Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 3.059
Filtrar
1.
Pediatr Dent ; 42(1): 36-40, 2020 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-32075709

RESUMO

Purpose: The prevalence of molar incisor hypomineralization in the United States is unknown. The condition is defined via the presence of demarcated opacities of varying color, porous enamel, advanced susceptibility or progression of dental caries, and sensitivity. The purpose of this study was to establish the prevalence of molar incisor hypomineralization (MIH) in Pittsburgh, Pa., USA. Methods: A total of 104 patients (64 females and 40 males ranging in age from seven to 32 years) from the University of Pittsburgh were screened for the clinical signs of MIH between May 15 and July 31, 2019. MIH was defined according to international guidelines. Results: A total of 9.6 percent of patients screened presented with the clinical signs of MIH; 15.4 percent of patients screened presented with clinical signs aligning with dental fluorosis. Conclusions: Molar incisor hypomineralization is prevalent and clinically relevant in Pittsburgh. American clinicians should start recording the diagnoses of MIH to facilitate establishing national prevalence data and increase knowledge and treatment.


Assuntos
Cárie Dentária , Hipoplasia do Esmalte Dentário , Fluorose Dentária , Feminino , Humanos , Incisivo , Masculino , Dente Molar , Pennsylvania , Prevalência
2.
Zhonghua Bing Li Xue Za Zhi ; 49(2): 168-173, 2020 Feb 08.
Artigo em Chinês | MEDLINE | ID: mdl-32074731

RESUMO

Objective: To investigate the change and association of glioma-associated oncogene homolog 1 (Gli1) and ß-catenin on bone formation in rats with chronic fluorosis which were inhibited by cyclopamine (Cycl). Methods: Forty-eight Sprague-Dawley rats were evenly divided to four groups, including control, F, F+Cycl and F+DMSO groups. The control group were fed with tap water (NaF<1 ppm). The F, F+Cycl and F+DMSO groups were exposed to NaF (50 ppm) in drinking water as the chronic fluorosis model. Then the rats in F+Cycl or F+DMSO groups were injected by Cycl or DMSO after 6 months, respectively. Urine fluoride concentration was detected using fluorine ion selective electrode. The enzyme-linked immunosorbent assay (ELISA) was used to detect bone alkaline phosphatase (BALP). Bone tissues were stained with hematoxylin-eosin. The mRNA and protein expression of Gli1 and ß-catenin in bone tissue were detected using real-time PCR, immunohistochemistry and Western blot. Results: Compared with the controls, the urine fluoride concentration and the width and volume of bone trabeculae were increased in the F, F+Cycl and F+DMSO groups, but no statistical difference among the 3 fluorosis groups. The concentration of BALP was increased in the F group and decreased in F+Cycl group (P<0.05). The expression of Gli1 and ß-catenin mRNA and protein was higher in the F and F+Cycl groups than controls, but lower in the F+Cycl group than in the F group. There was positive correlation between the expression of Gli1 and ß-catenin (r=0.476, P<0.05). The expression of Gli1 and ß-catenin was also associated with BALP concentration and volume of bone trabeculae, respectively (r(1)=0.457, r(2)=0.466, r(3)=0.581, r(4)=0.554, respectively, P<0.05 for all). Conclusions: The expression of Gli1 can be inhibited by Cycl. It may be involved in the bone formation of rats with chronic fluorosis. It may also affect the expression of ß-catenin, which is an osteogenesis factor.


Assuntos
Fluorose Dentária , Osteogênese , Animais , Doença Crônica , Fluoretos , Ratos , Ratos Sprague-Dawley , Proteína GLI1 em Dedos de Zinco , beta Catenina
3.
Chemosphere ; 243: 125451, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31995892

RESUMO

Excessive and inadequate intake of fluoride may cause adverse effects in children, such as dental caries and dental fluorosis. This study reports the results of monitoring fluoride concentrations in drinking water from an endemic fluorosis region during the ten-year period (2008 through 2017). The fluoride concentration had a range of 0.03-9.42 mg L-1 (mean = 0.55 ± 0.01 mg L-1). Approximately 10%, 1.3% and 0.06% children are at risk for dental decay, dental fluorosis and skeletal fluorosis, respectively. Probabilistic risks for children were assessed and the fluoride endemic areas were marked by GIS mapping system. On several water consumption points, the hazard quotient (HQ) values for children were higher than 1, indicating potential non-cancer health risks due to fluoride exposure. The results of this study will help governmental agencies to develop better policies for protecting children from exposure to fluoride.


