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Year : 2018  |  Volume : 13  |  Issue : 2  |  Page : 99-105

Impact of nano-TiO2 particles on water sorption and solubility in different denture base materials

Department of Fixed and Removable Prosthodontics, Oral and Dental Division, National Research Centre, Cairo, Egypt

Correspondence Address:
Wessam M Dehis
Dental Researcher PhD holder of Oral Removable Prosthodontics department at National Research Centre, 33 ElBouhoth Street, Dokki, Cairo, 12622
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jasmr.jasmr_27_18

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Background/aim Denture base materials with all their diversities and the curing method have a massive impact on their physical, mechanical, and biological traits. This contemplate is aimed to both assess and relate water sorption and solubility of heat-cured and microwave-cured acrylic resin denture base materials with and without the addition of titanium oxide nanoparticles (TiO2 NPs). Materials and methods A total number of 80 circular specimens were fabricated for the two tested groups (n=40). Group I was divided into two subgroups: group IA and group IB (20 each) fabricated from heat-cured and microwave-cured acrylic resin, respectively. Another group (group II) was divided into two subgroups: group IIA and group IIB (20 each) as in group I with the addition of TiO2 NPs. Then, the degree of water sorption and water solubility was calibrated by using an electronic balance for all specimens and determined by the aid of a specific formula. Results The present results indicated that there is a significant difference between all groups using one-way analysis of variance test as the P value was less than 0.05. Moreover, Tukey’s post-hoc test was performed and revealed that there was a significant difference between all subgroups except (group IIA and group IIB) in which there was an insignificant difference regarding water sorption and water solubility. Conclusion Within the limitation of this consideration, microwave-cured acrylic resin is superior to the heat-cured one regarding both water sorption and solubility. Moreover, the addition of TiO2 NPs revealed the best outcome.

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