Longitudinal evaluation of the effect of saliva contamination during the bonding protocol with a self-etch adhesive system

Authors

  • Samuel Nilo Vieira University of São Paulo
  • Fernando Aparecido Kawaguchi University of São Paulo
  • Sergio Brossi Botta University of São Paulo
  • Adriana Bona Matos University of São Paulo

DOI:

https://doi.org/10.20396/bjos.v9i2.8641864

Keywords:

Saliva contamination, Self-etch adhesive, Bond strength, Longevity

Abstract

Aim: To evaluate the influence of saliva contamination on the short- and long-term bond strength of a self-etch adhesive system. Methods: One hundred and twelve non-carious human molars were randomly divided according to: substrate (enamel/dentin); presence of saliva [none (controlC), before primer (BP), after primer (AP) and after bonding agent (AB)]; treatment of the contamination [none (1), rinsing + drying (2), drying (3) and primer re-application (4)] and specimen storage (24 h or 6 months). A self-etch adhesive system was applied to the dental surfaces followed by incremental insertions of composite resin. After storage in water at 37o C, the specimens were perpendicularly cut into beams for microtensile bond strength testing. Data in MPa were compared by ANOVA followed by Tukey’s test (p< 0.05). Micrographs were obtained by low vacuum scanning electron microscopy. Results: Control groups (G1 and G8) presented higher bond strength than all other groups. The factors presence of saliva, treatments of the contaminant and specimen storage showed no statistically significant results for the two dental substrates. Contaminants could be detected by LV-SEM. Six-month storage did not affect bond strength. Conclusions: The presence of saliva during the application of the self-etch system was deleterious to the bond to enamel and dentin, irrespective of the operative step in which the contamination occurred.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

Author Biographies

Samuel Nilo Vieira, University of São Paulo

DDS, Undergraduate student, Department of Operative Dentistry, Dental School, University of São Paulo

Fernando Aparecido Kawaguchi, University of São Paulo

DDS, MS, PhD, Graduate student, Department of Operative Dentistry, Dental School, University of São Paulo

Sergio Brossi Botta, University of São Paulo

DDS, MS, Graduate student, Department of Operative Dentistry, Dental School, University of São Paulo

Adriana Bona Matos, University of São Paulo

DDS, MS, PhD, Professor, Department of Operative Dentistry, Dental School, University of São Paulo

Downloads

Published

2015-11-25

How to Cite

1.
Vieira SN, Kawaguchi FA, Botta SB, Matos AB. Longitudinal evaluation of the effect of saliva contamination during the bonding protocol with a self-etch adhesive system. Braz. J. Oral Sci. [Internet]. 2015 Nov. 25 [cited 2022 Dec. 8];9(2):98-103. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641864

Issue

Section

Article

Most read articles by the same author(s)