The real-time

PCR assays using specific probes confirmed all the results and proved that it is possible to detect and quantify genetically modified organisms in the fully refined soybean oil. To our knowledge, this has never been reported before and represents an important accomplishment click here regarding the traceability of genetically modified organisms in refined oils. (C) 2009 Elsevier Ltd. All rights reserved.”
“Objective. The aim of this study was to compare the bond strength and apical sealing ability of master gutta-percha points with different tapers, as used in conjunction with different root canal sealers.

Study design. Roots of extracted human maxillary incisors (n = 135) were prepared with 0.06-taper nickel-titanium rotary files to final size 30. The roots were then randomly divided into 3 groups according to the root canal sealer used: 1) AH Plus; 2) Ketac-Endo; and 3) EndoREZ. Each sealer was combined with 1 of the following obturation techniques: 0.02-tapered gutta-percha master cone using lateral condensation, 0.04-tapered gutta-percha master cone using lateral condensation, selleck compound or 0.06-tapered gutta-percha as a single cone. The bond strength and apical sealing ability were measured with the push-out test and dye penetration test, respectively. The data were statistically analyzed by using Kruskal-Wallis test with Bonferroni correction

at P = .05.

Results. Both the taper of the gutta-percha point and root canal sealers had significant effects on push-out bond strength (P < .001). According to the microleakage data, AH Plus exhibited significantly lower overall leakage, whereas no difference was found between master cone points (P = .093).

Conclusions. The use Compound C order of matched-taper gutta-percha points in canals prepared with tapered rotary instruments may be advocated to improve bond strength ability of root canal filling material. Furthermore,

AH Plus may be preferable to EndoRez and Ketac-Endo in terms of improved sealing and bonding quality of filling material. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009;107:e61-e64)”
“A set of segmented poly(ester-urethane)s were prepared from diisocyanates HDI or MDI and using 1,4-butanediol and D-glucose-derived cyclic diols (14 : 3,6-dianhydro-D-glucitol (isosorbide) or 2,4;3,5-di-O-methylidene-D-glucitol (gludioxol) or mixtures of them) as extenders. Hydroxyl end-capped polycaprolactone with a molecular weight of 3000 g.mol(-1) was used as soft segment. Two polymerization methods, in solution and in bulk, were applied for the synthesis of these poly(ester-urethane)s. The influence of the preparation procedure and composition in cyclic extender on synthesis results, structure, and properties of the novel poly(ester-urethane)s was comparatively evaluated and discussed.