Assuntos
Água Potável/normas , Fluoretos/farmacologia , Fluorose Dentária/etiologia , Abastecimento de Água/normas , Criança , China/epidemiologia , Cárie Dentária/prevenção & controle , Água Potável/efeitos adversos , Fluoretos/análise , Fluorose Dentária/epidemiologia , Humanos , Minerais , Prevalência
4.
Oper Dent ; 45(1): 1-9, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31567053

RESUMO

OBJECTIVE: To manage three cases of mild to moderate fluorosis by resin infiltration technique and to quantify the tooth color changes by measuring CIE L*a*b* values of digital photographs and calculating ΔE00 based on the CIEDE2000 formula using Adobe Photoshop software. METHODS AND MATERIALS: Three cases of mild to moderate fluorosis were treated with a combination of bleaching and a resin infiltration technique. CIE L*a*b* values of 18 fluorosed spots were measured from digital photographs of these cases at four different stages-preoperative, postbleaching, postinfiltration and at 12-month follow-up-using Adobe Photoshop software, and ΔE00 was calculated based on the CIEDE2000 formula. The ΔE00 values of all 18 points obtained at different stages were submitted to statistical analysis (α=0.05). RESULTS: In all the cases reported, clinically as well as by the photographic color analysis, it was found that the technique masked the lesions, improving the patients' esthetics, which was maintained even at 12-month recall. Statistically significant difference in ΔE00 values was present between comparison of all stages (p<0.001) except between postinfiltration and the 12-month follow-up stage (p=0.642). CONCLUSION: A resin infiltration technique helped in the satisfactory management of white spot lesions of fluorosis, which were stable even at 12-month follow up. Quantitation of the changes was achieved using Adobe Photoshop software.


Assuntos
Fluorose Dentária , Cor , Seguimentos , Humanos , Fotografação
5.
Oper Dent ; 45(1): 10-18, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31373889

RESUMO

Pronounced white color alterations due to structural anomalies of the enamel are often insufficiently masked by bleaching techniques or resin infiltration procedures alone. This frequently leads to the choice of more invasive prosthetic restorations in order to correct tooth color and form. This article describes a minimally invasive treatment option for esthetic and functional rehabilitation in the case of a 13-year-old female patient with suspected severe fluorosis and misalignment of the anterior teeth. The restorations were performed using underlying resin infiltration to homogenize the tooth shade. In a second step, direct composite veneers were applied on top to attain a natural tooth color and adjust tooth alignment and form. By joining the two minimally and noninvasive techniques, this treatment option combines the directive for preservation of hard tooth structure while treating adolescents with the benefits of easy adaptation and repair when the occlusion is still in adjustment.


Assuntos
Fluorose Dentária , Clareamento Dental , Adolescente , Cor , Resinas Compostas , Esmalte Dentário , Facetas Dentárias , Estética Dentária , Feminino , Seguimentos , Humanos
6.
Acta Odontol Scand ; 78(1): 26-30, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31329013

RESUMO

Objective: This study investigates the association between the prevalence and severity of dental fluorosis, the socio-economic status (SES) and area of residence among 12-year-old schoolchildren in Uruguay.Material and methods: The study was descriptive, cross-sectional, explanatory and observational. Subjects considered eligible were born in 1999 and had their parents' or guardian's prior consent. A questionnaire was used to identify SES according to Centro de Investigaciones Económicas Institute on four levels. Dental fluorosis was determined using the Thylstrup-Fejerskov (TF) index.Results: Of the 1544 students examined, 45.0% showed dental fluorosis. A TF index 1-2 was recorded in 29.3% of the subjects, TF 3 in 20.9%, TF 4 in 6.7% and TF 5-9 in 2.1%. In area 1 (the capital Montevideo city), 84.8% of the subjects had dental fluorosis, a value that was significantly higher than in the inland region (area 2, 24.4%) and border departments (area 3, 22.5%) (x2 = 27.92, p < .0001). Students from families with a low socio-economic level showed less prevalence of dental fluorosis than those with a high level (x2 = 14.58, p = .002).Conclusion: Significant differences exist in the prevalence of dental fluorosis in relation to place of residence and socio-economic level.


