Effect of the number of applications of acetone-based adhesives on microtensile bond strength and the hybrid layer
The current study was carried out to evaluate the effect of doubling the adhesive layers of three acetone-based adhesives on the microtensile bond strength and ultra morphological characterization of the resin dentin interface using SEM. A total of 27 caries-free human molars were used. Superficial...
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| Veröffentlicht in: | Operative dentistry 2009-11, Vol.34 (6), p.688-696 |
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| creator | Elkassas, Dina Taher, Heba Allah Elsahn, Nessrine Hafez, Randa El-Badrawy, Wafa |
| description | The current study was carried out to evaluate the effect of doubling the adhesive layers of three acetone-based adhesives on the microtensile bond strength and ultra morphological characterization of the resin dentin interface using SEM.
A total of 27 caries-free human molars were used. Superficial flat dentin surfaces were obtained by wet grinding the buccal surfaces. Three adhesive systems Prime & Bond NT (G1), XENO IV (GII) and G BOND (GIII) were used according to three different protocols: (A) according to the manufacturer's instructions, (B) doubling the adhesive layers and light curing and (C): doubling the adhesive layers with intermediate curing between each layer. Resin composite buildups were made using TPH Spectrum resin composite on the bonded surfaces in 1 mm light cured increments for 40 seconds each. The bonded teeth were sectioned to obtain sticks for microtensile testing. The testing was conducted using a universal testing machine at a crosshead speed of 1 mm/minute. The microtensile bond strength means and standard deviations were calculated and the data were statistically analyzed using Two-way Analysis of Variance (ANOVA) and Tukey's post-hoc tests (p < or = 0.05). Ultra morphological characterization of the resin-dentin interface and representative fractured dentin specimens were examined using SEM.
When applied according to the manufacturer's instructions, Prime & Bond NT (total etch adhesive) showed significantly high microtensile bond strength with a mean value +/- SD of 35 +/- 12.7 MPa followed by XENO IV (21.2 +/- 9.4 MPa), while G BOND presented a significantly lower mean value (10.9 +/- 2.9 MPa). Doubling the adhesive layers significantly reduced the mean strength of the total etch adhesive system; in contrast, it significantly increased the bond strength of both self-etch adhesives. The relatively thicker adhesive layer was seen with the total-etch adhesive when the application was doubled, while the hybrid layer appeared thicker with self-etch adhesives.
Doubling the adhesive layer applications significantly improved the bond strength of the two self-etch adhesives (XENO IV and G BOND); however, it had a negative effect on the bond strength of the total-etch adhesive (Prime & Bond NT). |
| doi_str_mv | 10.2341/08-089-L |
| format | Article |
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A total of 27 caries-free human molars were used. Superficial flat dentin surfaces were obtained by wet grinding the buccal surfaces. Three adhesive systems Prime & Bond NT (G1), XENO IV (GII) and G BOND (GIII) were used according to three different protocols: (A) according to the manufacturer's instructions, (B) doubling the adhesive layers and light curing and (C): doubling the adhesive layers with intermediate curing between each layer. Resin composite buildups were made using TPH Spectrum resin composite on the bonded surfaces in 1 mm light cured increments for 40 seconds each. The bonded teeth were sectioned to obtain sticks for microtensile testing. The testing was conducted using a universal testing machine at a crosshead speed of 1 mm/minute. The microtensile bond strength means and standard deviations were calculated and the data were statistically analyzed using Two-way Analysis of Variance (ANOVA) and Tukey's post-hoc tests (p < or = 0.05). Ultra morphological characterization of the resin-dentin interface and representative fractured dentin specimens were examined using SEM.
When applied according to the manufacturer's instructions, Prime & Bond NT (total etch adhesive) showed significantly high microtensile bond strength with a mean value +/- SD of 35 +/- 12.7 MPa followed by XENO IV (21.2 +/- 9.4 MPa), while G BOND presented a significantly lower mean value (10.9 +/- 2.9 MPa). Doubling the adhesive layers significantly reduced the mean strength of the total etch adhesive system; in contrast, it significantly increased the bond strength of both self-etch adhesives. The relatively thicker adhesive layer was seen with the total-etch adhesive when the application was doubled, while the hybrid layer appeared thicker with self-etch adhesives.
