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Intracoronal bleaching of discolored non-vital teeth.
Oper Dent. 2003 Jul-Aug; 28(4):334-40.OD

Abstract

This clinical study compared the effectiveness of bleaching non-vital teeth with an open pulp chamber during bleaching using 10% carbamide peroxide compared to the modified walking bleach technique and extracoronal bleaching. Sixty discolored, non-vital teeth were treated. They were divided into three groups. Each group was treated with one of the bleaching materials and methods: extracoronally using 10% carbamide peroxide for two weeks as negative control (Group A), intracoronally using sodium perborate mixed with 3% hydrogen peroxide (modified walking bleach technique) (Rotstein, Mor & Friedman, 1993) for four weeks (Group B) and intracoronally and extracoronally using 10% carbamide peroxide for two weeks (Group C) (Liebenberg, 1997). Tooth color was measured at baseline, (BL), immediately post-bleaching (IP) and six months post-bleaching (SP) with a colorimeter (Castor, Sigma, Germany) using a tooth-positioning jig. The color was determined according to the CIELAB system, which records lightness as L* and chromaticity coordinates as a* and b*. The difference in L* and b* among the three groups was significant between BL and IP examination. The post-bleaching, whitening effect in Group C was significantly better, but after six months, in Group C, it was as effective as in Group B.

Authors+Show Affiliations

Charité, Humboldt-University Berlin, Germany. mozhgan.bizhang@charite.deNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Controlled Clinical Trial
Journal Article

Language

eng

PubMed ID

12877416

Citation

Bizhang, Mozhgan, et al. "Intracoronal Bleaching of Discolored Non-vital Teeth." Operative Dentistry, vol. 28, no. 4, 2003, pp. 334-40.
Bizhang M, Heiden A, Blunck U, et al. Intracoronal bleaching of discolored non-vital teeth. Oper Dent. 2003;28(4):334-40.
Bizhang, M., Heiden, A., Blunck, U., Zimmer, S., Seemann, R., & Roulet, J. F. (2003). Intracoronal bleaching of discolored non-vital teeth. Operative Dentistry, 28(4), 334-40.
Bizhang M, et al. Intracoronal Bleaching of Discolored Non-vital Teeth. Oper Dent. 2003 Jul-Aug;28(4):334-40. PubMed PMID: 12877416.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Intracoronal bleaching of discolored non-vital teeth. AU - Bizhang,Mozhgan, AU - Heiden,Anke, AU - Blunck,Uwe, AU - Zimmer,Stefan, AU - Seemann,Rainer, AU - Roulet,Jean-François, PY - 2003/7/25/pubmed PY - 2003/10/8/medline PY - 2003/7/25/entrez SP - 334 EP - 40 JF - Operative dentistry JO - Oper Dent VL - 28 IS - 4 N2 - This clinical study compared the effectiveness of bleaching non-vital teeth with an open pulp chamber during bleaching using 10% carbamide peroxide compared to the modified walking bleach technique and extracoronal bleaching. Sixty discolored, non-vital teeth were treated. They were divided into three groups. Each group was treated with one of the bleaching materials and methods: extracoronally using 10% carbamide peroxide for two weeks as negative control (Group A), intracoronally using sodium perborate mixed with 3% hydrogen peroxide (modified walking bleach technique) (Rotstein, Mor & Friedman, 1993) for four weeks (Group B) and intracoronally and extracoronally using 10% carbamide peroxide for two weeks (Group C) (Liebenberg, 1997). Tooth color was measured at baseline, (BL), immediately post-bleaching (IP) and six months post-bleaching (SP) with a colorimeter (Castor, Sigma, Germany) using a tooth-positioning jig. The color was determined according to the CIELAB system, which records lightness as L* and chromaticity coordinates as a* and b*. The difference in L* and b* among the three groups was significant between BL and IP examination. The post-bleaching, whitening effect in Group C was significantly better, but after six months, in Group C, it was as effective as in Group B. SN - 0361-7734 UR - https://www.unboundmedicine.com/medline/citation/12877416/Intracoronal_bleaching_of_discolored_non_vital_teeth_ DB - PRIME DP - Unbound Medicine ER -