Assuntos
Fluoretos/efeitos adversos , Fluorose Dentária/epidemiologia , Características de Residência , Classe Social , Estudantes/estatística & dados numéricos , Criança , Estudos Transversais , Humanos , Prevalência , Índice de Gravidade de Doença , Uruguai/epidemiologia , Abastecimento de Água
7.
Arch Oral Biol ; 110: 104626, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31838295

RESUMO

OBJECTIVE: Dental fluorosis (DF) is a dental development disorder caused by chronic fluoride overconsumption. There are differences in the susceptibility to and severity of DF in studied populations. The objective of the present study was to determine if single-nucleotide variations (SNVs) in the genes Amelogenin (AMELX), Odontogenic Ameloblast Associated (ODAM) and Matrix Metalloproteinase 20 (MMP20) are associated with DF by evaluating the relationship between variations in these genes and the degree of DF severity. SUBJECTS AND METHODS: Schoolchildren from two regions of Durango State and Mexico City, Mexico, were studied. The DF phenotype was determined using the Thylstrup and Fejerskov (TF) index. DNA was obtained from the buccal mucosa of each participant, and the presence of the variations rs946252 in AMELX, rs1514392 in ODAM and rs1784418 in MMP20 was determined by bidirectional DNA sequencing. RESULTS: A total of 180 DNA samples from 30 schoolchildren from 2 areas of Durango State were sequenced and analyzed. Differences in the severity of DF were found between the study areas (p = 0.006). SNVs in theMMP20 gene were present in 76.9 % of the participants in the high fluoride concentration and lower DF severity area. CONCLUSION: AMELX and ODAM variations was not different between the two populations with respect to DF severity; however, the presence of rs1784418 differed between phenotypes with regard to susceptibility to DF. Therefore, MMP20 might be related to the various phenotypes of DF and may serve as a protective marker.


Assuntos
Amelogenina , Fluorose Dentária , Peptídeos e Proteínas de Sinalização Intracelular , Metaloproteinase 20 da Matriz , Amelogenina/genética , Proteínas de Transporte , Criança , Fluoretos , Fluorose Dentária/genética , Humanos , Peptídeos e Proteínas de Sinalização Intracelular/genética , Metaloproteinase 20 da Matriz/genética , México , Fenótipo , Análise de Sequência de DNA
8.
Chemosphere ; 239: 124811, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31726522

RESUMO

China has been suffering from endemic fluorosis for the past 30 years. This study investigated fluoride concentrations in 10 districts of Tianjin, China, to illustrate their spatial distribution characteristics and potential human health risks. The results showed fluoride concentration of 0.01-6.30 mg L-1 with a mean value of 0.99 mg L-1, and 78.82% of water fluoride reaches the standard for drinking water (1.5 mg L-1). Higher fluoride levels were recorded in deep well pumps supply zones, and more potential changes in fluoride occurred was positively correlated with pH in groundwater. Mean value of fluoride in drinking water in 10 districts followed the order of WQ > BC > JZ > NH > BD > BH > JN > JH > DL > XQ. Estimations of non-carcinogenic risk for drinking water indicated that mean hazard quotient values of fluoride for combined pathways (i.e., oral ingestion and dermal absorption) were >1.0 for all age groups of WQ and BC. The results also showed that the estimated risk primarily came from the ingestion pathway. Risk levels for children varied obviously, generally in the order of 1-4y > 4-7y > 7-9y (years old). In the central tendency center and reasonable maximum exposure conditions, estimated risks were 1.25, 1.12, 0.771 and 3.66, 3.29, 2.27, respectively. The results supply material information for health authorities in fluorosis areas to put forward more efficient policies to control the endemic diseases. Attention should be paid to the formulation of health promotion strategies and measures to reduce fluoride intake in order to protect the health of residents.


