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HOME > Restor Dent Endod > Volume 35(5); 2010 > Article
Clinical Research The evaluation of clinical efficacy and longevity of home bleaching without combined application of In-office bleaching
Byunk-Gyu Shin, DDS, MD1, Sung-Eun Yang, DDS, PhD2
2010;35(5):-394.
DOI: https://doi.org/10.5395/JKACD.2010.35.5.387
Published online: September 30, 2010

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Correspondence to Sung-Eun Yang, DDS, PhD. Professor, Department of Conservative Dentistry, Seoul St. Mary's Hospital, Catholic University, 505, Banpo-dong, Seocho-gu, Seoul, Korea 135-720. Tel, +82-2-2258-6296; Fax, +82-2-537-2374; dentyeun@catholic.ac.kr
• Received: June 17, 2010   • Revised: July 22, 2010   • Accepted: September 8, 2010

Copyright © 2010 Korean Academy of Conservative Dentistry

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  • Objectives
    The purpose of this study was to evaluate the whitening efficacy and longevity of home bleaching.
  • Materials and Methods
    A total of 28 patients were divided into either experimental group (Opalescence F; 15% carbamide peroxide) or control group randomly. The patients in experimental group were instructed to wear individual trays applied with bleaching gel for 2 hours a day for 4 weeks. Any treatments weren't applied to the patients in control group. The color measurements of central incisors, lateral incisors & canines of upper and lower arch were recorded at base line, immediately after the finishment of treatmemt (4 weeks), 8 weeks and 12 weeks using Colorimeter (Chroma Meter, 2600d Konica Minolta co.) and Vitapan classical shade guide (Vita Zahnfabrik).
  • Results
    A significantly stronger color change was observed for overall teeth samples in experimental group immediately after treatment (at 4 weeks) compared to ones in control group (p < 0.05). There was also a significant difference between baseline and 8 weeks or 12 weeks separately though color rebouncing phenomenon occurred as time went by (p < 0.05).
  • Conclusions
    The clinical effecacy and longevity of home bleaching without combined application of in-office bleaching was observed through this experiment.
  • Keywords: Colorimeter; Home bleaching; Longevity; Vita shade guide; Whitening efficacy
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Figure 1
Change in ΔE* obtained by colorimeter in control group and experimental group.
jkacd-35-387-g001.jpg
Figure 2
Change in ΔE* obtained by vita shade guide in control group and experimental group.
jkacd-35-387-g002.jpg
Figure 3
Individual tooth ΔE* obtained colorimeter in experimental group.
jkacd-35-387-g003.jpg
Figure 4
Individual tooth ΔE* obtained colorimeter in control group.
jkacd-35-387-g004.jpg
Figure 5
Individual tooth ΔE* obtained vita shade guide in experimental group.
jkacd-35-387-g005.jpg
Figure 6
Individual tooth ΔE* obtained vita shade guide in control group.
jkacd-35-387-g006.jpg
Table 1
The means values of shade changes measured by colorimeter (p < 0.05)
jkacd-35-387-i001.jpg
Table 2
The means values of shade changes measured by vita shade guide (p < 0.05)
jkacd-35-387-i002.jpg

Tables & Figures

REFERENCES

    Citations

    Citations to this article as recorded by  
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    • Effect of preference drinks on tooth color reduction after tooth bleaching: A 12-momth follow-up study
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    • Tooth color reduction and consequent patient satisfaction after office and home bleaching: a 6-month follow-up study
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      Journal of Korean Academy of Oral Health.2015; 39(1): 3.     CrossRef

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      The evaluation of clinical efficacy and longevity of home bleaching without combined application of In-office bleaching
      J Korean Acad Conserv Dent. 2010;35(5):387-394.   Published online September 30, 2010
      DOI: https://doi.org/10.5395/JKACD.2010.35.5.387
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    The evaluation of clinical efficacy and longevity of home bleaching without combined application of In-office bleaching
    Image Image Image Image Image Image
    Figure 1 Change in ΔE* obtained by colorimeter in control group and experimental group.
    Figure 2 Change in ΔE* obtained by vita shade guide in control group and experimental group.
    Figure 3 Individual tooth ΔE* obtained colorimeter in experimental group.
    Figure 4 Individual tooth ΔE* obtained colorimeter in control group.
    Figure 5 Individual tooth ΔE* obtained vita shade guide in experimental group.
    Figure 6 Individual tooth ΔE* obtained vita shade guide in control group.

    Figure 1

    Figure 2

    Figure 3

    Figure 4

    Figure 5

    Figure 6

    The evaluation of clinical efficacy and longevity of home bleaching without combined application of In-office bleaching

    The means values of shade changes measured by colorimeter (p < 0.05)

    The means values of shade changes measured by vita shade guide (p < 0.05)
    Table 1 The means values of shade changes measured by colorimeter (p < 0.05)

    Table 2 The means values of shade changes measured by vita shade guide (p < 0.05)

    Table 1

    Table 2

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