cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.9956768
title: Clinical and histopathological study of actinic cheilitis

description: Abstract Introduction Actinic cheilitis is a inflammatory condition affecting mainly the lower lip and it is caused by chronic and excessive exposure of the lips to the ultraviolet radiation in sunlight. Objective Identifying clinical and histopathologic characteristics in 40 cases histopathologically diagnosed as actinic cheilitis. In addition, to investigate possible associations between these aspects. Method Defined as an observational, transversal, retrospective and descriptive study, it registered data regarding age, gender, occupation, symptomatology, records of sun exposure, frequency of sunblock use, tabagism, skin color, clinical aspect and histopathological classification. The data was submitted to the chi square test of Pearson (p&lt;0.05). Result There was a predominance of male gender, leucodermia, and ages ranging between 50 and 60 years. The most common occupation was farming. From our sample, 85% had history of chronic sun exposure, in which 50% reported the use of some type of sunblock and only 25% were smokers. The main clinical condition was non-ulcerated leukoplakia and in the histopathological study, the hyperkeratosis were more common. A correlation between the degree of tissue alteration verified in the histopathological diagnosis and the studied clinical variables was not established (p=0.112). Conclusion The clinical aspect of the wound can conceal tissue alterations in different stages, emphasizing the importance of a premature diagnosis.
DOI: 10.6084/m9.figshare.9956768.v1
title: Clinical and histopathological study of actinic cheilitis

description: Abstract Introduction Actinic cheilitis is a inflammatory condition affecting mainly the lower lip and it is caused by chronic and excessive exposure of the lips to the ultraviolet radiation in sunlight. Objective Identifying clinical and histopathologic characteristics in 40 cases histopathologically diagnosed as actinic cheilitis. In addition, to investigate possible associations between these aspects. Method Defined as an observational, transversal, retrospective and descriptive study, it registered data regarding age, gender, occupation, symptomatology, records of sun exposure, frequency of sunblock use, tabagism, skin color, clinical aspect and histopathological classification. The data was submitted to the chi square test of Pearson (p&lt;0.05). Result There was a predominance of male gender, leucodermia, and ages ranging between 50 and 60 years. The most common occupation was farming. From our sample, 85% had history of chronic sun exposure, in which 50% reported the use of some type of sunblock and only 25% were smokers. The main clinical condition was non-ulcerated leukoplakia and in the histopathological study, the hyperkeratosis were more common. A correlation between the degree of tissue alteration verified in the histopathological diagnosis and the studied clinical variables was not established (p=0.112). Conclusion The clinical aspect of the wound can conceal tissue alterations in different stages, emphasizing the importance of a premature diagnosis.
DOI: 10.6084/m9.figshare.10295843
title: Evaluation through tomography by optical coherence of dental enamel after the use of clearing dentifrices

description: Abstract Introduction Historically, abrasive materials such as marble powders, corals and bone ashes were used for dental hygiene. With evolution, these materials were replaced by dentifrices applied on toothbrushes for the same purpose. Objective To evaluate, through Optical Coherence Tomography, the wear of dental enamel after the use of different toothbrushes and materials used in brushing with abrasive components. Material and method 50 specimens were prepared, distributed in 10 groups (n=5) according to the toothpaste used. For group A, the Curaprox® Adult Ultra Macia toothbrush was used and for group B, the soft toothbrush K® - soft adult toothbrush. The following brushing materials were used: Curaprox® Black is White; Colgate® Luminous White Instant, Close Up® White Attraction - MenSuperpure; Activated Charcoal; Distilled Water. The images were performed before and after the brushing cycle and were compared for surface changes. The loss of the surface structure was evaluated through qualitative and quantitative methods. Statistical analysis of the data was performed using the statistical methods Mann-Whitney, Kruskal-Wallis, with significance level of 5%, mean, standard deviation, median and percentiles. Result A higher index of loss of enamel structure was observed in the G2A (16.09) and G2B (11.38) groups and a lower structural loss rate in the specimens corresponding to the groups G5A (1,07) and G5B (1,20). Conclusion Through this study it was observed that the whitening dentifrices and the Activated Charcoal are able to promote an intense wear of the dental enamel.
DOI: 10.6084/m9.figshare.11757069
title: Oral health in primary health care: articulations between teaching and the family health strategy

