> serge bal c'est un tres bon
> a ma connaissance c'est un de seuls a utiliser un laser erbium yag à 60000 euros
> pour nettoyer ses canaux en creant untourbillon (plasma)qui remonte
> spectaculairement toutes les merdes
Il y a une alternative aussi efficace à 30€ (réutilisable)
Efficacy of 4 Irrigation Protocols in Killing Bacteria Colonized in Dentinal Tubules Examined by a Novel Confocal Laser Scanning Microscope Analysis.
Azim AA1, Aksel H1, Zhuang T2, Mashtare T2, Babu JP1, Huang GT3.
The aim of this study was to determine the efficiency of 4 irrigation systems in eliminating bacteria in root canals, particularly in dentinal tubules.
Roots of human teeth were prepared to 25/04, autoclaved, and inoculated with Enterococcus faecalis for 3 weeks. Canals were then disinfected by (1) standard needle irrigation, (2) sonically agitating with EndoActivator, (3) XP Endo finisher, or (4) erbium:yttrium aluminum garnet laser (PIPS) (15 roots/group). The bacterial reduction in the canal was determined by MTT assays. For measuring live versus dead bacteria in the dentinal tubules (4 teeth/group), teeth were split open and stained with LIVE/DEAD BackLight. Coronal, middle, and apical thirds of the canal dentin were scanned by using a confocal laser scanning microscope (CLSM) to determine the ratio of dead/total bacteria in the dentinal tubules at various depths.
All 4 irrigation protocols significantly eliminated bacteria in the canal, ranging from 89.6% to 98.2% reduction (P < .001). XP Endo had the greatest bacterial reduction compared with other 3 techniques (P < .05). CLSM analysis showed that XP Endo had the highest level of dead bacteria in the coronal, middle, and apical segments at 50-μm depth. On the other hand, PIPS had the greatest bacterial killing efficiency at the 150-μm depth in all 3 root segments.
XP Endo appears to be more efficient than other 3 techniques in disinfecting the main canal space and up to 50 μm deep into the dentinal tubules. PIPS appears to be most effective in killing the bacteria deep in the dentinal tubules.
Ex vivo evaluation of four final irrigation protocols on the removal of hard-tissue debris from the mesial root canal system of mandibular first molars.
Leoni GB1, Versiani MA1, Silva-Sousa YT2, Bruniera JF2, Pécora JD1, Sousa-Neto MD1.
To evaluate the efficacy of four final irrigation protocols on the reduction of hard-tissue debris accumulated within the mesial root canal system of mandibular first molars using micro-CT analysis.
Forty mesial roots of mandibular molars with a single and continuous isthmus connecting the mesiobuccal and mesiolingual canals (Vertucci's Type I configuration) were selected and scanned at a resolution of 8.6 μm. Canals were enlarged sequentially using WaveOne Small and Primary instruments activated in reciprocating motion without intracanal irrigation to allow debris to accumulate within the mesial root canal system. Then, specimens were anatomically matched and distributed into 4 groups (n=10), according to the final irrigation protocol: apical positive pressure (APP), passive ultrasonic irrigation (PUI), Self-adjusting File (SAF), and XP-endo Finisher (XPF). The final irrigation procedures were performed over 2 minutes using a total of 5.5 mL of 2.5% NaOCl per canal. Reconstructed datasets were co-registered and the mean percentage reduction of accumulated hard-tissue debris after the final irrigation procedures were compared statistically between groups using the ANOVA post hoc Tukey test with a significance level set at 5%.
Reduction of accumulated hard-tissue debris was observed in all groups after the final irrigation protocol. Overall, PUI and XPF groups had higher mean percentage reductions of accumulated hard-tissue debris (94.1% and 89.7%, respectively) than APP and SAF groups (45.7% and 41.3%, respectively) (p < 0.05). No significant differences were found when comparing the results of PUI and XPF groups (p > 0.05) or APP and SAF groups (p > 0.05).
The PUI technique and XP-endo Finisher instruments were associated with significantly lower levels of AHTD compared with conventional irrigation and modified SAF system protocol in the mesial root canals of mandibular molars. This article is protected by copyright. All rights reserved.