cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15156/bio/sh1758960.08fu
title: SH1758960.08FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.15156/bio/sh392995.07fu
title: SH392995.07FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.15156/bio/sh1758961.08fu
title: SH1758961.08FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.15468/dl.qau7jg
title: Occurrence Download

description: A dataset containing 6 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Lagurus ovatus",
 "Country is Japan",
 "HasCoordinate is true"
 ]
}

 The dataset includes 6 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0013312-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vtgh6q
title: Occurrence Download

description: A dataset containing 196623 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Medicago sativa",
 "Year 1958-2022"
 ]
}

 The dataset includes 196623 records from 1935 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0013255-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.7512998
title: Bond strength comparative analysis of a conventional cement with a self-adhesive cement after different treatments on the fiberglass post surface

description: Abstract Introduction The fiberglass posts are an alternative to the metal cast, presenting some advantages, such as aesthetics, tensile modulus similar to dentin and can be placed in a single session, immediately after the endodontic treatment. It also has the ability to adhere to the resin cement and the last to dentin by means of bonding techniques. Objective To compare the adhesion of a conventional resin cement with a self-adhesive to fiberglass posts, and the effects of different surface treatments on adhesion of posts. Material and method Thirty fiber posts were divided into 3 groups: control: untreated surface; Blasting: blasting with aluminum oxide for 30 seconds and peroxide: immersion in 24% hydrogen peroxide for 1 minute. Then, the samples were obtained from resin cement cylinders containing the fiber post positioned in the center of its long axis. In each group 5 posts were associated with the adhesive Ambar+conventional cement Allcem Core and the other 5 posts with the self-adhesive cement RelyX U200. The post/cement sample was segment in discs and evaluated for bond strength (BS) by push-out test. Data were analyzed statistically by ANOVA and Tukey tests (p&lt;0.05). Result The cements evaluated exhibited similar BS values. Regarding surface treatments, the highest BS values were found in blasting group. Conclusion Conventional cement, Allcem Core, and self-adhesive, RelyX U200, showed similar bond strength values. Also, blasting with aluminum oxide favored the adhesion of posts to cements.
DOI: 10.6084/m9.figshare.7512998.v1
title: Bond strength comparative analysis of a conventional cement with a self-adhesive cement after different treatments on the fiberglass post surface

description: Abstract Introduction The fiberglass posts are an alternative to the metal cast, presenting some advantages, such as aesthetics, tensile modulus similar to dentin and can be placed in a single session, immediately after the endodontic treatment. It also has the ability to adhere to the resin cement and the last to dentin by means of bonding techniques. Objective To compare the adhesion of a conventional resin cement with a self-adhesive to fiberglass posts, and the effects of different surface treatments on adhesion of posts. Material and method Thirty fiber posts were divided into 3 groups: control: untreated surface; Blasting: blasting with aluminum oxide for 30 seconds and peroxide: immersion in 24% hydrogen peroxide for 1 minute. Then, the samples were obtained from resin cement cylinders containing the fiber post positioned in the center of its long axis. In each group 5 posts were associated with the adhesive Ambar+conventional cement Allcem Core and the other 5 posts with the self-adhesive cement RelyX U200. The post/cement sample was segment in discs and evaluated for bond strength (BS) by push-out test. Data were analyzed statistically by ANOVA and Tukey tests (p&lt;0.05). Result The cements evaluated exhibited similar BS values. Regarding surface treatments, the highest BS values were found in blasting group. Conclusion Conventional cement, Allcem Core, and self-adhesive, RelyX U200, showed similar bond strength values. Also, blasting with aluminum oxide favored the adhesion of posts to cements.
DOI: 10.6084/m9.figshare.7508180
title: Treatment profile at dental urgent care clinic for children and teenagers from Faculdade de Odontologia de Araraquara (FOAr) – UNESP

