Laursenrosenthal8591

6 vs. 82.3 ± 11.3cm, P < 0.001). The risk of preeclampsia increased with larger WC in a multivariate model, adjusted OR 1.02 (95% CI 1.01-1.03). However, when adding BMI into the model, WC was not independently associated with preeclampsia. The AUC value for preeclampsia prediction with BMI and the above variables was 0.738 and remained unchanged with the addition of WC to the model.

Large WC is associated with a higher risk of preeclampsia, but adding WC to a prediction model for preeclampsia that already includes BMI does not improve the model's performance.

Large WC is associated with a higher risk of preeclampsia, but adding WC to a prediction model for preeclampsia that already includes BMI does not improve the model's performance.This study compared prevalence and risk factors of dental anxiety between men and women. The sample consisted of 244 participants (n = 122 men) aged 18 years or older who sought dental care at a public Dental Education Institution from March 2018 to November 2019. The Modified Dental Anxiety Scale was used to determine presence of dental anxiety. The following risk factors were recorded age, years of schooling, preoperative pain, and type of dental treatment. Bivariate analysis was used to assess the difference in dental anxiety between the sexes. Multivariate logistic regression was used to analyze the association between dental anxiety and gender, regardless of the influence of other variables. Total prevalence of dental anxiety was 18% (n = 44), 22.9% (28/122) in women and 13.1% (16/122) in men (p = 0.04). Gender (odds ratio 1.83, 95% confidence interval 0.92-3.62) and preoperative pain (odds ratio 2.095, 95% confidence interval 0.97-4.49) were associated with dental anxiety. We concluded that women had a higher prevalence of dental anxiety. Preoperative pain was associated with dental anxiety regardless of gender.In the field of anthropology, discrete traits are considered as minimal epigenetic variations. However, they can elicit complications in endodontic therapy. ε-poly-L-lysine nmr Thorough understanding of root canal morphology is essential to achieving predictable results in endodontic practice, and may be attained by using cone-beam computed tomography (CBCT) scans. The aim of the present study was to research the internal root anatomy of maxillary central and lateral incisors in vivo and quantify its variation in a population of the Autonomous City of Buenos Aires, Argentina. A total 697 CBCT scans from a pre-existing database were observed, and the configuration type for each tooth was determined according to Vertucci's classification. The data were described by absolute frequencies and percentages with 95% confidence intervals (CI). The CI was estimated by the Wilson Score method. Chi-square test (χ2) was used for comparing frequencies, with a 5% significance level. 238 CBCT scans met the inclusion criteria, resulting in 761 teeth assessed. Vertucci Type I configuration was observed in 760 teeth (99.9%) and the Type II was found in only one tooth (0.1%), in which the anatomy was compatible with dens in dente. When differences were analyzed according to sex, all the teeth in all women had Vertucci Type I configuration. In men, all maxillary central incisors were Vertucci Type I. Of 151 maxillary lateral incisors, 150 had Vertucci Type I configuration (99.3%) and 1 had Type II (0.7%). Conclusions Maxillary incisor internal root anatomy prevalence was estimated from CBCT scans for the first time in an Argentine population. 99.9% of the sample presented Vertucci Type I configuration, and 0.1% had Vertucci Type II configuration. The clinical finding of maxillary incisors with anatomical complexity should be considered as a possibility in endodontic practice.The aim of this descriptive ex vivo study was to evaluate qualitatively the depth of pit and fissures (P&F) of the enamel in human mandibular third molars. Fifty (n=50) extracted human mandibular third molars were cleaned and disinfected. All tooth surfaces were coated with nail varnish except for a 1-mm margin around the periphery of the occlusal surface. The teeth were immersed for 48 hours at 37 °C in 1% methylene blue dye solution prepared in artificial saliva. After cleaning, the crowns were separated from the root at the cementoenamel junction and subsequently sectioned longitudinally in buccolingual direction at the location of the central fossa. All sections were examined using a stereoscopic microscope and photographed. The images were downloaded on a computer. The length of penetration of the P&F was recorded using the following scoring system C1 P&F extended to half of the enamel thickness; C2 P&F extended beyond half of the enamel thickness without reaching the dentine-enamel junction; C3 P&F extended to the dentine-enamel junction. For pits, C1, C2 and C3 were observed in 35, 9 and 6 teeth, respectively, while for fissures, C1, C2 and C3 were observed in 15, 18 and 17 teeth, respectively. The P&F detected in the samples extended to the deepest portions of enamel, quite frequently reaching the enamel-dentine junction. Clinicians should recognize that even if pits and fissures are not clinically obvious, they penetrate deep into the enamel and frequently reach the dentine-enamel junction. Effective treatment is recommended to block access to P&F, thus preventing ingress of bacteria.The aim of this study was to compare low- and high-viscosity bulk-fill composites for Knoop microhardness (KHN), microtensile bond strength (MTBS) to dentin in occlusal cavities, and fracture strength (FS) in molars with mesialocclusal- distal restoration. Disk-shaped samples with different thicknesses (2 or 4 mm) of low-viscosity (SDR Flow, Dentsply) and high-viscosity bulk-fill composites (Filtek BulkFill, 3M ESPE; and Tetric-N Ceram Bulk Fill, Ivoclar Vivadent) were prepared for top and bottom KHN analysis (n=10). MTBS to dentin and fracture pattern was evaluated in human molars with occlusal cavities restored with (n=10) conventional nanocomposite (Z350XT, 3M ESPE), low-viscosity (Filtek Bulk-fill Flow, 3M ESPE) or high-viscosity bulk-fill composites (Filtek BulkFill). The FS and fracture pattern of human molar with mesial-occlusal-distal restorations submitted or not to thermomechanical cycling were investigated (n=10) using intact tooth (control), and restoration based on conventional microhybrid composite (Z250, 3M ESPE), low-viscosity (SDR Flow) or high-viscosity bulk-fill composites (Filtek BulkFill). The data were submitted to split-plot ANOVA (KHN), one-way ANOVA (MTBS), two-way ANOVA (FS) followed by Tukey's test (α=0.05). For KHN, there was no significant difference for the resin composites between the top and bottom. For MTBS, no significant differences among the materials were detected; however, the low-viscosity composite presented lower frequency of adhesive failures. For FS, there was no significant difference between composites and intact tooth regardless of thermomechanical cycling. Low- and high-viscosity bulk-fill composites have comparable microhardness and microtensile bond strength when used in occlusal restorations. Likewise, the bulk-fill composites present similar fracture strength in molars with mesio-occlusal-distal restorations.Adhesively cemented fiber-reinforced composite posts are commonly used to reconstruct endodontically treated teeth. Adhesion to intraradicular dentin is complex, and close contact between the resin cements and the dentin is essential. The removal of the smear layer following post space preparation (secondary smear layer) can improve this integration. Different mechanical systems have been used to activate the irrigant inside the root canal. The purpose of this study was to compare, ex-vivo, the removal of the smear layer from the walls of the immediate post space preparation by the action of three mechanized instruments. Forty premolar specimens with a single root canal were selected, endodontically treated, and shaped for glass fiber post cementation with Peeso reamer #1 (Dentsply Sirona, Switzerland) and Macrolock finishing drill #3 (RTD, France). The specimens were randomly divided into 4 groups (n=10) Group C (control); Group PUI (passive ultrasonic irrigation); Group CEP (Rotoprox brush, Hager Werken, Germany) and Group XP (XP-endo Finisher, FKG Dentaire, Switzerland). Post space surfaces were cleaned with 3mL of distilled water; each specimen root split longitudinally to expose the root canals, and prepared for examination in a scanning electron microscope at magnification 350X. The results were analyzed using the Kruskal-Wallis and Friedman tests (p>0.05). RESULTS Statistically significant differences (p less then 0.05) were found between Groups C and XP in all three root regions, but not between Groups C, CEP and PIU. Of these, Group CEP showed a better trend in the results of the coronary and middle thirds, without significant difference with Group XP. Although it was difficult to achieve a clean dentin surface after preparation for the fiberglass post, the XP-endo Finisher was the most efficient in removing secondary smear layer, followed by the Rotoprox conical brush.The aim of this study was to determine the frequency and severity of dental fluorosis (DF) and the association between severity and risk factors. In a cross-sectional study, 8- to 12-year-old children, born in a Colombian district, were evaluated according to the Thylstrup and Fejerskov Index (TFI) by two calibrated examiners. Molar Incisor Hypomineralization (MIH) and dental caries (DC) were also evaluated. Ordinal logistic regression was applied (p less then 0.05). Risk factors and lifestyle factors were collected using a questionnaire answered by parents. DF was detected in 76 (98.7%) of the children (average of 18.4 ±1.81 permanent teeth affected). Grade TF2 was the most frequently observed (34.8%); TF5 was observed in all age groups; TF6- TF7 were observed in 12-year-olds. No association was found between DF severity and DC (Odds Ratio (OR)=1.35; 95%CI 0.56-3.26) or MIH (OR=1.39; 95%CI 0.43-4.46). DF severity was significantly associated with use of an indoor wood stove for food preparation (OR = 9.34; 95%CI 1.11-78.57) and use of a pea-sized volume of toothpaste (OR = 27.42; 95%CI 1.57-477.36). Prevalence of DC was 38.1% and prevalence of MIH was 14.4%. In this population, the frequency of DF was high and severity was associated with use of an indoor wood stove for food preparation and toothpaste amount used during childhood.The aim of this study was to determine prevalence and describe the clinical and radiographic findings of three-rooted primary mandibular first and second molars in a Mexican population. Intraoral periapical radiograph, orthopantomogram or cone beam computed tomography (CBCT) were obtained. A total 2284 children from the state of Puebla, Mexico were examined, of whom 20 presented an anatomic variant in tooth crown shape. Of the total teeth with crown alterations, 10 first and 5 second primary mandibular molars were found to have supernumerary roots. In one case, it was possible to obtain micro-CT images. The study recorded prevalence, unilateral or bilateral occurrence, and ratio between sexes. Data were analyzed using descriptive statistics. Clinical findings were presence of an anatomical variation (tuberculum paramolare / right and/or left cervical convexity) in primary mandibular first molars. Second molars presented conventional crown morphology. Prevalence of three-rooted primary mandibular first and second molars was 0.