Abstract
Objective: To evaluate the postoperative sensitivity in posterior restorations with different resin composites and adhesive systems as well as the influence of the depth and extent of the dental cavity. Material and Methods: A double-blind clinical trial was carried out with 80 class I restorations of 16 patients. The participants were divided into 4 groups according to the adhesive system + composite: F + P (Filtek P90™ + P90™); R + S (Rok™ + Stae™); P + A (P60™ + Adper SE PLUS™); E + X (Evolux™ + XPBond™ Adhesive). After 7, 15 and 30 days, the presence of postoperative sensitivity was evaluated and classified according to type and intensity. The data were submitted to Pearson's chi-square test, Fisher's exact teste, Student’s t-test and ANOVA. A significance level of 5% was used for all tests. Results: The presence of postoperative sensitivity was approximately 6% of the total sample. The sensitivity decreased with the evaluation time, with the smallest reduction occurring from the 7-day evaluation compared to the other evaluations. Conclusion: There was found no evidence of influence of the resin composite and adhesive type, depth and extension of the cavities for the presence of postoperative sensitivity. Keywords Dentistry; Dentin sensitivity; Adhesives; Composite resins.
Highlights
The success in direct restorations is attributed to their functionality and longevity
The objective of present study was to evaluate the presence of postoperative sensitivity in posterior teeth restored with different types of resin composites and adhesive systems as well as the influence of the depth and extension of the dental cavity
This double-blinded clinical trial was approved by the Research Ethics Committee of the Centro Integrado de Saúde Amaury de Medeiros (CISAM), Recife, PE, Brazil (# 0003.1.250.000_10)
Summary
The success in direct restorations is attributed to their functionality and longevity. The clinical success with resin composites allows their safe use in anterior and posterior teeth [1,3]. A decisive fact in this context is the adhesive technology [4,5]. The adhesive systems used acted by the conventional adhesive technique and had several preliminary steps to insert the resin composite, making the protocol susceptible to errors [6]. With the incorporation of acidic resin monomers to the composition of the bonding agents, the selfetching technology came out, which eliminated steps of the conventional adhesive technique, such as washing and drying the cavity [7]
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