Masking the Discolored Enamel Surface with Opaquers before Direct Composite Veneering

Spaveras, Andreas; Osela, Vjero; Αναγνώστου, Μαρία; Αντωνιάδου, Μαρία

doi:10.15226/jdodt.2015.00143

Cited by 8 publications

(7 citation statements)

References 10 publications

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“…Maria et al presented a study to explain the colour stability of two selfadhesive composites and four methacrylate composites before and after water storage. After submerging the composites for 30 days, the delta E values were recorded [25]. However, the current study has limitations, such as a small sample size and the use of only one type of restorative material.…”

Section: Resultsmentioning

confidence: 98%

Effect of Thermocycling on Colour Stability of Alkasite Restorative Material (Cention N) - An In Vitro Study

Kishore

Ganesh

Jayalakshmi

2022

JPRI

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Introduction: Cention N is an alkasite based dental restorative material, it is far less expensive unlike composite materials, it has fluoride releasing property and the strength of cention N is comparable to that of dental amalgam restorations. Colour stability is one of the major and important characteristics in dentistry, dental restoration and esthetics. The aim of the study is to evaluate the colour stability of alkasite restorative material (Cention N) before and after thermocycling. Materials and Methods: Eight disc shaped samples of alkasite restorative material Cention N with 2 mm of thickness were prepared using a customised mould. After the disc sample preparation, they were numbered for identification and color stability was measured by using Vita easy shade advance spectrophotometer. L, a and b values were obtained before the thermocycling procedure. 1000 cycles of thermocycling was done which is equal to 6 months. The thermocycler used was TC 4 SD Mechatronik. The colour stability value after thermocycling was again determined using the vita easy shade spectrophotometer. Control group samples were not subjected to thermocycling. The colour stability values prior and after thermocycling were obtained and tabulated. Results: Thermocycled cention N samples had low delta E values when compared to that of non thermocycled samples. Statistical analysis was done using spss software and independent t test was done. P value was found to be 0.616, showing that it is statistically insignificant. Conclusion: From this research we can conclude that thermocycling procedure has an effect on the colour stability of the cention N material. Thermocycled cention N samples had better color stability when compared to non thermocycled cention N samples.

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Section: Resultsmentioning

confidence: 98%

Effect of Thermocycling on Colour Stability of Alkasite Restorative Material (Cention N) - An In Vitro Study

Kishore

Ganesh

Jayalakshmi

2022

JPRI

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“…According to the literature, masking ability may be measured by the color differences in resin composites against black and white backgrounds or by calculating the color difference between a standard reference and the resin composite placed over discolored backgrounds 13,24 . Considering the findings of this scoping review, most studies evaluated the masking ability over a black background and the C4 background shade, 5,6,13,16,17 which are considered extremely challenging situations 12,24 . In addition, an in vitro study used A2, A3, A3.5, C2, C3, and C4 ceramic discs to simulate conditions more commonly observed in clinical practice 6 .…”

Section: Discussionmentioning

confidence: 99%

“…13,24 Considering the findings of this scoping review, most studies evaluated the masking ability over a black background and the C4 background shade, 5,6,13,16,17 which are considered extremely challenging situations. 12,24 In addition, an in vitro study used A2, A3, A3.5, C2, C3, and C4 ceramic discs to simulate conditions more commonly observed in clinical practice. 6 The case report included in this review evaluated the masking ability of resin composite restorations over severally discolored dental substrates 7 resulting from trauma or endodontic treatments.…”

Section: Discussionmentioning

confidence: 99%

“…Conservative treatments performed in line with the minimal intervention approach should be preferred when dental discolorations occur in the anterior region. However, the masking of discolored backgrounds poses a challenge because of the limited space available for layering the resin composite, given the inherent characteristics of these materials 12 . Moreover, many factors may affect the final result of the restoration, such as the background color, the variety of shades, and the different degrees of translucency of the restorative systems 13–17 …”

