Effect of Dentin Moisture in Posterior Restorations Performed with Universal Adhesive: A Randomized Clinical Trial

Author:

Castro AS1,Maran BM2,Gutierrez MF3,Chemin K4,Mendez-Bauer ML5,Bermúdez JP6,Reis A7,Loguercio AD8

Affiliation:

1. Andrea S Castro, DDS, MS, assistante professor, School of Dentistry, Tuiuti University, Curitiba, PR, Brazil

2. Bianca M Maran, DDS, MS, PhD, Department of Restorative Dentistry, School of Dentistry, State University of Western Paraná, Cascavel, PR, Brazil

3. Mario F Gutierrez, DDS, MS, PhD, assistant professor, University de los Andes, Chile; assistant professor, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile

4. Kaprice Chemin, DDS, MS, PhD, assistant professor, School of Dentistry, Department of Health Sciences, School Unicesumar, Ponta Grossa, PR, Brazil

5. Maria L Mendez-Bauer, DDS, MSc, PhD, associate professor, Research Department, School of Dentistry, University Francisco Marroquin, Guatemala City, Guatemala

6. Jorge P Bermúdez, DDS, MS, PhD student, Department of Prosthodontics, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, PR, Brazil

7. Alessandra Reis, DDS, PhD, associate professor, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, PR, Brazil

8. *Alessandro D Loguercio, DDS, MS, PhD, associate professor, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, PR, Brazil

Abstract

SUMMARY Objectives This double-blind, randomized clinical trial evaluated the influence of dentin moisture on postoperative sensitivity (POS), as well as, on clinical performance in posterior bulk-fill composite restorations, using a universal adhesive, until 12 months after clinical service. Methods and Materials In accordance with a split-mouth design, 45 patients received posterior restorations, restored with a bulk-fill resin composite (Filtek Bulk Fill, 3M Oral Care) and a universal adhesive used in etch-and-rinse mode (SBU; Single Bond Universal Adhesive), which were applied on dry or moist dentin, with a cavity depth of at least 3 mm. Three operators placed 90 Class I/Class II restorations. Patients were evaluated for spontaneous and stimulated POS in the baseline, and after 48 hours, 7 days, and at 6 and 12 months. In addition, secondary parameters (marginal discoloration, marginal adaptation, fracture, and recurrent caries) were evaluated by World Dental Federation (FDI) criteria after 7 days and at 6 and 12 months. Statistical analyzes were performed using the Chi-square, Fisher exact, Friedman, Kruskall–Wallis, and Mann–Whitney tests (α=0.05). Results No significant spontaneous and stimulated POS was observed when SBU was applied in dry and moist dentin (p>0.05). A significant and higher risk of spontaneous POS (20.0%; 95%CI 10.9–33.82 for dry dentin and 22.22%; 95%CI 12.54–36.27 for moist dentin) occurred up to 48 hours after restoration placement for the dry and moist dentin groups (p<0.02). However, the POS intensity was mild up to 48 hours with no significant difference between dry and moist dentin groups (p>0.79). When secondary parameters were evaluated, no significant differences between the groups were observed. Conclusion Dentin moisture did not influence POS in posterior bulk-fill composite restorations when associated with a universal adhesive applied in etch-and-rinse mode.

Publisher

Operative Dentistry

Subject

General Dentistry

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