Influencia del arenado en la microfiltración marginal de sellado inmediato realizado con adhesivo de 9na generación
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Archivos
Fecha
2022
Autores
Profesor/a Guía
Facultad/escuela
Idioma
es
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Universidad Andrés Bello
Nombre de Curso
Licencia CC
Licencia CC
Resumen
Antecedentes: La investigación en odontología es de suma importancia ya que a través de
este proceso se logra mejorar los procedimientos y aumentar la vida media de las
restauraciones con la finalidad de mantener o mejorar la salud oral de los pacientes. Es por
esto que los conocimientos que entregan los estudios de investigación sobre nuevas técnicas
restauradoras o nuevos biomateriales deben estar en constante actualización.
La evolución de los adhesivos universales permite mejorar las propiedades de estos
materiales con la finalidad de disminuir los errores en su técnica. Debido a esto, es que se
crearon los adhesivos universales, los cuales se caracterizan por ser autograbantes o de
grabado y lavado, ambos utilizando una sola botella (octava generación). En la actualidad la
marca Kerr decidió crear un adhesivo de novena generación el cual es de autograbado pero
con la particularidad de utilizar dos botellas (primer y adhesivo por separado).
La microfiltración es el mayor desafío en las restauraciones adhesivas, ya que ésta puede
traer como consecuencias una brecha entre diente-restauración lo que provocaría una
disminución de la vida útil de la restauración, trayendo como consecuencias caries
secundarias, pulpitis, pigmentación de márgenes afectando la estética y sensibilidad post
operator.
Objetivo: Evaluar el porcentaje de microfiltración marginal del sellado inmediato de la
dentina utilizando adhesivo de 9va generación en el tratamiento de superficie con arenado y
sin arenado previo a la cementación de resina indirecta.
Materiales y métodos: Se realizó un estudio in vitro con muestra de 36 molares sanos con
indicación de exodoncia, recolectados en la Facultad de Odontología UNAB Santiago,
donados por pacientes y se les realizaron dos cavidades clases II, por mesial y distal de las
piezas. Se procedió a limpiar, sellar y preparar la superficie radicular de las muestras para
evitar la filtración de la tinción por apical. Luego se dividieron las muestras en 2 grupos de
18 dientes cada uno; SCA y SSA. Se les realizó sellado inmediato de la dentina con adhesivo
OptiBond ExTRa Universal, y se obturó las cavidades de las muestras con resina compuesta
indirecta Al grupo SCA se le realizó arenado con óxido de aluminio de 50 micras. Posteriormente se
realizó el proceso de termociclado y las muestras fueron sometidas a 500 ciclos en una
solución acuosa entre 4° y 55°C, para luego sumergir los dientes en azul de metileno al 2%
por 24 hrs.
Finalmente, las piezas fueron cortadas axialmente en sentido mesio-distal para valorar el
porcentaje de microfiltración marginal. El análisis estadístico se realizó con el Test de
Shapiro-Wilk
Resultados: El porcentaje de microfiltración en el grupo SSA fue de 15.39% y en el grupo
SCA 17%, obteniendo un valor P= >0.05. Lo que se significa que no hay diferencias
estadísticamente significativas.
Conclusión: los resultados no mostraron diferencias estadísticamente significativas, por lo
que se llegó a la conclusión de que hay un desempeño similar en relación a la microfiltración
marginal, ya sea con arenado o sin arenado en las piezas y el adhesivo usado en esta
investigación.