Section: Introductionmentioning

confidence: 99%

“…However, the masking of discolored backgrounds poses a challenge because of the limited space available for layering the resin composite, given the inherent characteristics of these materials. 12 Moreover, many factors may affect the final result of the restoration, such as the background color, the variety of shades, and the different degrees of translucency of the restorative systems. [13][14][15][16][17] Different methodologies have been used to evaluate the masking ability of dental materials.…”

mentioning

confidence: 99%

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Masking ability of resin composites: A scoping review

Perez

Gaidarji

Righes

et al. 2022

J Esthet Restor Dent

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Objective: To map the existing evidence regarding the masking ability of resin composites.Overview: The literature search was conducted electronically, based on the PRISMA Extension for Scoping Reviews-online protocol at https://osf.io/m2h67/ with no language or time restrictions. Two independent reviewers conducted the screening, and a third reviewer was consulted in case of disagreement. Studies that evaluated resin composite masking ability regardless of background, application technique, thickness, or number of layers were selected. The search found 2995 potentially eligible studies. After removal of duplicates (657), irrelevant articles (2323), 15 citations met the eligibility criteria based on title and abstract, and eight studies were included based on full text analysis (seven in vitro, and one case report). Acceptable masking ability is obtained by one layer of opaque shade resin composite or by the layering technique. A black background is masked with 1.0-to 2.0 mm-thick layers of opaque shade resin composites. Masking of the C4 background is achieved with one layer of 0.5-to 1.5 mm-thick opaque shade resin composite or by the layering technique using different combinations of enamel body and dentin shades with a final thickness of 1.5 mm.Conclusions: Acceptable masking of C4 shade background is achieved with one layer of opaque shade composite at least 0.5 mm-thick or by different combinations of the layering technique, with a final thickness of 1.5 mm. Acceptable masking of the black background of the oral cavity is achieved with a resin composite of at least 1.0 mm opaque shade.Clinical Significance: The thickness of the resin composite layer required to achieve adequate masking is variable and depends on the translucency/opacity of the tested resin composites and the background shade.

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The optical behavior of nano filled resin composite loaded with graphene oxide nanoparticles

fathy,

Haroun,

Riad

2024

BMC Oral Health

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Objectives Assessment of the effect of incorporation of graphene oxide nanoparticles (GONPs), different concentrations into resin composite with different thicknesses on its color modulation. Materials and methods GONPs were prepared using the chemical reduction method and characterized using a transmission electron microscope and X-ray diffraction. The minimum concentrations of GONPs that provided the most effective antibacterial action (0.05 wt% and 0.2 wt%.) were prepared to be the concentration added to the tested resin composite. Calculations were done to find the required volume of the GONPs solution needed according to the mass of the resin composite. 70 nano-filled resin composite discs were prepared with 10 mm diameter × 3 mm height. 10 resin composite discs were prepared without GONPs incorporation and served as a control (G0). The other 60 resin composite specimens were divided into 2 equal groups (G1& G2) according to the concentration of the loaded nanoparticles in the specimens. Each group was divided into 3 equal subgroups according to the thickness of the resin composite containing GONPs; [T1: GONPs dispersed in the bottom 1 mm of the disc, while the top 2 mm of the disc was of resin composite only. T2: GONPs dispersed only in the bottom 2 mm of the disc and T3: GONPs dispersed in the total thickness of the disc (3 mm)]. ∆E values were calculated using a Vita Easy shade Spectrophotometer. Results Incorporation of GONPs into resin composite induced significant color change and among all the 6 experimental groups, G1T1 group (of 0.05 wt% concentration GONPs dispersed only in the bottom 1 mm of the disc) showed a non-significant color change. Conclusion Dispersion of GONPs has a detectable effect on the color change of resin composite. Meanwhile, dispersion in low concentration for only the bottom 1 mm thickness of resin composite has an undetectable effect on its color.

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Masking the Discolored Enamel Surface with Opaquers before Direct Composite Veneering

Cited by 8 publications

References 10 publications

Effect of Thermocycling on Colour Stability of Alkasite Restorative Material (Cention N) - An In Vitro Study

Effect of Thermocycling on Colour Stability of Alkasite Restorative Material (Cention N) - An In Vitro Study

Masking ability of resin composites: A scoping review

The optical behavior of nano filled resin composite loaded with graphene oxide nanoparticles

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