[Spectrophotometric and visual analysis of internal dental bleaching utilizing laser and heat as catalyzing sources]. / Análise espectrofotométrica e visual do clareamento dental interno utilizando laser e calor como fonte catalisadora.
Pesqui Odontol Bras
; 16(4): 337-42, 2002.
Article
em Pt
| MEDLINE
| ID: mdl-12612773
This experiment aimed at evaluating, in vitro, the chromatic alteration of dental crowns submitted to internal bleaching. Color alterations were evaluated by means of spectrophotometric analysis and visual observation, at the following experimental phases: initial reading (LI), after-darkening reading (LE), immediate after-bleaching reading (LC), bleaching checked after 15 days (LC15) and after 30 days (LC30). After finding the values of L* (luminosity), a* and b* (shade and saturation), which made it possible to quantify the chromatic alterations of the specimens, color differences (deltaE ) were assessed by means of the CIE Lab Program. The statistical analysis of the results did not reveal any significant difference between conventional bleaching and bleaching activated by Er:YAG laser. No statistical difference was observed between the results after 15 and 30 days, for both experimental groups.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Clareamento Dental
/
Coroa do Dente
/
Terapia a Laser
/
Temperatura Alta
Limite:
Humans
Idioma:
Pt
Revista:
Pesqui Odontol Bras
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil