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Revista Portuguesa de Estomatologia,
Medicina Dentária e Cirurgia Maxilofacial

rev port estomatol med dent cir maxilofac. 2020;61(3):97-105

Original Research

6-month clinical performance of a universal adhesive
on non-carious cervical lesions: self-etch and

etch-and-rinse techniques

Joana Cruz*, Ana Luísa Silva, Raquel Eira, Catarina Coito, Manuela Lopes,
Alexandre Cavalheiro

Faculdade de Medicina Dentária da Universidade de Lisboa, Lisbon, Portugal

a r t i c l e i n f o a b s t r a c t

Article history: Objectives: The purpose of this study was to evaluate the 6-month clinical performance of
Received 8 January 2020 Adhese Universal applied with two different application strategies (self-etch vs. etch-and-
Accepted 25 October 2020 rinse technique) when restoring non-carious cervical lesions.
Available online 16 novembro 2020 Methods: Twenty-six patients participated in this study. Restorations of 117 non-carious
cervical lesions were assigned to 2 groups: 1) Adhese Universal in the etch-and-rinse mode
Keywords: (n=59) and 2) Adhese Universal in the self-etch mode (n=58). The same resin composite
Clinical trial (Tetric EvoCeram) was used for all restorations. The restorations were evaluated at baseline
Etch-and-rinse and at 6 months, using the World Dental Federation criteria. The results were analyzed
Self-etch statistically by the McNemar test (α=0.05 and power of 80%) to compare the differences
Universal adhesive between baseline and 6 months and a generalized estimating equation to compare the
differences between the 2 techniques.
Results: No differences were found in restoration performance between the baseline and the
end of the 6-month period in the self-etch mode (marginal coloring: p=0.1366; fractures/re-
tention: p=1.000; marginal adaptation: p=1.000; hypersensitivity: p=0.4795; recurrence of
caries: p=1.000). On the other hand, in the etch-and-rinse mode, for both fractures/retention
(p=0.0028) and marginal adaptation (p=0.0016), significant differences were found. Significant
differences were also detected between groups at 6 months for fractures/retention and mar-
ginal adaptation (p<0.01). Nine restorations were lost at 6 months in the etch-and-rinse group.
Conclusions: The tested universal adhesive obtained better results in the self-etch technique
than in the etch-and-rinse technique, both on fractures/retention and marginal adaptation.
(Rev Port Estomatol Med Dent Cir Maxilofac. 2020;61(3):97-105)
© 2020 Sociedade Portuguesa de Estomatologia e Medicina Dentária.
Published by SPEMD. This is an open access article under the CC BY-NC-ND license
(http://creativecommons.org/licenses/by-nc-nd/4.0/).

* Corresponding author.
E-mail address: joanacruz2@gmail.com (Joana Cruz).
http://doi.org/10.24873/j.rpemd.2020.11.713
1646-2890/© 2020 Sociedade Portuguesa de Estomatologia e Medicina Dentária. Published by SPEMD.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).