The measurement in vitro of dentine abrasion by toothpaste

Ashmore, H; Nj, Van Abbé; Sj, Wilson

doi:10.1038/sj.bdj.4802876

Cited by 44 publications

(33 citation statements)

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“…The mean depth of the brushing groove was calculated with specially designed software. Profilometrical determination of brushing abrasion is favored by several investigators since this procedures allows for standardized and reproducable evaluation of dental hard tissue wear [Ashmore et al, 1972;Slop et al, 1983;Valk et al, 1986;Noordmans et al, 1991].…”

Section: Discussionmentioning

confidence: 99%

Brushing Abrasion of Eroded Dentin after Application of Sodium Fluoride Solutions

1998

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The aim of the present in vitro study was to evaluate the influence of sodium fluoride solutions on brushing abrasion of eroded dentin. Dentin specimens were prepared from 60 bovine incisors. The specimens were embedded in acrylic resin, ground flat, polished and subsequently covered with tape exposing an area of 1.8 mm × 10.0 mm in the center of the exposed dentin. The samples were alternatingly stored in a demineralizing solution (5 min) and a remineralizing solution (1 min) for 5 times. The erosive soft drink Sprite light® served as a demineralizing solution and artificial saliva was used as a remineralizing solution. Prior to storage in artificial saliva 15 specimens were each treated for 1 min with 250 and 2,000 ppm fluoride solution, respectively. Fifteen specimens were treated with distilled water instead of the fluoride solution (= eroded controls). The remaining samples were neither eroded with the soft drink nor fluoridated (= uneroded controls). After each immersion in artificial saliva the specimens were submitted to abrasion in a toothbrushing machine. After 5 demineralization-remineralization brushing cycles the total amount of tooth wear due to erosion and subsequent abrasion was profilometrically evaluated. Statistical analysis revealed the significantly lowest wear in the uneroded controls and the highest amount of abrasion in the eroded controls. Application of the fluoride solutions increased the wear resistance of the eroded dentin specimens, showing significantly better protection by the high-concentration compared to the low-concentration solution. The susceptibility to abrasion of the eroded dentin specimens treated with the high-concentration fluoride solution did not differ significantly from the uneroded dentin samples. It is concluded that application of 2,000 ppm sodium fluoride solutions immediately before toothbrushing significantly reduces abrasion of eroded dentin in vitro.

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Section: Discussionmentioning

confidence: 99%

Brushing Abrasion of Eroded Dentin after Application of Sodium Fluoride Solutions

1998

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“…4,5 A patient's reasons for wearing a partial denture are ascribed to improved appearance surface has a complex three-dimensional shape, for example that of the occlusal surface of a molar tooth, this reconstruction is difficult if not possible. 25 Many instruments and techniques have been used in the metrology of surfaces including contact profilometry, close range photogrammetry using a photographic camera, a reflex microscope or a scanning electron microscope. These methods all have advantages and disadvantages related to their ease of use, accuracy and range of measurement.…”

Section: Research Prostheticsmentioning

confidence: 99%

The size of occlusal rest seats prepared for removable partial dentures

2000

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“…The method is discussed in detail by Ashmore, Van Abbe, and Wilson. 2 Hardness tests were done on a miniload microhardness testere using a Knoop diamond pyramid indenter loaded at 0.5 N.…”

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confidence: 99%