Effects of methylene blue and curcumin photosensitizers on the color stability of endodontically treated intraradicular dentin.
Overview
Research
Identity
Additional Document Info
Other
View All
Overview
abstract
BACKGROUND: Photodynamic therapy with photosensitizers can reduce the microbial load. However, few studies have evaluated the effects of photosensitizers on the color stability of endodontically treated intraradicular dentin. This in vitro study investigated the effects of methylene blue and curcumin photosensitizers used in photodynamic therapy on the color stability of intraradicular dentin. METHODS: Sixty human incisors were divided into three experimental groups according to the photosensitizer solutions used and their concentrations: methylene blue (25mg/L), curcumin (1000mg/L), and curcumin (1500mg/L). The color stability of endodontically treated intraradicular dentin was evaluated using a portable reflectance spectrophotometer before and after the samples been storage in 2mL of the photosensitizer solutions during 5min (n=20). Color stability data were subjected to a normality test, and statistical analysis was performed using the one-way analysis of variance and Tukey least significant difference test (=0.05). RESULTS: Samples treated with 25mg/L methylene blue photosensitizer showed a higher level of color alteration than those stored in 1000mg/L curcumin (p=.03322). However, there was no significant difference in the color alteration profiles between the samples treated with 25mg/L methylene blue and 1500mg/L curcumin (p=.36428). Furthermore, there was no difference in the color alteration profiles between the dentin samples immersed in 1000mg/L and 1500mg/L curcumin photosensitizer solutions (p=.45321). CONCLUSIONS: Methylene blue and curcumin photosensitizers influenced the color stability of endodontically treated intraradicular dentin, and this color alteration exceeded the clinical acceptability threshold. Samples treated with 25mg/L methylene blue showed the highest level of color alteration.
Sivieri-Araujo, G., Strazzi-Sahyon, H. B., Jacomassi, D. P., Dos Santos, P. H., Cintra, L., Kurachi, C., & Bagnato, V. S.
complete list of authors
Sivieri-Araujo, Gustavo||Strazzi-Sahyon, Henrico Badaoui||Jacomassi, Denis Pablo||Dos Santos, Paulo Henrique||Cintra, Luciano Tavares Angelo||Kurachi, Cristina||Bagnato, Vanderlei Salvador
