Tooth whitening effect of toothpastes containing nano-hydroxyapatite

B. I. Kim, S. H. Jeong, S. O. Jang, K. N. Kim, H. K. Kwon, Y. D. Park

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The aim of this in vitro study was to evaluate the tooth whitening effect of toothpaste containing nano-sized hydroxyapatite (HA). There were 3 types of dentifrices, which had a different level of abrasive components. For group 1, a newly developed toothpaste containing Nano-sized hydroxyapatite (Nano-HA) was used. Commercially available toothpastes were used in groups 2 and 3. Group 2 used toothpastes containing silica and multi phosphate. Group 3 used toothpastes containing abrasives with silica and micro-sized HA. In order to simulate 6-months of tooth brushing, the tooth specimens in all 3 groups were placed on a V8 Cross Brushing Machine (Sabri Co. U.S.A.) and brushed 10,000 times with the toothpaste slurries. The tooth specimens were then soaked in artificial saliva for 24 hours to create conditions similar to those encountered in vivo. The whitening efficacy was assessed before and after tooth brushing using the VITA shade scores of Shadeeye-EX NCC Dental Chroma meter (Shofu Co. Japan). All toothpastes produced significant differences in the mean shade change in the teeth before and after tooth brushing (p<0.05). However, there were no significant differences in the change in the shade between each group (p>0.05). Although the new Nano-HA toothpaste did not have superior whitening effects to the commercially available whitening toothpastes, they had a similar whitening efficacy to commercially available whitening toothpastes. These effects might come from the physical properties of Nano HA, which increase the surface dimension more than the Micro-sized HA and have the potential of remineralization.

Original languageEnglish
Pages (from-to)541-544
Number of pages4
JournalKey Engineering Materials
Volume309-311 I
Publication statusPublished - 2006 Apr 5

Fingerprint

Toothpastes
Durapatite
Hydroxyapatite
Abrasives
Silica
Silicon Dioxide
Slurries
Artificial Saliva
Dentifrices
Phosphates
Physical properties

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

Cite this

Kim, B. I., Jeong, S. H., Jang, S. O., Kim, K. N., Kwon, H. K., & Park, Y. D. (2006). Tooth whitening effect of toothpastes containing nano-hydroxyapatite. Key Engineering Materials, 309-311 I, 541-544.
Kim, B. I. ; Jeong, S. H. ; Jang, S. O. ; Kim, K. N. ; Kwon, H. K. ; Park, Y. D. / Tooth whitening effect of toothpastes containing nano-hydroxyapatite. In: Key Engineering Materials. 2006 ; Vol. 309-311 I. pp. 541-544.
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Kim, BI, Jeong, SH, Jang, SO, Kim, KN, Kwon, HK & Park, YD 2006, 'Tooth whitening effect of toothpastes containing nano-hydroxyapatite', Key Engineering Materials, vol. 309-311 I, pp. 541-544.

Tooth whitening effect of toothpastes containing nano-hydroxyapatite. / Kim, B. I.; Jeong, S. H.; Jang, S. O.; Kim, K. N.; Kwon, H. K.; Park, Y. D.

In: Key Engineering Materials, Vol. 309-311 I, 05.04.2006, p. 541-544.

Research output: Contribution to journalArticle

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Kim BI, Jeong SH, Jang SO, Kim KN, Kwon HK, Park YD. Tooth whitening effect of toothpastes containing nano-hydroxyapatite. Key Engineering Materials. 2006 Apr 5;309-311 I:541-544.