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International Poster Journal of Dentistry and Oral Medicine



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Int Poster J Dent Oral Med 8 (2006), No. 2     15. June 2006
Int Poster J Dent Oral Med 8 (2006), No. 2  (15.06.2006)

Poster 320, Language: English

Microtensile Bond Strength of Five Self-Conditioning Dentin Adhesives in Vitro
Bekes, Katrin/Gernhardt, Christian Ralf/Schaller, Hans-Günter
Objectives: The aim of this study was to evaluate microtensile bond strength of five different self-conditioning dentin adhesives (Futurabond NR, Adper Prompt L-Pop, Contax, AdheSE, Clearfil Protect Bond) on perfused dentin in vitro.
Methods: Fifty freshly extracted molars, stored in saline for a maximum of fourteen days after extraction were included. All teeth were specially prepared allowing the simulation of dentin perfusion. Dentin specimens with a total thickness of 3.5 mm were obtained under standardized conditions. The specimens were randomly assigned to five experimental groups of ten samples each: Group A: Futurabond NR; group B: Adper Prompt L-Pop; group C: Contax; group D: AdheSE; group E: Clearfil Protect Bond. Microtensile bond strength was measured 15 minutes after application and light curing of the composite material (Clearfil AP-X, colour A2) using an universal testing machine.
Results: For the five test series following bond strengths were evaluated (mean value and standard deviation in MPa): group A: 13.34 (± 4.27), group B: 22.33 (± 2.77), group C: 20.50 (± 3.30), group D: 17.65 (± 4.84), group E: 22.53 (± 3.68). Statistical analysis showed a significant influence of the used material combination on tensile bond strength (pConclusions: Within the limitations of an in vitro investigation it can be concluded that all self-conditionng bonding agents used in this study were able to establish bond strength on perfused dentin showing almost favourable values.

Keywords: self-conditioning bonding agent, self-conditioning dentin adhesives, microtensile bond strength

September 14th -17th, 2005
Joint Meeting of the Continental European (CED) and Scabdinavian (NOF) Divisions of the IADR
Amsterdam, Netherlands