Fatigue of human dentin by cyclic loading and during oral biofilm challenge
Fatigue caused by the cyclic loads of mastication and acid attack caused by the excretion of oral biofilms are two of the most critical challenges to the success of dental restorations and their clinical service life. The objective of this investigation was to evaluate the fatigue strength of human...
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| Veröffentlicht in: | Journal of biomedical materials research. Part B, Applied biomaterials Applied biomaterials, 2017-10, Vol.105 (7), p.1978-1985 |
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| container_end_page | 1985 |
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| container_issue | 7 |
| container_start_page | 1978 |
| container_title | Journal of biomedical materials research. Part B, Applied biomaterials |
| container_volume | 105 |
| creator | Orrego, Santiago Melo, Mary Anne Lee, Se-Han Xu, Hockin H K Arola, Dwayne D |
| description | Fatigue caused by the cyclic loads of mastication and acid attack caused by the excretion of oral biofilms are two of the most critical challenges to the success of dental restorations and their clinical service life. The objective of this investigation was to evaluate the fatigue strength of human dentin when exposed to a simultaneous challenge of cyclic loading and acidic attack from oral bacteria. Rectangular beams of coronal dentin were obtained from third molars and subjected to cyclic flexural loading while exposed to an in-vitro microcosm biofilm model. Two different cariogenic protocols were considered and results were compared with those for control samples evaluated at neutral pH. According to the fatigue life distributions, dentin exposed to the biofilm model with 2.0% sucrose supplements pulsed twice per day caused a significant reduction in the fatigue strength (p |
| doi_str_mv | 10.1002/jbm.b.33729 |
| format | Article |
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The objective of this investigation was to evaluate the fatigue strength of human dentin when exposed to a simultaneous challenge of cyclic loading and acidic attack from oral bacteria. Rectangular beams of coronal dentin were obtained from third molars and subjected to cyclic flexural loading while exposed to an in-vitro microcosm biofilm model. Two different cariogenic protocols were considered and results were compared with those for control samples evaluated at neutral pH. According to the fatigue life distributions, dentin exposed to the biofilm model with 2.0% sucrose supplements pulsed twice per day caused a significant reduction in the fatigue strength (p < 0.001) with respect to 0.2% sucrose supplements pulsed once a day, and the control environment (without biofilm). The endurance limit after biofilm exposure was 20 MPa, which is 60% lower than that of the control environment without biofilm (50 MPa). Biofilm attack of dentin increases the likelihood of restored tooth failures by fatigue and after only modest periods of exposure. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1978-1985, 2017.</description><identifier>ISSN: 1552-4973</identifier><identifier>EISSN: 1552-4981</identifier><identifier>DOI: 10.1002/jbm.b.33729</identifier><identifier>PMID: 27327953</identifier><language>eng</language><publisher>United States: Wiley Subscription Services, Inc</publisher><subject>Adolescent ; Adult ; Bacteria ; Biofilms ; Biofilms - growth & development ; Biomedical materials ; Crack propagation ; Cyclic loads ; Dental Caries ; Dentin ; Dentin - chemistry ; Dentin - microbiology ; Excretion ; Exposure ; Fatigue ; Fatigue failure ; Fatigue life ; Fatigue limit ; Fatigue strength ; Female ; Humans ; Hydrogen-Ion Concentration ; Male ; Mastication ; Materials fatigue ; Materials research ; Materials science ; Molars ; pH effects ; Rectangular beams ; Service life ; Stress, Mechanical ; Sucrose ; Sugar ; Teeth</subject><ispartof>Journal of biomedical materials research. Part B, Applied biomaterials, 2017-10, Vol.105 (7), p.1978-1985</ispartof><rights>2016 Wiley Periodicals, Inc.