cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7515587.v1
title: Radiographic examination of patient's initial care in a Brazilian Dental School

description: INTRODUCTION: For X-rays offer more benefits than risks, they need to be performed or ordered according to each clinical situation.OBJECTIVE: To evaluate the radiographic exams requested in the initial care in a dental school, considering signs/symptoms and the reported reasons for seeking care.MATERIAL AND METHOD: We evaluated the medical records of 3100 adult patients treated over a period of three years, and eliminated those who had not performed radiographic examinations in the initial care. In a final sample of 1567 records, was collected: age and gender, reason for seeking care, presence of signs and/or symptoms, beyond technique and the number of radiographs requested. The dates were analysed by descriptive statistics.RESULT: 5034 radiographs were made, mean of 3.24 (±2.97) per patient. Among the techniques, the most widely used was the periapical, followed by panoramic. Tooth extraction and pain were the most prevalent reasons for seeking care, while pain, periodontal disease and the presence of soft tissue pathologies were the signs/symptoms more common. 35.41% of the sample had no signs or symptoms.CONCLUSION: There is a wide variation in the request of radiographs for initial care showing a lack of application of criteria in the selection diagnostic imaging, which can lead to unnecessary exposure to radiation X.
DOI: 10.6084/m9.figshare.7518221
title: Profile and perceptions of diabetic about the relationship between diabetes and periodontal disease

description: INTRODUCTION: Periodontitis is considered one of the major health problems in patients with diabetes, and its presence may induce insulin resistance.OBJECTIVE: To evaluate the profile and perception of patients with diabetes about the bidirectional relationship between diabetes and periodontal disease, as well as to evaluate the comprehensiveness of the primary health care toward these patients.METHOD: This was a cross-sectional epidemiological study applying a structured questionnaire to 154 users registered in the HIPERDIA program in Family Health Units (FHU). The data were recorded in SPSS and analyzed using descriptive and inferential statistics, with a significance level of 5%.RESULT: Most patients were females (71.1%), had low income (73.2%) and poor education (42.5%), were non smokers (87.6%), had more than 12 missing teeth (73.2%), brushed their teeth twice daily (54.9%) and did not use dental floss (79.1%). A statistically significant association was found between gender and number of brushings (p&lt;0.001).CONCLUSION: Patients with diabetes have a high prevalence of missing teeth, lack of information about oral hygiene care and relationship between periodontal disease and diabetes, which highlights the need for greater integration between the dentist and the medical staff.
DOI: 10.6084/m9.figshare.7518221.v1
title: Profile and perceptions of diabetic about the relationship between diabetes and periodontal disease

description: INTRODUCTION: Periodontitis is considered one of the major health problems in patients with diabetes, and its presence may induce insulin resistance.OBJECTIVE: To evaluate the profile and perception of patients with diabetes about the bidirectional relationship between diabetes and periodontal disease, as well as to evaluate the comprehensiveness of the primary health care toward these patients.METHOD: This was a cross-sectional epidemiological study applying a structured questionnaire to 154 users registered in the HIPERDIA program in Family Health Units (FHU). The data were recorded in SPSS and analyzed using descriptive and inferential statistics, with a significance level of 5%.RESULT: Most patients were females (71.1%), had low income (73.2%) and poor education (42.5%), were non smokers (87.6%), had more than 12 missing teeth (73.2%), brushed their teeth twice daily (54.9%) and did not use dental floss (79.1%). A statistically significant association was found between gender and number of brushings (p&lt;0.001).CONCLUSION: Patients with diabetes have a high prevalence of missing teeth, lack of information about oral hygiene care and relationship between periodontal disease and diabetes, which highlights the need for greater integration between the dentist and the medical staff.
DOI: 10.6084/m9.figshare.7512206
title: Assessment of the effects of ropivacaine on vascular reactivity in rat mesenteric artery