description: Abstract Introduction Oral health in primary health care, with qualified dental professionals in this field, has been described as a promising strategy to promote health. Objective To identify and describe intersectoral articulations, and their contributions to dental professional education, and oral health of children from a city of São Paulo - Brazil. Material and method Field research, cross-sectional, mixed approach and interventionist character. Secondary data were obtained from medical records and reports of dental interns. Dental visits were performed to 455 children from the basic education system and eight interviews with the family members of the children who missed the visits. Descriptive statistics, with simple frequency and percentage, and Content Analysis were used for qualitative data. Result It was found that 42% of the children were at high risk for caries disease. Traumas, fears and poor knowledge of oral hygiene of children and parents had a negative influence on oral health care. In the dental office the weaknesses pointed out by family members were professional unpreparedness, ranging from technical issues to forms of personal approach. Conclusion It is concluded that the practice in primary health care brought the students closer to social reality, expanded and diversified the teaching-learning scenarios with longer time for health education. However, there is a need for further research on effective curriculum experiences in this area.
DOI: 10.6084/m9.figshare.11757069.v1
title: Oral health in primary health care: articulations between teaching and the family health strategy

description: Abstract Introduction Oral health in primary health care, with qualified dental professionals in this field, has been described as a promising strategy to promote health. Objective To identify and describe intersectoral articulations, and their contributions to dental professional education, and oral health of children from a city of São Paulo - Brazil. Material and method Field research, cross-sectional, mixed approach and interventionist character. Secondary data were obtained from medical records and reports of dental interns. Dental visits were performed to 455 children from the basic education system and eight interviews with the family members of the children who missed the visits. Descriptive statistics, with simple frequency and percentage, and Content Analysis were used for qualitative data. Result It was found that 42% of the children were at high risk for caries disease. Traumas, fears and poor knowledge of oral hygiene of children and parents had a negative influence on oral health care. In the dental office the weaknesses pointed out by family members were professional unpreparedness, ranging from technical issues to forms of personal approach. Conclusion It is concluded that the practice in primary health care brought the students closer to social reality, expanded and diversified the teaching-learning scenarios with longer time for health education. However, there is a need for further research on effective curriculum experiences in this area.
DOI: 10.6084/m9.figshare.10295843.v1
title: Evaluation through tomography by optical coherence of dental enamel after the use of clearing dentifrices

description: Abstract Introduction Historically, abrasive materials such as marble powders, corals and bone ashes were used for dental hygiene. With evolution, these materials were replaced by dentifrices applied on toothbrushes for the same purpose. Objective To evaluate, through Optical Coherence Tomography, the wear of dental enamel after the use of different toothbrushes and materials used in brushing with abrasive components. Material and method 50 specimens were prepared, distributed in 10 groups (n=5) according to the toothpaste used. For group A, the Curaprox® Adult Ultra Macia toothbrush was used and for group B, the soft toothbrush K® - soft adult toothbrush. The following brushing materials were used: Curaprox® Black is White; Colgate® Luminous White Instant, Close Up® White Attraction - MenSuperpure; Activated Charcoal; Distilled Water. The images were performed before and after the brushing cycle and were compared for surface changes. The loss of the surface structure was evaluated through qualitative and quantitative methods. Statistical analysis of the data was performed using the statistical methods Mann-Whitney, Kruskal-Wallis, with significance level of 5%, mean, standard deviation, median and percentiles. Result A higher index of loss of enamel structure was observed in the G2A (16.09) and G2B (11.38) groups and a lower structural loss rate in the specimens corresponding to the groups G5A (1,07) and G5B (1,20). Conclusion Through this study it was observed that the whitening dentifrices and the Activated Charcoal are able to promote an intense wear of the dental enamel.
DOI: 10.6084/m9.figshare.11804730
title: Effectiveness of acupuncture, ozonio therapy and low-intensity laser in the treatment of temporomandibular dysfunction of muscle origin: a randomized controlled trial