Doubling the adhesive layer applications significantly improved the bond strength of the two self-etch adhesives (XENO IV and G BOND); however, it had a negative effect on the bond strength of the total-etch adhesive (Prime & Bond NT).</description><identifier>ISSN: 0361-7734</identifier><identifier>EISSN: 1559-2863</identifier><identifier>DOI: 10.2341/08-089-L</identifier><identifier>PMID: 19953778</identifier><language>eng</language><publisher>United States</publisher><subject>Compomers ; Dental Cements ; Dentin - ultrastructure ; Dentin-Bonding Agents ; Dentistry ; Humans ; Methacrylates ; Microscopy, Electron, Scanning ; Polymethacrylic Acids ; Resin Cements ; Tensile Strength</subject><ispartof>Operative dentistry, 2009-11, Vol.34 (6), p.688-696</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-9ff7c970e9c7e8a9b712399fecb2ac650c8d59b36e8e15c012f8c47a584e1d933</citedby><cites>FETCH-LOGICAL-c316t-9ff7c970e9c7e8a9b712399fecb2ac650c8d59b36e8e15c012f8c47a584e1d933</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19953778$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Elkassas, Dina</creatorcontrib><creatorcontrib>Taher, Heba Allah</creatorcontrib><creatorcontrib>Elsahn, Nessrine</creatorcontrib><creatorcontrib>Hafez, Randa</creatorcontrib><creatorcontrib>El-Badrawy, Wafa</creatorcontrib><title>Effect of the number of applications of acetone-based adhesives on microtensile bond strength and the hybrid layer</title><title>Operative dentistry</title><addtitle>Oper Dent</addtitle><description>The current study was carried out to evaluate the effect of doubling the adhesive layers of three acetone-based adhesives on the microtensile bond strength and ultra morphological characterization of the resin dentin interface using SEM.
A total of 27 caries-free human molars were used. Superficial flat dentin surfaces were obtained by wet grinding the buccal surfaces. Three adhesive systems Prime & Bond NT (G1), XENO IV (GII) and G BOND (GIII) were used according to three different protocols: (A) according to the manufacturer's instructions, (B) doubling the adhesive layers and light curing and (C): doubling the adhesive layers with intermediate curing between each layer. Resin composite buildups were made using TPH Spectrum resin composite on the bonded surfaces in 1 mm light cured increments for 40 seconds each. The bonded teeth were sectioned to obtain sticks for microtensile testing. The testing was conducted using a universal testing machine at a crosshead speed of 1 mm/minute. The microtensile bond strength means and standard deviations were calculated and the data were statistically analyzed using Two-way Analysis of Variance (ANOVA) and Tukey's post-hoc tests (p < or = 0.05). Ultra morphological characterization of the resin-dentin interface and representative fractured dentin specimens were examined using SEM.
When applied according to the manufacturer's instructions, Prime & Bond NT (total etch adhesive) showed significantly high microtensile bond strength with a mean value +/- SD of 35 +/- 12.7 MPa followed by XENO IV (21.2 +/- 9.4 MPa), while G BOND presented a significantly lower mean value (10.9 +/- 2.9 MPa). Doubling the adhesive layers significantly reduced the mean strength of the total etch adhesive system; in contrast, it significantly increased the bond strength of both self-etch adhesives. The relatively thicker adhesive layer was seen with the total-etch adhesive when the application was doubled, while the hybrid layer appeared thicker with self-etch adhesives.
Doubling the adhesive layer applications significantly improved the bond strength of the two self-etch adhesives (XENO IV and G BOND); however, it had a negative effect on the bond strength of the total-etch adhesive (Prime & Bond NT).</description><subject>Compomers</subject><subject>Dental Cements</subject><subject>Dentin - ultrastructure</subject><subject>Dentin-Bonding Agents</subject><subject>Dentistry</subject><subject>Humans</subject><subject>Methacrylates</subject><subject>Microscopy, Electron, Scanning</subject><subject>Polymethacrylic Acids</subject><subject>Resin Cements</subject><subject>Tensile Strength</subject><issn>0361-7734</issn><issn>1559-2863</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkFtLxDAQhYMo7roK_gLJm75Ek6ZpkkdZ1gsUfNHnkqRTG-nNJCvsv7frLggDw2E-DnMOQteM3mc8Zw9UEao0KU_QkgmhSaYKfoqWlBeMSMnzBbqI8YvSXORCnKMF01pwKdUShU3TgEt4bHBqAQ_b3kLYKzNNnXcm-XGIf9pBGgcg1kSosalbiP4H5tOAe-_CmGCIvgNsx6HGMQUYPlOLzSz2vu3OBl_jzuwgXKKzxnQRro57hT6eNu_rF1K-Pb-uH0viOCsS0U0jnZYUtJOgjLaSZVzr-VubGVcI6lQttOUFKGDCUZY1yuXSCJUDqzXnK3R78J3C-L2FmKreRwddZwYYt7GSnItM60zP5N2BnHPEGKCppuB7E3YVo9W-4IqqeXRVzujN0XRre6j_wWOj_BffMXcS</recordid><startdate>200911</startdate><enddate>200911</enddate><creator>Elkassas, Dina</creator><creator>Taher, Heba