Clinical evaluation of the efficacy on biofilm removal from complete denture of the chemical (alkaline peroxide) and mecanical (ultrasonic) methods / Avaliação clínica da eficácia dos métodos químico (peróxido alcalino) e mecânico (ultra-som) frente à propriedade de remoção do biofilme de próteses totais

AUTOR(ES)

Patricia Costa Cruz

DATA DE PUBLICAÇÃO

2007

RESUMO

The aim of this study was to evaluate the hability of the biofilm removal from complete denture of the chemical (alkaline peroxide-effervescent tablets to complete denture immersion), mechanical (ultrasonic) and combined (association of the effervescent and ultrasonical methods) methods. Eighty patients that use upper and lower complete denture participated of the experimental period of 21 days and they were distibuted in 4 groups (n=20): 1) Control - brushing the dentures with especifc brush (Bitufo), 3 times a day (after breakfast, lunch and dinner) with water; 2) Chemical - brushing the dentures with especifc brush (Bitufo), 3 times per day (after breakfast, lunch and dinner) with water and immersion in a recipient containing warm water and 01 effervescent tablet of Corega Tabs for 5 minutes; 3) Mechanical - brushing the dentures with especific brush (Bitufo), 3 times a day (after breakfast, lunch and dinner) with water and only one ultrasonic vibration per 15 minutes in the end of the esperimental period (21 days); 4) Combined - association of the methods 2 and 3. To quantify the biofilm, the internal surfaces of the upper complete dentures were stained and photographed in 45º (Canon EOS Digital Rebel), processed (Adobe Photoshop 5.0) and the areas (total internal surface and stained with biofilm) quantified (Image Tool 2.02). The percentage of the biofilm was calculated by the relation between biofilm area multiplier by 100 and total area of the internal surface of the upper complete denture. The results showed diferences between the methods (teste de Kruskal-Wallis, significância de 0,05), with superiority of the chemical (37.2), mechanical (35.2) and combined (29.1) methods above control group (60.5). As conclusion, the immersion with alkaline peroxide and the use of ultrasonic vibration can be employed as auxiliary agents on the hygiene of complete dentures.

ASSUNTO(S)

biofilme higienizadores de próteses totais complete denture denture cleansers biofilm prótese total

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