description: Abstract Introduction One of the most common causes of orofacial pain is temporomandibular disorder (TMD). Objective The aim of this study was to compare the effectiveness of acupuncture, ozone therapy and laser therapy in the treatment of muscle TMD patients through a randomized controlled trial. Material and method Twelve professors and postgraduate students from the University of Passo Fundo, diagnosed with TMD, aged between 23 and 50 years old, of both sexes, were evaluated. Individuals were randomly divided into 3 groups: G1: laser therapy, G2: acupuncture, and G3: ozone therapy. TMD diagnostic questionnaires (RDC / TMD), Quality of Life Questionnaire (OHIP-14), Pain Scale (VAS) and maximum mouth opening were applied. Descriptive statistics and percentage were used for sample characterization, which were presented using absolute and relative frequency distributions. Qualitative variables were analyzed with Wilcoxon tests p≤0.05. Result There was no statistically significant difference between treatments. Regarding pain and maximum mouth opening, the groups showed no statistical difference when individually analyzed, but when compared in general, they did (p=0.002 and p=0.003). Conclusion It can be considered that all treatments were able to decrease pain and improve maximal opening capacity related to muscle TMD. It can also be concluded that the TMD-related quality of life, in relation to the pain variable, was generally effective when compared before and after the interventions.
DOI: 10.6084/m9.figshare.11804730.v1
title: Effectiveness of acupuncture, ozonio therapy and low-intensity laser in the treatment of temporomandibular dysfunction of muscle origin: a randomized controlled trial

description: Abstract Introduction One of the most common causes of orofacial pain is temporomandibular disorder (TMD). Objective The aim of this study was to compare the effectiveness of acupuncture, ozone therapy and laser therapy in the treatment of muscle TMD patients through a randomized controlled trial. Material and method Twelve professors and postgraduate students from the University of Passo Fundo, diagnosed with TMD, aged between 23 and 50 years old, of both sexes, were evaluated. Individuals were randomly divided into 3 groups: G1: laser therapy, G2: acupuncture, and G3: ozone therapy. TMD diagnostic questionnaires (RDC / TMD), Quality of Life Questionnaire (OHIP-14), Pain Scale (VAS) and maximum mouth opening were applied. Descriptive statistics and percentage were used for sample characterization, which were presented using absolute and relative frequency distributions. Qualitative variables were analyzed with Wilcoxon tests p≤0.05. Result There was no statistically significant difference between treatments. Regarding pain and maximum mouth opening, the groups showed no statistical difference when individually analyzed, but when compared in general, they did (p=0.002 and p=0.003). Conclusion It can be considered that all treatments were able to decrease pain and improve maximal opening capacity related to muscle TMD. It can also be concluded that the TMD-related quality of life, in relation to the pain variable, was generally effective when compared before and after the interventions.
DOI: 10.6084/m9.figshare.11839881.v1
title: Evaluation of flow and filling of root canal sealers using different methodologies

