Zirconia nanoparticles prepared by laser vaporization as fillers for dental adhesives

Acta Biomaterialia
Ulrich LohbauerFrank A Müller

Abstract

Zirconia nanoparticles prepared by laser vaporization were incorporated into the primer or into the adhesive of a commercial adhesive system in order to evaluate its effect on bond strength to dentin. Zirconia nanoparticles (20-50nm) were prepared using a particular laser vaporization technique and incorporated into the primer (P) or into the adhesive (A) of the Adper Scotchbond Multi-Purpose (SBMP) system at 5, 10, 15 and 20wt.% by means of mechanical mixing (stirring) and ultrasonication. Control (unfilled) and experimental groups (filled) were applied, according to the manufacturer's instructions, onto flat mid-coronal human dentin. Composite crowns were built up, stored in distilled water for 24h at 37°C and cut into 0.65±0.05mm² beams following a non-trimming microtensile technique. Specimens were fractured in tension using a universal testing machine (Zwick) and examined by scanning electron microscopy for fractographic analysis. Microtensile bond strength (μTBS) data were analyzed using a two-way ANOVA and modified LSD test at α=0.05. Analysis of the nanofiller distribution and ultramorphological characterization of the interface were performed by transmission electron microscopy (TEM). Zirconia nanoparticle incorporatio...Continue Reading

Citations

Sep 24, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Marco C BottinoJeffrey A Platt
Jun 7, 2014·Journal of the Mechanical Behavior of Biomedical Materials·Renan BelliUlrich Lohbauer
May 15, 2013·Ecotoxicology and Environmental Safety·Gopalu KarunakaranNarayanasamy Kannan
Mar 26, 2016·International Journal of Biological Macromolecules·S DeepthiR Jayakumar
Feb 11, 2015·Clinical Oral Investigations·Mohammed S AlkatheeriMarco C Bottino
May 9, 2012·Journal of Dentistry·Vicente Castelo Branco LeituneSusana Maria Werner Samuel
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Apr 12, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Laleh SolhiMohammad Imani

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