Polishing and whitening properties of toothpaste containing hydroxyapatite
Abstract
Toothpastes containing hydroxyapatite (HA-toothpaste) have demonstrated efficacy in preventing caries, treating hypersensitivity and curing periodontal diseases, however, their effects on whitening teeth have not been investigated. In this study, the polishing and whitening properties of hydroxyapatite contained toothpastes were evaluated in a combined experimental and clinical study. The polishing properties were evaluated in artificial teeth by polishing with different toothpastes, while the brightening and whitening properties were examined in volunteers using two colorimeters with two specially made fiberscopes. The results revealed that the addition of hydroxyapatite to toothpaste did not alter its polishing properties, while it did result in a marked increase in tooth-whiting. It was also found that the brightening and whitening properties increased as the amount of hydroxyapatite in the toothpaste increased. It is concluded that toothpaste containing hydroxyapatite are effective at whitening tooth and that whitening was not due to their polishing effect on tooth surface.
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There was a dose-response of whitening when 3% HAP was compared to 15% HAP.
“there was a dose-response of whitening when 3% HAP was compared to 15% HAP [49].”
From Tooth Whitening with Hydroxyapatite: A Systematic Review (2023) · cites this paper as [49]
The systematic search for in vivo evidence resulted in six studies ranging in quality from very low to moderate.
“The results of the systematic search for in vivo evidence resulted in six studies [42,49,50,51,52,53] ranging in quality from very low to moderate (Table 3).”
From Tooth Whitening with Hydroxyapatite: A Systematic Review (2023) · cites this paper as [49]
In this review, 0.25% HAP was not very effective in tooth whitening.
“in this review, we note that 0.25% was not very effective in tooth whitening, whereas there was a dose-response of whitening when 3% HAP was compared to 15% HAP [49].”
From Tooth Whitening with Hydroxyapatite: A Systematic Review (2023) · cites this paper as [49]
For Niwa et al., 2001, the GRADE assignment is LOW, and HAP-whitening effect was confirmed (15% HAP more efficient than 3% HAP).
“LOWHAP-whitening effect confirmed (15% HAP more efficient that 3% HAP).”
From Tooth Whitening with Hydroxyapatite: A Systematic Review (2023) · cites this paper as [49]
The conclusion of the Niwa et al. study was that tooth whitening was not achieved through any abrasiveness that a higher concentration of HAP might have produced.
“The conclusion of the Niwa et al. study [49] was that tooth whitening was not achieved through any abrasiveness that a higher concentration of HAP might have produced.”
From Tooth Whitening with Hydroxyapatite: A Systematic Review (2023) · cites this paper as [49]
A dose-response relationship between HAP-concentration and both whitening effect and adhesion to the enamel is likely.
“Therefore, a dose-response-relationship between HAP-concentration and both whitening effect and adhesion to the enamel is likely, as shown in these studies [49,64,65].”
From Tooth Whitening with Hydroxyapatite: A Systematic Review (2023) · cites this paper as [49]
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- Authors
- Niwa, M., Sato, T., Li, W., Aoki, H., Aoki, H., & Daisaku, T.
- Affiliations
- Nippon Dental University (JP)
- West China Medical Center of Sichuan University (CN)
- International Apatite Institute Co., Ltd. (Japan) (JP)
- Corresponding author
- Niwa, Motoo
- Sato, Tsutomu
- Venue
- Journal of Materials Science: Materials in Medicine
- Published
- 2001-03
- Volume
- 12
- Issue
- 3
- Pages
- 277-281
- ISSN
- 0957-4530 (ISSN-L)
- 1573-4838
- OpenAlex
- W1553428001
- Cited by
- 65
- References
- 5
- Citations by year
- 2026: 3 · 2025: 2 · 2024: 1 · 2023: 3 · 2022: 4 · 2021: 4 · 2020: 6 · 2019: 5 · 2018: 3 · 2017: 1 · 2016: 4 · 2015: 2 · 2014: 2 · 2013: 6 · 2012: 1
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Journal of Materials Science Materials in Medicine (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Dentistry › Orthodontics › Dental Erosion and Treatment
- Health Sciences › Dentistry › Periodontics › Dental Health and Care Utilization
- Health Sciences › Dentistry › Orthodontics › Dental materials and restorations
- Keywords
- hydroxyapatite, toothpaste, tooth bleaching, dental polishing, artificial teeth, colorimetry
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