Showing papers in "Journal of Endodontics in 2004"

TL;DR: This review attempts to identify factors that influence shaping outcomes with nickel-titanium rotary instruments, such as preoperative root-canal anatomy and instrument tip design, and implications of various working length definitions and desired apical widths.

TL;DR: This article reviewed the major pertinent literature on this topic, with an emphasis on major decision-making elements in post placement and restoration of end-odontically treated teeth, and made recommendations for treatment planning, materials, and clinical practices from restorative and endodontic perspectives.

TL;DR: In this paper, a new technique was presented to revascularize immature permanent teeth with apical periodontitis, where the canal is disinfected with copious irrigation and a combination of three antibiotics.

TL;DR: Investigation of the prevalence of E. faecalis in endodontic infections and whether this species is associated with particular forms of periradicular diseases indicated that it is significantly more associated with asymptomatic cases of primary endodentic infections than with symptomatic ones.

TL;DR: A key objective of successful nonsurgical endodontic treatment is obturation of the root canal systems and the analysis of this large data set revealed 14 additional root canal morphologies.

TL;DR: Comparing bacterial leakage using Streptococcus mutans and Enterococcus faecalis through gutta-percha and a thermoplastic synthetic polymer-based root filling (Resilon) using two filling techniques during a 30-day period found Resilon showed minimal leakage, which was significantly less than Gutta-Percha.

TL;DR: In this article, the outcomes of initial nonsurgical endodontic treatment done in 1.462,936 teeth of 1.126,288 patients from 50 states across the USA was assessed over a period of 8 years.

TL;DR: The most important influence on defect rates was the operator, which may be related to clinical skill or a conscious decision to use instruments a specified number of times or until defects were evident.

TL;DR: This study assessed the necrotic tissue dissolution capacity of some popular and some potential root-canal irrigants and it was concluded that this might be important when considering the use of irrigants other than NaOCl.

TL;DR: It is suggested that apical periodontitis, although a strong predictor, was secondary to preoperative perforation and root filling quality, and to postoperative restoration, in predicting the outcome of retreatment.

TL;DR: MTA provides an effective seal of root perforations and shows promise in improving the prognosis of perforated teeth that would otherwise be compromised.

TL;DR: In this article, a prospective, randomized, double-blind study was conducted to compare the anesthetic efficacy of 4% articaine with 1:100,000 epinephrine to 2% lidocaine with 1000,000 Epinephrine for patients experiencing irreversible pulpitis in mandibular posterior teeth.

TL;DR: It is suggested that smear layer plays an important role in sealer penetration into the dentinal tubules, as well as in the potential clinical implications, in recently extracted single-rooted teeth.

TL;DR: The clinical success of an endodontic retreatment seems to depend on whether alterations in the natural course of the root canals were caused by previous root-canal treatment.

TL;DR: Manual preflaring creates a glide path for the instrument tip and is a major determinant in reducing the failure rate of these rotary nickel-titanium files.

TL;DR: The mechanisms of bleaching of discolored coronal teeth using hydrogen peroxide (H2O2) were investigated and it was suggested that H2 O2 and * OH do not influence the inorganic tissue of dentin but attack the organic component of dentIn.

TL;DR: Both chlorhexidine gluconate and sodium hypochlorite were significantly effective to reduce the microorganisms in the teeth with necrotic pulp, periapical pathologies, or both, and could be used successfully as an irrigant solution.

TL;DR: After evaluating 500 pulp chambers of extracted teeth, new laws for finding pulp chambers and root-canal orifices are proposed and can aid in the determination of the pulp-chamber position and the exact location and number of root canals in any individual tooth.

TL;DR: It was showed that the apical third cleanliness could be predicted mainly by instrument size and to a lesser extent by the canal length, and Irrigant volume, number of instrument changes, and depth of penetration of irrigation needle were not likely to explain differences in debridement.

TL;DR: Results suggest that ozonated water application may be useful for endodontic therapy and compared the cytotoxicity against L-929 mouse fibroblasts between oz onated water and NaOCl.

TL;DR: In this paper, the authors investigated the anatomical features of C-shaped root canal system in mandibular second molars using micro-computed tomography (μCT) and found that most orifices were found within 3 mm below the cementoenamel junction.

TL;DR: Chlorhexidine is an appropriate irrigant solution for root canal treatment before adhesive post core applications and reduces bond strength to root canal dentin significantly.

TL;DR: One notable finding is the presence of dystrophic calcification in connective tissue adjacent to MTA; this finding is consistent with the hypothesis of hard tissue induction by this material.

TL;DR: Although there are many other factors for irrigation solution preference, 0.2% chlorhexidine gluconate seems to be an appropriate endodontic irrigation solutions because of its harmless effect on the microhardness and roughness of root canal dentin.

TL;DR: The results of this study showed that these three rotary tapered systems were not significantly different with regard to breakage and distortion, but there were significantly more distorted files in the ProFile group when compared with the ProTaper group.

TL;DR: Results suggest that debris is more effectively removed using.04,.06, and.08 ProFile GT instruments when the apical preparation size is larger (size #40) compared with size #20 apical preparations.

TL;DR: Growth at 0.5 increments from pH 9.5 to 12.0 retards growth of E. faecalis, whereas no tubes showed growth at pH 11.5 or greater.

TL;DR: This clinical study indicates that FlexMaster instruments prepared curved canals rapidly and with only minimal straightening.

TL;DR: It was concluded that from a microbiological point of view, treatment of teeth with apical periodontitis performed in two appointments was not more effective than the investigated one-visit procedure.

TL;DR: In this 4- to 10-year cohort study, the outcome was better in subjects >45 years old, teeth with inadequate root-filling length, and crypt size of