Journal of endodontics
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Journal of endodontics · Dec 2012
Randomized Controlled Trial Comparative StudyA prospective, randomized single-blind evaluation of effect of injection speed on anesthetic efficacy of inferior alveolar nerve block in patients with symptomatic irreversible pulpitis.
Speed of injection may affect the solution spread in the pterygomandibular space. It was hypothesized that speed of injection will affect the anesthetic efficacy of inferior alveolar nerve block (IANB) in patients with symptomatic irreversible pulpitis. ⋯ Rate of injection has no effect on anesthetic success of IANB, but slow injections were more comfortable than rapid injections.
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Journal of endodontics · Dec 2012
Randomized Controlled Trial Comparative StudyAnesthetic efficacy of the inferior alveolar nerve block in red-haired women.
The exact reasons for failure of the inferior alveolar nerve (IAN) block are not completely known, but red hair could play a role. The genetic basis for red hair involves specific mutations, red hair color (RHC) alleles, in the melanocortin-1 receptor (MC1R) gene. The purpose of this prospective randomized study was to investigate a possible link between certain variant alleles of the MC1R gene or its phenotypic expression of red hair and the anesthetic efficacy of the IAN block in women. ⋯ Red hair and the MC1R gene were significantly linked to higher levels of dental anxiety but were unrelated to success rates of the IAN block in women with healthy pulps.
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Journal of endodontics · Sep 2012
Randomized Controlled Trial Comparative StudySuccess rate of single- versus two-visit root canal treatment of teeth with apical periodontitis: a randomized controlled trial.
The aim of this study was to evaluate the outcome of single- versus 2-visit root canal treatment of teeth with apical periodontitis after a 2-year follow-up period. ⋯ Several factors play an important role in the decision-making process of 1- versus 2-visit endodontics. Among these are objective factors like preoperative diagnosis, the ability to obtain infection control, root canal anatomy, procedural complications, and subjective factors like patients' signs and symptoms. This study provided evidence that with a treatment protocol with instrumentation to predefined larger apical instrumentation sizes and irrigation with a negative apical pressure system can lead to healing in cases of apical periodontitis, which is a significant finding compared with more dated studies that showed average healing of apical periodontitis cases. With the given sample size, there was no statistically significant difference between the 2 treatment modalities.
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Journal of endodontics · Aug 2012
Randomized Controlled Trial Comparative StudyEffect of bupivacaine on postoperative pain for inferior alveolar nerve block anesthesia after single-visit root canal treatment in teeth with irreversible pulpitis.
Pain control after root canal treatment is of great importance in endodontic practice. The aim of the present study was to investigate the effect of a long-acting anesthetic (bupivacaine) on postoperative pain and the use of analgesics after root canal treatment. ⋯ Patients who received bupivacaine as the anesthetic agent for single-visit endodontic treatment of irreversible pulpitis in mandibular molars had significantly less early postoperative pain and used fewer analgesics than those who had lidocaine as the anesthetic.
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Journal of endodontics · Jun 2012
Randomized Controlled Trial Comparative StudyComparative evaluation of 1.8 mL and 3.6 mL of 2% lidocaine with 1:200,000 epinephrine for inferior alveolar nerve block in patients with irreversible pulpitis: a prospective, randomized single-blind study.
There is a decrease in the anesthetic efficacy of inferior alveolar nerve blocks in patients with irreversible pulpitis. It was hypothesized that the increasing the volume of anesthetic solution may improve the success rates of dental pulp anesthesia in patients with pulpal pain. ⋯ Increasing the volume of 2% lidocaine to 3.6 mL improved the success rate as compared with 1.8 mL but did not give a clinical success rates of 100%.