RESUMEN

The object of this paper is to evaluate the marginal filtration occurring between restoration/teeth in cavities filled with silver alloy when using different cavity varnish and adhesives. In 50 teeth removed as a result of decay, cavities were prepaired on vestibular faces and were divided into 5 equal groups: Group A: with no caviti varnish; Group B: two coats of a linkin agent (Scotch Bond 3M); Group C: an amalgam liner base (Voco); Group D; two coats of copal varnish: Group E: an amalgam bond base (Carl San Remo, Germany). All groups were filled with a silver alloy. The teeth were inmersed in a fuchsin solution at different temperatures (17.37 degrees C and 50 degrees C) for 20 minutes. Longitudinal cuts were made for visualization under a stereoscopic magnifying glass. Each group was observed by five odontologists and was classified according to four categories: Grade I: no filtration: Grade II: less than 1/3 wall filtration; Grade III: more than 1/3 wall filtration; Grade IV: filtration in walls and floor. Teeth with pulp filtration were discarded. Total and percentage values were determined for each analysed group. The results revealed that: Group A: 100

of samples corresponds to Grade IV. Group B: 40

of sample falls within Grade II while the rest corresponds to the highest grade. Group C: 30

belongs to Grade II, 60

to Grade III and the remaining 10

falls within Grade I, while the remaining 20

correspond to Grades III and IV, respectively. Group E: 50

for Grade I and the rest in Grade II.(ABSTRACT TRUNCATED AT 250 WORDS)

RESUMEN

The object of this paper is to evaluate the marginal filtration occurring between restoration/teeth in cavities filled with silver alloy when using different cavity varnish and adhesives. In 50 teeth removed as a result of decay, cavities were prepaired on vestibular faces and were divided into 5 equal groups: Group A: with no caviti varnish; Group B: two coats of a linkin agent (Scotch Bond 3M); Group C: an amalgam liner base (Voco); Group D; two coats of copal varnish: Group E: an amalgam bond base (Carl San Remo, Germany). All groups were filled with a silver alloy. The teeth were inmersed in a fuchsin solution at different temperatures (17.37 degrees C and 50 degrees C) for 20 minutes. Longitudinal cuts were made for visualization under a stereoscopic magnifying glass. Each group was observed by five odontologists and was classified according to four categories: Grade I: no filtration: Grade II: less than 1/3 wall filtration; Grade III: more than 1/3 wall filtration; Grade IV: filtration in walls and floor. Teeth with pulp filtration were discarded. Total and percentage values were determined for each analysed group. The results revealed that: Group A: 100% of samples corresponds to Grade IV. Group B: 40% of sample falls within Grade II while the rest corresponds to the highest grade. Group C: 30% belongs to Grade II, 60% to Grade III and the remaining 10% to Grade IV; Group D: 30% falls within Grade I, while the remaining 20% and 50% correspond to Grades III and IV, respectively. Group E: 50% for Grade I and the rest in Grade II.(ABSTRACT TRUNCATED AT 250 WORDS)

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RESUMEN

The object of this paper is to evaluate the marginal filtration occurring between restoration/teeth in cavities filled with silver alloy when using different cavity varnish and adhesives. In 50 teeth removed as a result of decay, cavities were prepaired on vestibular faces and were divided into 5 equal groups: Group A: with no caviti varnish; Group B: two coats of a linkin agent (Scotch Bond 3M); Group C: an amalgam liner base (Voco); Group D; two coats of copal varnish: Group E: an amalgam bond base (Carl San Remo, Germany). All groups were filled with a silver alloy. The teeth were inmersed in a fuchsin solution at different temperatures (17.37 degrees C and 50 degrees C) for 20 minutes. Longitudinal cuts were made for visualization under a stereoscopic magnifying glass. Each group was observed by five odontologists and was classified according to four categories: Grade I: no filtration: Grade II: less than 1/3 wall filtration; Grade III: more than 1/3 wall filtration; Grade IV: filtration in walls and floor. Teeth with pulp filtration were discarded. Total and percentage values were determined for each analysed group. The results revealed that: Group A: 100

of samples corresponds to Grade IV. Group B: 40

of sample falls within Grade II while the rest corresponds to the highest grade. Group C: 30

belongs to Grade II, 60

to Grade III and the remaining 10

to Grade IV; Group D: 30

falls within Grade I, while the remaining 20

and 50

correspond to Grades III and IV, respectively. Group E: 50

for Grade I and the rest in Grade II.(ABSTRACT TRUNCATED AT 250 WORDS)

RESUMEN

The amount of streptococcus mutans in saliva has been suggested as a way of estimating caries activity (Klock; Krasse, 1979; Newbrum et al 1984; Sabelli, 1985; Thylstrop; Fejerskov, 1988). This study was carried out no evaluate the relationship between an adherence test (formation of streptococcus mutans colonies which allows to group individuals according to level of risk) with the caries activity was determine in 137 children and samples of saliva (0.1 ml) were obtained from each of them. They were processed in mitis salivarius sucrose al 37 degrees C. during 48 hours. According to the reaching each child caries activity was recorded as percentage of non-active caries in the mean values in each group were statistically analyzed using Kramer's extension of Duncan's test. Significant differences were found only between high and low level risk groups. In the care of extreme groups the test seems to be valuable form estimation of caries activity.

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RESUMEN

The amount of streptococcus mutans in saliva has been suggested as a way of estimating caries activity (Klock; Krasse, 1979; Newbrum et al 1984; Sabelli, 1985; Thylstrop; Fejerskov, 1988). This study was carried out no evaluate the relationship between an adherence test (formation of streptococcus mutans colonies which allows to group individuals according to level of risk) with the caries activity was determine in 137 children and samples of saliva (0.1 ml) were obtained from each of them. They were processed in mitis salivarius sucrose al 37 degrees C. during 48 hours. According to the reaching each child caries activity was recorded as percentage of non-active caries in the mean values in each group were statistically analyzed using Kramers extension of Duncans test. Significant differences were found only between high and low level risk groups. In the care of extreme groups the test seems to be valuable form estimation of caries activity.

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