Formaldehyde levels in absorbent paper points through hplc

  • Sílvio Albergaria Universidade Federal da Bahia
  • Jailson Andrade Universidade Federal da Bahia
  • Danilo Barral Universidade Federal da Bahia
  • Thereza Barral Universidade Federal da Bahia
  • Roberto Araújo Universidade Federal da Bahia

Resumo

Formaldehyde tablets have been frequently used to keep absorbent paper points sterilized. However, the toxicity of this drug must be considered. The present study aims to determine rates of formaldehyde impregnation in absorbent paper points kept in environments containing formaldehyde tablets. Thus, an accurate
analytical methodology requiring simple operations and providing the determination of low concentration levels (ppm) of the formaldehyde impregnated in absorbent paper points was used. The absorbent paper points
which had been kept in environments containing formaldehyde tablets were placed in test tubes containing 2.4- dinitrophenylhydrazine and, following an ultrasound bath, were transferred to a microcolumn and washed with
distilled water. The retained hydrazones were diluted in acetonitrile and the amount of 10ml was injected in the High Performance Liquid Chromatographer. The results were subjected to descriptive statistics encompassing
the estimation of mean values, the standard deviation, and the confidence interval (95%) for mean values. This study showed a significant rate of formaldehyde impregnation in absorbent paper points of any size, especially
in those kept in environments containing formaldehyde tablets over a seven-day period.
Uniterms: Formaldehyde. Root canal therapy.

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Biografia do Autor

Sílvio Albergaria, Universidade Federal da Bahia
Titular Professor, UFBA, Brazil
Jailson Andrade, Universidade Federal da Bahia
Titular Professor, UFBA, Brazil
Danilo Barral, Universidade Federal da Bahia
Student of Dental Master’s Programs, UFBA, Brazil
Thereza Barral, Universidade Federal da Bahia
Student of Dental Master’s Programs, UFBA, Brazil
Roberto Araújo, Universidade Federal da Bahia
Student of Dental Master’s Programs, UFBA, Brazil

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Publicado
2016-03-14
Como Citar
Albergaria, S., Andrade, J., Barral, D., Barral, T., & Araújo, R. (2016). Formaldehyde levels in absorbent paper points through hplc. Arquivos Em Odontologia, 43(4). Recuperado de https://periodicos.ufmg.br/index.php/arquivosemodontologia/article/view/3452
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Artigos