Abrasion of restorative materials by toothpaste

Heath, J R; Wilson, H.J.

doi:10.1111/j.1365-2842.1976.tb00936.x

Cited by 73 publications

(73 citation statements)

References 8 publications

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“…The top of enamel surfaces were submitted to 10,000 cycles of brushing for 90 min, 25,000 cycles of brushing for 4 h 15 min, 50,000 cycles of brushing for 7 h 30 min and a total of 100,000 cycles of brushing for 15 h, simulating 4,2 years of brushing in oral cavity 20 . After each cycles of brushing, the samples were kept into deionized water at 37°C, up to the time to microhardness analysis.…”

Section: Brushing Protocolsmentioning

confidence: 99%

Effects of fluoride and Aloe vera tooh gel in artificial white spot lesions in vitro

Silva

Fonseca

Sales

et al. 2016

RGO, Rev. Gaúch. Odontol.

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ObjectiveThe aim of this study was to evaluate the effects of toothbrushing using a fluoride toothpaste and Aloe vera tooth gel on artificial white spot lesions through the Knoop microhardness (KHN) analysis. Methods Sound bovine enamel samples (2 mm/diameter and 2 mm/depth) were prepared and immersed in artificial white spot lesion for 24 h. The preparation of artificial white spot lesions was performed by pH-cycling process. The samples were randomly divided into two groups (n=20), according the dentifrice used: containing fluoride (Colgate Total 12) or Aloe vera (Forever Bright Aloe Vera Toothgel

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Section: Brushing Protocolsmentioning

confidence: 99%

Effects of fluoride and Aloe vera tooh gel in artificial white spot lesions in vitro

Silva

Fonseca

Sales

et al. 2016

RGO, Rev. Gaúch. Odontol.

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“…For this purpose a number of wear testing machines simulating toothbrushing mostly with commercial toothpastes have been described and used for testing of the wear resistance of restorative materials [11][12][13][14][15][16][17] . Although the first nanocomposite resins were introduced into dental practice several years ago, there is not much information available on their resistance to toothbrushing wear 3,18) .…”

Section: It Is Important To Evaluate the Performance Of Newmentioning

confidence: 99%

Resistance of nanofill and nanohybrid resin composites to toothbrush abrasion with calcium carbonate slurry

et al. 2009

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The aim of this study was to investigate the wear of four nanofilled resin composites using simulated toothbrushing for 50,000 cycles with calcium carbonate slurry. The depth of abrasion and roughness (Ra) were measured after each 10,000 brushing cycle. The surface texture of the worn samples was examined by SEM.The wear depths of the nanofill Filtek Supreme XT (FIL), the nanohybrides Grandio (GRA), Tetric EvoCeram (TET), and Venus Diamond (VED) increased linearly with numbers of brushing cycles or approximately 80, 12, 600, and 60 µm, respectively after 50,000 strokes. Surface roughness showed virtually no change between 10,000 and 50,000 brushing cycles; the ranking order was TET < FIL < GRA < VED. FIL showed rather uniform abrasion with nanoclusters protruding from the surface. TET was very smoothly abraded without signs of debonding of the prepolymerized particles, whereas GRA and VED showed pronounced wear of the matrix polymer surrounding larger glass filler particles.

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“…[2][3][4][5][6][7][8][9] However, there is no consensus, which machine might be most suitable. Although quantifiable evaluation parameters for the extent of wear and the morphology of the worn surfaces are available, some published articles are solely descriptive and thus less suitable for reasonable estimation and prediction of the effects of toothbrushing on resin composites.…”

Section: Introductionmentioning

confidence: 99%

Toothbrush Abrasion of Resin Composites with Different Filler Concepts

Kyoizumi¹,

Kanehira²,

Finger³

et al. 2012

World Journal of Dentistry

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Purpose: To investigate the effect of tooth brushing wear with and without calcium carbonate slurry on four commercial resin composites based on different filler concepts. Materials and methods:One nanofiller composite MI FIL (MFI, GC), one conventional hybrid type Venus (VEN) and two nanohybrid composites Venus Diamond (VED) and Venus Pearl (VEP) all from Heraeus Kulzer were examined. Forty beam-shaped specimens (12 × 3 × 3 mm) from each product were prepared and subdivided in two equal groups for pregrinding on SiC paper #600 and #4000 respectively. Ten specimens of each pre-ground group were subjected to toothbrush abrasion with calcium carbonate slurry, and 10 to toothbrushing with water only. The samples were submitted to five subsequent runs of 10,000 brushing strokes. Depth of wear and surface roughness (Ra) were measured with a profilometer after each 10 k strokes. Specimens after 50 k strokes were assessed by SEM. Additionally, the KHN (0.25 N/15 s) and the degree of conversion (DC) were determined. Data analysis was done by linear regression and ANOVA followed by Tukey's post-hoc test (p < 0.05). Results: Toothbrushing with abrasive slurry produced significantly different wear depths: VEN > MIF > VEP > VED.Linear relationships between depth of wear and number of cycles (r 2 > 0.94) were established for each material. Pregrinding with SiC #4000 resulted in less wear than pregrinding with #600. Ra figures were much higher for VED than for the other materials tested. MIF and VEN were uniformly abraded, whereas the largest glass fillers in VED protruded from the surroundings and the prepolymer particles in VEP were deeper abraded than the bulk of the material. Toothbrushing with water only revealed not measurable wear. Roughness Ra was practically unchanged when compared with the preground samples before challenging with toothbrushes. Ranking by KHN was: MIF < VEN, VEP < VED, by DC: MIF < VEN < VEP < VED. Conclusion:Filler concepts and monomer compositions affect wear and roughness of resin composites when tooth brushed with abrasive slurry. Toothbrushing without abrasive medium produced neither wear nor roughness. Careful polishing of resin composite restorations is an important determinant of wear and surface roughness.

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Abrasion of restorative materials by toothpaste

Cited by 73 publications

References 8 publications

Effects of fluoride and Aloe vera tooh gel in artificial white spot lesions in vitro

Effects of fluoride and Aloe vera tooh gel in artificial white spot lesions in vitro

Resistance of nanofill and nanohybrid resin composites to toothbrush abrasion with calcium carbonate slurry

Toothbrush Abrasion of Resin Composites with Different Filler Concepts

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