Investigations on the effects of mouthrinses on the colour stability and surface roughness of different dental bioceramics

Abstract

PURPOSEIn this study, three bioceramic materials, [IPS Empress CAD (Ivoclar), IPS e.max CAD (Ivoclar), and Lava Ultimate CAD (3M ESPE)] were treated with three commercial mouthrinses [Listerine, Tantum Verde, and Klorhex]; and changes in colour reflectance and surface roughness values were then quantitatively assessed.MATERIALS AND METHODSOne hundred and twenty ceramic samples, with dimensions of 2 × 12 × 14 mm, were prepared and divided into nine sample groups, except three control samples. The samples were immersed in the mouthrinse solutions for 120 hrs, and changes in colour reflectance and surface roughness values were measured by UV light spectrophotometry (Vita Easyshade; VITA Zahnfabrik) and by profilometer device (MitutoyoSurftest SJ-301), respectively. The change of surface roughness was inspected by Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM).RESULTSThere was a positive correlation between the ΔE and increase in the surface roughness. Two of the ceramic materials, IPS Empress and Lava Ultimate, were affected significantly by the treatment of the mouthrinse solutions (P<.05). The most affecting solution was Tantum Verde and the most affected material was Lava Ultimate. As expected, the most resistant material to ΔE and chemical corrosion was IPS e max CAD among the materials used.CONCLUSIONThis work implied that mouthrinse with lower alcohol content had less deteriorating effect on colour and on the surface morphology of the bioceramic materials.

In Vitro Effect of Alcohol and Non-Alcohol Based Mouth Rinses on Color Stability of CAD/CAM Resin Ceramic and Feldspathic Ceramics

“…The results of the current study are not in agreement with Soygun et al who reported increased color changes in bio-ceramic materials with mouth rinses with higher alcohol content (37) . The lower ΔE values recorded in the current study might be attributed to the differences between the types of materials (resin composite vs. ceramic) and duration of contact with the solutions and surface texture quality (38,39) .…”

Effect of mouthrinses on color stability of monolithic zirconia and feldspathic ceramic: an in vitro study

“…Groups A and B were randomly divided into three subgroups each ( n = 12 per group) according to the solutions used and then the baseline color measured. The sample size was determined to n = 12 in each subgroup according to comparison of mean ΔE between Listerine®/ Chlorhexidine with distilled water [ 27 ]; α = 0.05 and power (1-β) = %80.We treated the prepared discs as follows (Fig. 2 ):

Fig.

…”

Colour stability and surface properties of high‐translucency restorative materials for digital dentistry after simulated oral rinsing

“…Several studies have reported that acidic solutions, including cola, orange juice, red wine, coffee, and gastric acid, can change the optical properties and surface roughness of toothcoloured dental restorative materials (10)(11)(12)(13)(14)(15). In addition, several oral hygiene solutions currently on the market can also affect the colour of dental restoration materials (16)(17)(18). Indeed, several brands of mouthwashes have a blue or green colour, which apparently is added to make them more visually appealing.…”