description: INTRODUCTION: Ropivacaine (ROPI) is a local anesthetic of long duration of action, more recently introduced in medicine, however is not available for dental use in tubes yet. Clinical and animal studies have confirmed that bupivacaine is an effective anesthetic that also has an intrinsic vasoconstrictor effect.OBJECTIVE: To evaluate the effects of ropivacaine on vascular reactivity in isolated rat mesenteric artery, compare this to the effect of lidocaine (LIDO) and evaluate the possible involvement of the vascular endothelium induced by ROPI in isolated rat mesenteric artery ring response.MATERIAL AND METHOD: It was used 12 male Wistar rats (250-300g). The animals were euthanized and through an incision in the abdomen of the animal, the mesenteric artery was removed. Artery rings (1-2 mm) were obtained by the mesenteric artery, which were kept in vats containing 10 ml of Tyrode's nutrient solution kept at 37 °C and gassed with carbogen. For the recording of isometric contractions, each ring was suspended by cotton lines to a force transducer connected to a data acquisition system.RESULT: Both the LIDO as ROPI showed no vasoconstrictor effect on the basal tone of rings with functional endothelium. However, when the rings were precontracted with phenylephrine, both drugs were able to induce concentration-dependent vasorelaxation (Emax = 31.7 ± 3.3%, n = 6 for LIDO and 69 ± 8%, n = 6 for ROPI) that were not altered after removal of the endothelium (Emax= 28.7 ± 1.3%, n = 7 for LIDO and Emax = 58.8 ± 5.9%, n = 6 for ROPI). In rings without functional endothelium and precontracted with depolarizing Tyrode solution (80 mM KCl), the LIDO-induced vasorelaxation was no significantly changed (Emax = 29 ± 3%, n = 7). However, ROPI-induced vasorelaxation was reduced in this protocol and the presence of 1 mM tetraethylammonium (TEA) (Emax = 21.2 ± 5.1%, n = 7 and Emax = 17.4 ± 3.7, n = 4, respectively).CONCLUSION: ROPI produces vasorelaxant effect in rat superior mesenteric artery, which is independent of the participation of the endothelium. This effect seems to involve K+ channels in vascular smooth muscle cell.
DOI: 10.6084/m9.figshare.7512206.v1
title: Assessment of the effects of ropivacaine on vascular reactivity in rat mesenteric artery

description: INTRODUCTION: Ropivacaine (ROPI) is a local anesthetic of long duration of action, more recently introduced in medicine, however is not available for dental use in tubes yet. Clinical and animal studies have confirmed that bupivacaine is an effective anesthetic that also has an intrinsic vasoconstrictor effect.OBJECTIVE: To evaluate the effects of ropivacaine on vascular reactivity in isolated rat mesenteric artery, compare this to the effect of lidocaine (LIDO) and evaluate the possible involvement of the vascular endothelium induced by ROPI in isolated rat mesenteric artery ring response.MATERIAL AND METHOD: It was used 12 male Wistar rats (250-300g). The animals were euthanized and through an incision in the abdomen of the animal, the mesenteric artery was removed. Artery rings (1-2 mm) were obtained by the mesenteric artery, which were kept in vats containing 10 ml of Tyrode's nutrient solution kept at 37 °C and gassed with carbogen. For the recording of isometric contractions, each ring was suspended by cotton lines to a force transducer connected to a data acquisition system.RESULT: Both the LIDO as ROPI showed no vasoconstrictor effect on the basal tone of rings with functional endothelium. However, when the rings were precontracted with phenylephrine, both drugs were able to induce concentration-dependent vasorelaxation (Emax = 31.7 ± 3.3%, n = 6 for LIDO and 69 ± 8%, n = 6 for ROPI) that were not altered after removal of the endothelium (Emax= 28.7 ± 1.3%, n = 7 for LIDO and Emax = 58.8 ± 5.9%, n = 6 for ROPI). In rings without functional endothelium and precontracted with depolarizing Tyrode solution (80 mM KCl), the LIDO-induced vasorelaxation was no significantly changed (Emax = 29 ± 3%, n = 7). However, ROPI-induced vasorelaxation was reduced in this protocol and the presence of 1 mM tetraethylammonium (TEA) (Emax = 21.2 ± 5.1%, n = 7 and Emax = 17.4 ± 3.7, n = 4, respectively).CONCLUSION: ROPI produces vasorelaxant effect in rat superior mesenteric artery, which is independent of the participation of the endothelium. This effect seems to involve K+ channels in vascular smooth muscle cell.
DOI: 10.6084/m9.figshare.7509713.v1
title: Pre-hypertension, hypertension and associated factors in dental patients: a cross-sectional study in Santa Maria-RS, Brazil

