screwed into a customized metal mold at a 30-degree angle to the vertical axis. An intact group (IN) (control) (n=10) had no preparation, experimental group P1 had a 0.5-mm chamfer margin placed 1 mm apical to the implant/abutment interface, and experimental group P2 had the margin placed 2 mm apical. The specimens were subjected to a fatigue loading of 200 N for 1 000 000 cycles. Unfractured specimens were then loaded until failure. Mean fracture load (MFL) values were compared with 1-way ANOVA, and the Tukey test was used to identify differences among groups (α=.05). Results One specimen from both the IN and P1 groups and 2 specimens from the P2 group failed after fatigue loading. Significant differences in the MFL values were found between the IN group (3825) and P1 group (2944), P <.001 and between the IN group and the P2 group (2553), P <.001. Conclusions The mean load required to fracture the abutment/implant assembly decreased significantly after various amounts of implant collar preparation.</description><identifier>ISSN: 0022-3913</identifier><identifier>EISSN: 1097-6841</identifier><identifier>DOI: 10.1016/S0022-3913(13)60007-4</identifier><identifier>PMID: 23328194</identifier><language>eng</language><publisher>United States: Mosby, Inc</publisher><subject>Analysis of Variance ; Bite Force ; Compressive Strength ; Dental Abutments ; Dental Implantation, Endosseous - adverse effects ; Dental Implantation, Endosseous - methods ; Dental Implants ; Dental Restoration Failure ; Dental Stress Analysis ; Dentistry ; Gingival Recession ; Humans ; Risk Factors ; Statistics, Nonparametric ; Torque</subject><ispartof>The Journal of prosthetic dentistry, 2013, Vol.109 (1), p.30-36</ispartof><rights>The Editorial Council of the Journal of Prosthetic Dentistry</rights><rights>2013 The Editorial Council of the Journal of Prosthetic Dentistry</rights><rights>Copyright © 2013 The Editorial Council of the Journal of Prosthetic Dentistry. Published by Mosby, Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c420t-33538774a3667622fee7d0e9e07e47d2c9da210eaa88cce83bdca3cf290596b03</citedby><cites>FETCH-LOGICAL-c420t-33538774a3667622fee7d0e9e07e47d2c9da210eaa88cce83bdca3cf290596b03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0022-3913(13)60007-4$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,4009,27902,27903,27904,45974</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23328194$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>DiPede, Louis, DMD</creatorcontrib><creatorcontrib>Alhashim, Abdulmohsin, BDS, MSD</creatorcontrib><creatorcontrib>Vaidyanathan, T.K., PhD</creatorcontrib><creatorcontrib>Flinton, Robert, DDS, MS</creatorcontrib><title>Fracture resistance of soft tissue level implants after cyclic loading and external modification</title><title>The Journal of prosthetic dentistry</title><addtitle>J Prosthet Dent</addtitle><description>Statement of problem The exposure of the implant collar in the esthetic zone is a challenging complication of implant dentistry. The preparation of the exposed implant collar to create room for restorative material may decrease the strength of the abutment/implant assembly. Purpose The purpose of this in vitro study was to evaluate the effect on the failure load of preparing a 0.5-mm chamfer finish line on an implant collar at various apical depths. Material and methods Thirty solid abutments and 30 implants were screwed into a customized metal mold at a 30-degree angle to the vertical axis. An intact group (IN) (control) (n=10) had no preparation, experimental group P1 had a 0.5-mm chamfer margin placed 1 mm apical to the implant/abutment interface, and experimental group P2 had the margin placed 2 mm apical. The specimens were subjected to a fatigue loading of 200 N for 1 000 000 cycles. Unfractured specimens were then loaded until failure. Mean fracture load (MFL) values were compared with 1-way ANOVA, and the Tukey test was used to identify differences among groups (α=.05). Results One specimen from both the IN and P1 groups and 2 specimens from the P2 group failed after fatigue loading. Significant differences in the MFL values were found between the IN group (3825) and P1 group (2944), P <.001 and between the IN group and the P2 group (2553), P <.001. Conclusions The mean load required to fracture the abutment/implant assembly decreased significantly after various amounts of implant collar preparation.