cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7510148
title: Analysis of fluoride concentration in commercial bottled waters

description: Objective: Evaluate fluoride concentration in 500ml commercial brands of bottled water and compare it to the amount printed on the label. Methods: A descriptive, cross-sectional epidemiological study was conducted. Samples of nine different commercial brands of 500ml bottled water were collected at authorized distribution points in the city of Fortaleza, CE, Brazil, in 2013. Fluoride concentration was determined in duplicate using a fluoride ion-selective electrode. The results were obtained from linear regression of the calibration curve. Results: Fluoride concentrations ranged between 0.07 and 0.63 ppm F- or mg F/L. There were significant differences between the values printed on the labels and those found in the analysis. The fluoride concentration levels determined were not in compliance with the recommended levels by the National Health Surveillance Agency. Conclusions: The results obtained confirm the need for more careful monitoring of fluoride levels in bottled water and closer sanitary inspections.
DOI: 10.6084/m9.figshare.7510148.v1
title: Analysis of fluoride concentration in commercial bottled waters

description: Objective: Evaluate fluoride concentration in 500ml commercial brands of bottled water and compare it to the amount printed on the label. Methods: A descriptive, cross-sectional epidemiological study was conducted. Samples of nine different commercial brands of 500ml bottled water were collected at authorized distribution points in the city of Fortaleza, CE, Brazil, in 2013. Fluoride concentration was determined in duplicate using a fluoride ion-selective electrode. The results were obtained from linear regression of the calibration curve. Results: Fluoride concentrations ranged between 0.07 and 0.63 ppm F- or mg F/L. There were significant differences between the values printed on the labels and those found in the analysis. The fluoride concentration levels determined were not in compliance with the recommended levels by the National Health Surveillance Agency. Conclusions: The results obtained confirm the need for more careful monitoring of fluoride levels in bottled water and closer sanitary inspections.
DOI: 10.6084/m9.figshare.7516232
title: Treatment of severe oral mucositis in a pediatric patient undergoing chemotherapy

description: This article reports the resolution of a case of severe oral mucositis and the treatment protocol that promoted complete remission of the lesions. A male 13-year-old patient with chondroblastic osteosarcoma in the left distal thigh and acute lymphoblastic leukemia undergoing cancer treatment with methotrexate presented with severe oral mucositis. The treatment protocol included the use of 10ml of a mucositis mouthwash and low-level laser therapy. The lesions remitted after five days of gargling with the mucositis mouthwash and two sessions of low-level laser therapy on the lesions. The use of a treatment protocol consisting of a mucositis solution associated with low-level laser therapy effectively resolved a case of severe chemotherapy-induced oral mucositis. The monitoring and treatment of oral mucositis lesions in children and adolescents undergoing chemotherapy are necessary to prevent the patient from suffering from induced comorbidities.
DOI: 10.6084/m9.figshare.7508711
title: Maxillary odontogenic keratocyst: a clinical case report

description: Odontogenic keratocysts are benign lesions of the maxillomandibular region with high growth potential resulting in huge bone destruction. The presence of multiple Odontogenic keratocysts can be associated with the Gorlin-Goltz syndrome. There are two accepted theories of their origin: remnants of dental lamina and proliferation of cells from the basal layer of oral epithelium into the mandible or maxilla. Odontogenic keratocysts are usually asymptomatic and are diagnosed incidentally on routine periapical or panoramic radiographs. The type of treatment is related to their high recurrence rate. The objective of the present study is to report a clinical case of a surgical treatment of a parakeratinized odontogenic keratocyst by enucleation in a fourteen-year old girl. This technique was used since the complete removal of the cyst posed no risks of complications from a dental and/or anatomical point of view. Furthermore, it facilitated the comprehensive anatomohistopathological analysis of the lesion including its clinical, histopathological, and radiological aspects.
DOI: 10.6084/m9.figshare.7508711.v1
title: Maxillary odontogenic keratocyst: a clinical case report

