RESUMO
This research was carried out with the purpose of learning about relationship between degree of infection by Streptococcus mutans in saliva and prevalence of caries and further incidence in a one year term. A total of 931 children aged 2-3 years of Havana City and Sancti Spiritus Province, and 10 different series of school children aged 6-12 years of both provinces, with a total of 848 children, were studied. A direct significant relationship between degree of infection by S. mutans and prevalence of caries (percentage of affected children and co/COPD index) was found in the groups under study. Likewise, in the relationship between previous degree of infection and incidence of caries, differences were significative in children aged 2-3 years and in six of the 10 series of school children, with a correlation (r) of 0.216. It is analyzed that despite that degree of infection by Streptococcus mutans is the parameter with higher correlation with cariogenic activity, its predictive value is not enough by itself, therefore, a joint valuation with other parameters also related to cariogenic activity is required, in order to be able to reach necessary validity in the prognosis.
Assuntos
Cárie Dentária/microbiologia , Streptococcus mutans/isolamento & purificação , Criança , Pré-Escolar , Cuba/epidemiologia , Índice CPO , Cárie Dentária/epidemiologia , Suscetibilidade à Cárie Dentária , Humanos , Prevalência , Saliva/microbiologiaRESUMO
This research was performed with the purpose of learning about effect of oral rinsing, every two weeks, with mineralizing solution (Minersol) on recently erupted permanent dentition. Reduction obtained in the incidence of caries at one year term ranged between 49.2 and 82.1% for first molar teeth and 23.4 and 36.3% for second molar teeth; both differences were significant, but no reduction was obtained in the incidence of caries in the bicuspid teeth. Preventing effect obtained is attributed to ionic incorporation in enamel superficial levels, which decreases the diffusion of acids acting in demineralization. It is concluded that the use of mineralizing solution in those ages of eruption of permanent dentition reduces incidence of caries and, therefore, its use as preventing method is recommended.
Assuntos
Cárie Dentária/prevenção & controle , Antissépticos Bucais/uso terapêutico , Pré-Escolar , Ensaios Clínicos como Assunto , Esmalte Dentário/efeitos dos fármacos , Humanos , Dente Molar , Saliva Artificial/uso terapêutico , Erupção DentáriaRESUMO
Relationship existing between enamel resistance (by developed colorimetric technique) and previous experience of caries and with further incidence, at a term of a year, was studied in schoolchildren aged 6, 8, 10 and 12 years. The study comprised 336 children in 1985-1986 period and 385 children in 1985-1987 period. Non significant positive correlation was found between values of colorimetric test and previous experience of caries; but, certainly, positive correlation was found with further incidence on permanent dentition. It is concluded that colorimetric test is useful for the selection of children with a very susceptible enamel, as well as for the prognosis of cariogenic activity valued together with other parameters.
Assuntos
Suscetibilidade à Cárie Dentária , Solubilidade do Esmalte Dentário , Criança , Colorimetria , Cárie Dentária/epidemiologia , Testes de Atividade de Cárie Dentária , Humanos , Concentração de Íons de Hidrogênio , Valor Preditivo dos TestesRESUMO
Degree of mineralization of enamel is one of the parameters mediating in its resistance to acid dissolution and at the stage of teething, the enamel is immature and, therefore, present a higher susceptibility to dental caries. This investigation was carried out with 38 preschool children (means = 5.5 years) and 19 children coursing second grade (means = 7.6 years). They were treated with 10 oral rinsing with mineralizing solution in order to evaluate its effect on enamel resistance to acid dissolution; colorimetric technique was used for such purpose. A study in vitro was also performed in impacted third molars extracted by surgery and to two halves of the clinical crowns of such molars the treatment was applied; the other two halves were taken as control. Increase of enamel resistance found was 18.6% in the study of preschool children and 34.6% in the children attending to second grade school. In both groups, 89.5% of the children increased enamel resistance and in the study in vitro increaser enamel was 14.9%.. It is concluded that the use of risings with mineralizing solution at the outbreak of permanent teething increase, significatively, enamel resistance, and that at the age of seven the enamel is still immature, thus its resistance to acid dissolution can be also increased using mineralizing solution.
Assuntos
Solubilidade do Esmalte Dentário/efeitos dos fármacos , Calcificação de Dente/efeitos dos fármacos , Criança , Pré-Escolar , Colorimetria , Suscetibilidade à Cárie Dentária , Humanos , Antissépticos Bucais , Erupção DentáriaRESUMO
This investigation was performed to evaluate, comparatively, the effect of topical application of Duraphat, Flulak, Fluor-Protector, Bifluorid 12, Profilac, Fluoro-gel-P and Fluocal-gel. Colorimetric technique was used for such purposes. It was found that 67.5% of 283 children treated with those different treatments increased their enamel resistance to acid dissolution, although notable differences were found in the use of these products. Average of increase ranged between 10.7 and 23.5%. Lacs and varnishes provide best results than gels with regard to acid dissolution rate of enamel. Behave of the two national products evaluated (Flulak and Profilac) was similar to the rest of lacs and varnishes, justifying their use at national level for the prevention of caries, avoiding in that way unnecessary importations.
Assuntos
Solubilidade do Esmalte Dentário/efeitos dos fármacos , Fluoretos Tópicos/administração & dosagem , Criança , Colorimetria , Cárie Dentária/prevenção & controle , Suscetibilidade à Cárie Dentária/efeitos dos fármacos , Géis , Humanos , Selantes de Fossas e FissurasRESUMO
An investigation was carried out in hypercaries-producing children, who had have previously curative treatment. Twenty three children were treated with semestral applications of fluorine-chlorhexidine varnish and daily brushing for 15 days every three months, with dental creme with chlorhexidine, while 21 children were selected as control group. Four analysis of Str. mutants in saliva (Matsukubo technique) were performed to each child in both groups, during a year. It was found that children treated reduced, remarkably, the degree of infection by Str. mutans, while degree of infection did not suffer modification in those children of the control group. The final examination performed after one year showed that 15 children of the control group resulted affected by caries (71.4%) with an incidence of 27 caries (1.29 index), while in the group under treatment only a child resulted affected with a caries. Reduction found in the incidence of caries was 96.9%. Problematic of hypercaries-producing child is analyzed and it is concluded that it is necessary to control and record him, and that investment in a strict treatment, such as that successfully assayed by us, should be rentable, since it should reduce amount of extractions of teeth and to contribute in that way to a real promotion of oral health with the infantile population.