Toothbrushing alters the surface roughness and gloss of composite resin CAD/CAM blocks

Kamonkhantikul, Krid; Arksornnukit, Mansuang; Lauvahutanon, Sasipin; Takahashi, Hidekazu

doi:10.4012/dmj.2015-228

Cited by 39 publications

(47 citation statements)

References 23 publications

(38 reference statements)

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“…The results showed that Shofu Block HC had a significantly lower surface gloss and higher surface roughness compared with the other three materials, rejecting our first null hypothesis. Our findings were comparable to the findings of previous studies investigating the effect of brush wear (8,9). Both Shofu Block HC and Estelite Block use urethane dimethacrylate (UD-MA) and triethylene glycol dimethacrylate (TEGDMA) as matrix resins and overall contain similar components.…”

Section: Discussionsupporting

confidence: 92%

Effect of professional dental prophylaxis on the surface gloss and roughness of CAD/CAM restorative materials

Sugiyama¹,

Kameyama²,

Enokuchi³

et al. 2017

J Clin Exp Dent

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BackgroundThis study aimed to evaluate the effect of dental prophylaxis on the surface gloss and roughness of different indirect restorative materials for computer-aided design/computer-aided manufacturing (CAD/CAM): two types of CAD/CAM composite resin blocks (Shofu Block HC and Estelite Block) and two types of CAD/CAM ceramic blocks (IPS Empress CAD and Celtra DUO).Material and MethodsAfter polishing the CAD/CAM blocks and applying prophylaxis pastes, professional dental prophylaxis was performed using four different experimental protocols (n = 5 each): mechanical cleaning with Merssage Regular for 10 s four times (Group 1); four cycles of mechanical cleaning with Merssage Regular for 10 s and Merssage Fine for 10 s (Group 2); four cycles of mechanical cleaning with Merssage Regular for 10 s and Merssage Fine for 30 s (Group 3); and mechanical cleaning with Merssage Fine for 10 s four times (Group 4). A glossmeter was used to measure surface gloss before and after mechanical cleaning, and a contact stylus profilometer was used to measure surface roughness (Ra).ResultsPolishing with prophylactic paste led to a significant reduction in surface gloss and increase in surface roughness among resin composite blocks, whereas the polishing-related change in surface gloss or roughness was smaller in Celtra DUO, a zirconia-reinforced lithium silicate block.ConclusionsChanges in surface gloss and roughness due to polishing with a prophylactic paste containing large particles were not improved by subsequent polishing with a prophylactic paste containing fine particles. Key words:CAD/CAM, professional dental prophylaxis, prophylactic paste, surface gloss, surface roughness.

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Section: Discussionsupporting

confidence: 92%

Effect of professional dental prophylaxis on the surface gloss and roughness of CAD/CAM restorative materials

Sugiyama¹,

Kameyama²,

Enokuchi³

et al. 2017

J Clin Exp Dent

View full text Add to dashboard Cite

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“…As a result, the impact stress was not concentrated on the filler alone and was distributed and absorbed by both the housing resin matrix and multiple fillers. This situation led to increased stability of the fillers and less stress on the bond at the filler/matrix interface (35,36).…”

Section: Discussionmentioning

confidence: 99%

Effect of water-jet flossing on surface roughness and color stability of dental resin-based composites

Alharbi¹,

Farah²

2020

J Clin Exp Dent

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Background: The purpose of this in vitro study was to investigate the effects of water-jet flossing on the color stability and surface roughness of five resin-based composites. Material and Methods: Five commercially available composite resins were studied. Nine disc-shaped specimens (6x2mm) were fabricated from each composite. The specimens were randomly allocated into three groups and three different treatments were performed on each group: storage in water (control group), water-jet flossing using 50 Psi water pressure, and water-jet flossing using 100 Psi water pressure. The water-jet flossing was performed in a standardized manner using a Waterpik® Aquarius® water flosser. Color and roughness were measured at baseline and at the end of 30 minutes of treatment, which is approximately equivalent to 5 years of simulated water-jet flossing for 1 minute once a day. The data were statistically analyzed using two-way analysis of variance (ANOVA) with Bonferroni and Tukey's post-hoc tests. Results: No significant color change was found after 5 simulated years of water-jet flossing, irrespective of composite type and water-flossing pressure setting (p > 0.05). Furthermore, none of composite specimens showed any significant surface roughness changes except for the two composites with spherical filler specimens in the 100 Psi treatment group. These composites exhibited a significant increase in surface roughness compared with the nano-filled composite (p = 0.001 and p = 0.006). However, the differences were clinically acceptable (≈0.2 µm). Conclusions: In terms of surface roughness and color, water-jet flossing is safe to be used on composite restorations within the settings of this study.

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“…They combine in their composition ceramic particles embedded in a polymeric matrix achieving a combination of properties of ceramics and composites, moreover such materials behave biomimetically due to physical properties similar to enamel and dentine that encourage ongoing studies on their microstructure, surface and mechanical properties. (5)(6)(7)(8)(9)(10) The consequences of ceramic degradation are coarseness of the exposed surface, increase in plaque accumulation and wear to antagonist materials or teeth. In addition, an increase in surface roughness of ceramics may decrease strength, and affect the clinical success of ceramic restorations.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Wear and Surface Roughness of Glass and Hybrid Ceramics

Fadl

Khaled²

2018

Egyptian Dental Journal

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Aim:The purpose of this invitro study was to evaluate wear resistance and surface roughness of two hybrid ceramics in comparison to lithium disilicate glass ceramic before and after mechanical abrasion. Materials and methods:Thirty samples were divided according to material of construction into three groups, group (1): Lithium disilicate glass ceramic (IPS e.max, n=10), group (2): Resin nanoceramic (Lava Ultimate, n=10), group (3): Polymer infiltrated ceramic (Vita Enamic, n=10). All samples were fabricated out of CAD CAM ceramic blocks, weighed and evaluated for surface roughness before and after mechanical wear. Results:Resin nanoceramic (Lava ultimate), showed significantly low weight loss and surface roughness change after mechanical wear than IPS e.max. The polymer infiltrated ceramic (Vita Enamic) showed significantly high surface roughness than Resin nanoceramic (Lava ultimate), while IPS e.max showed the highest weight loss and surface roughness change. Conclusions:Resin nanoceramics revealed highest mechanical wear resistance contributed by terms of weight loss and surface roughness change, while Lithium disilicate glass ceramic showed the least wear resistance.

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Toothbrushing alters the surface roughness and gloss of composite resin CAD/CAM blocks

Cited by 39 publications

References 23 publications

Effect of professional dental prophylaxis on the surface gloss and roughness of CAD/CAM restorative materials

Effect of professional dental prophylaxis on the surface gloss and roughness of CAD/CAM restorative materials

Effect of water-jet flossing on surface roughness and color stability of dental resin-based composites

Mechanical Wear and Surface Roughness of Glass and Hybrid Ceramics

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