The purpose of the study is to assess the apical sealing ability of the endodontic space using two types of canal filling techniques: vertical compaction of warm gutta-percha and AhPlus sealer compared with Resilon and RealSeal SE. Two sets of extracted human teeth were prepared with rotary instruments, each 20 teeth being obturated by the two techniques: the classical and the adhesive root canal filling. The apical leakage of the root canal filling made with Resilon and RealSeal SE was higher than the one with gutta-percha and AhPlus. The difference was statistically significant.
While initiating an endo-antral syndrome, inside the endodontic system and the chronic apical lesions of upper teeth anatomicaly related to the maxillary sinus floor, may be found both endopathogenic bacteria and filamentous fungi. Similarly the improper root canal treatments may facilitate an emerging aspergillosis of maxillary sinus. By phenotype and genotype analysis in 10% of chronic apical periodontitis were disclosed filamentous fungi of Aspergillus genus (A. fumigatus, A. versicolor and A. niger). Accordingly might be also taken into consideration the hypothesis of mutual pathogenical relationship between pulpal and sinusal pathology, since at its turn the aspergillosis of maxillarx sinus can also promote the contamination of already filled or still untreated necrotic root canals with filamentous fungi.
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