Assuntos
Água Potável/química , Fluoretos/análise , Fluorose Dentária/epidemiologia , Abastecimento de Água , Criança , Pré-Escolar , China/epidemiologia , Ingestão de Alimentos , Água Subterrânea , Humanos , Lactente , Minerais/análise , Probabilidade , Medição de Risco , Absorção Cutânea
9.
Georgian Med News ; (295): 42-47, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31804197

RESUMO

The aim of the study was to study the current problems of non-carious dental lesions in residents of Penza, depending on the influence of production factors. In the structure of non-carious lesions, there is a large group of diseases (and injuries) of the hard tissues of the teeth (enamel, dentin, cement), which have their various clinical manifestations, the occurrence and development of which is not directly related to the microbial factor, unlike carious lesions. Such diseases are enamel and dentin hypoplasia, fluorosis, wedge-shaped defect, etc. All these diseases can be manifested by spotting, expressed to varying degrees on permanent and temporary teeth, which sometimes complicates the differential diagnosis with the initial stages and causes a significant aesthetic defect. Thus, the identification and treatment of non-carious lesions in practical dentistry is undoubtedly an urgent task. The team of authors conducted a dental examination of 350 patients from among adult residents of Penza and the Penza region aged from 20 to 60 years of the main professional groups of the region (working at enterprises of heavy and medium machinery, in the timber processing industry, engaged in agriculture). As a result of the study it was revealed that the Penza region is endemic for fluorosis, in connection with which there are high prevalence rates of fluorosis and hypoplasia of teeth. At the same time, respondents working in the machine-building and timber processing industries have a slightly lower prevalence, which is associated with large proportions of the foreign population (persons born and raised in other regions). At the same time, the influence of production factors on the incidence of different types of non-carious dental pathology in respondents working in the machine-building and timber processing industries of the Penza region was established. This mainly concerned non-carious diseases that occur after teething-pathological abrasion of teeth, wedge-shaped defect, multiple cracks of enamel.


Assuntos
Cárie Dentária , Hipoplasia do Esmalte Dentário , Fluorose Dentária , Dente , Adulto , Cárie Dentária/epidemiologia , Esmalte Dentário , Hipoplasia do Esmalte Dentário/epidemiologia , Dentina , Fluorose Dentária/epidemiologia , República da Geórgia/epidemiologia , Humanos , Pessoa de Meia-Idade , Prevalência , Adulto Jovem
10.
Oral Health Prev Dent ; 17(6): 547-556, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31825027

RESUMO

PURPOSE: Dentin hypersensitivity (DH) is a prevalent painful condition of the teeth, the management of which lies in the obliteration of patent dentinal tubules. The purpose of this study was to compare the efficacy of 5% potassium nitrate (PN), low-level laser therapy (LLLT), and combination of low-level laser therapy and 5% potassium nitrate (LLLT+PN) in patients with fluorotic and non-fluorotic hypersensitive teeth. MATERIALS AND METHODS: Ninety self reporting patients with DH completed the randomised, double-blind study. Patients were equally divided into fluorosis group (FG), with moderate to moderately severe fluorosis and the non-fluorosis group (NFG) and subdivided into 3 groups to receive PN, LLLT (810 nm, 1 W) alone and LLLT+PN. Each participant had at least one tooth eliciting a response of ≥ 3 on a visual analog scale (VAS) to evaporative, thermal and electric tactile stimulus (digital scratch-o-meter). The teeth were evaluated at baseline, 30 min post treatment, 1 week, 4 weeks and 12 weeks. The magnitude of pressure applied by the scratch-o-meter was also assessed for all three interventions. RESULTS: Statistically, LLLT+PN was more effective in alleviating DH at all time intervals compared to baseline. However, statistically significant results (p ˂ 0.05) were seen with LLLT+PN at 12 weeks in FG. Magnitude of pressure applied showed statistically significant differences with LLLT+PN at 30 min post treatment. CONCLUSION: LLLT+PN alleviated DH at all time intervals, with a greater effect in the fluorotic group. However, LLLT+PN was more efficacious in reducing DH at 12 weeks post treatment in the fluorotic group.


Assuntos
Dessensibilizantes Dentinários , Sensibilidade da Dentina , Fluorose Dentária , Terapia com Luz de Baixa Intensidade , Método Duplo-Cego , Humanos , Resultado do Tratamento
11.
Pan Afr Med J ; 34: 72, 2019.
Artigo em Francês | MEDLINE | ID: mdl-31819788

RESUMO

Dental fluorosis is a developmental anomaly affecting aesthetic appearance. The association between microabrasion and external bleaching has shown satisfactory outcomes because it improves aesthetic outcome in patients with light dental fluorosis. The purpose of this study was to update the role of this association as well as its different effects on the enamelled surface.


