Impact of multiple firings on fracture load of veneered zirconia restorations
This investigation evaluated the impact of multiple firings during the veneering process of anterior all-ceramic restorations on the fracture load (FL) of zirconia crowns veneered with different ceramics (ZRT, ZRO, HFZ, STR). All-ceramic crowns with anatomically reduced zirconia frameworks were prep...
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| Veröffentlicht in: | Journal of the mechanical behavior of biomedical materials 2022-06, Vol.130, p.105213-105213, Article 105213 |
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| creator | Hensel, Justine Reise, Michael Liebermann, Anja Buser, Ramona Stawarczyk, Bogna |
| description | This investigation evaluated the impact of multiple firings during the veneering process of anterior all-ceramic restorations on the fracture load (FL) of zirconia crowns veneered with different ceramics (ZRT, ZRO, HFZ, STR).
All-ceramic crowns with anatomically reduced zirconia frameworks were prepared using four different veneering ceramics (N = 192/n = 48 per veneering ceramic). The crowns were fired 2 and 10 times. Half of them were thermocycled (5000 cycles, 5 °C/55 °C, 20s). FL using Voss shear test was measured. Data was analyzed using ANOVA with partial eta squared and post-hoc Scheffé-test as well as t-test and Weibull analysis.
Regarding FL, greatest differences were among the number of firings (p |
| doi_str_mv | 10.1016/j.jmbbm.2022.105213 |
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All-ceramic crowns with anatomically reduced zirconia frameworks were prepared using four different veneering ceramics (N = 192/n = 48 per veneering ceramic). The crowns were fired 2 and 10 times. Half of them were thermocycled (5000 cycles, 5 °C/55 °C, 20s). FL using Voss shear test was measured. Data was analyzed using ANOVA with partial eta squared and post-hoc Scheffé-test as well as t-test and Weibull analysis.
Regarding FL, greatest differences were among the number of firings (p<0.001, ηp2 = 0.369). FL was not influenced by the interaction of both number of firings and aging level (p = 0.231) and the interaction of number of firings and veneering ceramic (p = 0.222). Differences were found comparing FL values of ZRT and STR (p<0.001) and of HFZ and STR (p<0.001). No differences occurred among the veneering ceramics after 2 (p = 0.430) and after 10 firings (p = 0.057) in respect to initial FL. For all initially tested veneering ceramics, FL showed higher values after 10 firings (p≤0.001–0.014). When aged, ZRO, HFZ, and STR also provided higher FL values after 10 firings (p≤0.001). For ZRT, FL values differed between initial and aged testing after 2 firings (p = 0.001) with aged specimens providing higher FL values. After 10 firings, none of the veneering ceramics showed differences regarding FL values between initial and aged testing. Weibull modulus was higher for ZRT specimens after 10 firings when tested initially (m = 10.1) and for aged ZRT specimens after 2 firings (m = 11.1). Failures occurred either with chipping of the veneer or total fracture.
Veneered zirconia restorations tested presented higher FL after 10 firings compared to 2 firings. Aging via thermocycling showed a positive effect on the FL.
[Display omitted]
•Veneered zirconia restorations presented higher fracture load after 10 firings compared to 2 firings.•Aging via thermocycling often showed a positive effect on the fracture load.•The leucite-free veneering ceramic conducted the highest Weibull moduli after 10 firings for initial and aged testing.•Failures occurred either with chipping of the veneer or total fracture.</description><identifier>ISSN: 1751-6161</identifier><identifier>EISSN: 1878-0180</identifier><identifier>DOI: 10.1016/j.jmbbm.2022.105213</identifier><identifier>PMID: 35385808</identifier><language>eng</language><publisher>Netherlands: Elsevier Ltd</publisher><subject>All-ceramic restoration ; Ceramics ; Chipping ; Crowns ; Dental Porcelain ; Dental Stress Analysis ; Dental Veneers ; Fracture load ; Leucite ceramic ; Materials Testing ; Multiple firings ; Surface Properties ; Thermal properties ; Veneering ceramics ; Zirconia ; Zirconium</subject><ispartof>Journal of the mechanical behavior of biomedical materials, 2022-06, Vol.130, p.105213-105213, Article 105213</ispartof><rights>2022 Elsevier Ltd</rights><rights>Copyright © 2022 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c359t-d5fba5833302ef70ab21ec03d25c05ba0525ca4514d9ecc05d397a4b8e79f99d3</citedby><cites>FETCH-LOGICAL-c359t-d5fba5833302ef70ab21ec03d25c05ba0525ca4514d9ecc05d397a4b8e79f99d3</cites><orcidid>0000-0002-3677-0432</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1751616122001308$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35385808$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hensel, Justine</creatorcontrib><creatorcontrib>Reise, Michael</creatorcontrib><creatorcontrib>Liebermann, Anja</creatorcontrib><creatorcontrib>Buser, Ramona</creatorcontrib><creatorcontrib>Stawarczyk, Bogna</creatorcontrib><title>Impact of multiple firings on fracture load of veneered zirconia restorations</title><title>Journal of the mechanical behavior of biomedical materials</title><addtitle>J Mech Behav Biomed Mater</addtitle><description>This investigation evaluated the impact of multiple firings during the veneering process of anterior all-ceramic restorations on the fracture load (FL) of zirconia crowns veneered with different ceramics (ZRT, ZRO, HFZ, STR).
