Color Stability of Dental Reinforced CAD/CAM Hybrid Composite Blocks Compared to Regular Blocks

Kang, Yeong-Ah; Lee, Han Ah; Chang, Joseph S.; Moon, Wonjoon; Chung, Shin Hye; Lim, Bum-Soon

doi:10.3390/ma13214722

Cited by 11 publications

(18 citation statements)

References 43 publications

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“…A high risk of bias could be found in all RCTs except for one [ 36 ] regarding blinding, mostly owing to the fact that blinding of participants and personnel was not applied or declared. Randomization was clearly stated in only five investigations [ 15 , 19 , 27 , 28 , 36 ]. Eleven studies reported complete information regarding sample size calculations [ 12 , 14 , 16 , 19 , 24 , 25 , 26 , 28 , 36 , 37 , 38 ], eight regarding sampling technique [ 12 , 15 , 16 , 25 , 27 , 28 , 37 , 38 ], and two regarding the comparison (control) group [ 28 , 36 ].…”

Section: Resultsmentioning

confidence: 99%

“…Randomization was clearly stated in only five investigations [ 15 , 19 , 27 , 28 , 36 ]. Eleven studies reported complete information regarding sample size calculations [ 12 , 14 , 16 , 19 , 24 , 25 , 26 , 28 , 36 , 37 , 38 ], eight regarding sampling technique [ 12 , 15 , 16 , 25 , 27 , 28 , 37 , 38 ], and two regarding the comparison (control) group [ 28 , 36 ].…”

Section: Resultsmentioning

confidence: 99%

“…CAD/CAM composite blocks [ 12 ] (CCB) (also referred as resin nano-ceramic [ 13 , 14 , 15 , 16 , 17 , 18 , 19 ], resin ceramic [ 20 ], resin-based composites blocks [ 21 , 22 , 23 , 24 ], nanohybrid restorative materials [ 25 ], nano-hybrid ceramic [ 26 ], hybrid composites [ 27 ], hybrid ceramic [ 28 ]) have recently gained popularity as they are considered to offer a higher quality compared to composite used in a conventional manual procedure in both direct and indirect restorations. This is mainly due to the standardized industrial production processes, for which high temperature and/or high-pressure polymerization are used.…”

Section: Introductionmentioning

confidence: 99%

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Color Stability of Polymer-Based Composite CAD/CAM Blocks: A Systematic Review

et al. 2023

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Background: This systematic review aims to evaluate the color stability of resin composite CAD/CAM blocks (CCB) when submitted to staining solutions. Methods: A systematic search was performed on different databases (Embase, Medline, Scopus, Web of Science). Search terms were: ‘polymer infiltrated’, ‘polymer-based’, ‘resin nanoceramic’, ‘resin ceramic’, ‘hybrid composite’, ‘hybrid ceramic’, ‘composite ceramic’, ‘resin infiltrated’, ‘CAD-CAM’, ‘CAD/CAM’, ‘color stability’, ‘staining’, ‘staining susceptibility’, ‘color change’, ‘color difference’. Inclusion criteria: in vitro articles published in the English language until 18 September 2022 without initial time restriction evaluating the color stability of CCB when submitted to staining solutions. Exclusion criteria: studies investigating color change induced by smoke or whitening treatments; studies not including a clinical evaluation of the results using the thresholds for color perceptibility and acceptability. Risk of bias assessment using the QUIN tool. Findings: Out of the 378 initially retrieved articles, 19 were included in this review. They investigated 17 different CCBs and different artificial staining by liquid protocols, including coffee, red wine, tea, and cola. CCBs exceeded clinical acceptability thresholds for color shift in 18 out of 19 studies, with a significantly higher color stability than conventional hybrid resin-based composites (RBCs), and a significantly lower color stability than ceramic materials. The identified differences in CCBs in color stability can be attributed to the material’s composition, but also to the heterogeneity of staining procedures. Interpretation and clinical implication: Clinicians should be aware that, although to a lower degree when compared to RBCs used in direct or indirect procedures, CCBs undergo color changes to a higher degree in comparison to ceramic materials.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Color Stability of Polymer-Based Composite CAD/CAM Blocks: A Systematic Review

et al. 2023

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“…The bisphenol A glycol dimethacrylate (BIS-GMA) matrix is known to have a high water-absorption rate. On the other hand, absence of the hydroxyl side group in urethane dimethacrylate (UDMA) results in a less hydrophilic, more viscous matrix, which results in increased color stability of the milled material and is widely used in hybrid composite resin restorative materials [ 30 , 31 ]. The mechanism of coffee staining depends on the adsorption and sorption of the staining medium within the organic matrix of the material.…”

