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Ex vivo microleakage comparison between glass ionomers used as pit and fissure sealants / Comparación in vitro de filtración marginal entre ionómeros vítreos selladores
Sly, Gabriela Edith; Missana, Liliana R; Nieva, Nicolás; Kaplan, Andrea Edith.
Affiliation
  • Sly, Gabriela Edith; National University of Tucuman. School of Dentistry. Department of Pediatric Dentistry. Tucumán. AR
  • Missana, Liliana R; National University of Tucuman. School of Dentistry. Department of Experimental and Oral Pathology. Tucumán. AR
  • Nieva, Nicolás; National University of Tucuman. School of Exact Sciences and Technology. Tucumán. AR
  • Kaplan, Andrea Edith; University of Buenos Aires. School of Dentistry. Department of Dental Materials. Buenos Aires. AR
Acta odontol. latinoam ; 28(2): 132-137, 2015. ilus, tab
Article in English | LILACS | ID: lil-768616
Responsible library: AR29.1
RESUMEN
El objetivo del trabajo fue comparar la eficacia como sellador de dos ionómeros vítreos. Se emplearon 30 premolares sanos extraídos por razones ortodóncicas. Se dividieron en dos grupos iguales (n=15) .Grupo I Fuji VII y Grupo II Fuji IX. Los dientes, fueron conservados en saliva artificial (NAF) durante 10 días. Luego, fueron termociclados (250 ciclos) a 5ºC, 37ºC y60ºC. Posteriormente se sumergieron en violeta de genciana durante 24 hs. Una vez lavadas las muestras se seccionaron y evaluaron con el criterio de Williams y Winter, utilizando un microscopio óptico (Olympus BX-60M) para valorar la penetración del colorante. Los grados obtenidos para cada grupo fueron en Grupo I (Fuji VII), Grado 1, 1 muestra y Grado3, 14 muestras (Media 2,87, Mediana 3 y SD 0.52). En el Grupo II (Fuji IX) los grados se distribuyeron así Grado 0, 4 muestras, Grado 1, 3 muestras, Grado 2, 2 muestras y Grado 3, 6 muestras.(Media 1.67, Mediana 2 y SD 1.29). La Prueba exacta de Fisher (p=0,006) demostró diferencias estadísticamente significativa entre materiales. Se concluyó que el mejor sellado marginal fue obtenido utilizando el material Fuji IX comparado con Fuji VII cuando es utilizado como sellador.
ABSTRACT
The aim of this study was to evaluate in vitro the marginalmicroleakage of two glass ionomer materials used as pit andfissure sealants. Thirty healthy premolars extracted fororthodontic treatment were randomly assigned to two groups(n=15) and respectively sealed with two glass ionomers (Group I,Fuji VII and Group II, Fuji IX). All teeth were preserved inartificial saliva (NAF) for 10 days, thermocycled (250 cycles; 5ºC,37ºC and 60ºC), isolated, and immersed in 2% alcohol gentianviolet blue solution for 24 h. After washing, teeth were included inacrylic resin and sectioned longitudinally in a bucco-lingualdirection with a Struers-Minitom cutting device. Samples wereanalyzed for leakage using an optical microscope (Olympus BX-60M). TheWilliams and Winter semi-quantitative ranked scale wasused to score dye penetration. In Group I the grades weredistributed as follows Grade 1, 1 sample and Grade 3, 14 samples(Mean 2.87 Median 3, SD 0.52). In Group II Grade 0 4 samples,Grade 1, 3 samples, Grade 2, 2 samples and Grade 3, 6 samples(Mean 1.67, Median 2, SD 1.29). Fisher’s exact test showedstatistically significant differences between materials (p=0.006).From these results, we conclude that Fuji IX had better marginalsealing than Fuji VII when used as a pit and fissure sealant.
Subject(s)

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Collection: International databases Database: LILACS Main subject: Pit and Fissure Sealants / Dental Leakage / Glass Ionomer Cements Limits: Humans Language: English Journal: Acta odontol. latinoam Journal subject: Dentistry Year: 2015 Document type: Article Affiliation country: Argentina Institution/Affiliation country: National University of Tucuman/AR / University of Buenos Aires/AR
Search on Google
Collection: International databases Database: LILACS Main subject: Pit and Fissure Sealants / Dental Leakage / Glass Ionomer Cements Limits: Humans Language: English Journal: Acta odontol. latinoam Journal subject: Dentistry Year: 2015 Document type: Article Affiliation country: Argentina Institution/Affiliation country: National University of Tucuman/AR / University of Buenos Aires/AR
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