Assuntos
Microabrasão do Esmalte/métodos , Fluorose Dentária/complicações , Clareamento Dental/métodos , Humanos
12.
Rev Esp Salud Publica ; 932019 12 17.
Artigo em Espanhol | MEDLINE | ID: mdl-31844039

RESUMO

OBJECTIVE: The daily consumption of fluoridated water is one of the most beneficial measures in dental caries prevention. The objective of this paper was to analyze the content of fluorine and heavy metals in the bottled natural mineral water available in stores in Spain. METHODS: A descriptive and transversal study was done throughout 2019. Analysing a total of 20 bottled waters marketed in Spain during this year. Mainly, fluoride concentration (ppm/ml) was analyzed with an ion-specific electrode (Orion model 96-09, Orion Research, Cambridge, MA) coupled to an ion analyzer (Orion EA-940). The heavy metals were analyzed by ICP-MS (Agilent model 7900). A descriptive statistical study of the data was carried out. RESULTS: The minimum value of fluorine found was 0.05 ppm and the maximum 0.95ppm. 80% of the brands analyzed contain less than 0.6 ppm F. Only 1 brand exceeds 0.8 ppm F. Chromium and arsenic were the heavy metals present in all brands, without exceeding the maximum dose. No brand of bottled water indicated heavy metals on the label, and only 1 mark indicated the fluoride concentration on the label. CONCLUSIONS: There is a great variability in the chemical composition of bottled waters marketed in Spain. Most have a fluoride concentration lower than that recommended to prevent tooth decay, which would require an extra supply of fluoride. In the bottled waters analyzed there are heavy metals but they did not exceed the maximum doses established by legislation.


Assuntos
Cárie Dentária/prevenção & controle , Água Potável/química , Fluoretos/análise , Fluorose Dentária/prevenção & controle , Metais Pesados/análise , Águas Minerais , Poluentes Químicos da Água/análise , Estudos Transversais , Cárie Dentária/etiologia , Água Potável/análise , Fluorose Dentária/etiologia , Humanos , Águas Minerais/análise , Espanha , Qualidade da Água
13.
Medicine (Baltimore) ; 98(51): e18463, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31861023

RESUMO

There is a lack of population-based surveys on oral health in Jilin province. Accordingly, this study aimed to understand the oral health status of 12-year-old children in Jilin province, China, to demonstrate the prevalence of oral health-related diseases, as well as to identify the associated risk factors.From February to April 2017, a cross-sectional investigation was conducted among 2324 children aged 12 years from 63 public schools of 9 regions in Jilin province, China. A questionnaire of World Health Organization (WHO) was conducted to ascertain the potential risk factors associated with oral diseases. The 3 examiners, who received theoretical and clinical training before the investigation, underwent clinical examinations to assess dental caries, dental fluorosis, presence of calculus, and gingival bleeding. Furthermore, the mean decayed-missing-filled tooth (DMFT), the rate of pit and fissure closure, education level of patients, brushing habits, and sugar consumption were also evaluated. All data analyses were conducted using SPSS version 19.0.A total of 2324 twelve-year-old children from 9 regions in Jilin-China were examined from February to April 2017. The prevalence of dental caries, dental fluorosis, calculus, and gingival bleeding reached 40.8%%, 21.8%, 47.93%, and 48.88%, respectively; the mean DMFT was 0.8787. The proportion of DMFT was 83.7% for decayed teeth, 0.2% for missing teeth, and 16.1% for filling teeth. The prevalence of pit and fissure closure was 10%.Educational level of parents was negatively correlated with the prevalence of oral diseases, whereas sugar consumption was positively associated with dental caries prevalent in children. We also found that there was no association between brushing habits and dental caries in children aged 12 years in Jilin Province.


