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Dentin permeability after pretreatment with titanium tetrafluoride and self-etching or universal adhesive systems


Dentin permeability
Dentin-bonding agents

How to Cite

Franco GG, Cardoso RF de M, Carlos NR, Turssi CP, Amaral FLB do, França FMG, Basting RT. Dentin permeability after pretreatment with titanium tetrafluoride and self-etching or universal adhesive systems. Braz. J. Oral Sci. [Internet]. 2023 May 3 [cited 2023 Sep. 27];22(00):e237545. Available from:


Aim: To evaluate dentin permeability after pretreatment with 2.5% aqueous solution of titanium tetrafluoride (TiF4), followed by a self-etching universal adhesive system. Methods: Forty dentin discs (1.5 mm thick) were randomly divided into groups according to the application or non-application of a pretreatment, and the type of adhesive system to be tested (two-step self-etching/ Clearfil SE Bond/ Kuraray Medical, or universal adhesive system/ Single Bond Universal/ 3M ESPE). Both sides of the discs were conditioned with 37% phosphoric acid to remove the smear layer. The first hydraulic conductivity measurement (L1) was performed in a permeability machine, under 5 PSI pressure. The samples were sanded again to form a standardized smear layer. The teeth designated for pre-treatment with TiF4 received the TiF4 solutions applied actively for 60 seconds, and the adhesive systems were applied according to the manufacturer’s instructions. Then, a new hydraulic conductivity measurement (L2) was performed for the purpose of calculating the hydraulic conductance at a later time, considering the water viscosity and the thickness of the specimen. The percentage (L) of dentin permeability after application of the adhesive system was obtained (L (%) = [(L1-L2) x100] / L1). The Mann-Whitney non-parametric test was applied. Results: There was no difference between the two adhesive systems, or between the groups with or without pretreatment, as regards dentin permeability (p>0.05). Conclusion: Pretreatment with 2.5% TiF4 did not influence dentin permeability, irrespective of the adhesive system used.


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Copyright (c) 2022 Gabriel Greco Franco, Ruthinea Faria de Moraes Cardoso, Natália Russo Carlos, Cecilia Pedroso Turssi, Flávia Lucisano Botelho do Amaral, Fabiana Mantovani Gomes França, Roberta Tarkany Basting


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