Comparación de la microfiltración del sellado marginal entre un adhesivo de octava generación versus uno de novena generación
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Archivos
Fecha
2022
Profesor/a Guía
Facultad/escuela
Idioma
es
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Editor
Universidad Andrés Bello
Nombre de Curso
Licencia CC
Licencia CC
Resumen
La constante demanda y desarrollo de la odontología restauradora, ha
llevado consigo una gran evolución sobre los materiales dentales que tenemos
a nuestra disposición para realizar tratamientos restaurativos en nuestros
pacientes. Un ejemplo de estos avances, son las distintas generaciones de
sistemas adhesivos modernos, que pretenden lograr una óptima adhesión del
material restaurador con el sustrato dentario. Objetivo principal: Comparar el
porcentaje de microfiltración entre dos sistemas adhesivos universales
diferentes de la misma marca comercial KERR, el Optibond Universal (octava
generación) y Optibond Extra Universal (novena generación) Métodos y
materiales: Se utilizaron 32 dientes molares sanos, los cuales fueron divididos
en dos grupos respectivamente; Grupo A: técnica adhesiva autograbado con
Optibond Extra Universal, Grupo B: técnica adhesiva de grabado selectivo con
Optibond Universal. En cada diente se confeccionaron dos cavidades
proximales, cada preparación con paredes axial y pulpar de 3 milímetros de
profundidad, para luego ser obturadas con composite SIMILE A3 (KERR).
Posteriormente cada diente fue colocado en una solución de azul de metileno al
2% durante 24 horas, y luego sometido a un envejecimiento artificial de
termociclado según lo indicado en la norma ISO TS 11450. Se cortaron las
piezas con disco carborundum a través del eje mayor del diente, después en
cada restauración se evaluó bajo microscopía óptica con objetivo 4X, el
porcentaje de profundidad de penetración del colorante a lo largo de las paredes.
Para el análisis de datos se utilizó el test de Shapiro Wilk, la prueba de Levene
de homocedasticidad y la prueba no paramétrica U de Mann-Whitney, con un
nivel de significancia del 95%. Resultados: La prueba SW fue altamente
significativa (p=0,0005) para los adhesivos estudiados, la prueba de Levene de
homocedasticidad no fue significativa (p>0,05); como consecuencia, fue
empleada la prueba de U de Mann-Whitney con un nivel de significación
empleado de α<0,05. Conclusión: Adhesivo Optibond Universal y Optibond
Extra universal no presentaron diferencias significativas en el porcentaje de
microfiltración marginal en modalidad autograbado.
The constant demand and development of restorative dentistry has brought it a great evolution in the dental materials that we have at our disposal to carry out restorative treatments in our patients. An example of these advances are the different generations of modern adhesive systems, which aim to achieve a correct adhesion of the restorative material with the dental substrate. Main objective: To compare the percentage of microfiltration between two different universal adhesive systems of the same commercial brand KERR, Optibond Universal (eighth generation) and Optibond Extra Universal (ninth generation). Methods and materials: 32 healthy molar teeth were used, which were divided into two groups respectively; Group A: self-etch adhesive technique with Optibond Extra Universal, Group B: self-etch adhesive technique with Optibond Universal. In each tooth, two cavities were made in the axial and pulpal direction, each one 3 millimeters, to be later restored with SIMILE A3 (KERR) composite. Subsequently, each tooth was placed in a 2% methylene blue solution for 24 hours, and then subjected to artificial thermocycling aging as indicated in the ISO TS 11450 standard. The pieces were cut with a carborundum disc through the major axis of the tooth, then in each restoration the percentage of depth of penetration of the dye along the walls was evaluated under optical microscopy with a 4X objective. For data analysis, the Shapiro Wilk test, the Levene homoscedasticity test and the non-parametric Mann-Whitney U test were used, with a significance level of 95%. Results: The SW test was highly significant (p=0.0005) for the adhesives studied, the Levene homoscedasticity test was not significant (p>0.05); Consequently, the Mann-Whitney U test was used with a significance level of α<0.05. Conclusion: Optibond Universal Adhesive and Optibond Extra Universal did not present significant differences in the percentage of marginal microfiltration in self-etching mode.
The constant demand and development of restorative dentistry has brought it a great evolution in the dental materials that we have at our disposal to carry out restorative treatments in our patients. An example of these advances are the different generations of modern adhesive systems, which aim to achieve a correct adhesion of the restorative material with the dental substrate. Main objective: To compare the percentage of microfiltration between two different universal adhesive systems of the same commercial brand KERR, Optibond Universal (eighth generation) and Optibond Extra Universal (ninth generation). Methods and materials: 32 healthy molar teeth were used, which were divided into two groups respectively; Group A: self-etch adhesive technique with Optibond Extra Universal, Group B: self-etch adhesive technique with Optibond Universal. In each tooth, two cavities were made in the axial and pulpal direction, each one 3 millimeters, to be later restored with SIMILE A3 (KERR) composite. Subsequently, each tooth was placed in a 2% methylene blue solution for 24 hours, and then subjected to artificial thermocycling aging as indicated in the ISO TS 11450 standard. The pieces were cut with a carborundum disc through the major axis of the tooth, then in each restoration the percentage of depth of penetration of the dye along the walls was evaluated under optical microscopy with a 4X objective. For data analysis, the Shapiro Wilk test, the Levene homoscedasticity test and the non-parametric Mann-Whitney U test were used, with a significance level of 95%. Results: The SW test was highly significant (p=0.0005) for the adhesives studied, the Levene homoscedasticity test was not significant (p>0.05); Consequently, the Mann-Whitney U test was used with a significance level of α<0.05. Conclusion: Optibond Universal Adhesive and Optibond Extra Universal did not present significant differences in the percentage of marginal microfiltration in self-etching mode.
Notas
Tesis (Cirujano Dentista)
Palabras clave
Adhesivos Dentales, Evaluación, Materiales Dentales