IN VITRO SPECTROPHOTOMETRIC EVALUATION OF ACRYLIC
TEETH STAINING RELATED TO DIETARY AND ORAL ANTISEPTIC
AGENTS
RALUCA DRĂGHICI1, CRISTINA TEODORA PREOTEASA1*, LĂCRĂMIOARA POPA2, CĂTĂLINA MURARIU-MĂGUREANU1, ANA MARIA TANCU1, DANIELA MEGHEA1, ANCA DIANA CRISTEA1, ELENA PREOTEASA1
1Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
2Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
*corresponding author: cristina_5013@yahoo.com
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Abstract:
The aim of this study was to analyse the colour stability of acrylic teeth, after exposure to several dietary agents (types of
coffee, red wine), and the oral antiseptic chlorhexidine (0.2% mouthwash). Distilled water was used as control. The teeth
colour was assessed using a spectrophotometric method. Acrylic teeth from 4 manufacturers were immersed in staining
agents over a period of 11 days. Acrylic teeth showed a high susceptibility to staining, dependent on teeth manufacturer
(lowest for Vita teeth), and staining agent (highest for coffee, especially espresso, and for red wine). Chlorhexidine
mouthwash had a low staining potential, similar to distilled water. In conclusion, tests for staining susceptibility can be
carried out by spectrophotometry before selecting teeth from one manufacturer, using specific colouring agents according to
patient food preferences. Chlorhexidine, an oral antiseptic frequently prescribed, has low staining potential of acrylic teeth.

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