Evaluation of Bleaching on a CAD/CAM Hybrid Ceramic Material

Culic, Bogdan; Gasparik, Cristina; Varvara, Mihai; Culic, Carina; Dragos, Cristian; Silaghi-Dumitrescu, Laura; Dudea, Diana

doi:10.24193/subbchem.2017.1.05

Cited by 10 publications

(12 citation statements)

References 21 publications

(33 reference statements)

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“…Rough surfaces have the potential to cause secondary caries and periodontal inflammation and are more susceptible to staining than smooth surfaces 29,30 due to their retention capacity. 21,31,32 The threshold for clinically acceptable surface roughness value is 0.2 μm. 31,32 A spectrophotometer may be used to determine color coordinates of dental materials.…”

Section: Introductionmentioning

confidence: 99%

“…21,31,32 The threshold for clinically acceptable surface roughness value is 0.2 μm. 31,32 A spectrophotometer may be used to determine color coordinates of dental materials. 33 L represents the value (lightness or darkness) coordinate; a* represents the chromaticity coordinate for red-green, and b* represents the chromaticity coordinate for yellow-blue.…”

Section: Introductionmentioning

confidence: 99%

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Effect of home and over the contour bleaching on stainability of CAD/CAM esthetic restorative materials

Tınastepe

Malkondu

Iscan

et al. 2020

J Esthet Restor Dent

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Objective: To determine the effect of home and over the counter bleaching on the stainability of CAD/CAM restorative materials, and to correlate the surface roughness with discoloration. Material and Methods: Specimens were fabricated from feldspathic ceramic, an hybrid ceramic, a resin nano-ceramic, and lithium disilicate-reinforced glass ceramic. After baseline surface roughness (Ra1) and color measurement, each material was randomly divided into three groups according to bleaching regimen as Opalescence PF and; Opalescence Go; control. Then, the second color and surface roughness (Ra2) measurements were made. Thereafter, all specimens were immersed in a coffee solution for 12 days and the third color measurement was made. Color and whiteness change (CIELAB-ΔE ab , CIEDE2000-ΔE 00 , whiteness index-ΔWI D) were calculated after bleaching (ΔE1;ΔE 00 1;ΔWI D 1) and immersion in the coffee solution (ΔE2;ΔE 00 2;ΔWI D 2). Results: According to both CIELAB, CIEDE 2000 and WI D formulas, the highest mean ΔE1, ΔE2, ΔWI D 1, ΔWI D 2 values were observed for LAVA Ultimate groups while the lowest values were measured for e.max CAD groups. The findings also showed that there was a positively significant relationship between Ra2, and ΔE2 and ΔWI D 2. Conclusions: Type of restorative materials and bleaching agents had an impact on color change after bleaching and immersion in coffee. Clinical Significance: Home and over-the-counter bleaching agents may cause an increase in susceptibility of restorative materials to staining.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of home and over the contour bleaching on stainability of CAD/CAM esthetic restorative materials

Tınastepe

Malkondu

Iscan

et al. 2020

J Esthet Restor Dent

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“…The material consists of two interpenetrating networks, a glassceramic network and a methacrylate polymer network, with a proportion of 84% and 16% respectively (by weight). It is indicated for single restoration like crowns, veneers, inlay and onlays, and combines the advantages of both ceramics and composites (11).…”

Section: Introductionmentioning

confidence: 99%

Effect of CAD/CAM Technology System and Timing of Dentin Sealing Application on Hybrid Ceramic Endo-crowns Marginal Fit

Korsel

2019

Egyptian Dental Journal

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Purpose: The purpose of this study was to determine the influence of CAD/CAM system type and immediate dentin sealing (IDS) on the marginal fit of hybrid ceramic endocrowns. Material and Methods: Forty recently extracted lower molars were selected, and standardized prepared to receive endocrown restorations .All restorations were milled in hybrid ceramic (VITA ENAMIC® for CEREC®/ inLab®, VITA Zahnfabrik H. Rauter GmbH & Co.KG., Germany). The teeth were assigned to 4 groups (n=10) according to: (1) The type of CAD/CAM system: a) DOF system (DOF Inc., Seoul, South Korea) and b) CEREC inLab system (Sirona Dental Systems, Germany)], (2) The timing of dentin sealing. a) Immediate dentin sealing (IDS) and b) Delayed dentin sealing (DDS)].The vertical marginal gaps were then measured using measuring Stereomicroscope (Nikon Eclips E600, Tokyo, Japan). The obtained data were submitted to Kruskal-Wallistest (α=.05). Results: All marginal gap values found in this study were below the clinically acceptable value of restorations which is 120 µm. A significant difference was found between group 1 (DOF, IDS), group 2 (DOF ,DDS) and between group3 (CEREC , DDS), group 4 (CEREC, IDS) also between group 2(DOF, DDS) and 4 (CEREC, IDS). Conclusion: This study concluded that there is a significant effect of the CAD \CAM system and the timing of dentin sealing application on the marginal fit of the Hyprid ceramic endocrown restorations, where CEREC in-lab system and the immediate dentin sealing decrease the marginal adaptation .

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“…The user friendly and easy manufacturing of very precise esthetic restorations, in a short period of time, made CAD-CAM technology an optimal option for prosthetic treatment in a large range of indications. Nowadays, several highly sophisticated chairside and laboratory CAD-CAM systems have been introduced and are continuously improving [1,2,3].…”

Section: Introductionmentioning

confidence: 99%

Radiopacity analysis of some chairside computer-aided design-computer-aided manufacturing milling materials

Varvara¹,

Gasparik²,

Culic³

et al. 2019

Studia UBB Chemia

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In this study, the radiopacity of chairside Computer-Aided Design-Computer-Aided Manufacturing (CAD-CAM) milling materials was evaluated in comparison with dental structures. 105 specimens of 7 different thicknesses from 5 different types of chairside CAD-CAM milling materials: feldspar ceramic, hybrid ceramic, lithium disilicate glass-ceramic, zirconiareinforced lithium silicate ceramic and a resin nano-ceramic were used for this in vitro study. Digital radiographs were obtained using an aluminum step wedge, a specimen of a tooth slice and 3 specimens from each material. Radiodensity was determined for each material using dedicated software. Lava Ultimate and Vita Suprinity were found as having higher radiopacity, whilst Vita Mark II and Vita Enamic were lower in radiopacity in comparison with dental structures. The radiodensity of Emax CAD was between enamel and dentine. Radiopacity of each CAD-CAM milling material was different and both material's type and thickness significantly affected the radiopacity.

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Evaluation of Bleaching on a CAD/CAM Hybrid Ceramic Material

Cited by 10 publications

References 21 publications

Effect of home and over the contour bleaching on stainability of CAD/CAM esthetic restorative materials

Effect of home and over the contour bleaching on stainability of CAD/CAM esthetic restorative materials

Effect of CAD/CAM Technology System and Timing of Dentin Sealing Application on Hybrid Ceramic Endo-crowns Marginal Fit

Radiopacity analysis of some chairside computer-aided design-computer-aided manufacturing milling materials

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