description: Abstract Introduction: Urgency care is a common practice in pediatric dentistry but little is known about the profile of these visits. Objective: To evaluate the profile of patients aged between 0 and 13 years assisted at the Urgency Unit offered by FOAr, from 1997 to 2012, in order to quantify patients and procedures performed and identify the most frequently treatments performed. Material and method: In this observational transversal study, the reports of urgency service provided by the Integrated Clinical System were analyzed for the number of patients, treatments and type of procedures performed. The procedures were classified into seven categories: Diagnosis, Preventive, Anesthesia, Endodontic, Restorative, Surgical and Others. The data were organized and analyzed descriptively. Results: From 1997 to 2012, a total of 13,849 patients were treated in 25,786 visits and 86,279 procedures were conducted. A decrease in the number of patients assisted was observed. However, the number of appointments and the number of procedures did not decrease at the same ratio. Diagnosis procedures were the most frequent procedure performed, followed by preventive procedures. Restorative and endodontic treatments were the most frequent operative procedure performed. Dental surgeries were done less frequently. Conclusion: A profile change in the dental urgent treatment was observed throughout the years. Despite a reduction in the number of patients assisted, the number of visits and the amount of procedures performed remained stable. The procedures performed are in agreement with the profile of a dental urgent care clinic.
DOI: 10.6084/m9.figshare.7508180.v1
title: Treatment profile at dental urgent care clinic for children and teenagers from Faculdade de Odontologia de Araraquara (FOAr) – UNESP

description: Abstract Introduction: Urgency care is a common practice in pediatric dentistry but little is known about the profile of these visits. Objective: To evaluate the profile of patients aged between 0 and 13 years assisted at the Urgency Unit offered by FOAr, from 1997 to 2012, in order to quantify patients and procedures performed and identify the most frequently treatments performed. Material and method: In this observational transversal study, the reports of urgency service provided by the Integrated Clinical System were analyzed for the number of patients, treatments and type of procedures performed. The procedures were classified into seven categories: Diagnosis, Preventive, Anesthesia, Endodontic, Restorative, Surgical and Others. The data were organized and analyzed descriptively. Results: From 1997 to 2012, a total of 13,849 patients were treated in 25,786 visits and 86,279 procedures were conducted. A decrease in the number of patients assisted was observed. However, the number of appointments and the number of procedures did not decrease at the same ratio. Diagnosis procedures were the most frequent procedure performed, followed by preventive procedures. Restorative and endodontic treatments were the most frequent operative procedure performed. Dental surgeries were done less frequently. Conclusion: A profile change in the dental urgent treatment was observed throughout the years. Despite a reduction in the number of patients assisted, the number of visits and the amount of procedures performed remained stable. The procedures performed are in agreement with the profile of a dental urgent care clinic.
DOI: 10.6084/m9.figshare.7511117
title: Additional chemical polymerization of dual resin cements: reality or a goal to be achieved?

description: Abstract Introduction This study serves as a warning to dentists and researchers that dual-cured resin cements may not polymerize completely under some prosthetic crowns. Objective The aim of this study was to analyse the polymerization degree of dual-cured resin cements under prosthetic barrier, by microhardness test. Material and method Three cements (Bistite II, RelyX ARC and Variolink II) were light-cured through different barriers, placed between the cement and the light source: G1: without barrier; G2: composite resin (Cesead); G3: Inceram alumina; G4: IPS Empress; G5: Inceram zirconia; G6: tooth fragment. Photopolymerization was carried out using a halogen light unit (650 mW/cm2); microhardness was evaluated using the Microhardness Tester FM 700, under a load of 50gf with a dwell time of 15s, at two evaluation times (30min and 24h). Result The results were submitted to ANOVA and Tukey tests (5%). Both Inceram alumina and Inceram zirconia ceramic barriers hindered polymerization. Bistite, followed by RelyX and Variolink, exhibited the highest microhardness values (p&lt;0.05). As the highest values were obtained without a barrier, it was determined that the barrier, followed by the tooth, influenced microhardness. Both Empress and Cesead had the smallest microhardness values but with no statistically significant difference between them. Conclusion The barrier negatively affected the microhardness of dual-cured resin cements; evaluation time did not affect microhardness values for most of the conditions tested. There is a limited effect of the chemical activator on the polymerization of some dual-cured cements, and their performance is product specific.
DOI: 10.6084/m9.figshare.7511117.v1
title: Additional chemical polymerization of dual resin cements: reality or a goal to be achieved?