description: INTRODUCTION: Hypertension is one of the most important risk factors for cardiovascular diseases and one of the most prevalent chronic diseases in Brazil and in the world population.OBJECTIVE: Assess the prevalence of hypertension and prehypertension, associated factors and adherence to antihypertensive therapy in a sample of dental patients of a private dentistry school in the state of Rio Grande do Sul, Brazil.MATERIAL AND METHOD: The participants of this study were 250 patients of both genders, aged over 18 years. Demographic data, history of hypertension and other systemic diseases, information about the use of antihypertensive drugs and smoking were obtained, and anthropometric measurements were performed. Adherence to treatment was evaluated by Morisky-Green test. Three blood pressure measurements were made by a dentist, and the average of the last two measurements was used in this analysis.RESULT: The mean age of patients was 46.6 (±13.8) years. Thirty percent had prehypertension and 36% had hypertension. Of these hypertensive patients, 28.9% were unaware of their hypertensive condition. Hypertension was statistically associated with increasing age (p&lt;0.001) and diabetes (p=0.009). Among patients on antihypertensive treatment, 58.1% were non-adherent, whilst 41.9% had no controlled blood pressure.CONCLUSION: In the present study we observed a high prevalence of prehypertension and undiagnosed hypertension, as well as high rate of uncontrolled disease. These results point to the importance of blood pressure measurements during dental visits.
DOI: 10.6084/m9.figshare.7509713
title: Pre-hypertension, hypertension and associated factors in dental patients: a cross-sectional study in Santa Maria-RS, Brazil

description: INTRODUCTION: Hypertension is one of the most important risk factors for cardiovascular diseases and one of the most prevalent chronic diseases in Brazil and in the world population.OBJECTIVE: Assess the prevalence of hypertension and prehypertension, associated factors and adherence to antihypertensive therapy in a sample of dental patients of a private dentistry school in the state of Rio Grande do Sul, Brazil.MATERIAL AND METHOD: The participants of this study were 250 patients of both genders, aged over 18 years. Demographic data, history of hypertension and other systemic diseases, information about the use of antihypertensive drugs and smoking were obtained, and anthropometric measurements were performed. Adherence to treatment was evaluated by Morisky-Green test. Three blood pressure measurements were made by a dentist, and the average of the last two measurements was used in this analysis.RESULT: The mean age of patients was 46.6 (±13.8) years. Thirty percent had prehypertension and 36% had hypertension. Of these hypertensive patients, 28.9% were unaware of their hypertensive condition. Hypertension was statistically associated with increasing age (p&lt;0.001) and diabetes (p=0.009). Among patients on antihypertensive treatment, 58.1% were non-adherent, whilst 41.9% had no controlled blood pressure.CONCLUSION: In the present study we observed a high prevalence of prehypertension and undiagnosed hypertension, as well as high rate of uncontrolled disease. These results point to the importance of blood pressure measurements during dental visits.
DOI: 10.6084/m9.figshare.7508561
title: Impact of dental fluorosis on the quality of life of children and adolescents

description: INTRODUCTION: Dental fluorosis is a disturbance of high prevalence caused by the ingestion of fluoride ions present mainly in toothpaste. Preventive measures to avoid it are still controversial. Thus, knowing the impact that fluorosis can cause on the population's quality of life it is important for planning public health policies.OBJECTIVE: To evaluate the impact of dental fluorosis on the quality of life of children and adolescents.MATERIAL AND METHOD: We studied 300 subjects aged 8 to 12 years divided into 4 groups: children (8-10 years) and adolescents (10 to 12 years) with and without fluorosis. The diagnosis of fluorosis was performed according to the index Thylstrup and Fejerskov and quality of life was evaluated using Child Perceptions Questionnaire 8-10 and 11-14. The socio-demographic characteristics of the patients were also evaluated. For inclusion in the sample, selected patients should present eight permanent incisors with crowns fully erupted. Patients who had extensive restorations, fractured teeth, other dental enamel defects and who wore braces were excluded.RESULT: Fluorosis was present in 64.7% of the patients analyzed and in most cases (80.3%) was mild or very mild. In children, the average overall score of the questionnaire was 15.9 for the group without fluorosis and 18.3 for the group with fluorosis (p = 0.255). The teenagers' score in the group without fluorosis was 26.1, while the group with fluorosis was 22.7 (p = 0.104).CONCLUSION: Dental fluorosis caused impact on the quality of life of the population analyzed only in the functional domain.
DOI: 10.6084/m9.figshare.7508561.v1
title: Impact of dental fluorosis on the quality of life of children and adolescents

