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Revista Odonto Ciência (Online)
versão On-line ISSN 1980-6523
Rev. odonto ciênc. (Online) vol.25 no.2 Porto Alegre Jan. 2010
ORIGINAL ARTICLE
Comparative assessment of the flow rate of root canal sealers
Estudo comparativo do escoamento de cimentos obturadores endodônticos
Norberto Batista de Faria-JúniorI; Santiago MassiI; Hugo Ricardo CrotiI; José Carlos Rivas GutierrezI; Fábio Roberto DamettoII; Luis Geraldo VazIII
IPrograma de Pos-Graduação em Endodontia, Faculdade de Odontologia de Araraquara, UNESP, Araraquara, SP, Brasil
IIPrograma de Pós-Graduação em Odontologia, Universidade Potiguar, Natal, RN, Brasil
IIIDepartamento de Materiais Dentários e Prótese, Faculdade de Odontologia de Araraquara, UNESP, Araraquara, SP, Brasil
ABSTRACT
PURPOSE: This study evaluated the flow rate of the Acroseal, AH Plus, Endomethasone N, Sealapex, and ActiV GP according to the standards of the ISO specification 6876/2001.
METHODS: A volume of 0.05 mL of the cement mixed according to the manufacturer's recommendations was placed on a glass plate. At 180±5 s after the commencement of mixing, the second glass plate was placed on top of the sealer, followed by the weight of mass approximately 100 g to make a total mass on the plate of 120±2 g. Ten min after the start of mixing, the weight was removed and the value of the diameter of the compressed disc of sealer was measured. The mean of three such determinations for each sealer was taken as the flow of the material. The mean values were compared using ANOVA and Tukey's tests.
RESULTS: The results obtained were: Acroseal 21.24 mm, AH Plus 22.72 mm, ActiV GP 24.90 mm, Endomethasone N 18.76 mm, and Sealapex 25.15 mm.
CONCLUSION: Only the Endomethasone N did not conform to ISO Specification that requires that a sealer shall have a diameter of not less than 20 mm. The Sealapex achieved the greatest flow, but it did not differ from Activ GP and AH Plus (P>0.5).
Key words: Flow; dental materials; root canal sealers
RESUMO
OBJETIVO: Este estudo avaliou o escoamento do Acroseal, AH Plus, Endomethasone N, Sealapex e ActiV GP de acordo com a especificação ISO 6876/2001.
METODOLOGIA: Um volume de 0,05 mL do cimento manipulado de acordo com as recomendações do fabricante foi colocado numa placa de vidro. Aos 180±5 s após o início da espatulação, uma segunda placa de vidro foi colocada sobre o cimento, seguida por um peso de massa de 100 g para fazer um total de 120±2 g. Dez minutos após o começo da manipulação o peso foi removido e o valor do diâmetro do disco de cimento foi mensurado. A média de 3 mensurações para cada cimento foi tomada como o escoamento do material. Os dados foram comparados estatisticamente pelos testes ANOVA e Tukey.
RESULTADOS: Os escoamentos obtidos foram: Acroseal 21.,4 mm, AH Plus 22,72 mm, ActiV GP 24,90 mm, Endomethasone N 18,76 mm e Sealapex 25,15 mm.
CONCLUSÃO: Apenas o Endomethasone N não se enquadrou na especificação ISO a qual requer que o cimento tenha um diâmetro não inferior a 20 mm. O Sealapex alcançou o melhor escoamento, mas não foi estatisticamente diferente do Activ GP e AH Plus (P>0,05).
Palavras-chave: Escoamento; materiais dentários; cimentos obturadores
Texto completo disponível apenas em PDF.
Full text available only in PDF format.
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Correspondence:
Norberto Batista de Faria-Júnior
Faculdade de Odontologia de Araraquara (UNESP)
Departamento de Odontologia Restauradora
Rua Humaitá, 1680, Caixa Postal 331
Araraquara, SP - Brasil 14.801-903
Email: norbertofariajr@hotmail.com
Received: June 19, 2009
Accepted: February 2, 2010
Conflict of Interest Statement: The authors state that there are no financial and personal conflicts of interest that could have inappropriately influenced their work.
