Showing papers in "Journal of Endodontics in 2003"

TL;DR: In this paper, the authors assessed the 4- to 6-yr outcome of initial endodontic treatment during Phase 1 of the Toronto Study and confirmed apical periodontitis as the main prognostic factor.

TL;DR: In this paper, the authors investigated the effect of a mixture of a tetracycline isomer, an acid, and a detergent (MTAD) as a final rinse on the surface of instrumented root canals.

TL;DR: It was determined that the degree of solubility and porosity increased as the water-to-powder ratio increased, and this ability to release calcium hydroxide could be of clinical significance because it could be related to the proven capacity of MTA to induce mineralization.

TL;DR: Investigation of the effect of various concentrations of sodium hypochlorite as an intracanal irrigant before the use of MTAD as a final rise to remove smear layer shows that although MTAD removes most of the smear layer, some remnants of the organic component of the Smear layer remain scattered on the surface of the root canal walls.

TL;DR: Finite-element models demonstrated that canal curvature seems more important than external root morphology, in terms of stress concentration, and that reduced dentin thickness increases the magnitude but not the direction of maximum tensile stress.

TL;DR: Based on the results of this study, it seems that MTAD is an effective solution in eradicating E. faecalis.

TL;DR: This study showed the limitation of the classical dye-penetration studies and that the dye-extraction method gave the same results as fluid filtration but saved much laboratory time.

TL;DR: This study aimed to compare the mechanical behavior of two nickel-titanium rotary instruments (ProTaper and ProFile) by applying the finite element analysis method to produce a numerical evaluation.

TL;DR: Fisher's exact test showed that the combination of 1.3% NaOCl as a root canal irrigant and MTAD as a final rinse was significantly more effective against E. faecalis than the other regimens.

TL;DR: Passive sonic or ultrasonic irrigation, for as little as 30 s, resulted in significantly cleaner canals than hand filing alone, when sonic and ultrasonic passive irrigation were compared with only each other.

TL;DR: Evaluated regional bond strengths of four adhesive systems to root canal dentin found C&B Metabond gave the highest bond strength compared with others in the control group and Variolink II had significantly higher bond strength when the canals were irrigated with NaOCl.

TL;DR: By evaluating pulp inflammation in vital pulp-therapy treatments, it was found that mineral trioxide aggregate was not significantly different from the untreated control group, both in pulp-capping procedures at 50 days and pulpotomy procedures at 150 days.

TL;DR: Based on the results it seems that MTAD is less cytotoxic than eugenol, 3% H2O2, Ca(OH)2 paste, 5.25% NaOCl, Peridex, and EDTA and more cytotoxicity than 2.63%, 1.31%, and 0.66%NaOCl.

TL;DR: Artificial lesions simulating pathological conditions were made in mandibles from human cadavers, finding that extensive disease of bone may be present even when there is no evidence of it on roentgenograms.

TL;DR: Comparison of the ability of a mixture of a tetracycline isomer, an acid, and a detergent with that of sodium hypochlorite to disinfect human root canals that had been contaminated with whole saliva showed a significant difference between the two groups.

TL;DR: It is suggested that mineral trioxide aggregate permits cementoblast attachment and growth and the production of mineralized matrix gene and protein expression and can be considered cementoconductive.

TL;DR: It is shown that defects can occur even with new files in the hands of experienced endodontists, and for absolute safety a single-use approach should be followed.

TL;DR: The study showed that root-canal treatment even conducted by students has a survival rate of 85.1% (Kaplan-Meier) after 10 yr and is a long-lasting, conservative therapy.

TL;DR: The microscopic details of the debonded interfaces between endodontic sealers and dentin or gutta-percha surfaces were assessed in this paper, using scanning electron microscopy and energy dispersive spectroscopy.

TL;DR: The solubilizing effects of MTAD on pulp and dentin were somewhat similar to those of EDTA, and the major difference between the actions of these solutions was a high binding affinity of doxycycline present in MTAD for the dentin.

TL;DR: CT may play an important role in optimizing palatine root apicoectomy through vestibular access, with regard to precision and preventing complications, with relatively low biological and economic cost, also possibly contributing to the affirmation of this new surgical procedure.

TL;DR: The calcium hydroxide paste with 2% chlorhexidine was significantly more effective at killing E. faecalis in the dentinal tubules than calcium Hydroxide with water.

TL;DR: Metronidazole had the greatest amount of bacterial resistance; however, if it is used in combination with penicillin V or amoxicillin, susceptibility of the combination withPenicillinV or am Toxicillin increased to 93% and 99%, respectively.

TL;DR: Hard tissue formed early in experimental pulp exposures capped with mineral trioxide aggregate or bone morphogenetic protein (BMP)-7 using dentin sialoprotein (DSP) as a marker demonstrated a hard tissue that was bone-like in appearance and devoid of DSP staining.

TL;DR: Hand condensation resulted in better adaptation to the tube walls and less voids than the ultrasonic method and should be considered the preferred method for placement of MTA.

TL;DR: Evaluated oral manifestations of and the limited available dental pulp information on diabetes mellitus, a common metabolic disorder of carbohydrate and lipid metabolism affecting over 16 million Americans, show that there is a greater prevalence of periapical lesions in diabetics than in nondiabetics.

TL;DR: There was no difference in the zones of inhibition between the 24- and 48-h time periods, and analysis using a one-way ANOVA and Tukey test showed a statistically significance difference between all four groups of sealers.

TL;DR: The purpose of this study was to compare the accuracy of a two-frequency (Root ZX) and a five- frequencies (Endo Analyzer Model 8005) electronic apex locator under clinical conditions.

TL;DR: The Endographe is a unique force-analyzer device equipped to measure, record, and generate graphs of the vertical forces and torque exerted during root canal preparation that suggest that the ProTaper shaping files are best used with lateral forces to decrease the coronal screwing effect.

TL;DR: It is suggested that Ca2+ in Ca(OH)2 specifically modulates osteopontin and BMP-2 levels during calcification in pulp during serum-free conditions.