Aim:This in vitro study evaluated and compared the marginal adaptation of three newer root canal sealers to root dentin.Materials and Methods:Thirty freshly extracted human single-rooted teeth with completely formed apices were taken. Teeth were decoronated, and root canals were instrumented. The specimens were randomly divided into three groups (n = 10) based upon the sealer used. Group 1 - teeth were obturated with epoxy resin sealer (MM-Seal). Group 2 - teeth were obturated with mineral trioxide aggregate (MTA) based sealer (MTA Fillapex), Group 3 - teeth were obturated with bioceramic sealer (EndoSequence BC sealer). Later samples were vertically sectioned using hard tissue microtome and marginal adaptation of sealers to root dentin was evaluated under coronal and apical halves using scanning electron microscopy (SEM) and marginal gap values were recorded.Results:The data were statistically analyzed by two-way ANOVA and Tukey's multiple post hoc test. The highest marginal gap was seen in Group 2 (apical-16680.00 nm, coronal-10796 nm) and the lowest marginal gap was observed in Group 1 (apical-599.42 nm, coronal-522.72 nm). Coronal halves showed superior adaptation compared to apical halves in all the groups under SEM.Conclusion:Within the limitations of this study epoxy resin-based MM-Seal showed good marginal adaptation than other materials tested.
Background
Periodontitis can trigger and perpetuate inflammation in several chronic inflammatory diseases. The association of periodontitis with psoriasis has been investigated earlier, but data are incomplete and the influence of confounders has not been fully evaluated.
We examined the relationship of dental and periodontal health parameters in patients with psoriasis and/or psoriatic arthritis.
Methods
This hospital-based cross-sectional analytical study was conducted in patients with chronic plaque psoriasis, psoriatic arthritis or both, and compared with controls. Dental and periodontal health parameters were assessed based on the WHO oral health assessment method. Multivariate logistic regression was done on variables with significant or near-significant values to find the association between periodontitis and psoriasis and/or psoriatic arthritis after adjusting for confounders.
Results
Psoriasis and/or psoriatic arthritis were independently and significantly associated with periodontal pockets ≥4 mm in depth.
Limitations
Causality and temporal relationship cannot be established as this was a cross-sectional study. As in all observational studies, the possibility of unmeasured or unknown confounders exists. Psoriatic arthritis was present only in a small subset of patients.
Conclusion
Patients with psoriasis and/or psoriatic arthritis have significant periodontal inflammation. This needs to be addressed by dental examination and intervention.
BackgroundThere is a lack of evidence-based practice regarding the duration of pressure pack placement following tooth extraction. This study aimed to compare the incidence of post-extraction bleeding following 60 minutes versus 10 minutes of pressure pack placement.
MethodologyA randomized controlled trial was conducted at a tertiary care hospital and included patients requiring intraalveolar tooth extractions. Patients were randomly allocated into the experimental group or control group by a permuted block randomization method. A blinded observer noted the incidence of post-extraction bleeding. Categorical variables were summarized as frequency and percentage. The chi-square test was used for intergroup statistical analysis. P-values <0.05 were considered statistically significant.
ResultsThere were 528 participants, 264 of whom were allocated to each group. The incidence of post-extraction bleeding was 8% and 6.8% in the experimental and control groups, respectively. On bivariate analysis, there was no statistically significant difference between the two groups (p = 0.618; relative risk with 95% confidence interval = 1.0).
ConclusionsIn the majority of cases, hemostasis was achieved in 10 minutes. Therefore, removing the pressure pack after 10 minutes may be advised to ensure hemostasis and, ultimately, save chairside time.
Aim:The success of an endodontic treatment depends on the complete elimination of the microorganisms from the root canal system for which effective eradication of smear layer is crucial. Hence, various final irrigating solutions were introduced in endodontics. The aim of this in vitro study is to compare the smear layer removal efficacy of different final irrigating solutions at the apical third of the root canal through scanning electron microscopic (SEM) image analysis.Materials and methods: Forty human single-rooted mandibular premolar teeth were taken and decoronated to standardize the canal length. Each tooth was prepared endodontically with same chemomechanical technique and the teeth were randomly divided into four groups based on the final irrigation regimen. Group I: saline, group II: Tubulicid Plus, group III: BioPure MTAD, and group IV: QMix. After final irrigation, SEM evaluation was done for the assessment of removal of the smear layer at apical third, and data were analyzed using the Kruskal-Wallis test and Mann-Whitney U test.Results: Intergroup comparison of the groups showed statistically significant differences in the smear layer removal efficacy of irrigating solutions tested. QMix is most effective in the removal of smear layer when compared with other tested irrigating solutions.
Conclusion:QMix is the most effective final irrigating solution for smear layer removal followed by MTAD and Tubulicid Plus.
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