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

Byunk-Gyu Shin; Sung-Eun Yang

doi:10.5395/JKACD.2010.35.5.387

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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

¹Department of Prosthodontics, Graduate School of Clinical Dental Science, Catholic University, Seoul, Korea.

²Department of Conservative Dentistry, Seoul St. Mary's Hospital, Catholic University, Seoul, Korea.

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

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Abstract
REFERENCES

Abstract

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

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.

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)

REFERENCES

1. Chapple JA. Restoring discolored teeth to normal. Dent Cosmos. 1877;19: 449.
2. Goldstein RE, Garber DA. Translation of Complete Dental Bleaching. 1995;Quintessence Pub; 3-12.
3. Nutting EB, Poe GS. A new combination for bleaching teeth. Dent Clin North Am. 1976;10: 655-662.
4. Haywood VB, Heymann HO. Nightguard vital bleaching. Quintessence Int. 1989;20: 173-176.PubMed
5. Haywood VB, Heymann HO. Nightguard vital bleaching: how safe is it? Quintessence Int. 1991;22: 515-523.PubMed
6. Nathoo SA. The chemistry and mechanisms of extrinsic and intrinsic discoloration. J Am Dent Assoc. 1997;128: Suppl. 6S-10S.Article PubMed
7. O'Brien WJ, Groh CL, Boenke KM. A new, small-color-difference equation for dental shades. J Dent Res. 1990;69: 1762-1764.Article PubMed PDF
8. Gross MD, Moser JB. A colorimetric syudy of coffee and tea staining of four composite resins. J Oral Rehabil. 1977;4: 311-322.PubMed
9. Ruyter IE, Nilner K, Moller B. Color stability of dental composite resin materials for crown and bridge veneers. Dent Mater. 1987;3: 246-251.PubMed
10. Zekonis R, Matis BA, Cochran MA, Al Shethri SE, Eckert GJ, Carlson TJ. Clinical evaluation of in-office and at-home bleaching treatment. Oper Dent. 2003;28: 114-121.PubMed
11. Al Shethri S, Matis BA, Cochran MA, Zekonis R, Stropes M. Clinical evaluation of two in-office bleaching products. Oper Dent. 2003;28: 488-495.PubMed
12. Kim DJ, Kim YJ, Kim HG, Park EJ, Seo EJ, Hwang YC, Oh WM, Hwang IN. The influence of the vital bleaching agent on traslucency of the bovine enamel. J Korean Acad Conserv Dent. 2005;30: 178-183.Article
13. Park ES, Seong SR, Hong ST, Kim JE, Lee SY, Hwang SY, Lee SJ, Jin BH, Son HH, Cho BH. A clinical evaluation of a bleaching strip containing 2.9% hydrogen peroxide. J Korean Acad Conserv Dent. 2006;31: 269-281.

Tables & Figures

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.

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)

REFERENCES

1. Chapple JA. Restoring discolored teeth to normal. Dent Cosmos. 1877;19: 449.
2. Goldstein RE, Garber DA. Translation of Complete Dental Bleaching. 1995;Quintessence Pub; 3-12.
3. Nutting EB, Poe GS. A new combination for bleaching teeth. Dent Clin North Am. 1976;10: 655-662.
4. Haywood VB, Heymann HO. Nightguard vital bleaching. Quintessence Int. 1989;20: 173-176.PubMed
5. Haywood VB, Heymann HO. Nightguard vital bleaching: how safe is it? Quintessence Int. 1991;22: 515-523.PubMed
6. Nathoo SA. The chemistry and mechanisms of extrinsic and intrinsic discoloration. J Am Dent Assoc. 1997;128: Suppl. 6S-10S.Article PubMed
7. O'Brien WJ, Groh CL, Boenke KM. A new, small-color-difference equation for dental shades. J Dent Res. 1990;69: 1762-1764.Article PubMed PDF
8. Gross MD, Moser JB. A colorimetric syudy of coffee and tea staining of four composite resins. J Oral Rehabil. 1977;4: 311-322.PubMed
9. Ruyter IE, Nilner K, Moller B. Color stability of dental composite resin materials for crown and bridge veneers. Dent Mater. 1987;3: 246-251.PubMed
10. Zekonis R, Matis BA, Cochran MA, Al Shethri SE, Eckert GJ, Carlson TJ. Clinical evaluation of in-office and at-home bleaching treatment. Oper Dent. 2003;28: 114-121.PubMed
11. Al Shethri S, Matis BA, Cochran MA, Zekonis R, Stropes M. Clinical evaluation of two in-office bleaching products. Oper Dent. 2003;28: 488-495.PubMed
12. Kim DJ, Kim YJ, Kim HG, Park EJ, Seo EJ, Hwang YC, Oh WM, Hwang IN. The influence of the vital bleaching agent on traslucency of the bovine enamel. J Korean Acad Conserv Dent. 2005;30: 178-183.Article
13. Park ES, Seong SR, Hong ST, Kim JE, Lee SY, Hwang SY, Lee SJ, Jin BH, Son HH, Cho BH. A clinical evaluation of a bleaching strip containing 2.9% hydrogen peroxide. J Korean Acad Conserv Dent. 2006;31: 269-281.

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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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Figure

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

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

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 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)