description: Abstract Introduction This study serves as a warning to dentists and researchers that dual-cured resin cements may not polymerize completely under some prosthetic crowns. Objective The aim of this study was to analyse the polymerization degree of dual-cured resin cements under prosthetic barrier, by microhardness test. Material and method Three cements (Bistite II, RelyX ARC and Variolink II) were light-cured through different barriers, placed between the cement and the light source: G1: without barrier; G2: composite resin (Cesead); G3: Inceram alumina; G4: IPS Empress; G5: Inceram zirconia; G6: tooth fragment. Photopolymerization was carried out using a halogen light unit (650 mW/cm2); microhardness was evaluated using the Microhardness Tester FM 700, under a load of 50gf with a dwell time of 15s, at two evaluation times (30min and 24h). Result The results were submitted to ANOVA and Tukey tests (5%). Both Inceram alumina and Inceram zirconia ceramic barriers hindered polymerization. Bistite, followed by RelyX and Variolink, exhibited the highest microhardness values (p&lt;0.05). As the highest values were obtained without a barrier, it was determined that the barrier, followed by the tooth, influenced microhardness. Both Empress and Cesead had the smallest microhardness values but with no statistically significant difference between them. Conclusion The barrier negatively affected the microhardness of dual-cured resin cements; evaluation time did not affect microhardness values for most of the conditions tested. There is a limited effect of the chemical activator on the polymerization of some dual-cured cements, and their performance is product specific.
DOI: 10.6084/m9.figshare.7514276
title: Measurement of erosive potential of candies dissolved in water and artificial saliva

description: Abstract Introduction Excessive and frequent consumption of acid candy is associated with the etiology of dental erosion. Objective This study aimed to measure and compare the pH and titratable acidity of candies dissolved in water and artificial saliva. Material and method Tic Tac® candies were used with the flavors: orange, cherry / passion fruit and strawberry, grouped into 2 groups. G-1: candies dissolved in water; G-2: candies dissolved in artificial saliva. The candies were crushed and, from the resulting powder of each flavor, two samples were weighed 20 g and dissolved in 120 ml of distilled water or 120 ml of artificial saliva. For these solutions were obtained 3 samples of 30 mL each flavor, allowing the determination of pH and titratable acidity in triplicate.. The pH was measured using a potentiometer and glass electrode calibrated with standard solutions pH 7.0 and pH 4.0. To check the titratable acidity, aliquots of 100 uL NaOH 1M were added until the pH reached 5.5. The results were submitted to the Analysis of Variance (ANOVA). Mean comparisons were performed by Tukey test at a 5% level of significance (p&lt;0.05). Result All candies had pH below the critical values for dissolution of enamel when dissolved in water and artificial saliva. Comparing the groups, the G-2, showed a pH higher and lower titratable acidity, significantly differing from the G-1. Conclusion All acid candies dissolved in water and artificial saliva proved to be potentially erosive could contribute to the etiology of dental erosion.
DOI: 10.6084/m9.figshare.7514276.v1
title: Measurement of erosive potential of candies dissolved in water and artificial saliva

description: Abstract Introduction Excessive and frequent consumption of acid candy is associated with the etiology of dental erosion. Objective This study aimed to measure and compare the pH and titratable acidity of candies dissolved in water and artificial saliva. Material and method Tic Tac® candies were used with the flavors: orange, cherry / passion fruit and strawberry, grouped into 2 groups. G-1: candies dissolved in water; G-2: candies dissolved in artificial saliva. The candies were crushed and, from the resulting powder of each flavor, two samples were weighed 20 g and dissolved in 120 ml of distilled water or 120 ml of artificial saliva. For these solutions were obtained 3 samples of 30 mL each flavor, allowing the determination of pH and titratable acidity in triplicate.. The pH was measured using a potentiometer and glass electrode calibrated with standard solutions pH 7.0 and pH 4.0. To check the titratable acidity, aliquots of 100 uL NaOH 1M were added until the pH reached 5.5. The results were submitted to the Analysis of Variance (ANOVA). Mean comparisons were performed by Tukey test at a 5% level of significance (p&lt;0.05). Result All candies had pH below the critical values for dissolution of enamel when dissolved in water and artificial saliva. Comparing the groups, the G-2, showed a pH higher and lower titratable acidity, significantly differing from the G-1. Conclusion All acid candies dissolved in water and artificial saliva proved to be potentially erosive could contribute to the etiology of dental erosion.
DOI: 10.6084/m9.figshare.7510712
title: Influence of diameter and intraradicular post in the stress distribution. Finite element analysis

