Effect of non-thermal argon plasma on the shear strength of adhesive systems

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Passos, Isabella de Almeida Guimarães¹  Marques, Juliana das Neves¹  Câmara, João Victor Frazão²  Simão, Renata Antoun¹  Prado, Maíra do¹  Pereira, Gisele Damiana da Silveira¹ 

[1] Universidade Federal do Rio de Janeiro – UFRJ;Saarland University Hospital

关键词: argon plasma;    non-thermal plasma;    dentin bonding agents;    dentin;    shear strength;   

DOI  :  10.1590/0104-1428.20220019

学科分类：社会科学、人文和艺术（综合）

来源: Brazilian Academy Of Neurology

【 摘 要 】

This study evaluated the influence of non-thermal argon plasma applied to dentin on the shear strength of two adhesive systems. Ninety tooth fragments were embedded in epoxy resin and distributed into experimental groups (n=15): G1 and G4 - adhesive systems applied according to the manufacturers’ instructions; G2 and G5 - dentin treated with non-thermal argon plasma for 30 seconds before hybridization; G3 and G6 - dentin treated with non-thermal argon plasma for 30 seconds after hybridization. Cylinders were made with composite resin in the adhesive area, and the specimens were submitted to the shear strength test. Higher values were observed when applying the plasma treatment after hybridization (G1: 26.51 MPa, G2: 29.22 MPa, G3: 30.27 MPa, G4: 22.66 MPa, G5: 28.33 MPa, G6: 29.32 MPa). The treatment with non-thermal argon plasma significantly increased the shear strength values regardless of the application time.

【 授权许可】

CC BY