Journalartikel

Jahr der Veröffentlichung: 2014

Seiten: 535-543

Zeitschrift: Clinical Oral Investigations

Bandnummer: 18

Heftnummer: 2

ISSN: 1432-6981

eISSN: 1436-3771

DOI Link: https://doi.org/10.1007/s00784-013-0975-6

Verlag: Springer

Abstract: 

To determine the effect on resin composite-to-dentin bond strength of incorporation of an acidic tin-chloride pretreatment in two adhesive systems.

Human molars were ground to expose mid-coronal dentin. For microtensile bond strength (mu TBS) testing, dentin was treated with Optibond FL or Clearfil SE according to one of six protocols (n = 22/group). Group 1: Phosphoric acid etching, Optibond FL Prime, Optibond FL Adhesive (manufacturer's instructions; control); Group 2: Tin-chloride pretreatment, Optibond FL Prime, Optibond FL Adhesive; Group 3: Phosphoric acid etching, tin-chloride pretreatment, Optibond FL Prime, Optibond FL Adhesive; Group 4: Clearfil SE Primer, Clearfil SE Bond (manufacturer's instructions; control); Group 5: Phosphoric acid etching, Clearfil SE Primer, Clearfil SE Bond; and Group 6: Tin-chloride pretreatment, Clearfil SE Primer, Clearfil SE Bond. The molars were then built up with resin composite (Clearfil Majesty Esthetic). After storage (1 week, 100 % humidity, 37 A degrees C) the mu TBS was measured and failure mode was determined. Additionally, pretreated dentin surfaces were evaluated using SEM and EDX. The mu TBS results were analyzed statistically by a Welch Two Sample t-test and a Kruskal-Wallis test followed by exact Wilcoxon rank sum tests with Bonferroni-Holm adjustment for multiple testing (alpha = 0.05).

When Optibond FL was used, partial or total replacement of phosphoric acid with tin-chloride decreased mu TBS significantly. In contrast, when Clearfil SE was used, inclusion of a tin-chloride pretreatment in the adhesive procedure increased mu TBS significantly.

Tin-chloride pretreatment had a beneficial influence on the bond promoting capacity of the MDP-containing adhesive system Clearfil SE.

Harvard-Zitierstil: Peutzfeldt, A., Koch, T., Ganss, C., Flury, S. and Lussi, A. (2014) Effect of tin-chloride pretreatment on bond strength of two adhesive systems to dentin, Clinical Oral Investigations, 18(2), pp. 535-543. https://doi.org/10.1007/s00784-013-0975-6

APA-Zitierstil: Peutzfeldt, A., Koch, T., Ganss, C., Flury, S., & Lussi, A. (2014). Effect of tin-chloride pretreatment on bond strength of two adhesive systems to dentin. Clinical Oral Investigations. 18(2), 535-543. https://doi.org/10.1007/s00784-013-0975-6