All-ceramic crowns with anatomically reduced zirconia frameworks were prepared using four different veneering ceramics (N = 192/n = 48 per veneering ceramic). The crowns were fired 2 and 10 times. Half of them were thermocycled (5000 cycles, 5 °C/55 °C, 20s). FL using Voss shear test was measured. Data was analyzed using ANOVA with partial eta squared and post-hoc Scheffé-test as well as t-test and Weibull analysis.
Regarding FL, greatest differences were among the number of firings (p<0.001, ηp2 = 0.369). FL was not influenced by the interaction of both number of firings and aging level (p = 0.231) and the interaction of number of firings and veneering ceramic (p = 0.222). Differences were found comparing FL values of ZRT and STR (p<0.001) and of HFZ and STR (p<0.001). No differences occurred among the veneering ceramics after 2 (p = 0.430) and after 10 firings (p = 0.057) in respect to initial FL. For all initially tested veneering ceramics, FL showed higher values after 10 firings (p≤0.001–0.014). When aged, ZRO, HFZ, and STR also provided higher FL values after 10 firings (p≤0.001). For ZRT, FL values differed between initial and aged testing after 2 firings (p = 0.001) with aged specimens providing higher FL values. After 10 firings, none of the veneering ceramics showed differences regarding FL values between initial and aged testing. Weibull modulus was higher for ZRT specimens after 10 firings when tested initially (m = 10.1) and for aged ZRT specimens after 2 firings (m = 11.1). Failures occurred either with chipping of the veneer or total fracture.
Veneered zirconia restorations tested presented higher FL after 10 firings compared to 2 firings. Aging via thermocycling showed a positive effect on the FL.
[Display omitted]
•Veneered zirconia restorations presented higher fracture load after 10 firings compared to 2 firings.•Aging via thermocycling often showed a positive effect on the fracture load.•The leucite-free veneering ceramic conducted the highest Weibull moduli after 10 firings for initial and aged testing.•Failures occurred either with chipping of the veneer or total fracture.</description><subject>All-ceramic restoration</subject><subject>Ceramics</subject><subject>Chipping</subject><subject>Crowns</subject><subject>Dental Porcelain</subject><subject>Dental Stress Analysis</subject><subject>Dental Veneers</subject><subject>Fracture load</subject><subject>Leucite ceramic</subject><subject>Materials Testing</subject><subject>Multiple firings</subject><subject>Surface Properties</subject><subject>Thermal properties</subject><subject>Veneering ceramics</subject><subject>Zirconia</subject><subject>Zirconium</subject><issn>1751-6161</issn><issn>1878-0180</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kDtPwzAQgC0EoqXwC5BQRpYUP-LEGRhQxaNSEQvMlmNfkKMkLnZSCX49LimMTD7dfee7-xC6JHhJMMlvmmXTVVW3pJjSmOGUsCM0J6IQKSYCH8e44CTNSU5m6CyEBuMcYyFO0YxxJrjAYo6e191W6SFxddKN7WC3LSS19bZ_D4nrk9rH4ughaZ0ye2gHPYAHk3xZr11vVeIhDM6rwbo-nKOTWrUBLg7vAr093L-untLNy-N6dbdJNePlkBpeV4oLxhimUBdYVZSAxsxQrjGvVLyFa5VxkpkSdEwZVhYqqwQUZV2Whi3Q9fTv1ruPMS4gOxs0tK3qwY1B0jwTOM8p5RFlE6q9C8FDLbfedsp_SoLl3qNs5I9HufcoJ4-x6-owYKw6MH89v-IicDsBEM_cWfAyaAu9BmM96EEaZ_8d8A0_S4Un</recordid><startdate>202206</startdate><enddate>202206</enddate><creator>Hensel, Justine</creator><creator>Reise, Michael</creator><creator>Liebermann, Anja</creator><creator>Buser, Ramona</creator><creator>Stawarczyk, Bogna</creator><general>Elsevier Ltd</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><orcidid>https://orcid.org/0000-0002-3677-0432</orcidid></search><sort><creationdate>202206</creationdate><title>Impact of multiple firings on fracture load of veneered zirconia restorations</title><author>Hensel, Justine ; Reise, Michael ; Liebermann, Anja ; Buser, Ramona ; Stawarczyk, Bogna</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c359t-d5fba5833302ef70ab21ec03d25c05ba0525ca4514d9ecc05d397a4b8e79f99d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>All-ceramic restoration</topic><topic>Ceramics</topic><topic>Chipping</topic><topic>Crowns</topic><topic>Dental Porcelain</topic><topic>Dental Stress Analysis</topic><topic>Dental Veneers</topic><topic>Fracture load</topic><topic>Leucite