description: Odontogenic keratocysts are benign lesions of the maxillomandibular region with high growth potential resulting in huge bone destruction. The presence of multiple Odontogenic keratocysts can be associated with the Gorlin-Goltz syndrome. There are two accepted theories of their origin: remnants of dental lamina and proliferation of cells from the basal layer of oral epithelium into the mandible or maxilla. Odontogenic keratocysts are usually asymptomatic and are diagnosed incidentally on routine periapical or panoramic radiographs. The type of treatment is related to their high recurrence rate. The objective of the present study is to report a clinical case of a surgical treatment of a parakeratinized odontogenic keratocyst by enucleation in a fourteen-year old girl. This technique was used since the complete removal of the cyst posed no risks of complications from a dental and/or anatomical point of view. Furthermore, it facilitated the comprehensive anatomohistopathological analysis of the lesion including its clinical, histopathological, and radiological aspects.
DOI: 10.6084/m9.figshare.7516232.v1
title: Treatment of severe oral mucositis in a pediatric patient undergoing chemotherapy

description: This article reports the resolution of a case of severe oral mucositis and the treatment protocol that promoted complete remission of the lesions. A male 13-year-old patient with chondroblastic osteosarcoma in the left distal thigh and acute lymphoblastic leukemia undergoing cancer treatment with methotrexate presented with severe oral mucositis. The treatment protocol included the use of 10ml of a mucositis mouthwash and low-level laser therapy. The lesions remitted after five days of gargling with the mucositis mouthwash and two sessions of low-level laser therapy on the lesions. The use of a treatment protocol consisting of a mucositis solution associated with low-level laser therapy effectively resolved a case of severe chemotherapy-induced oral mucositis. The monitoring and treatment of oral mucositis lesions in children and adolescents undergoing chemotherapy are necessary to prevent the patient from suffering from induced comorbidities.
DOI: 10.6084/m9.figshare.7516037
title: Effectiveness of dental records in human identification

description: Forensic dentistry, a branch of the forensic sciences, plays an important role within postmortem human identification, especially in cases of corpses that are charred, skeletonized or in an advanced state of decomposition. Identification of human remains via dental knowledge is done using a comparative technique, which is simple, inexpensive and reliable, the aim of which is to compare dental records and information recorded by dentists in clinical appointments made before an individual's death, with postmortem dental records obtained via forensic examination. In this context, the present study aims to demonstrate the importance of dental records and the effectiveness of forensic dentistry in human identification, illustrated by the report of a case that was conducted at the São Luis Coroner's Office in the Brazilian state of Maranhão. It may be concluded that dental records maintained by a dentist, when complete, properly structured and correctly archived, retain important personal information and are fundamental tools in the process of human identification.
DOI: 10.6084/m9.figshare.7508687
title: Intramuscular lipoma in the temporal region: a case report

description: Few reports of intramuscular lipoma in the temporal region are seen in the literature. Because of its invasives characteristics, this neoplasm may be mistaken as a liposarcoma. Although image exams help in the differential diagnosis between benign and malignant lipomatous lesions, the histopathological exam is the only one capable of a definitive diagnosis. Total removal of the lesion is essential because the recurrence rate without complete excision may be as high as 62.5 %. A patient with an intramuscular lipoma located in the temporal region is presented along with the mentioned treatment. Great importance should be given to these uncommon lesions that may present as a challenge to professionals that work in the maxillofacial region.
DOI: 10.6084/m9.figshare.7508687.v1
title: Intramuscular lipoma in the temporal region: a case report

description: Few reports of intramuscular lipoma in the temporal region are seen in the literature. Because of its invasives characteristics, this neoplasm may be mistaken as a liposarcoma. Although image exams help in the differential diagnosis between benign and malignant lipomatous lesions, the histopathological exam is the only one capable of a definitive diagnosis. Total removal of the lesion is essential because the recurrence rate without complete excision may be as high as 62.5 %. A patient with an intramuscular lipoma located in the temporal region is presented along with the mentioned treatment. Great importance should be given to these uncommon lesions that may present as a challenge to professionals that work in the maxillofacial region.
DOI: 10.6084/m9.figshare.7516037.v1
title: Effectiveness of dental records in human identification