description: Abstract Introduction Flow and filling ability of root canal sealers are indispensable for hermetic sealing of the root canal. Micro-computed tomography (micro-CT) can be used as a complementary methodology to evaluate such properties. Objective To evaluate the flow and filling ability of AH Plus, Endofill and Sealapex by conventional methodology and micro-CT. Material and method The flow of the sealers was analyzed according to ISO 6876/2012 and complemented by the area evaluation. Glass plates were manufactured with diameters of 1×1×2 mm and 1×1×1 mm (length, width and height), with a central cavity and four grooves in the horizontal and vertical directions. Each material was placed in the central cavity. Another glass plate and a metal weight were placed on the cement and kept for 10 minutes. The glass plate/sealer set was scanned using micro-CT. The flow was calculated by linear measurement of the material in the grooves. The central filling (mm3) was calculated in the central cavity and the lateral filling was measured up to 2 mm from the central cavity. Data were submitted to ANOVA/Tukey tests (α=0.05). Result All evaluated sealers presented flow according to ISO 6876 standards. The materials showed central cavity filling capacity higher than 80% and lateral filling greater than 75%. There was no difference in flow (mm and mm2) and in the filling ability (mm3) provided by the materials (p&gt;0.05). Conclusion All evaluated root canal sealers showed adequate flow and filling capacity, suggesting their clinical application.
DOI: 10.6084/m9.figshare.11839881
title: Evaluation of flow and filling of root canal sealers using different methodologies

description: Abstract Introduction Flow and filling ability of root canal sealers are indispensable for hermetic sealing of the root canal. Micro-computed tomography (micro-CT) can be used as a complementary methodology to evaluate such properties. Objective To evaluate the flow and filling ability of AH Plus, Endofill and Sealapex by conventional methodology and micro-CT. Material and method The flow of the sealers was analyzed according to ISO 6876/2012 and complemented by the area evaluation. Glass plates were manufactured with diameters of 1×1×2 mm and 1×1×1 mm (length, width and height), with a central cavity and four grooves in the horizontal and vertical directions. Each material was placed in the central cavity. Another glass plate and a metal weight were placed on the cement and kept for 10 minutes. The glass plate/sealer set was scanned using micro-CT. The flow was calculated by linear measurement of the material in the grooves. The central filling (mm3) was calculated in the central cavity and the lateral filling was measured up to 2 mm from the central cavity. Data were submitted to ANOVA/Tukey tests (α=0.05). Result All evaluated sealers presented flow according to ISO 6876 standards. The materials showed central cavity filling capacity higher than 80% and lateral filling greater than 75%. There was no difference in flow (mm and mm2) and in the filling ability (mm3) provided by the materials (p&gt;0.05). Conclusion All evaluated root canal sealers showed adequate flow and filling capacity, suggesting their clinical application.
DOI: 10.6084/m9.figshare.11839884
title: Evaluation of degradation of force of esthetic elastomeric chains

description: Abstract Introduction Elastomers are considered important allies to orthodontic treatment and due to the aesthetic demand, aesthetic elastomers are increasingly used in adult patients. Objective The aim of this experimental in vitro study was to evaluate the degradation of force of esthetic elastomeric chains, of three different sizes: short, medium and long. Material and method For evaluating the degradation of force, 90 elastomeric chain segments were used, divided into 9 Groups (n=10), as follows: Morelli short elastomer, Morelli medium, Morelli long, Orthometric short, Orthometric medium, Orthometric long, American Orthodontic short, American Orthodontic medium and American Orthodontic long. Acrylic plates with pins were used to provide stretching of the elastomeric chains. The initial stretching force of the elastomeric chain was 150 grams, measured by a tensiometer. After this, they were prestretched to 50% of their original length, measured in an Instron 4411 Universal test machine, and placed on the seating pin on the plate. The plate was immersed in artificial saliva at 37 °C in a plastic receptacle, and removed for measurement after a time interval of 21 days. For statistical analysis, the methodology of mixed models for repeated measures in time and Tukey-Kramer test were used. Degradation of the forces was analyzed by 2-way analysis of variance (ANOVA) and the Tukey test. Result All the elastomeric chains showed statistically significant reduction in force (p&lt;0.05). The American Orthodontic elastomeric chains showed higher reduction in force values, irrespective of the elastic size (p&lt;0.05). Conclusion The three commercial brands studied underwent significant reduction in the quantity of force released; the American Orthodontic brand of elastomer showed the highest value of degradation in force.
DOI: 10.6084/m9.figshare.11839884.v1
title: Evaluation of degradation of force of esthetic elastomeric chains