description: Abstract Introduction The biomechanical behavior of endodontically treated teeth depending on the selected restorative material and tooth situation to be restored. Objective To analyze by the two-dimensional finite element method the biomechanical behavior of different diameters in intraradicular posts and teeth with coronal remaining of 2mm. Material and method Six models were made with three types of posts, as follows: Glass fiber post, carbon fiber post, and cast metal post, both with diameter # 1 (1.1 mm in diameter) and # 2 (1.3 mm of diameter). The modeling was performed using the Rhinoceros 4.0 program. The FEMAP 10.2 and NEiNastran 9.2 programs were used to develop finite element models. The loading used was 100N for axial and oblique forces. The results were visualized using the von Mises stress map. The statistical analysis was made using analysis of variance (ANOVA) and Tukey post-test, with a significance level of 5%. Result The oblique loading stress values were higher than the axial loading (p&lt;0.001) for both situations. The glass fiber post showed the lowest concentrations of stress on both loads (p&lt;0.001). The carbon fiber post presented significant difference compared to the cast metal post, only in the oblique load (p=0.007). The diameter did not increase the stress of the evaluated posts (p=0.302). Conclusion The fiber posts were more favorable for restoration of endodontically treated teeth; the increase of diameter did not influence the increase of tension; the oblique load was more harmful for both posts and tooth structure.
DOI: 10.6084/m9.figshare.7510712.v1
title: Influence of diameter and intraradicular post in the stress distribution. Finite element analysis

description: Abstract Introduction The biomechanical behavior of endodontically treated teeth depending on the selected restorative material and tooth situation to be restored. Objective To analyze by the two-dimensional finite element method the biomechanical behavior of different diameters in intraradicular posts and teeth with coronal remaining of 2mm. Material and method Six models were made with three types of posts, as follows: Glass fiber post, carbon fiber post, and cast metal post, both with diameter # 1 (1.1 mm in diameter) and # 2 (1.3 mm of diameter). The modeling was performed using the Rhinoceros 4.0 program. The FEMAP 10.2 and NEiNastran 9.2 programs were used to develop finite element models. The loading used was 100N for axial and oblique forces. The results were visualized using the von Mises stress map. The statistical analysis was made using analysis of variance (ANOVA) and Tukey post-test, with a significance level of 5%. Result The oblique loading stress values were higher than the axial loading (p&lt;0.001) for both situations. The glass fiber post showed the lowest concentrations of stress on both loads (p&lt;0.001). The carbon fiber post presented significant difference compared to the cast metal post, only in the oblique load (p=0.007). The diameter did not increase the stress of the evaluated posts (p=0.302). Conclusion The fiber posts were more favorable for restoration of endodontically treated teeth; the increase of diameter did not influence the increase of tension; the oblique load was more harmful for both posts and tooth structure.
DOI: 10.6084/m9.figshare.7517861
title: Evaluation of the presence of furcation canal in molars by the scanning electron microscopy

description: Abstract Introduction The pulp cavity is still a mystery to be solved, because there may be numerous branches that need to be clarified so that the clinician can interpret and develop its role properly. One of the anatomical variations, which presents great controversy in the literature, is the recognition of the presence of the furcation canal. This canal comes from the pulp chamber floor, traverses the inter-radicular dentin and reaches the periodontal ligament in furcation region, constituting one of the lines of communication between the periodontal ligament and the pulp tissue, and may serve as a means of contamination. Objective To study the frequency of furcation canals in molars. Material and method Review of 5 (five) maxillary first molars, 10 (ten) maxillary seconds molars, 10 (ten) mandibular first molars and 10 (ten) mandibular seconds molars, using scanning electron microscopy. Result It was observed the presence of foramina in 30 floors and 50 of furcas of the mandibular first molar and 40 and 60 on the floor and furca of the mandibular second molar, respectively. The diameter of these foraminas ranged from 32 µm up to 312 µm. Conclusion The prevalence of furcation canal is variable when analyzing the different methodologies.