description: INTRODUCTION: Dental fluorosis is a disturbance of high prevalence caused by the ingestion of fluoride ions present mainly in toothpaste. Preventive measures to avoid it are still controversial. Thus, knowing the impact that fluorosis can cause on the population's quality of life it is important for planning public health policies.OBJECTIVE: To evaluate the impact of dental fluorosis on the quality of life of children and adolescents.MATERIAL AND METHOD: We studied 300 subjects aged 8 to 12 years divided into 4 groups: children (8-10 years) and adolescents (10 to 12 years) with and without fluorosis. The diagnosis of fluorosis was performed according to the index Thylstrup and Fejerskov and quality of life was evaluated using Child Perceptions Questionnaire 8-10 and 11-14. The socio-demographic characteristics of the patients were also evaluated. For inclusion in the sample, selected patients should present eight permanent incisors with crowns fully erupted. Patients who had extensive restorations, fractured teeth, other dental enamel defects and who wore braces were excluded.RESULT: Fluorosis was present in 64.7% of the patients analyzed and in most cases (80.3%) was mild or very mild. In children, the average overall score of the questionnaire was 15.9 for the group without fluorosis and 18.3 for the group with fluorosis (p = 0.255). The teenagers' score in the group without fluorosis was 26.1, while the group with fluorosis was 22.7 (p = 0.104).CONCLUSION: Dental fluorosis caused impact on the quality of life of the population analyzed only in the functional domain.
DOI: 10.6084/m9.figshare.7508699
title: Effect of laser therapy on the inflammatory response induced by endodontic medications implanted into the subcutaneous tissue of rats

description: INTRODUCTION: Endodontic medications contain toxic components that cause varying degrees of inflammation.OBJECTIVE: This study evaluated the effect of laser therapy on the inflammatory response induced by intracanal medications implanted into the subcutaneous tissue of rats using a quantitative analysis of mast cells.MATERIAL AND METHOD: Polyethylene tubes containing the medications were implanted in the dorsum of 60 rats divided into six groups, including HS (P.A. calcium hydroxide paste), HL (P.A. calcium hydroxide paste and laser therapy), HPS (P.A. calcium hydroxide paste with camphorated paramonochlorophenol), HPL (P.A. calcium hydroxide paste with camphorated paramonochlorophenol and laser therapy), IS (iodoform with saline) and IL (iodoform with saline and laser therapy). The animals were euthanized eight or fifteen days after surgery, and samples were removed and embedded in paraffin. Histological sections were stained with 0.2% toluidine blue for the quantification of mast cells. Analysis of variance (ANOVA) and Tukey's post-hoc test were applied to determine significant differences in the number of mast cells between groups (p&lt;0.05).RESULT: There was a decrease in mast cells for the HL, HPL and IL groups when compared with the HS, HPS and IS groups at both time points. There was no statistically significant difference between the HPS and HPL groups at the eight-day time point.CONCLUSION: Laser therapy was effective at modulating the inflammatory response induced by endodontic medications by significantly reducing the number of mast cells.
DOI: 10.6084/m9.figshare.7508699.v1
title: Effect of laser therapy on the inflammatory response induced by endodontic medications implanted into the subcutaneous tissue of rats

description: INTRODUCTION: Endodontic medications contain toxic components that cause varying degrees of inflammation.OBJECTIVE: This study evaluated the effect of laser therapy on the inflammatory response induced by intracanal medications implanted into the subcutaneous tissue of rats using a quantitative analysis of mast cells.MATERIAL AND METHOD: Polyethylene tubes containing the medications were implanted in the dorsum of 60 rats divided into six groups, including HS (P.A. calcium hydroxide paste), HL (P.A. calcium hydroxide paste and laser therapy), HPS (P.A. calcium hydroxide paste with camphorated paramonochlorophenol), HPL (P.A. calcium hydroxide paste with camphorated paramonochlorophenol and laser therapy), IS (iodoform with saline) and IL (iodoform with saline and laser therapy). The animals were euthanized eight or fifteen days after surgery, and samples were removed and embedded in paraffin. Histological sections were stained with 0.2% toluidine blue for the quantification of mast cells. Analysis of variance (ANOVA) and Tukey's post-hoc test were applied to determine significant differences in the number of mast cells between groups (p&lt;0.05).RESULT: There was a decrease in mast cells for the HL, HPL and IL groups when compared with the HS, HPS and IS groups at both time points. There was no statistically significant difference between the HPS and HPL groups at the eight-day time point.CONCLUSION: Laser therapy was effective at modulating the inflammatory response induced by endodontic medications by significantly reducing the number of mast cells.
DOI: 10.6084/m9.figshare.7517147
title: Signs of Combination Syndrome and removable partial denture wearing