</rights><rights>2017 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c317t-c9a3cab81be7282e73d0a398444d93e4fd8f7e9d9a696b5380b96bc5ba986f663</citedby><cites>FETCH-LOGICAL-c317t-c9a3cab81be7282e73d0a398444d93e4fd8f7e9d9a696b5380b96bc5ba986f663</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27327953$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Orrego, Santiago</creatorcontrib><creatorcontrib>Melo, Mary Anne</creatorcontrib><creatorcontrib>Lee, Se-Han</creatorcontrib><creatorcontrib>Xu, Hockin H K</creatorcontrib><creatorcontrib>Arola, Dwayne D</creatorcontrib><title>Fatigue of human dentin by cyclic loading and during oral biofilm challenge</title><title>Journal of biomedical materials research. Part B, Applied biomaterials</title><addtitle>J Biomed Mater Res B Appl Biomater</addtitle><description>Fatigue caused by the cyclic loads of mastication and acid attack caused by the excretion of oral biofilms are two of the most critical challenges to the success of dental restorations and their clinical service life. The objective of this investigation was to evaluate the fatigue strength of human dentin when exposed to a simultaneous challenge of cyclic loading and acidic attack from oral bacteria. Rectangular beams of coronal dentin were obtained from third molars and subjected to cyclic flexural loading while exposed to an in-vitro microcosm biofilm model. Two different cariogenic protocols were considered and results were compared with those for control samples evaluated at neutral pH. According to the fatigue life distributions, dentin exposed to the biofilm model with 2.0% sucrose supplements pulsed twice per day caused a significant reduction in the fatigue strength (p < 0.001) with respect to 0.2% sucrose supplements pulsed once a day, and the control environment (without biofilm). The endurance limit after biofilm exposure was 20 MPa, which is 60% lower than that of the control environment without biofilm (50 MPa). Biofilm attack of dentin increases the likelihood of restored tooth failures by fatigue and after only modest periods of exposure. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1978-1985, 2017.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Bacteria</subject><subject>Biofilms</subject><subject>Biofilms - growth & development</subject><subject>Biomedical materials</subject><subject>Crack propagation</subject><subject>Cyclic loads</subject><subject>Dental Caries</subject><subject>Dentin</subject><subject>Dentin - chemistry</subject><subject>Dentin - microbiology</subject><subject>Excretion</subject><subject>Exposure</subject><subject>Fatigue</subject><subject>Fatigue failure</subject><subject>Fatigue life</subject><subject>Fatigue limit</subject><subject>Fatigue strength</subject><subject>Female</subject><subject>Humans</subject><subject>Hydrogen-Ion Concentration</subject><subject>Male</subject><subject>Mastication</subject><subject>Materials fatigue</subject><subject>Materials research</subject><subject>Materials science</subject><subject>Molars</subject><subject>pH effects</subject><subject>Rectangular beams</subject><subject>Service life</subject><subject>Stress, Mechanical</subject><subject>Sucrose</subject><subject>Sugar</subject><subject>Teeth</subject><issn>1552-4973</issn><issn>1552-4981</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpdkD1PwzAYhC0EoqUwsSNLLEgoJfabxPGIKgqISiwwW_5K68pxit0M_fekFDow3Q2PTqcHoWuST0me04e1aqdqCsAoP0FjUpY0K3hNTo-dwQhdpLQe4Cov4RyNKAPKeAlj9DaXW7fsLe4avOpbGbCxYesCVjusd9o7jX0njQtLLIPBpo_72kXpsXJd43yL9Up6b8PSXqKzRvpkr35zgj7nTx-zl2zx_vw6e1xkGgjbZppL0FLVRFlGa2oZmFwCr4uiMBxs0Zi6YZYbLiteqRLqXA2pSyV5XTVVBRN0d9jdxO6rt2krWpe09V4G2_VJkJpWLCcFFAN6-w9dd30MwztBOJSUQkHoQN0fKB27lKJtxCa6VsadILnYOxaDY6HEj-OBvvnd7FVrzZH9kwrf3oF2dg</recordid><startdate>201710</startdate><enddate>201710</enddate><creator>Orrego, Santiago</creator><creator>Melo, Mary Anne</creator><creator>Lee, Se-Han</creator><creator>Xu, Hockin H K</creator><creator>Arola, Dwayne D</creator><general>Wiley Subscription Services, 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>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>201710</creationdate><title>Fatigue of human dentin by cyclic loading and during oral biofilm challenge</title><author>Orrego, Santiago ; Melo, Mary Anne ; Lee, Se-Han ; Xu, Hockin H K ; Arola, Dwayne D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c317t-c9a3cab81be7282e73d0a398444d93e4fd8f7e9d9a696b5380b96bc5ba986f663</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Bacteria</topic><topic>Biofilms</topic><topic>Biofilms - growth & development</topic><topic>Biomedical materials</topic><topic>Crack propagation</topic><topic>Cyclic loads</topic><topic>Dental Caries</topic><topic>Dentin</topic><topic>Dentin - chemistry</topic><topic>Dentin - microbiology</topic><topic>Excretion</topic><topic>Exposure</topic><topic>Fatigue</topic><topic>Fatigue failure</topic><topic>Fatigue life</topic><topic>Fatigue limit</topic><topic>Fatigue strength</topic><topic>Female</topic><topic>Humans</topic><topic>Hydrogen-Ion Concentration</topic><topic>Male</topic><topic>Mastication</topic><topic>Materials fatigue</topic><topic>Materials research</topic><topic>Materials science</topic><topic>Molars</topic><topic>pH effects</topic><topic>Rectangular beams</topic><topic>Service life</topic><topic>Stress, Mechanical</topic><topic>Sucrose</topic><topic>Sugar</topic><topic>Teeth</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Orrego, Santiago</creatorcontrib><creatorcontrib>Melo, Mary Anne</creatorcontrib><creatorcontrib>Lee, Se-Han</creatorcontrib><creatorcontrib>Xu, Hockin H K</creatorcontrib><creatorcontrib>Arola, Dwayne D</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of biomedical materials research. Part B, Applied biomaterials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Orrego, Santiago</au><au>Melo, Mary Anne</au><au>Lee, Se-Han</au><au>Xu, Hockin H K</au><au>Arola, Dwayne D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fatigue of human dentin by cyclic loading and during oral biofilm challenge</atitle><jtitle>Journal of biomedical materials research. Part B, Applied biomaterials</jtitle><addtitle>J Biomed Mater Res B Appl Biomater</addtitle><date>2017-10</date><risdate>2017</risdate><volume>105</volume><issue>7</issue><spage>1978</spage><epage>1985</epage><pages>1978-1985</pages><issn>1552-4973</issn><eissn>1552-4981</eissn><abstract>Fatigue caused by the cyclic loads of mastication and acid attack caused by the excretion of oral biofilms are two of the most critical challenges to the success of dental restorations and their clinical service life. The objective of this investigation was to evaluate the fatigue strength of human dentin when exposed to a simultaneous challenge of cyclic loading and acidic attack from oral bacteria. Rectangular beams of coronal dentin were obtained from third molars and subjected to cyclic flexural loading while exposed to an in-vitro microcosm biofilm model. Two different cariogenic protocols were considered and results were compared with those for control samples evaluated at neutral pH. According to the fatigue life distributions, dentin exposed to the biofilm model with 2.0% sucrose supplements pulsed twice per day caused a significant reduction in the fatigue strength (p < 0.001) with respect to 0.2% sucrose supplements pulsed once a day, and the control environment (without biofilm). The endurance limit after biofilm exposure was 20 MPa, which is 60% lower than that of the control environment without biofilm (50 MPa). Biofilm attack of dentin increases the likelihood of restored tooth failures by fatigue and after only modest periods of exposure. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1978-1985, 2017.</abstract><cop>United States</cop><pub>Wiley Subscription Services, Inc</pub><pmid>27327953</pmid><doi>10.1002/jbm.b.33729</doi><tpages>8</tpages></addata></record> |
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| ispartof | Journal of biomedical materials research. Part B, Applied biomaterials, 2017-10, Vol.105 (7), p.1978-1985 |
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| subjects | Adolescent Adult Bacteria Biofilms Biofilms - growth & development Biomedical materials Crack propagation Cyclic loads Dental Caries Dentin Dentin - chemistry Dentin - microbiology Excretion Exposure Fatigue Fatigue failure Fatigue life Fatigue limit Fatigue strength Female Humans Hydrogen-Ion Concentration Male Mastication Materials fatigue Materials research Materials science Molars pH effects Rectangular beams Service life Stress, Mechanical Sucrose Sugar Teeth |
| title | Fatigue of human dentin by cyclic loading and during oral biofilm challenge |
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