Analysis of microleakage and marginal gap presented by new polymeric systems in class V restorations: An in vitro study

Abstract

Objective Evaluating the contraction of polymerization effect of silorane-based composite on dental interface in enamel. Materials and Methods Eighty class V cavities were confectioned in forty extracted molar teeth and restored with different combinations of resinous-based and bond system. They were divided into the following groups: (G1) three-step etch-and-rinse adhesive system and methacrylate-based resin, (G2) two-step etch-and-rinse adhesive system and methacrylate-based resin, (G3) Filtek P-90 self-conditioning adhesive system and methacrylate-based resin, (G4) Adper SE Plus self-conditioning adhesive system and methacrylate-based resin, (G5) three-step etch-and-rinse adhesive system and silorane-based resin, (G6) two-step etch-and-rinse adhesive system and silorane-based resin, (G7) Filtek P-90 self-conditioning adhesive system and silorane-based resin, (G8) Adper SE Plus self-conditioning adhesive system and silorane-based resin. Results Group 7 showed lower marginal leakage when compared with all other groups (p = 0.001). Conclusions The results allows suggesting that silorane-based resinous system is adequate to promote more satisfactory marginal sealing than any other combination, since the system is combined with its own bond system.

Eficácia dos materiais restauradores temporários utilizados no tratamento endodôntico: revisão de literatura

“…A microinfiltração pode acontecer por erro no preenchimento do material obturador no canal radicular, recontaminação dos condutos, traumas locais ou até mesmo à propriedade de contração do material restaurador temporário durante o período intercalado das sessões durante o tratamento endodôntico, e tempo de presa dos seladores temporários (BRAGA, FERRACANE, et al, 2004;JUNG et al, 2006;MESHRAM et al, 2019;PEREIRA et al, 2021;SFEIKOS et al, 2022).…”

Comparación del grado de microfiltración en tres sistemas restauradores utilizando adhesivos universales: estudio in vitro

“…sensibilidad posoperatoria, caries recurrente y, en casos severos, a patologías pulpares (6,12,14). Aparece como resultado de la contracción en el proceso de polimerización y la diferencia entre los coeficientes de expansión térmica de la estructura dental y el material de restauración (15). La prueba de microfiltración es una medida bastante utilizada en los laboratorios cuya finalidad es evaluar la capacidad de sellado de los sistemas adhesivos (16), ya que tanto la microfiltración como la resistencia adhesiva son las principales variables al momento de realizar estudios sobre la adhesión en las estructuras dentarias (17).…”

Effect of Erbium, Chromium-doped: Yttrium, Scandium, Gallium and Garnet Laser Tooth Preparation on Gap Formation of Universal Adhesive Bonded to Enamel and Dentin: A Micro-CT and SEM Study

“…9,10 In addition, other factors such as cavity configuration and preparation, type of adhesive system and restorative material composition, insertion technique, curing technique, or interactions among all these factors can result in gap formation. [11][12][13] Scanning electron microscopy (SEM) was reported by Tosco et al to be a reliable modality for quantitatively assessing the margins and adaptation of dental restorations. 12 However, SEM is a destructive method that requires sectioning of the samples.…”