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Amend, Stefanie; Frankenberger, Roland; Oschmann, Tobias; Lücker, Susanne; Winter, Julia; Krämer, Norbert

Long‐term microtensile bond strength of self‐etch adhesives and influence of 7‐s phosphoric acid etching on adhesion of a 3‐step etch‐and‐rinse adhesive to the dentine of primary teeth

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  • Medientyp: E-Artikel
  • Titel: Long‐term microtensile bond strength of self‐etch adhesives and influence of 7‐s phosphoric acid etching on adhesion of a 3‐step etch‐and‐rinse adhesive to the dentine of primary teeth
  • Beteiligte: Amend, Stefanie; Frankenberger, Roland; Oschmann, Tobias; Lücker, Susanne; Winter, Julia; Krämer, Norbert
  • Erschienen: Wiley, 2022
  • Erschienen in: International Journal of Paediatric Dentistry
  • Sprache: Englisch
  • DOI: 10.1111/ipd.12943
  • ISSN: 0960-7439; 1365-263X
  • Schlagwörter: General Dentistry
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:title>Abstract</jats:title><jats:sec><jats:title>Background</jats:title><jats:p>The immediate microtensile bond strength (µTBS) of self‐etch (SE) adhesives to primary dentine is promising, but evidence about the durability is scarce.</jats:p></jats:sec><jats:sec><jats:title>Aim</jats:title><jats:p>To assess the long‐term µTBS of SE adhesives to primary dentine and to examine the effect of 7‐s etching on µTBS of a 3‐step etch‐and‐rinse (ER) adhesive.</jats:p></jats:sec><jats:sec><jats:title>Design</jats:title><jats:p>The enamel of 115 caries‐free human primary teeth was ground flat, and bonding was performed according to group assignment: G‐aenial™ Bond/GC [GB], Clearfil™ SE Bond/Kuraray [CS], OptiBond™ XTR/Kerr [OX], Scotchbond™ Universal/3M™ [SU], Prime&amp;Bond<jats:sup>®</jats:sup> NT™/Dentsply [PB], and OptiBond™ FL/Kerr [OF]. After storage (24 h, 6 mos., 12 mos.), 1,762 beams were cut for µTBS testing. Fracture analysis was performed using light/fluorescence microscopy. Resin‐dentine interfaces were exemplarily analyzed using SEM.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>After 24 h, OX and SU showed significantly higher estimated mean µTBS than GB, which exhibited the lowest µTBS at all stages (<jats:italic>p</jats:italic> &lt; .05). μTBS within each adhesive group showed slight variations over time (<jats:italic>p</jats:italic> &gt; .05). OF_SE produced acceptable µTBS. Etching increased the mean immediate µTBS for OF (<jats:italic>p</jats:italic> &gt; .05) and the percentage of cohesive fractures.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>SE adhesives achieved durable μTBS to primary dentine. 7‐s etching may improve the immediate µTBS of a 3‐step ER adhesive.</jats:p></jats:sec>