Abstract
Aims of the Study: To evaluate the influence of disinfection by
microwave and ultrasonic cleaning techniques on the color
parameters of different types of artificial teeth used in prosthodontic
treatment. MATERIALS & METHODS: Three types of artificial
teeth were used: Porcelain teeth, RMH acrylic teeth (double cross
linked) and Seif acrylic teeth (cross linked). Samples were
immersed in distilled water for 48 hours at 37ºC before taking
measurements. The color parameters (hue, chroma and value) of
study samples were measured by Easy shade device before
treatment, after disinfection by microwave (800 watt for 6 minutes),
and lastly after cycle in ultrasonic cleaner (15minutes with
effervescent tablet). Data were statistically analyzed by Analysis of
Variance (ANOVA) followed by Duncan Multiple Analysis Range
Test to determine the level of significance. RESULTS: Color of
acrylic teeth was affected more than that of porcelain teeth. Results
showed significant differences (P<0.05) in chroma and value color
parameters before and after disinfection for Acrylic teeth but not for
hue parameter. CONCLUSIONS: Seif teeth colors changed during
disinfection more than RMH teeth, while Porcelain teeth the least.
Microwave disinfection technique do not affect significantly the
color of denture teeth
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