The influence of the vital bleaching agents on translucency of the bovine enamel / 대한치과보존학회지
Journal of Korean Academy of Conservative Dentistry
; : 178-183, 2005.
Article
en Ko
| WPRIM
| ID: wpr-42029
Biblioteca responsable:
WPRO
ABSTRACT
This study was done to evaluate whether vital bleaching agents could influence on the translucency of the bovine enamel. The anterior bovine teeth that were extracted one day before and without any gross discoloration were obtained and then were preserved in physiologic saline. 6 mm cylindrical tooth specimens were fabricated with diamond puncher perpendicularly on labial surface of bovine tooth. After embedded in transparent acrylic resin with labial surface being exposed, they were cut to a thickness of 1.2 mm with low speed diamond saw (Isomat, Buehler Co., Lake Bluff, IL, USA). They were smoothly ground to 1 mm thickness of enamel with sandpaper. 24 specimens were randomly divided into 3 groups and control group respectively. Opalescence (10% carbamide peroxide, Ultradent, South Jordan, USA), Rembrandt (10% carbamide peroxide, DenMat, USA) and Opalescence F (15% carbamide peroxide with fluoride, Ultradent, USA) were applied on labial sides of the bovine enamel for 7 days (bleaching agents were reapplied every 24 hours) and the opposite surface was contacted to cotton that soaked in distilled water. The control group was soaked in distilled water. Three stimulus value X, Y and Z were evaluated with colorimeter (Color & Color Differencemeter, Model TC-6FX, Tokyo Denshoku Co., Japan) on the labial surface of all specimen three times on white and black background plate before the bleaching agents were applied and on 3rd, 5th and 7th day after applied. The degree of translucency was normally assessed by measuring the inverse property, opacity (contrast ratio). 10% Opalescence, 15% Opalescence-F, and control group showed no significant variation in the translucency of bovine enamel, However Rembrandt decreased the translucency of it (p < 0.01).
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Texto completo:
1
Índice:
WPRIM
Asunto principal:
Diente
/
Urea
/
Agua
/
Lagos
/
Diamante
/
Esmalte Dental
/
Blanqueadores
/
Fluoruros
/
Jordania
País/Región como asunto:
Asia
Idioma:
Ko
Revista:
Journal of Korean Academy of Conservative Dentistry
Año:
2005
Tipo del documento:
Article