description: Introduction:Combination Syndrome (CS) is a pathological condition observed in maxillary complete denture (CD) and mandibular removable partial denture (RPD) wearers.Purpose:The aim of this study was to observe and measure the prevalence of CS signs in treatment-seeking wearers of maxillary CD associated or not with RPD (mandibular Kennedy Class I). The association between RPD wearing and the number of CS clinical signs was also evaluated.Material and method:The sample included 62 patients seen at the Department of Dentistry, Federal University of Rio Grande do Norte (UFRN). A clinical oral examination was conducted to assess the presence of specific clinical signs of CS as described by Kelly (1972): bone resorption in the maxillary anterior region, tuberosity overgrowth, palatal papillary hyperplasia, extrusion of mandibular anterior teeth and bone resorption in the mandibular posterior region. The chi-square test at the 95% level of significance was used to test the association between dependent and independent variables.Result:Mandibular resorption was the most frequent complication (93.5%). There was a statistically significant difference between RPD wearers and non-wearers with regard to extrusion of mandibular anterior teeth (p = 0.045).Conclusion:Within the limitations of the present study, a high prevalence of CS clinical signs was observed, but no association between RPD wearing and syndrome characteristics was found.
DOI: 10.6084/m9.figshare.7517147.v1
title: Signs of Combination Syndrome and removable partial denture wearing

description: Introduction:Combination Syndrome (CS) is a pathological condition observed in maxillary complete denture (CD) and mandibular removable partial denture (RPD) wearers.Purpose:The aim of this study was to observe and measure the prevalence of CS signs in treatment-seeking wearers of maxillary CD associated or not with RPD (mandibular Kennedy Class I). The association between RPD wearing and the number of CS clinical signs was also evaluated.Material and method:The sample included 62 patients seen at the Department of Dentistry, Federal University of Rio Grande do Norte (UFRN). A clinical oral examination was conducted to assess the presence of specific clinical signs of CS as described by Kelly (1972): bone resorption in the maxillary anterior region, tuberosity overgrowth, palatal papillary hyperplasia, extrusion of mandibular anterior teeth and bone resorption in the mandibular posterior region. The chi-square test at the 95% level of significance was used to test the association between dependent and independent variables.Result:Mandibular resorption was the most frequent complication (93.5%). There was a statistically significant difference between RPD wearers and non-wearers with regard to extrusion of mandibular anterior teeth (p = 0.045).Conclusion:Within the limitations of the present study, a high prevalence of CS clinical signs was observed, but no association between RPD wearing and syndrome characteristics was found.
DOI: 10.6084/m9.figshare.7515629
title: Comparative study of micro deformations resulting from axial and non-axial static loads under three prosthetic implant elements

description: INTRODUCTION: The control of the micro strain surrounding implants is a factor that can lead to a better osseointegration and maintenance of bone structures.OBJECTIVE: evaluate in vitro, using strain gauge analysis , the influence of the axial and non-axial static load in implant-supported fixed partial dentures, varying the point of load application.MATERIAL AND METHOD: In a block of polyurethane three internal hexagonal implants were installed, on implants abutments microunit were connected with torque of 20 Ncm, and plastic prosthetic cylinders were screwed on to the abutments, which received standard patterns cast in Co-Cr alloy (n=10). Four strain gauges were bonded on the surface of the block tangentially to the three implants. Each metallic structure was screwed onto the microunit with a 10 Ncm torque. With a load application device (DAC) static vertical loads of 30kgf were applied for ten seconds at five predetermined points (A, B, C, D and E).RESULT: Result analyzed by RM ANOVA, in which the effect of the point of load application and differents specimens were not statistically significant, whereas regarding the points of load application presented statistical differenced (p=0.0001). Applying Tukey's multiple comparison tests.CONCLUSION: The application of load on the non-axial points D and E produced an increase in the magnitude of micro strain around implants.