Assuntos
Índice CPO , Cárie Dentária/epidemiologia , Fluorose Dentária/epidemiologia , Saúde Bucal/estatística & dados numéricos , Criança , China/epidemiologia , Açúcares da Dieta , Conhecimentos, Atitudes e Prática em Saúde , Humanos
14.
J Contemp Dent Pract ; 20(10): 1217-1222, 2019 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-31883260

RESUMO

AIM: The aim of this study was to evaluate eruption pattern and occurrence of caries in children affected with fluorosis. MATERIALS AND METHODS: One hundred and fifty subjects (75 each with/without fluorosis) with age group of 7-8 years were selected. Dental fluorosis assessed on the buccal surfaces of the permanent incisors and molars and scored using the Thylstrup and Fejerskov index. The tooth were scored as emerged when at least one cusp of the tooth was visible in the mouth. Caries attack rate in primary and permanent teeth were estimated using DMFS and defs index in fluorosis patient. The findings were subjected to statistical analysis. The data were analyzed using Student "t" test and ANOVA "F" test. RESULTS: There was statistically highly significant difference found in the incidence of occlusal, mesioproximal, and distoproximal caries between fluorotic and nonfluorotic patients (p < 0.001). The result of present study showed a nonsignificant association between fluoride exposure parameter and median emergence ages of permanent incisors and molar teeth. On the other hand, caries occurrence shows a significant association with fluorosis. CONCLUSION: In this study, a significant positive correlation exists in the prevalence of caries and fluorosis. It is concluded that occlusal and proximal caries are less pronounced in fluorosis patients. CLINICAL SIGNIFICANCE: Dental caries is a public health problem. In this study, we study the fluoride effect since the predominant cariostatic effect of fluoride is beneficial in extensive caries reduction without a concomitant risk of dental fluorosis. How to cite this article: Trivedi S, Trivedi A, Banda NR, et al. Evaluation of Eruption Pattern and Caries Occurrence among Children Affected with Fluorosis. J Contemp Dent Pract 2019;20(10):1217-1222.


Assuntos
Cárie Dentária , Fluorose Dentária , Criança , Índice CPO , Fluoretos , Humanos , Prevalência , Erupção Dentária
15.
J Water Health ; 17(6): 845-862, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31850893

RESUMO

The relationship between naturally fluoridated groundwater and dental fluorosis has received large attention from researchers around the world. Despite recognition that several factors influence this relationship, there is a lack of systematic studies analyzing the heterogeneity of these results. To fill such a gap, this study performs a systematic review and meta-analysis to understand which factors influence this relationship and how. Selected studies were sampled between 2007 and 2017 from Web of Science, PubMed, Google Scholar and Scopus using keywords and Boolean operators. Results of the systematic review show that dental fluorosis affects individuals of all ages, with the highest prevalence below 11, while the impact of other factors (gender, environmental conditions, diet and dental caries) was inconclusive. Meta-regression analysis, based on information collected through systematic review, indicates that both fluoride in drinking water and temperature influence dental fluorosis significantly and that these studies might be affected by publication bias. Findings show that fluoride negatively affects people's health in less developed countries. The conclusions discuss policy tools and technological innovations that could reduce fluoride levels below that of the World Health Organization (WHO) (<1.5 mg/L).


Assuntos
Cárie Dentária/prevenção & controle , Água Potável/química , Fluoretos/farmacologia , Fluorose Dentária , Fluoretos/efeitos adversos , Água Subterrânea , Humanos , Prevalência
16.
Ann Agric Environ Med ; 26(4): 623-629, 2019 Dec 19.
Artigo em Inglês | MEDLINE | ID: mdl-31885237

RESUMO

INTRODUCTION: Fluorine is a common element in nature; however, the difference between a beneficial dose and a toxic dose for the organisms is small. The main source of fluoride for humans is water in addition to food. OBJECTIVE: The aim of this study was to estimate the degree of severity of pathological changes, namely, caries or fluorosis, in the mineralized tooth tissue of 15-year-old adolescents with respect to their hygienic and nutritional habits, and the content of fluorine in drinking water, soil and plant products. MATERIAL AND METHODS: 100 adolescents aged 15 from schools in Sosnilka, L'viv region, were examined. The condition of mineralized tooth tissue was evaluated by the caries severity, expressed by the mean number D3MFT, caries frequency and value of the SIC index. Fluorine in plant material and soil were determined according to the PN-G-04543:1982 standard, and water according to the PN-EN ISO 10304 - 1: 2009+ AC: 2012 standard. RESULTS: Severity of caries disease expressed by the D3MFT number in the examined group of 15-year-olds was 3.39; in the group of girls - 3.08, and in the group of boys - 3.76. In the examined group, the average number of teeth with fluorosis was 7.59. Value of the SIC index among the examined population of students (n-31) was 6.26: 5.89 (n-18) for girls and 7.31 (n-13) for boys. Fluorine concentration in the water was 0.78 - 1.25(mg·dm-3). In the soil, it also did not vary across the sampled areas and amounted, on average, to 176 mg·dm-3. The biggest fluorine content noted in the dry mass of beetroots was 3.50 (mg F· kg), and the lowest - 3.34 (mg F· kg). CONCLUSIONS: Close to optimal fluorine content lowers caries severity and frequency of fluorosis. Optimal fluorine content in drinking water and food does not require additional diet supplementation.


