Clinical evaluation of the tetrasodium pyrophosphate residual content released by two dental flosses produced with different materials / Avaliação clínica do teor residual do pirofosfato tetrassódico liberado por dois fios dentais produzidos com diferentes materiais

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

The aim of this investigation was to compare the influence of the type of material and the physical structure of two antitartar dental flosses in releasing tetrasodium pyrophosphate in the interdental space. This crossover study involved 10 subjects (both genders) with ages ranging from 18-30 years old. The individuals were randomly assigned to one of the following sequences of use of the dental flosses (AB or BA), where A = tangled polypropylene and B = texturized nylon according to the structures and the materials what the dental flosses were made, forming two groups of five individuals each. Each individual used the floss 6 times in the target areas (defined as both interproximal surfaces of the selected teeth, 3 times in each surface). Before the use of the first dental floss and between the employments of the two flosses, a one week washout period was done without the use of products containing tetrasodium pyrophosphate. The gingival crevicular fluid of the target areas was sampled with sterile paper points (tapering # 35) in the following times: (00) before the use of the dental floss, (0) soon after the use; 1, 2, 4, (1, 2 and 4 hours after the use, respectively). The pyrophosphate contents in the samples were verified using an ion chromatograph IC 2000 (column AS-11 e pre-column AG-11). The contents of pyrophosphate were compared between the two flosses and among the sample collection times. Pyrophosphate was detected in the gingival crevicular fluid of both groups in 95% of the samples soon after their use, 45% after 1h and 10% after 2h of the use. After 4h, none of the samples had pyrophosphate at detectable levels. Both dental flosses released tetrasodium pyrophosphate at therapeutic levels for up to 2 hours after flossing. Based in the results it can be concluded that the material composition and the physical structure of the flosses had no influence in releasing the antitartar agent, which remained in therapeutic levels for a 2 hours period after the single use.

ASSUNTO(S)

drug residue polipropileno entrelaçado tangled polypropylene nylon texturizado texturized nylon dental floss pirofosfato tetrassódico tetrasodium pyrophosphate dental calculus fio dental cálculo dental ion chromatography cromatografia de íons teor residual

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