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In vitro evaluation of the efficacy of two bleaching procedures
Amengual, José; Llambés, Gonzalo; Llena, Carmen; Forner, Leopoldo.
Afiliação
  • Amengual, José; University of Valencia. Department of Stomatology. Associate Professor. Valencia. Spain
  • Llambés, Gonzalo; University of Valencia. Department of Stomatology. Associate Professor. Valencia. Spain
  • Llena, Carmen; University of Valencia. Professor. Department of Stomatology. Valencia. Spain
  • Forner, Leopoldo; University of Valencia. Department of Stomatology. Valencia. Spain
Med. oral patol. oral cir. bucal (Internet) ; 16(6): 845-851, sept. 2011. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-93101
Biblioteca responsável: ES1.1
Localização: BNCS
ABSTRACT

Objective:

In vitro comparison of the efficacy of two bleaching procedures, one based on carbamide peroxide (CP)and the other on hydrogen peroxide (HP), simulating clinical conditions.Study

Design:

Two groups of 20 teeth in each group were selected. Group A 22% CP, one hour a day for 21 consecutivedays. Group B 37.5% HP, in 2 treatment sessions with an one week interval between each session. At eachsession the product was applied three successive times for eight minutes. Colour was recorded before treatment,when it was finished and one week after finishing it, with the Vita EasyShade spectrophotometer. CIEL*a*b* andΔE were established at each moment in the study. Intra-group data was compared using the paired t-test and intergroupdata with the independent groups t-test. Scores from the Vita Classical guide provided with the device wererecorded and the colour improvement percentage was calculated.

Results:

In both groups significant whitening was achieved by the end of treatment. Lightness remained significantlyhigh when treatment was finished and one week after in both groups. The percentage of bleaching wassignificantly higher in group A.

Conclusions:

Both 22% CP and 37.5% HP were effective for bleaching teeth. Bleaching effect was greater in CPgroup (AU)
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Coleções: Bases de dados nacionais / Espanha Base de dados: IBECS Assunto principal: Clareamento Dental / Clareadores Dentários Limite: Humanos Idioma: Inglês Revista: Med. oral patol. oral cir. bucal (Internet) Ano de publicação: 2011 Tipo de documento: Artigo Instituição/País de afiliação: University of Valencia/Spain
Buscar no Google
Coleções: Bases de dados nacionais / Espanha Base de dados: IBECS Assunto principal: Clareamento Dental / Clareadores Dentários Limite: Humanos Idioma: Inglês Revista: Med. oral patol. oral cir. bucal (Internet) Ano de publicação: 2011 Tipo de documento: Artigo Instituição/País de afiliação: University of Valencia/Spain
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