Adhesion of a sealant with pre-reacted glass ionomer particles under salivary contamination: an in vitro study

Carvalho, Milena Rodrigues; Torres, Carolina Paes; Saraiva, Maria da Conceição Pereira; Marubayashi, Lucas Masaru; Marques, Fernanda Vicioni; Queiroz, Alexandra Mussolino de; Borsatto, Maria Cristina

Objective:

this in vitro study compared the adhesive strengths of the resin sealant with the Giomer technology sealant under salivary contamination. Materials and

Methods:

fifty-two bovine incisors were randomly divided into four groups (n=13) GI, a resin sealant (Fluroshield®) without salivary contamination (control of GII); GII, Fluroshield sealant + salivary contamination; GIII, a Giomer technology sealant (BeautiSealant®) without salivary contamination (control of GIV); and GIV, BeautiSealant® sealant + salivary contamination. In the salivary contamination groups, artificial saliva was used through a pipette, and after 20 s, it was air-dried and the sealant was applied. Shear strength tests were performed using a universal testing machine. One-way ANOVA variance and Tukey's test were used for multiple comparisons. The fracture types were analyzed using a stereomicroscope with 40X magnification.

Results:

the means and standard deviations (SD) of adhesion for Fluroshield® and BeautiSealant® in the group without salivary contamination were 15.27 (±0.96) and 11.90 (±0.94), and for the group with salivary contamination, 13.14 (±1.03) and 8.95 (±1.33), respectively, indicating a statistically significant difference between GI and GII p=0.020, GIII and GIV p=0.041. Mixed failures were detected in GI (38%), GII (44%), GIII (38%), and GIV (62%).

Conclusion:

there was a statistically significant decrease in the adhesive strength values in the groups with salivary contamination for both the sealants studied. However, no significant difference was observed between the two sealants when the materials used were compared.

Biblioteca Virtual en Salud

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