Effect of nano-zinc oxide and fluoride-doped bioactive glass-based dentifrices on esthetic restorations

Abstract

Background. Over time, improvements have been made in dentifrices and recently bioactive components have been added. It is important to address the abrasivity of these dentifrices, which can cause wear of dental restorative materials. Objectives. A comparative study was conducted to examine the effects of commercial and experimental dentifrices upon commonly used dental restorative materials. Material and methods. Three types of experimental dentifrices were prepared with variable concentrations of fluoride-based bioactive glass, nano-zinc oxide (ZnO) and titanium dioxide (TiO 2) powder as active ingredients. A custom-made toothbrush simulator was used with variable cycles (0; 5,000; and 10,000) to treat samples prepared from dental restorative materials. Prior to and after the treatment cycles, the physical properties of the restorative materials were assessed and compared with commercial toothpaste through micro-hardness, surface roughness and color stability testing. Results. The restorative materials showed an insignificant difference in terms of micro-hardness before and after the treatment with all dentifrices. A significant difference was observed in terms of surface roughness. With respect to color stability, there has been observed an insignificant difference between the control and the other 3 experimental dentifrices for all the cycles-pre, post-5,000 and post-10,000. Conclusions. Experimental fluoride-containing bioactive dentifrices caused a change in the restorative material properties; however, it was minimal and the properties still met the requirements for clinical applications.

Color stability of bleached tooth enamel brushed with different stain‐removing toothpastes

“…It has been reported that the greater the Ra change, the greater the effect of the toothpaste on stain removal. 10,16,17,19 The results for OPW and CDW were consistent with this observation. 10,19 Although AWP slightly increased the Ra, it did not remove stains.…”

“…Some toothpastes contain abrasives, such as silica, hydrated silica, calcium carbonate, calcium pyrophosphate, alumina, and sodium bicarbonate, 2 and toothbrushing with these toothpastes has been reported to be effective in removing stains. [8][9][10][11][12][13][14][15][16][17][18] However, many reports suggest that the use of abrasives increases the roughness of the enamel surface. [8][9][10]13,19,20 Previous studies have shown that toothpastes containing hydrated silica, alumina, and calcium hydroxide increase the enamel roughness.…”

Nanoparticles as Anti-Microbial, Anti-Inflammatory, and Remineralizing Agents in Oral Care Cosmetics: A Review of the Current Situation

“…Therefore, the relevant properties in the achieved products (toothpaste and mouthwash) are dependent mainly on the nanosized dimension [3,4,12,[27][28][29][30][31][32][33][34]. However, to our knowledge, no studies have focused on NPs ageing or reorganization in relation to their stability in the oral care field.…”

“…The incorporation of ZnO NPs in toothpaste and mouthwash enables the fighting of gingivitis due to bactericidal effects [32,160]. Toothpaste containing ZnO has also been demonstrated to have, on an extracted tooth, a positive effect on the dentin by reducing demineralization [161].…”

Effectiveness of Thymoquinone and Fluoridated Bioactive Glass/Nano-Oxide Contained Dentifrices on Abrasion and Dentine Tubules Occlusion: An Ex Vivo Study

“…2,3 A desire to improve the quality of oral hygiene came up with many types of dentifrices, where a wide range of at-home desensitizing products including toothpastes, mouthwashes, and chewing gums are available to treat sensitized tooth structure. 4,5 However, none have reliably demonstrated complete elimination of hypersensitivity because the occluding materials formed were not constituents of natural dentin and regular application of these materials is required. 6,7 Recent research has highlighted the relevance and necessity of biomimetic materials such as bioactive glasses (BG) in treating DH.…”