Evaluation of a self-adhesive resin cement as a cervical barrier in intracoronal bleaching


  • Wesley Hemerich da Silva Universidade Federal do Espírito Santo
  • Rony de Jesus Batista Universidade Federal do Espírito Santo
  • Manoelito Ferreira Silva Junior Universidade Estadual de Ponta Grossa http://orcid.org/0000-0001-8837-5912
  • Luiz Gustavo Dias Daroz Universidade Federal do Espírito Santo
  • Cláudia Batitucci dos Santos Daroz Universidade Federal do Espírito Santo




Dental cements, Dental leakage, Dental bleaching, Endodontics


Aim: To evaluate the sealing ability of a self-adhesive resin cement as a cervical barrier for internal bleaching.

Methods: Forty recently extracted bovine lower incisors were endodontically treated. After 72 hours, partial disobturation of the root canal was performed, a cervical barrier was placed, and the teeth were divided into four random groups (n = 40), each containing ten samples (n = 10), using the following materials: self-adhesive resin cement, adhesive resin cement, zinc oxide cement without eugenol cured by water, and chemically activate glass ionomer cement (control group). Twenty-four hours after the materials were cured, the teeth were subjected to internal bleaching with sodium perborate and distilled water for a period of seven days in a humidified chamber at 37°C. After, the bleaching material was removed and a dye (0.5% basic fuchsin) was placed inside the pulp chamber and renewed every eight hours for a period of 24 hours. The teeth were sectioned longitudinally in a cutting machine for quantitative evaluation using an optical microscope under 20x magnification. The degree of dye penetration was evaluated through the cervical barrier (top to bottom).

Results: No significant difference was observed among the cervical barrier materials used in this study (p = 0.5997).

Conclusion: The self-adhesive resin cement had low degree of leakage and represents an alternative material option to be used as a cervical barrier.



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How to Cite

Silva, W. H. da, Batista , R. de J., Silva Junior, M. F., Daroz, L. G. D., & Daroz , C. B. dos S. (2022). Evaluation of a self-adhesive resin cement as a cervical barrier in intracoronal bleaching. Arquivos Em Odontologia, 57, 8–16. https://doi.org/10.7308/aodontol/2021.57.e02




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