Assuntos
Cárie Dentária/epidemiologia , Água Potável/análise , Flúor/análise , Fluorose Dentária/epidemiologia , Adolescente , Calcificação Fisiológica , Cárie Dentária/etiologia , Cárie Dentária/metabolismo , Higienistas Dentários , Água Potável/metabolismo , Feminino , Flúor/efeitos adversos , Flúor/metabolismo , Fluorose Dentária/etiologia , Fluorose Dentária/metabolismo , Humanos , Masculino , Dente/fisiopatologia , Ucrânia/epidemiologia
17.
Stomatologiia (Mosk) ; 98(5): 56-59, 2019.
Artigo em Russo | MEDLINE | ID: mdl-31701930

RESUMO

AIM: Caries experience assessment in adult patients with dental fluorosis living in endemic area and in the region with normal fluoride concentration in drinking water; assessment of correlation between DMFT index and elementary composition of mixed saliva in adult patients with dental fluorosis. MATERIAL AND METHODS: Two groups of patients took part in the clinical study. Group 1 involved 33 persons with dental fluorosis living in endemic area. In group 2 there were 31 persons with dental fluorosis living in region with normal fluoride concentration in drinking water. DMFT index was calculated. Enamel resistance to acids and remineralizing activity of saliva were tested. Electron probe X-ray microanalysis (EPXMA) was used to detect elementary composition of mixed saliva. RESULTS: The mean DMFT value was 3.97±0.31 in group 1 and 4.65±0.41 in group 2, which was 15% higher. In both groups high enamel resistance to acids was observed, but remineralizing activity of saliva was significantly better in group 1. The mean fluoride concentration in mixed saliva was 42% higher in group 1 comparing to group 2 (0.108±0.003 mass%, and 0.063±0.0002 mass%, respectively). CONCLUSION: Adult patients with dental fluorosis living in endemic area are more caries resistant comparing to those living in region with normal fluoride concentration in drinking water. It's associated with elevated fluoride concentration in mixed saliva due to permanent fluoride consumption with drinking water.


Assuntos
Cárie Dentária , Fluorose Dentária , Fluoretos , Humanos , Prevalência , Saliva , Abastecimento de Água
18.
Braz Oral Res ; 33: e120, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31778475

RESUMO

The objective of this study is to compare the resin-enamel bond strength (mµSBS), in-situ degree of conversion (DC), and the enamel-etching pattern (SEM/EDX) of universal adhesive systems when applied to sound and fluorotic enamel. Ninety-eight human molars were sectioned into 4 parts and divided into 24 groups according to 1) enamel surface (sound or fluorotic enamel), 2) adhesive system (Clearfil Universal Bond [CUB], Futurabond U [FBU], iBond Universal [IBU], and Scotchbond Universal [SBU]), and 3) application mode (etch-and-rinse [ER], active self-etch [Active-SE], and passive self-etch [Passive-SE]). Specimens were stored at 37 °C, for 24 hours and tested at 1.0 mm/min (µSBS). Enamel-resin interfaces were evaluated for in-situ DC. The enamel-etching pattern was evaluated under a SEM/EDX. Data from mµSBS and in-situ DC was analyzed using a three-way ANOVA and Tukey's test at 5 % level of significance. For all adhesives, the ER resulted in a statistically significant higher mean mµSBS than the passive-SE in both substrates (p < 0.001). For all adhesives, active-SE resulted in mean mµSBS (p > 0.31) and in-situ DC (p > 0.45) that were statistically similar to those obtained with the ERs in both substrates. A statistically significant, higher mean mµSBS and in-situ DC were obtained in sound enamel (p < 0.001) than in fluorotic enamel. In general, SBU showed higher mean values for mµSBS and in-situ DC compared to those of CUB and IBU (p < 0.001). ER and active-SE showed the deepest enamel-etching pattern in both substrates. A higher amount of fluor was observed in fluorotic enamel. The active application of universal adhesives in the SE-mode may be a viable alternative to increase the adhesive properties in sound and fluorotic enamel.