description: Forensic dentistry, a branch of the forensic sciences, plays an important role within postmortem human identification, especially in cases of corpses that are charred, skeletonized or in an advanced state of decomposition. Identification of human remains via dental knowledge is done using a comparative technique, which is simple, inexpensive and reliable, the aim of which is to compare dental records and information recorded by dentists in clinical appointments made before an individual's death, with postmortem dental records obtained via forensic examination. In this context, the present study aims to demonstrate the importance of dental records and the effectiveness of forensic dentistry in human identification, illustrated by the report of a case that was conducted at the São Luis Coroner's Office in the Brazilian state of Maranhão. It may be concluded that dental records maintained by a dentist, when complete, properly structured and correctly archived, retain important personal information and are fundamental tools in the process of human identification.
DOI: 10.6084/m9.figshare.7513679
title: Descriptive study of apical periodontitis detected in Cone Beam Computed Tomography scans

description: ABSTRACT Objective: To perform a descriptive study in order to evaluate apical periodontitis in endodontically treated teeth using cone beam computed tomography. Methods: Eighty-six exams presenting at least one apical periodontitis were selected and divided into two groups: 1 for the mandible and 2 for the maxilla. All the exams were done using the same cone beam computed tomography with standard acquisition settings. All the images were processed and manipulated using the same software. Then the lesions were classified according to the periapical index, but not considering the expansion and/or destruction of cortical. Results: 127 mandibular teeth and 180 maxillary teeth exhibited apical periodontitis with an average size of 0.49 mm in the mandible and 0.75 mm in the maxilla. It was found that the lower pre-molars were the teeth most affected. Lesions identified with scores between 0 and 1 correspond to 83.47% of the lesions in the mandible and 78.89% in the maxilla, and 55.12% of endodontically treated lower teeth and 50% of upper teeth presented no lesion recurrence or lesions under repair. Conclusion: There was a predominance of small apical periodontitis, the pre-molars being the teeth most affected.
DOI: 10.6084/m9.figshare.7513679.v1
title: Descriptive study of apical periodontitis detected in Cone Beam Computed Tomography scans

description: ABSTRACT Objective: To perform a descriptive study in order to evaluate apical periodontitis in endodontically treated teeth using cone beam computed tomography. Methods: Eighty-six exams presenting at least one apical periodontitis were selected and divided into two groups: 1 for the mandible and 2 for the maxilla. All the exams were done using the same cone beam computed tomography with standard acquisition settings. All the images were processed and manipulated using the same software. Then the lesions were classified according to the periapical index, but not considering the expansion and/or destruction of cortical. Results: 127 mandibular teeth and 180 maxillary teeth exhibited apical periodontitis with an average size of 0.49 mm in the mandible and 0.75 mm in the maxilla. It was found that the lower pre-molars were the teeth most affected. Lesions identified with scores between 0 and 1 correspond to 83.47% of the lesions in the mandible and 78.89% in the maxilla, and 55.12% of endodontically treated lower teeth and 50% of upper teeth presented no lesion recurrence or lesions under repair. Conclusion: There was a predominance of small apical periodontitis, the pre-molars being the teeth most affected.
DOI: 10.6084/m9.figshare.7513682
title: Retrospective study on the angle of the upper permanent second molars in schoolchildren with normal occlusion

description: ABSTRACT Objective: The aims of this study were to evaluate the angle of permanent second molars in schoolchildren with a normal occlusion, using panoramic radiographs and plaster models, and to evaluate the correlation between measurements obtained by these two methods. Methods: Thirty Brazilian schoolchildren with a mean age of 14 years and 7 months were selected. These individuals had not previously undergone orthodontic interventions, required a minimum of four of Andrews' six keys of occlusion, with the first key (interarch relation) being mandatory, and significant facial asymmetry was absent. Angulation of the maxillary second molars was measured using panoramic radiographs and plaster models. Results: The mean angulation, according to panoramic radiography, was 105.8º in the distal direction (standard deviation of 5.1º). The plaster models revealed a mean angulation of -5.8º, indicating a distal angulation of the crown. Pearsons' correlation test demonstrated a negative and weak relationship (p = 0.009; r2 = - 0.474), with a greater angle in the panoramic radiographs and a smaller angle in plaster models. This was considered an inverse proportional relationship. Conclusion: Measurements of the panoramic radiographs showed an angulation of 105.8º in the distal direction, while the plaster models revealed an angulation of -5.8º. Therefore, one should consider these angulations in order to personalize the placement of accessories on the upper permanent second molars. Correlation of this angulation using these two methods was negative; however, due to the weak correlation, both methods are needed when evaluating the angle of the upper second molar.
DOI: 10.6084/m9.figshare.7513682.v1
title: Retrospective study on the angle of the upper permanent second molars in schoolchildren with normal occlusion

