Clinical wear of approximal glass ionomer restorations protected with a nanofilled self-adhesive light-cured protective coating

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

High viscous glass ionomer cement (GIC) has gained popularity as a restorative material; however, high wear is pointed as one of the major drawbacks of this material. Protective surface coatings were developed to protect GIC from water contamination with the additional advantage of occluding any surface cracks or porosities commonly found in this material, possibly resulting in an increased wear resistance of the restorations.
Objective: The objective of this study was to investigate the clinical wear of GIC approximal restorations in primary molars protected either with a nanofilled self-adhesive light-cured protective coating (NPC) or with petroleum jelly.
Material and Methods: Approximal caries lesions in primary molars from 32 schoolchildren previously enrolled in another clinical trial were included in this investigation. GIC restorations were performed according to the Atraumatic Restorative Treatment approach and protected with either petroleum jelly or a NPC. Impressions of the restored hemiarch were done after 1 day and 6, 12, 24 and 36 months. The impressions were scanned in a 3-D appliance and the obtained images were superimposed using an appropriate computer software. Two-way ANOVA for repeated measures and Tukey's post-hoc test were used to analyze the wear of restorations (α=5%).
Results: A significant difference was found between the two groups, with a wear protection offered by the application of a NPC.
Conclusion: These results suggest that the application of a NPC has a protective effect on the clinical wear of approximal GIC restorations in primary teeth.
Original languageEnglish
Article numbere20180094
Number of pages8
JournalJournal of Applied Oral Science
Volume26
DOIs
Publication statusPublished - 2018

Funding

We would like to thank the participants of the Graduate Program in Pediatric Dentistry Seminar from the University of São Paulo for their comments. We would like to thank the schoolchildren, their parents and the staff of the participating schools and of the public health service of Barueri, especially Alberto Luiz Ferreira Kesselring, Andrei Alvaro Barrichello Chaves and Fernanda Michelotti Cajado for their kind assistance during the study. We would like to express our gratitude to GC Europe for kindly donating the materials used in this study. The study was partially supported by the National Council for Scientific and Technological Development (CNPq) #472882/2010-4 and Coordination of Higher Education and Graduate Training (CAPES) #2003-13-9. Daniela Prócida Raggio receives CNPq research production scholarship.

FundersFunder number
Coordination of Higher Education and Graduate Training
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior2003-13-9
Conselho Nacional de Desenvolvimento Científico e Tecnológico472882/2010-4

    Fingerprint

    Dive into the research topics of 'Clinical wear of approximal glass ionomer restorations protected with a nanofilled self-adhesive light-cured protective coating'. Together they form a unique fingerprint.

    Cite this