Assuntos
Colagem Dentária/métodos , Esmalte Dentário/química , Esmalte Dentário/efeitos dos fármacos , Fluorose Dentária , Cimentos de Resina/química , Análise de Variância , Humanos , Teste de Materiais , Microscopia Eletrônica de Varredura , Distribuição Aleatória , Valores de Referência , Reprodutibilidade dos Testes , Resistência ao Cisalhamento/efeitos dos fármacos , Espectrometria por Raios X , Análise Espectral Raman , Propriedades de Superfície/efeitos dos fármacos
19.
J Clin Pediatr Dent ; 43(6): 388-392, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31657991

RESUMO

Background: The dentist has a responsibility to provide nutritional counseling and fluoride consumption recommendations. The purpose of this study was to measure and compare the concentrations of fluoride in a large number of alternative milk beverages and bovine milk. Study design: Thirty-three milk alternatives, including 9 diverse types and 11 different brands, were analyzed using a fluoride ion-selective electrode (ISE) and an ISE meter. Fluoride concentrations were then compared among different types and between different brands. Results: Fluoride concentration ranged from 0.01 ppm (Malk® Pure Cashew Milk) to 0.80 ppm (Almond Breeze® Original Unsweetened Almond Milk) with a mean concentration of 0.32 ppm. When compared, bovine whole milk (0.03±0.00 ppm) was found to be significantly lower in fluoride than all samples analyzed except Malk Pure Cashew Milk, Soy Milk Vanilla, Rice Milk, and Pecan Milk. Major differences also existed between the same milk alternative types of different brands. Conclusion: The amount of fluoride varies among different types of milk alternatives and different brands. To ensure that the dental team can provide proper recommendations regarding fluoride use, manufacturers should consider placing fluoride concentrations on nutrition labels.


Assuntos
Fluoretos , Fluorose Dentária , Animais , Bebidas , Bovinos , Leite
20.
BMC Public Health ; 19(1): 1298, 2019 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-31619212

RESUMO

BACKGROUND: The concentration of fluoride in ground drinking water greater than the world health organization standard value imposes a serious health, social and economic problem in developing countries. In the Ethiopian Rift Valley where deep wells are the major source of drinking water, high fluoride level is expected. Though many epidemiological studies on fluoride concentration and its adverse effects have been conducted in the region, the result is highly scattered and needs systematically summarized for better utilization. OBJECTIVE: This research is aimed at estimating the pooled level of fluoride concentration in ground drinking water and the prevalence of dental fluorosis among Ethiopian rift valley residences. METHODS: Cochrane library, MEDLINE/PubMed and Google scholar databases were searched for studies reporting the mean concentration of fluoride in ground water and prevalence of dental fluorosis in Ethiopian Rift valley. Search terms were identified by extracting key terms from reviews and selected relevant papers and review medical subject headings for relevant terms. RESULTS: The mean fluoride level in ground water and the prevalence of dental fluorosis were pooled from eleven and nine primary studies conducted in Ethiopian Rift Valley respectively. The pooled mean level of fluoride in ground water therefore was 6.03 mg/l (95% CI; 4.72-7.72, p < 0.001) and the pooled prevalence of dental fluorosis among residents in Ethiopian rift valley was 32% (95% CI: 25, 39%, p < 0.001), 29% (95% CI: 22, 36%, p < 0.001) and 24% (95% CI: 17, 32%, p < 0.001 for mild, moderate and sever dental fluorosis respectively. The overall prevalence of dental fluorosis is 28% (95% CI, 24, 32%, p < 0.001). CONCLUSIONS: Though, the concentration level varies across different part of the rift valley region, still the level of fluoride in ground drinking water is greater than the WHO standard value (1.5 mg/l). Relatively high-level pooled prevalence of dental fluorosis was also seen in Ethiopian rift valley. Therefore, further studies covering the temperature, exposure time and other intake path ways with large sample size is recommended. Interventional projects should be implemented to decrease the concentration of fluoride in the ground drinking water source.


Assuntos
Fluoretos/análise , Fluorose Dentária/epidemiologia , Água Subterrânea/química , Etiópia/epidemiologia , Humanos , Prevalência
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA