ABSTRACT
Teeth with crown structure less than 50% can be restored. Therefore, it is of interest to evaluate an in vitro efficacy of Zirconia post, Glass fiber post, polyethylene-woven fiber posts, and Quartz posts. Forty eight recently extracted mandibular first premolar teeth were randomly grouped in to 4 different groups with 12 samples in each group. After endodontic treatment samples in all groups underwent post preparation followed by restoration with respective posts. The mean fracture resistance (Newton) were 463.5 ± 14.3 (Group I) 425.2± 23.5 (group II), 410.4± 18.6 (Group 3) and 385.2 ± 14.2 (group 4). Data shows that Zirconia post had highest fracture resistance compared to other tested groups.
ABSTRACT
Background: In recent times, single-sitting root canal therapy has gained momentum over multiple-sitting root canal therapy due to its superior clinical outcome and less time required for treating the patient. Aim: Thus, the aim of current study was to compare the expression of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and high-sensitivity C-reactive protein (hs-CRP) in the serum of patients undergoing single-sitting and multiple-sitting root canal treatment. Materials and Methods: This cross-sectional experimental study was conducted on 300 subjects who were indicated for root canal treatment. Subjects were categorized into Group I (single visit) and Group II (multiple visits).Clinical data was obtained and serum samples were collected both before and after 1 week of treatment completion. Inclusion criteria were those patients (a) over 18 years of age, (b) without any disease of inflammatory etiology, and (c) who had not previously received endodontic treatment or any related therapeutic treatment. Exclusion criteria were those (a) without a complete clinical history, (b) with greater than one indicated tooth, (c) who did not complete their treatment, and (d) with any periodontal disease. Chi-square and Student's t-test were applied. Results: It was found that in single-sitting root canal treatment, there was a statistically significant reduction in these inflammatory biomarkers, although no difference in clinical efficacy was observed. Conclusion: Single-visit root canal treatment is a better option for treatment of pulpitis compared to multiple-sitting treatment.
ABSTRACT
BACKGROUND: Safe and efficient pain control is essential for today's dental practice. This randomized controlled study was conducted to evaluate the effectiveness of 0.5% bupivacaine with 4% articaine in lower molar tooth extraction. METHODS: One hundred subjects were classified into two groups, with 50 samples for each. Group A participants were managed with 0.5% bupivacaine with 1:200,000 epinephrine and group B participants with 4% articaine with 1:100,000 epinephrine for mandibular first and second molar extraction. Criteria such as onset and duration of anesthesia, pain throughout the procedure, pain during injection, and pain after the procedure were evaluated. Systolic and diastolic blood pressure (mmHg) and heart rate (per minute)were evaluated for all participants. RESULTS: There was a faster onset (53.2 vs 83.1 s) and lesser duration of action (216.6 vs 298.4 min) with articaine (group B) compared to bupivacaine (group A). Thirty-eight (76.0%) participants in group A and 44 (88.0%) participants in group B did not require re-anesthesia, whereas 12 (24%) participants in group A and six (12%) participants in group B required one-time re-anesthesia and it was insignificant. CONCLUSION: Articaine has a faster onset but a relatively lower duration of action and requires statistically insignificant but lower re-anesthesia. As a result, articaine anesthesia can be efficiently recommended in oral surgical techniques.
