Color change capacity of dental resin mixed with silver methacrylate caused by light irradiation and heating

Yoshida, Koichi; Aoki, Harumi; Yoshida, Takaichi

doi:10.4012/dmj.28.324

Cited by 5 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…14 A great deal of attention has been dedicated to the addition of an Ag compound to the acrylic resin as a measure against odor and bacterial proliferation in the oral cavity, but the results were unfortunately fruitless regarding the color change. 46 Hamedi-Rad et al studied the influence of adding 5 wt% Ag NPs to PMMA on changes in the tensile strength, compressive strength and thermal conductivity values of PMMA. 17 They found a rise in the values of compressive strength and thermal conductivity, but a decline in the tensile strength values.…”

Section: Discussionmentioning

confidence: 99%

Tribological, microhardness and color stability properties of a heat-cured acrylic resin denture base after reinforcement with different types of nanofiller particles

Altaie

2023

Dent. Med. Probl.

View full text Add to dashboard Cite

Background. Polymethyl methacrylate (PMMA) is not an ideal material in all aspects, as it has poor mechanical and antimicrobial properties. The enhancement of the mechanical and physical features of PMMA-based material is highly required.Objectives. The present study aimed to estimate the effect of adding different types of nanoparticle (NP) materials on the mechanical and physical features of heat-cured acrylic resin denture base material. Material and methods.A total of 120 samples were divided into 4 groups: the control group; the 5 wt% ZrO 2 NPs group; the 5 wt% TiO 2 NPs group; and the 5 wt% Ag NPs group. Each one was subdivided into 3 groups according to the test performed: the microhardness test; the abrasive wear test; and the color stability test. Then, the results of these tests were evaluated.Results. The maximum mean value for the microhardness test was observed in the group treated with the addition of 5 wt% Ag NPs, followed by the 5 wt% ZrO 2 NPs group, and finally the 5 wt% TiO 2 NPs group. The lowest mean microhardness value was recorded for the control group. The maximum mean value for the abrasive wear test was attributed to the control group and the lowest mean value was related to the 5 wt% Ag NPs group. The maximum color change was noted in the 5 wt% Ag NPs group, followed by the 5 wt% ZrO 2 NPs and 5 wt% TiO 2 NPs groups. The lowest mean value for the color change was found in the control group. Conclusions.There was an increase in hardness and wear resistance in the group treated by adding 5 wt% Ag NPs, and the control group had the best color stability, followed by the 5 wt% TiO 2 NPs group. However, a detrimental effect on color stability was observed when 5 wt% Ag NPs was added.

show abstract

Section: Discussionmentioning

confidence: 99%