Análisis comparativo in vitro entre dos sistemas adhesivos en el sellado dentinario

Abstract

There is a wide variety of generations present on the market, but, without parallelism in effectiveness claims, for this reason, the research considers an approach within the context of oral sensitivity and its intrinsic relationship with two currently available adhesive systems, with the purpose of determining the coverage area of the biomaterial through a comparative analysis, establishing a facilitator parameter in the choice of material and in the treatment of this condition by specialized personnel. The present in vitro experimental study analyzed 40 healthy permanent premolars distributed in two equal groups and carved with a depth thickness of 1.5 mm. The Single bond Universal adhesive system (3M ESPE) was applied to the group; and to group B the adhesive system called Prime&Bond Universal™ (Dentsply Sirona), to later analyze its coverage on the dentinal complex with the help of the Tescan brand scanning electron microscope, Mira 3 model (MEB) at 5000X and 10000X.The images were divided into a grid of 25 segments to be analyzed according to the number of unexposed tubules per segment. Results: The percentage of general coverage of the area observed in the two adhesive systems at 5000X was 82.7% DE (±25.3), and 85.9% DE (±23.6) at 10000. Individually; 75% of the 3M Single Bond Universal adhesive samples were observed with high coverage, while in Prime&bond universal™ adhesive it occurred in 65% at 5000X and it was observed that the high coverage frequency was 85%, while in Prime&bond universal™ was 80% at 10000X, in both cases no significant differences were found. It is concluded that both the 3M Single bond universal adhesive system and the Prime&bond universal™ achieved a high percentage of coverage of the dentinal tubules. Keywords: Adhesive, coverage, dentin, permanent premolar, dental biomaterials.