Allah</creator><creator>Elsahn, Nessrine</creator><creator>Hafez, Randa</creator><creator>El-Badrawy, Wafa</creator><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>200911</creationdate><title>Effect of the number of applications of acetone-based adhesives on microtensile bond strength and the hybrid layer</title><author>Elkassas, Dina ; Taher, Heba Allah ; Elsahn, Nessrine ; Hafez, Randa ; El-Badrawy, Wafa</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-9ff7c970e9c7e8a9b712399fecb2ac650c8d59b36e8e15c012f8c47a584e1d933</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Compomers</topic><topic>Dental Cements</topic><topic>Dentin - ultrastructure</topic><topic>Dentin-Bonding Agents</topic><topic>Dentistry</topic><topic>Humans</topic><topic>Methacrylates</topic><topic>Microscopy, Electron, Scanning</topic><topic>Polymethacrylic Acids</topic><topic>Resin Cements</topic><topic>Tensile Strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Elkassas, Dina</creatorcontrib><creatorcontrib>Taher, Heba Allah</creatorcontrib><creatorcontrib>Elsahn, Nessrine</creatorcontrib><creatorcontrib>Hafez, Randa</creatorcontrib><creatorcontrib>El-Badrawy, Wafa</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>Operative dentistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Elkassas, Dina</au><au>Taher, Heba Allah</au><au>Elsahn, Nessrine</au><au>Hafez, Randa</au><au>El-Badrawy, Wafa</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of the number of applications of acetone-based adhesives on microtensile bond strength and the hybrid layer</atitle><jtitle>Operative dentistry</jtitle><addtitle>Oper Dent</addtitle><date>2009-11</date><risdate>2009</risdate><volume>34</volume><issue>6</issue><spage>688</spage><epage>696</epage><pages>688-696</pages><issn>0361-7734</issn><eissn>1559-2863</eissn><abstract>The current study was carried out to evaluate the effect of doubling the adhesive layers of three acetone-based adhesives on the microtensile bond strength and ultra morphological characterization of the resin dentin interface using SEM.
A total of 27 caries-free human molars were used. Superficial flat dentin surfaces were obtained by wet grinding the buccal surfaces. Three adhesive systems Prime & Bond NT (G1), XENO IV (GII) and G BOND (GIII) were used according to three different protocols: (A) according to the manufacturer's instructions, (B) doubling the adhesive layers and light curing and (C): doubling the adhesive layers with intermediate curing between each layer. Resin composite buildups were made using TPH Spectrum resin composite on the bonded surfaces in 1 mm light cured increments for 40 seconds each. The bonded teeth were sectioned to obtain sticks for microtensile testing. The testing was conducted using a universal testing machine at a crosshead speed of 1 mm/minute. The microtensile bond strength means and standard deviations were calculated and the data were statistically analyzed using Two-way Analysis of Variance (ANOVA) and Tukey's post-hoc tests (p < or = 0.05). Ultra morphological characterization of the resin-dentin interface and representative fractured dentin specimens were examined using SEM.
When applied according to the manufacturer's instructions, Prime & Bond NT (total etch adhesive) showed significantly high microtensile bond strength with a mean value +/- SD of 35 +/- 12.7 MPa followed by XENO IV (21.2 +/- 9.4 MPa), while G BOND presented a significantly lower mean value (10.9 +/- 2.9 MPa). Doubling the adhesive layers significantly reduced the mean strength of the total etch adhesive system; in contrast, it significantly increased the bond strength of both self-etch adhesives. The relatively thicker adhesive layer was seen with the total-etch adhesive when the application was doubled, while the hybrid layer appeared thicker with self-etch adhesives.
Doubling the adhesive layer applications significantly improved the bond strength of the two self-etch adhesives (XENO IV and G BOND); however, it had a negative effect on the bond strength of the total-etch adhesive (Prime & Bond NT).</abstract><cop>United States</cop><pmid>19953778</pmid><doi>10.2341/08-089-L</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; Allen Press Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Compomers Dental Cements Dentin - ultrastructure Dentin-Bonding Agents Dentistry Humans Methacrylates Microscopy, Electron, Scanning Polymethacrylic Acids Resin Cements Tensile Strength |
| title | Effect of the number of applications of acetone-based adhesives on microtensile bond strength and the hybrid layer |
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