2019, Number 2
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Rev Odotopediatr Latinoam 2019; 9 (2)
Impact of cavity size on bond strength of resin sealants - in vitro study
Neivas CT, Cecílio TAF, Araújo VF, Gerhard D, Freitas PJE, Kerber TT, Pettorossi IJC
Language: Spanish
References: 12
Page: 123-130
PDF size: 360.06 Kb.
ABSTRACT
Purpose: To evaluate the bonding strength to push out of resinous sealants in dentin cavities of different diameters.
Materials and methods: A double-blind, randomized, in vitro study with 60 bovine incisors (n = 10 test specimens per group) was performed in a longitudinal direction using a high concentration, double-sided diamond cutting disc for obtaining a slice of enamel / dentin 1 mm thick. Restorations were then made with two different resin sealants - Fluroshield
® (gold standard) and Ionoseal
® - in wells with diameters of 3, 4 and 5 mm. After 2 months of storage in water, the specimens were submitted to the push-out resistance test.
Results: The evaluated sealants showed similar bond strength values (p = 0.357). Likewise, the diameter of the wells did not interfere in the bond strength values of the resin sealants evaluated (p = 0.068).
Conclusion: It is possible to seal cavitated lesions in Latinoamericanathe external half of dentin with diameters of 3, 4 and 5 mm with different resinous sealants, since the materials presented similar resistance when applied to the push out test.
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