Estudio comparativo in vitro del sellado marginal de restauraciones directas con adhesivos de cuarta generaciĆ³n versus novena generaciĆ³n
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2022
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es
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Universidad AndrƩs Bello
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Licencia CC
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Resumen
INTRODUCCIĆN: Los sistemas adhesivos se han desarrollado para facilitar la tĆ©cnica
de las restauraciones con resina compuesta y asĆ lograr un buen sellado marginal, sin
embargo, estos sistemas pueden fallar y generar complicaciones como la
microfiltraciĆ³n marginal. OBJETIVO: Determinar el grado de microfiltraciĆ³n en
restauraciones directas de resina compuesta con el uso de adhesivo de novena
(Optibond eXTRa universal, Kerr), versus cuarta generaciĆ³n (Optibond FL, Kerr).
MATERIALES Y MĆTODO: Estudio in vitro, en 24 dientes donados de pacientes
atendidos en las clĆnicas de CirugĆa Maxilofacial y TraumatologĆa de la UNAB, sede
Santiago, se realizaron preparaciones cavitarias estandarizadas para restauraciones
con resina compuesta divididos en dos grupos: Grupo OF donde se aplicĆ³ adhesivo
de cuarta generaciĆ³n (Optibond FL) y Grupo OU donde se aplicĆ³ el adhesivo de
novena generaciĆ³n (Optibond eXTRa universal), las muestras se sometieron a 500
ciclos de termociclado manual. Se realizĆ³ tinciĆ³n con azul de metileno 2% por 24
horas y se cortĆ³ a la mitad cada diente para medir el porcentaje de microfiltraciĆ³n al
microscopio. Los resultados obtenidos fueron sometidos a la prueba de normalidad
de Shapiro-Wilk (n<50) y a la prueba de homogeneidad de varianzas
(homocedasticidad) de Levene. RESULTADOS: La desviaciĆ³n estĆ”ndar (Ā±), mediana
y media fue para el grupo OF fue 14,62, 16,67, 16,25 y para el grupo OU 13,79, 6,67,
11,39 respectivamente. Los resultados de la prueba de normalidad y de
homocedasticidad resultaron altamente significativos (p<0,0005), como
consecuencia, fue obligatorio emplear una prueba estadĆstica no paramĆ©trica. La
prueba no fue significativa (p>0,05), por lo cual no existen diferencias
estadĆsticamente significativas. CONCLUSIĆN: Ambos materiales logran el mismo
grado de sellado marginal.
INTRODUCTION: Adhesive systems have been developed to facilitate the technique of composite resin restorations and thus achieve a good marginal seal, however, these systems can fail and generate complications such as marginal microleakage. OBJECTIVE: To determine the degree of microleakage in direct composite resin restorations using ninth-generation adhesive (Optibond eXTRa universal, Kerr), versus fourth-generation (Optibond FL, Kerr). MATERIALS AND METHOD: In vitro study, in 24 donated teeth from groups of patients treated at the Maxillofacial Surgery and Traumatology clinics of the UNAB, Santiago, standardized cavity preparations were made for restorations with composite resin divided into two groups: Group OF where applied fourth generation adhesive (Optibond FL) and Group OU where the ninth generation adhesive (Optibond eXTRa universal) was applied, the samples were subjected to 500 cycles of manual thermocycling. Staining was performed with 2% methylene blue for 24 hours and each tooth was cut in half to measure the percentage of microleakage. The results obtained were subjected to the Shapiro-Wilk normality test (n<50) and Levene's test for homogeneity of variances (homoscedasticity). RESULTS: The standard deviation (Ā±), median and mean for the OF group was 14.62, 16.67, 16.25 and for the OU group 13.79, 6.67, 11.39, respectively. The results of the normality and homoscedasticity test were highly significant (p<0.0005), as a consequence, it was mandatory to use a non-parametric statistical test. The test was not significant (p>0.05), so there are no statistically significant differences. CONCLUSION: Both materials achieved the same degree of marginal sealing.
INTRODUCTION: Adhesive systems have been developed to facilitate the technique of composite resin restorations and thus achieve a good marginal seal, however, these systems can fail and generate complications such as marginal microleakage. OBJECTIVE: To determine the degree of microleakage in direct composite resin restorations using ninth-generation adhesive (Optibond eXTRa universal, Kerr), versus fourth-generation (Optibond FL, Kerr). MATERIALS AND METHOD: In vitro study, in 24 donated teeth from groups of patients treated at the Maxillofacial Surgery and Traumatology clinics of the UNAB, Santiago, standardized cavity preparations were made for restorations with composite resin divided into two groups: Group OF where applied fourth generation adhesive (Optibond FL) and Group OU where the ninth generation adhesive (Optibond eXTRa universal) was applied, the samples were subjected to 500 cycles of manual thermocycling. Staining was performed with 2% methylene blue for 24 hours and each tooth was cut in half to measure the percentage of microleakage. The results obtained were subjected to the Shapiro-Wilk normality test (n<50) and Levene's test for homogeneity of variances (homoscedasticity). RESULTS: The standard deviation (Ā±), median and mean for the OF group was 14.62, 16.67, 16.25 and for the OU group 13.79, 6.67, 11.39, respectively. The results of the normality and homoscedasticity test were highly significant (p<0.0005), as a consequence, it was mandatory to use a non-parametric statistical test. The test was not significant (p>0.05), so there are no statistically significant differences. CONCLUSION: Both materials achieved the same degree of marginal sealing.
Notas
Tesis (Cirujano Dentista)
Palabras clave
Adhesivos Dentales, EvaluaciĆ³n, Materiales Dentales, Sellado marginal, Dentina, MicrofiltraciĆ³n, Resinas Compuestas