Uso da Tomografia Cone Beam para avaliação da Medicação Intracanal em Modelo de Periodontite Apical em Ratos

Autores

  • Larissa Magnus Klassmann Doutorado Odontologia PUCRS
  • Vinicius Dutra Radiology Service, Mãe de Deus Hospital
  • Lisiane Bernardi Postgraduate Program in Dentistry,UFRGS
  • Maria Martha Campos

Palavras-chave:

Periodontite apical, medicação intracanal, cone beam, ratos,

Resumo

Objetivo: Descrever uma metodologia para avaliar a eficácia das medicações intracanal em ratos, utilizando a Tomografia Cone Beam (CBCT) para acompanhar as lesões periapicais. Métodos: Seis ratos Wistar machos foram utilizados e lesões apicais induzidas em 12 molares superiores. O tratamento Endodôntico foi realizado em todos os dentes e pasta de Hidróxido de Cálcio foi aplicada nos molares do lado direito ( grupo teste, n=6) enquanto que nenhuma medicação foi utilizada nos molares esquerdos (grupo controle, n=6). CBCT foi realizada vinte e um dias após tratamento endodôntico, e a área da lesão foi determinada em mm2. Teste t Student não pareado foi empregado para verificar diferenças entre os grupos. Resultados: A área da lesão foi de 9.38±0.68 mm2 no grupo controle e 7.08±0.44 mm2 no grupo tratado (P<0.05) de acordo com a avaliação da CBTC. Estes dados foram confirmados pela avaliação histológica das maxilas, indicando a aplicabilidade da CBTC no modelo de periodontite apical em ratos. Conclusão: O modelo em ratos e a CBCT mostraram-se uma ferramenta útil para estudo in vivo dos efeitos das medicações intracanal e suas influências na cicatrização das lesões periapicais.

Biografia do Autor

Larissa Magnus Klassmann, Doutorado Odontologia PUCRS

Area Endodontia

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Publicado

2012-11-06

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Artigo Original