Antecedents: Research in dentistry is of utmost importance because through this process it is possible to improve procedures and increase the average life of restorations in order to maintain or improve the oral health of patients. This is why the knowledge provided by research studies on new restorative techniques or new biomaterials must be constantly updated. The evolution of universal adhesives allows improving the properties of these materials in order to reduce errors in their technique. This is why universal adhesives were created, which are characterized by being self-etching or etch and rinse, both using a single bottle (eighth generation). Currently, the Kerr brand decided to create a ninth generation adhesive which is self-etching but with the particularity of using two bottles (primer and adhesive separately). Microleakage is the biggest challenge in adhesive restorations, since it can lead to a gap between the tooth and the restoration, which would cause a decrease in the useful life of the restoration, resulting in secondary caries, pulpitis, pigmentation of the margins, affecting esthetics and post operative sensitivity. Objective: To evaluate the percentage of marginal microleakage of immediate dentin sealing using 9th generation adhesive in surface treatment with sandblasting and without sandblasting prior to indirect resin cementation. Materials and methods: An in vitro study was carried out with a sample of 36 healthy molars with an indication for extraction, collected at the UNAB Santiago School of Dentistry, donated by patients, and two class II cavities were made, mesial and distal of the pieces. We proceeded to clean, seal and prepare the root surface of the samples to avoid leaking of the apical staining and not lead to null results. The samples were then divided into 2 groups of 18 teeth each; SCA and SSA. Immediate dentin sealing was performed with OptiBond ExTRa Universal adhesive, and the cavities of the samples were filled with indirect composite resin. The SCA group was sandblasted with 50-micron aluminum oxide. Subsequently, the thermocycling process was carried out and the samples were subjected to 500 cycles in an aqueous solution between 4° and 55°C, and then the teeth were immersed in 2% methylene blue for 24 hours. Finally, the pieces were cut axially in a mesio-distal direction to assess the percentage of marginal microleakage. Statistical analysis was performed with the Shapiro-Wilk test. Results: The percentage of microleakage in the SSA group was 15.39% and in the SCA group it was 17%, giving a P-value is >0.05. Which means that there are no statistically significant differences. Conclusions: The results showed no statistically significant differences, so it was concluded that there is a similar performance in relation to marginal microleakage either with sandblasting or without sandblasting on the parts and adhesive used in this research.
Antecedents: Research in dentistry is of utmost importance because through this process it is possible to improve procedures and increase the average life of restorations in order to maintain or improve the oral health of patients. This is why the knowledge provided by research studies on new restorative techniques or new biomaterials must be constantly updated. The evolution of universal adhesives allows improving the properties of these materials in order to reduce errors in their technique. This is why universal adhesives were created, which are characterized by being self-etching or etch and rinse, both using a single bottle (eighth generation). Currently, the Kerr brand decided to create a ninth generation adhesive which is self-etching but with the particularity of using two bottles (primer and adhesive separately). Microleakage is the biggest challenge in adhesive restorations, since it can lead to a gap between the tooth and the restoration, which would cause a decrease in the useful life of the restoration, resulting in secondary caries, pulpitis, pigmentation of the margins, affecting esthetics and post operative sensitivity. Objective: To evaluate the percentage of marginal microleakage of immediate dentin sealing using 9th generation adhesive in surface treatment with sandblasting and without sandblasting prior to indirect resin cementation. Materials and methods: An in vitro study was carried out with a sample of 36 healthy molars with an indication for extraction, collected at the UNAB Santiago School of Dentistry, donated by patients, and two class II cavities were made, mesial and distal of the pieces. We proceeded to clean, seal and prepare the root surface of the samples to avoid leaking of the apical staining and not lead to null results. The samples were then divided into 2 groups of 18 teeth each; SCA and SSA. Immediate dentin sealing was performed with OptiBond ExTRa Universal adhesive, and the cavities of the samples were filled with indirect composite resin. The SCA group was sandblasted with 50-micron aluminum oxide. Subsequently, the thermocycling process was carried out and the samples were subjected to 500 cycles in an aqueous solution between 4° and 55°C, and then the teeth were immersed in 2% methylene blue for 24 hours. Finally, the pieces were cut axially in a mesio-distal direction to assess the percentage of marginal microleakage. Statistical analysis was performed with the Shapiro-Wilk test. Results: The percentage of microleakage in the SSA group was 15.39% and in the SCA group it was 17%, giving a P-value is >0.05. Which means that there are no statistically significant differences. Conclusions: The results showed no statistically significant differences, so it was concluded that there is a similar performance in relation to marginal microleakage either with sandblasting or without sandblasting on the parts and adhesive used in this research.
Notas
Tesis (Cirujano Dentista)
Palabras clave
Adhesivos Dentales, Evaluación, Materiales Dentales