description: ABSTRACT Objective: The aims of this study were to evaluate the angle of permanent second molars in schoolchildren with a normal occlusion, using panoramic radiographs and plaster models, and to evaluate the correlation between measurements obtained by these two methods. Methods: Thirty Brazilian schoolchildren with a mean age of 14 years and 7 months were selected. These individuals had not previously undergone orthodontic interventions, required a minimum of four of Andrews' six keys of occlusion, with the first key (interarch relation) being mandatory, and significant facial asymmetry was absent. Angulation of the maxillary second molars was measured using panoramic radiographs and plaster models. Results: The mean angulation, according to panoramic radiography, was 105.8º in the distal direction (standard deviation of 5.1º). The plaster models revealed a mean angulation of -5.8º, indicating a distal angulation of the crown. Pearsons' correlation test demonstrated a negative and weak relationship (p = 0.009; r2 = - 0.474), with a greater angle in the panoramic radiographs and a smaller angle in plaster models. This was considered an inverse proportional relationship. Conclusion: Measurements of the panoramic radiographs showed an angulation of 105.8º in the distal direction, while the plaster models revealed an angulation of -5.8º. Therefore, one should consider these angulations in order to personalize the placement of accessories on the upper permanent second molars. Correlation of this angulation using these two methods was negative; however, due to the weak correlation, both methods are needed when evaluating the angle of the upper second molar.
DOI: 10.6084/m9.figshare.7513103
title: Effects of fluoride and Aloe vera tooh gel in artificial white spot lesions in vitro

description: ABSTRACT Objective: The aim of this study was to evaluate the effects of toothbrushing using a fluoride toothpaste and Aloe vera tooth gel on artificial white spot lesions through the Knoop microhardness (KHN) analysis. Methods: Sound bovine enamel samples (2 mm/diameter and 2 mm/depth) were prepared and immersed in artificial white spot lesion for 24 h. The preparation of artificial white spot lesions was performed by pH-cycling process. The samples were randomly divided into two groups (n=20), according the dentifrice used: containing fluoride (Colgate Total 12) or Aloe vera (Forever Bright Aloe Vera Toothgel). The top surface of samples was submitted to 10,000, 25,000, 50,000 and 100,000 brushing cycles (200 g load) in an automatic brushing machine with abrasive slurry. The KHN analysis were evaluated at baseline, after immersion in artificial white spot lesion and after 10,000, 25,000, 50,000 and 100,000 cycles of brushing. Data were analyzed by two-way repeated measures ANOVA and Tukey tests (p=0.05). Results: The KHN values significantly increased after brushing cycles compared to demineralized means. No significant differences showed for dentifrice factor (p=0.263). However, there were statistically significant differences between groups in cycles of brushing times (p=0.0001). Conclusion: The toothpastes (containing fluoride or Aloe vera) were effective in increasing the superficial microhardness of artificial white spot lesions.
DOI: 10.6084/m9.figshare.7513103.v1
title: Effects of fluoride and Aloe vera tooh gel in artificial white spot lesions in vitro

