Avaliação da permeabilidade radicular em dentes com rizogênese incompleta após aplicação de hidróxido de cálcio como medicação intracanal

Resumo (EN)

Introduction – The aim of this study was to investigate the possible variations of dental permeability of the root canal wall in immature permanent teeth pulled out, all of which prepared and medicated with calcium hydroxide paste mixed in anesthetic solution. Material and Methods – After the experimental procedure, teeth were reprepared under four different techniques, and the quantitative analysis of root dental permeability was observed through the penetration of metylene blue dye in the cervical, medium and apical third. Based on the experimental conditions, we observed that there is a statistically significant difference in the percentage of dye penetration in function of the kind of technique applied in the remotion of the medication with calcium hydroxide. Results – The use of EDTA-T followed by ENDO-PTC cream neutralized by sodium hypochlorite 1% was the best offer to an increasing of the dental permeability rate after medication with calcium hydroxide. At the same time teeth were given back the previous condition after the chemical chirurgical preparation, having no statistically significant difference at level of 5% between the Group 2 and 6, at the different root thirds. Conclusions – The calcium hydroxide medication interfered deccsively in the dental root permeability, independently of the root third analyses.