ceramic</topic><topic>Materials Testing</topic><topic>Multiple firings</topic><topic>Surface Properties</topic><topic>Thermal properties</topic><topic>Veneering ceramics</topic><topic>Zirconia</topic><topic>Zirconium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hensel, Justine</creatorcontrib><creatorcontrib>Reise, Michael</creatorcontrib><creatorcontrib>Liebermann, Anja</creatorcontrib><creatorcontrib>Buser, Ramona</creatorcontrib><creatorcontrib>Stawarczyk, Bogna</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>Journal of the mechanical behavior of biomedical materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hensel, Justine</au><au>Reise, Michael</au><au>Liebermann, Anja</au><au>Buser, Ramona</au><au>Stawarczyk, Bogna</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Impact of multiple firings on fracture load of veneered zirconia restorations</atitle><jtitle>Journal of the mechanical behavior of biomedical materials</jtitle><addtitle>J Mech Behav Biomed Mater</addtitle><date>2022-06</date><risdate>2022</risdate><volume>130</volume><spage>105213</spage><epage>105213</epage><pages>105213-105213</pages><artnum>105213</artnum><issn>1751-6161</issn><eissn>1878-0180</eissn><abstract>This investigation evaluated the impact of multiple firings during the veneering process of anterior all-ceramic restorations on the fracture load (FL) of zirconia crowns veneered with different ceramics (ZRT, ZRO, HFZ, STR).
All-ceramic crowns with anatomically reduced zirconia frameworks were prepared using four different veneering ceramics (N = 192/n = 48 per veneering ceramic). The crowns were fired 2 and 10 times. Half of them were thermocycled (5000 cycles, 5 °C/55 °C, 20s). FL using Voss shear test was measured. Data was analyzed using ANOVA with partial eta squared and post-hoc Scheffé-test as well as t-test and Weibull analysis.
Regarding FL, greatest differences were among the number of firings (p<0.001, ηp2 = 0.369). FL was not influenced by the interaction of both number of firings and aging level (p = 0.231) and the interaction of number of firings and veneering ceramic (p = 0.222). Differences were found comparing FL values of ZRT and STR (p<0.001) and of HFZ and STR (p<0.001). No differences occurred among the veneering ceramics after 2 (p = 0.430) and after 10 firings (p = 0.057) in respect to initial FL. For all initially tested veneering ceramics, FL showed higher values after 10 firings (p≤0.001–0.014). When aged, ZRO, HFZ, and STR also provided higher FL values after 10 firings (p≤0.001). For ZRT, FL values differed between initial and aged testing after 2 firings (p = 0.001) with aged specimens providing higher FL values. After 10 firings, none of the veneering ceramics showed differences regarding FL values between initial and aged testing. Weibull modulus was higher for ZRT specimens after 10 firings when tested initially (m = 10.1) and for aged ZRT specimens after 2 firings (m = 11.1). Failures occurred either with chipping of the veneer or total fracture.
Veneered zirconia restorations tested presented higher FL after 10 firings compared to 2 firings. Aging via thermocycling showed a positive effect on the FL.
[Display omitted]
•Veneered zirconia restorations presented higher fracture load after 10 firings compared to 2 firings.•Aging via thermocycling often showed a positive effect on the fracture load.•The leucite-free veneering ceramic conducted the highest Weibull moduli after 10 firings for initial and aged testing.•Failures occurred either with chipping of the veneer or total fracture.</abstract><cop>Netherlands</cop><pub>Elsevier Ltd</pub><pmid>35385808</pmid><doi>10.1016/j.jmbbm.2022.105213</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-3677-0432</orcidid></addata></record> |
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| subjects | All-ceramic restoration Ceramics Chipping Crowns Dental Porcelain Dental Stress Analysis Dental Veneers Fracture load Leucite ceramic Materials Testing Multiple firings Surface Properties Thermal properties Veneering ceramics Zirconia Zirconium |
| title | Impact of multiple firings on fracture load of veneered zirconia restorations |
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