description: ABSTRACT Objective: The aim of this study was to evaluate the effects of toothbrushing using a fluoride toothpaste and Aloe vera tooth gel on artificial white spot lesions through the Knoop microhardness (KHN) analysis. Methods: Sound bovine enamel samples (2 mm/diameter and 2 mm/depth) were prepared and immersed in artificial white spot lesion for 24 h. The preparation of artificial white spot lesions was performed by pH-cycling process. The samples were randomly divided into two groups (n=20), according the dentifrice used: containing fluoride (Colgate Total 12) or Aloe vera (Forever Bright Aloe Vera Toothgel). The top surface of samples was submitted to 10,000, 25,000, 50,000 and 100,000 brushing cycles (200 g load) in an automatic brushing machine with abrasive slurry. The KHN analysis were evaluated at baseline, after immersion in artificial white spot lesion and after 10,000, 25,000, 50,000 and 100,000 cycles of brushing. Data were analyzed by two-way repeated measures ANOVA and Tukey tests (p=0.05). Results: The KHN values significantly increased after brushing cycles compared to demineralized means. No significant differences showed for dentifrice factor (p=0.263). However, there were statistically significant differences between groups in cycles of brushing times (p=0.0001). Conclusion: The toothpastes (containing fluoride or Aloe vera) were effective in increasing the superficial microhardness of artificial white spot lesions.
DOI: 10.6084/m9.figshare.7513094
title: Surface roughness of a resin composite

description: ABSTRACT Objective: The aim of the present study was to evaluate the surface roughness (Ra) of the Z-350 resin composite following immersion in different media (distilled water, coca-cola, coffee, black tea and red wine). Methods: Fifty specimens of resin composite measuring 10 mm x 2 mm were prepared. Polymerization was performed using the conventional method (40 s). Each specimen was immersed for one hour per day. Evaluations were performed at baseline as well as after three, six, nine and 12 months. Three Ra readings were taken in opposite directions at each evaluation using a roughness meter. Mean Ra values were subjected to analysis of variance (ANOVA) followed by Tukey's test (p &lt; 0.05). Results: A significant increase in Ra was found in the specimens submitted to coffee, coca-cola(r) and black tea between baseline and the three-month evaluation. Variance was also found among the remaining evaluation times (3 months to 12 months), but the differences did not achieve statistical significance. No statistically significant differences in Ra were found among evaluation times in the specimens submitted to red wine or distilled water. Conclusion: Based on the present findings, coca-cola, coffee and black tea exert an influence on the surface roughness of resin composites.
DOI: 10.6084/m9.figshare.7513094.v1
title: Surface roughness of a resin composite

description: ABSTRACT Objective: The aim of the present study was to evaluate the surface roughness (Ra) of the Z-350 resin composite following immersion in different media (distilled water, coca-cola, coffee, black tea and red wine). Methods: Fifty specimens of resin composite measuring 10 mm x 2 mm were prepared. Polymerization was performed using the conventional method (40 s). Each specimen was immersed for one hour per day. Evaluations were performed at baseline as well as after three, six, nine and 12 months. Three Ra readings were taken in opposite directions at each evaluation using a roughness meter. Mean Ra values were subjected to analysis of variance (ANOVA) followed by Tukey's test (p &lt; 0.05). Results: A significant increase in Ra was found in the specimens submitted to coffee, coca-cola(r) and black tea between baseline and the three-month evaluation. Variance was also found among the remaining evaluation times (3 months to 12 months), but the differences did not achieve statistical significance. No statistically significant differences in Ra were found among evaluation times in the specimens submitted to red wine or distilled water. Conclusion: Based on the present findings, coca-cola, coffee and black tea exert an influence on the surface roughness of resin composites.
DOI: 10.6084/m9.figshare.7519205
title: Inverted mesiodens: case report

description: ABSTRACT Mesiodens is the term used for describing the supernumerary tooth that occurs in the maxilla, between the central incisors, in the midline region. These may erupt in the oral cavity or keep themselves impacted. Their presence causes cleaning inadequate, impossibility or difficult of the eruption of the regular teeth and having the aesthetic compromised. This paper aims at showing that early identification of supernumerary teeth, planning and correct approach, allow the preservation of the teeth and adjacent structures. This article presents the clinical case of a seven-year-old child, male, who sought for treatment complaining that teeth 11 didn't appear in the buccal cavity. Clinical and radiographic exams were done and they demonstrated the presence of the supernumerary tooth. The plan of treatment aimed at the correct localization, extraction of this supernumerary tooth and continuous follow up of the case.