Section: Discussionmentioning

confidence: 99%

Stain Susceptibility of 3D-Printed Nanohybrid Composite Restorative Material and the Efficacy of Different Stain Removal Techniques: An In Vitro Study

Alharbi

Alharbi²,

Osman

2021

Materials

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Recent burgeoning development in material science has introduced a 3D-printable, nanohybrid composite resin restorative material. However, its performance has not yet been investigated. This study evaluates the stain susceptibility and efficacy of different stain removal techniques. A total of 120 labial veneers were fabricated using milling (n = 60) and SLA 3D-printing (n = 60). Based on the immersion media: coffee, tea and artificial saliva, each group was divided into three sub-groups (n = 20). Stain susceptibility was evaluated by calculating color difference (∆E00) at 12 and 24 days using a spectrophotometer against black and white backgrounds. Collected data were analyzed with ANOVA and Tukey’s post hoc test (p < 0.05). A significant interaction effect was found between the staining mediums and fabrication methods in both black and white backgrounds (p < 0.001). 3D-printed restorations showed significantly higher stain susceptibility than milled restorations (p < 0.001). Prolonged immersion time increased the color difference in both groups. In-office bleaching was more effective in stain removal in both 3D-printed and milled restoration groups. The susceptibility of the presented novel 3D-printed restorative material to color changes in different immersion mediums was clinically not-acceptable. The clinicians might expect the need to replace the restoration after 1–2 years and thus, recommendation for the use of such a material as a permanent restoration cannot be made but rather as a long-term temporary restoration.

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“…The use of CAD/CAM has rapidly increased in recent years due to its facilitation of indirect restorations ( 6 ). New CAD/CAM materials have been introduced specifically for esthetic restorations to overcome the disadvantages associated with the use of direct resin composites ( 8 ). The ceramic and resin-based composite blocks are used with CAD/CAM technology ( 6 , 7 ).…”

Section: Introductionmentioning

confidence: 99%

Effect of repolishing on the discoloration of indirect composite block, nanohybrid, and microhybrid resin composites

Uğurlu¹

2022

eor

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PurposeTo comparatively assess the color stability of indirect composite block, nanohybrid, and microhybrid resin composites after immersion in red wine and repolishing. Materials and MethodsSpecimens (2x7x12 mm) were prepared using an indirect composite block (Cerasmart), a nanohybrid (Ceram X), and a microhybrid (Charisma Smart) resin composite. The specimens' color was recorded based on the CIE L*a*b* system in a spectrophotometer (Spectroshade). After recording the initial color, the specimens were immersed in red wine for 3 hours per day for 15 days. The color measurement was done again. The specimens were repolished with a multistep polishing system (SuperSnap). The color was measured for the third time. The color change values (ΔE) were calculated with the L*, a*, and b* coordinates obtained at baseline, after the immersion procedure, and after repolishing. Statistical analyses were performed with one-way ANOVA, Tukey's post hoc, and paired t-tests (p=0.05). ResultsThe composite block presented the lowest ΔE value (p<0.05). No statistically significant difference was found between the ΔE values of the nanohybrid and microhybrid resin composites. The repolishing promoted a decrease in the color change of all three materials (p<0.05). The ΔE value of the composite block was clinically acceptable after repolishing. ConclusionThe composite block showed higher color stability. The staining resistance of the nanohybrid and microhybrid resin composites was not different. The repolishing decreased the discoloration of all three materials.

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Color Stability of Dental Reinforced CAD/CAM Hybrid Composite Blocks Compared to Regular Blocks

Cited by 11 publications

References 43 publications

Color Stability of Polymer-Based Composite CAD/CAM Blocks: A Systematic Review

Color Stability of Polymer-Based Composite CAD/CAM Blocks: A Systematic Review

Stain Susceptibility of 3D-Printed Nanohybrid Composite Restorative Material and the Efficacy of Different Stain Removal Techniques: An In Vitro Study

Effect of repolishing on the discoloration of indirect composite block, nanohybrid, and microhybrid resin composites

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