</description><subject>Analysis of Variance</subject><subject>Bite Force</subject><subject>Compressive Strength</subject><subject>Dental Abutments</subject><subject>Dental Implantation, Endosseous - adverse effects</subject><subject>Dental Implantation, Endosseous - methods</subject><subject>Dental Implants</subject><subject>Dental Restoration Failure</subject><subject>Dental Stress Analysis</subject><subject>Dentistry</subject><subject>Gingival Recession</subject><subject>Humans</subject><subject>Risk Factors</subject><subject>Statistics, Nonparametric</subject><subject>Torque</subject><issn>0022-3913</issn><issn>1097-6841</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkD1vFDEQhi0EIkfgJ4BchmLBH7v2ugGhiABSJAqgNj57Fjl414fHG3H_Ht9dSEGDNJKLeeYdz0PIc85eccbV6y-MCdFJw-UFly8VY0x3_QOy4czoTo09f0g298gZeYJ405hx0PwxORNSipGbfkO-XxXn61qAFsCI1S0eaJ4o5qnSGhFXoAluIdE475JbKlI3VSjU732KnqbsQlx-ULcECr9bY3GJzjnEKXpXY16ekkeTSwjP7t5z8u3q_dfLj9315w-fLt9dd74XrHZSDnLUundSKa2EmAB0YGCAaeh1EN4EJzgD58bRexjlNngn_SQMG4zaMnlOLk65u5J_rYDVzhE9pPZnyCtaLrRUgzFqaOhwQn3JiAUmuytxdmVvObMHufYo1x7M2VZHubZvcy_uVqzbGcL91F-bDXh7AqAdehuhWPQRmtEQC_hqQ47_XfHmn4RmeWkq00_YA97k9SC4XWNRWHYKOWRweUzo5R9Qwp8L</recordid><startdate>2013</startdate><enddate>2013</enddate><creator>DiPede, Louis, DMD</creator><creator>Alhashim, Abdulmohsin, BDS, MSD</creator><creator>Vaidyanathan, T.K., PhD</creator><creator>Flinton, Robert, DDS, MS</creator><general>Mosby, Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>2013</creationdate><title>Fracture resistance of soft tissue level implants after cyclic loading and external modification</title><author>DiPede, Louis, DMD ; Alhashim, Abdulmohsin, BDS, MSD ; Vaidyanathan, T.K., PhD ; Flinton, Robert, DDS, MS</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c420t-33538774a3667622fee7d0e9e07e47d2c9da210eaa88cce83bdca3cf290596b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Analysis of Variance</topic><topic>Bite Force</topic><topic>Compressive Strength</topic><topic>Dental Abutments</topic><topic>Dental Implantation, Endosseous - adverse effects</topic><topic>Dental Implantation, Endosseous - methods</topic><topic>Dental Implants</topic><topic>Dental Restoration Failure</topic><topic>Dental Stress Analysis</topic><topic>Dentistry</topic><topic>Gingival Recession</topic><topic>Humans</topic><topic>Risk Factors</topic><topic>Statistics, Nonparametric</topic><topic>Torque</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>DiPede, Louis, DMD</creatorcontrib><creatorcontrib>Alhashim, Abdulmohsin, BDS, MSD</creatorcontrib><creatorcontrib>Vaidyanathan, T.K., PhD</creatorcontrib><creatorcontrib>Flinton, Robert, DDS, MS</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Journal of prosthetic dentistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>DiPede, Louis, DMD</au><au>Alhashim, Abdulmohsin, BDS, MSD</au><au>Vaidyanathan, T.K., PhD</au><au>Flinton, Robert, DDS, MS</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fracture resistance of soft tissue level implants after cyclic loading and external modification</atitle><jtitle>The Journal of prosthetic dentistry</jtitle><addtitle>J Prosthet Dent</addtitle><date>2013</date><risdate>2013</risdate><volume>109</volume><issue>1</issue><spage>30</spage><epage>36</epage><pages>30-36</pages><issn>0022-3913</issn><eissn>1097-6841</eissn><abstract>Statement of problem The exposure of the implant collar in the esthetic zone is a challenging complication of implant dentistry. The preparation of the exposed implant collar to create room for restorative material may decrease the strength of the abutment/implant assembly. Purpose The purpose of this in vitro study was to evaluate the effect on the failure load of preparing a 0.5-mm chamfer finish line on an implant collar at various apical depths. Material and methods Thirty solid abutments and 30 implants were screwed into a customized metal mold at a 30-degree angle to the vertical axis. An intact group (IN) (control) (n=10) had no preparation, experimental group P1 had a 0.5-mm chamfer margin placed 1 mm apical to the implant/abutment interface, and experimental group P2 had the margin placed 2 mm apical. The specimens were subjected to a fatigue loading of 200 N for 1 000 000 cycles. Unfractured specimens were then loaded until failure. Mean fracture load (MFL) values were compared with 1-way ANOVA, and the Tukey test was used to identify differences among groups (α=.05). Results One specimen from both the IN and P1 groups and 2 specimens from the P2 group failed after fatigue loading. Significant differences in the MFL values were found between the IN group (3825) and P1 group (2944), P <.001 and between the IN group and the P2 group (2553), P <.001. Conclusions The mean load required to fracture the abutment/implant assembly decreased significantly after various amounts of implant collar preparation.</abstract><cop>United States</cop><pub>Mosby, Inc</pub><pmid>23328194</pmid><doi>10.1016/S0022-3913(13)60007-4</doi><tpages>7</tpages></addata></record> |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Analysis of Variance Bite Force Compressive Strength Dental Abutments Dental Implantation, Endosseous - adverse effects Dental Implantation, Endosseous - methods Dental Implants Dental Restoration Failure Dental Stress Analysis Dentistry Gingival Recession Humans Risk Factors Statistics, Nonparametric Torque |
| title | Fracture resistance of soft tissue level implants after cyclic loading and external modification |
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