description: Abstract Introduction Elastomers are considered important allies to orthodontic treatment and due to the aesthetic demand, aesthetic elastomers are increasingly used in adult patients. Objective The aim of this experimental in vitro study was to evaluate the degradation of force of esthetic elastomeric chains, of three different sizes: short, medium and long. Material and method For evaluating the degradation of force, 90 elastomeric chain segments were used, divided into 9 Groups (n=10), as follows: Morelli short elastomer, Morelli medium, Morelli long, Orthometric short, Orthometric medium, Orthometric long, American Orthodontic short, American Orthodontic medium and American Orthodontic long. Acrylic plates with pins were used to provide stretching of the elastomeric chains. The initial stretching force of the elastomeric chain was 150 grams, measured by a tensiometer. After this, they were prestretched to 50% of their original length, measured in an Instron 4411 Universal test machine, and placed on the seating pin on the plate. The plate was immersed in artificial saliva at 37 °C in a plastic receptacle, and removed for measurement after a time interval of 21 days. For statistical analysis, the methodology of mixed models for repeated measures in time and Tukey-Kramer test were used. Degradation of the forces was analyzed by 2-way analysis of variance (ANOVA) and the Tukey test. Result All the elastomeric chains showed statistically significant reduction in force (p&lt;0.05). The American Orthodontic elastomeric chains showed higher reduction in force values, irrespective of the elastic size (p&lt;0.05). Conclusion The three commercial brands studied underwent significant reduction in the quantity of force released; the American Orthodontic brand of elastomer showed the highest value of degradation in force.
DOI: 10.6084/m9.figshare.11997807
title: Comparison of resin exotherm during direct provisional restoration

description: Abstract Introduction Polymethyl methacrylate and bis-acryl resins are materials widely used for temporary restorations, however, both have a characteristic of polymerization exotermia that should be investigated because of possible interferences in clinical success. Objective to evaluate the variation of the polymerization temperature of bis-acryl resin and a chemically activated acrylic resin in the temporary restoration by the direct method. Material and method Twenty bovine mandibular incisor teeth were divided into two groups: AR (N = 10) teeth restored with acrylic resin and BR (N = 10) teeth restored with bis-acryl resin. Measurements of thermal variations were performed using type J thermocouples, connected to an optical thermometer and analyzed by a computer equipped with specific software. The obtained data were analyzed and submitted to the analysis of means compared by Tukey test (significance of 5%). Result It was observed that there was no statistically significant difference between both experimental groups (p = 0.0739), even though AR temperature increase presented higher average (0.52ºC) than BR (0.44ºC). Conclusion There is no significant experimental difference between the heat emitted by acrylic resin and bis-acryl resin during their polymerization processes, not defining the factor that characterizes a choice of a material for temporary restorations.
DOI: 10.6084/m9.figshare.11997807.v1
title: Comparison of resin exotherm during direct provisional restoration

description: Abstract Introduction Polymethyl methacrylate and bis-acryl resins are materials widely used for temporary restorations, however, both have a characteristic of polymerization exotermia that should be investigated because of possible interferences in clinical success. Objective to evaluate the variation of the polymerization temperature of bis-acryl resin and a chemically activated acrylic resin in the temporary restoration by the direct method. Material and method Twenty bovine mandibular incisor teeth were divided into two groups: AR (N = 10) teeth restored with acrylic resin and BR (N = 10) teeth restored with bis-acryl resin. Measurements of thermal variations were performed using type J thermocouples, connected to an optical thermometer and analyzed by a computer equipped with specific software. The obtained data were analyzed and submitted to the analysis of means compared by Tukey test (significance of 5%). Result It was observed that there was no statistically significant difference between both experimental groups (p = 0.0739), even though AR temperature increase presented higher average (0.52ºC) than BR (0.44ºC). Conclusion There is no significant experimental difference between the heat emitted by acrylic resin and bis-acryl resin during their polymerization processes, not defining the factor that characterizes a choice of a material for temporary restorations.