Glass-Ionomer Fissure Sealant May Not Be as Effective as Resin-Based Sealant in Preventing Caries

Lin, Jenn Yih

doi:10.1016/j.jebdp.2007.03.006

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…Many authors have considered GIC unsuitable for sealing pits and fissures because of their low physical characteristics 7,24) . Although GIC may not be observed in a pit or fissure, the material may still remain and prevent caries from forming 25,26) . The Cochrane Review 3) estimated that the caries-preventative effect of sealants ranges from 87% at 12 months to 60% at 48-54 months; however, this effect relies on adequate retention of the sealant.…”

Section: Resultsmentioning

confidence: 99%

A 48-month randomized controlled trial of caries prevention effect of a one-time application of glass ionomer sealant versus resin sealant

Haznedaroğlu

Güner

Duman

et al. 2016

Dental Materials Journal

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The aim of this study was to compare the caries prevention effectiveness, retention rates and the level of fluoride of saliva of a glassionomer sealant (GIS) with that of a resin-based sealant (RS). Eighty GIS and 80RS were placed on the first permanent molars in 40 children aged 7-10 years. Children were re-examined at 6, 12, 24, 36 and 48 months after the procedure. Saliva samples were collected before the sealant was applied and again at each appointment, and fluoride levels were measured. After 48 months, occlusal caries were seen in 4 and 12 teeth in GIS and RS groups respectively. There was a statistically significant difference in the fluoride levels of saliva between baseline and up to 12th month in GIS group. GISs presented effective prevention of caries development, even though the failure rate is higher when compared to the RSs. An increased salivary fluoride level due to GISs might be an additive effect on the prevention of dental caries.

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Section: Resultsmentioning

confidence: 99%

A 48-month randomized controlled trial of caries prevention effect of a one-time application of glass ionomer sealant versus resin sealant

Haznedaroğlu

Güner

Duman

et al. 2016

Dental Materials Journal

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Effect of Thermo-Oxidative Ageing on Aviation Polysulfide Sealants

Wang

Meng

2012

AMM

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Aviation polysulfide sealants have been subjected to thermo-oxidative ageing. Their morphologies, Shore A hardness, and tensile properties have been tested by means of an optical microscope, a glossiness meter, a Shore A hardness meter, and a universal testing machine. Changes in their microstructures were measured by Fourier-transform infrared spectroscopy and dynamic mechanical analysis (DMA). The results showed that glossiness was gradually reduced, and bubbles appeared on the surface of the samples during the course of ageing. The Shore A hardness of the sealant first decreased and then remained unchanged. Likewise, the tensile strength and tensile elongation percent first decreased and then remained unchanged. The infrared monitoring showed that the sealant underwent a post-cure reaction. The glass transition temperature and the room-temperature storage modulus of the sealant remained unchanged. No new functional groups were formed during ageing of the sealant. The aviation sealants did not undergo chemical degradation, showing that they have good endurance under thermo-oxidative conditions.

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Effects of Hydrothermal Treatment on the Structure and Properties of Aviation Polysulfide Sealant

Meng

Wang

2012

AMR

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An aviation polysulfide sealant has been soaked in a water bath at 85 °C to study the effects of hydrothermal treatment on this material. The morphology, Shore A hardness, and mechanical properties of the sealant were measured before and after soaking. The glass transition temperature (Tg) and room temperature storage modulus (E') were measured by means of a dynamic mechanical analyzer (DMA). The results showed that the surface glossiness of the polysulfide disappeared, some bubble defects appeared on its surface, the Shore A hardness and the tensile strength increased, while the elongation at break fluctuated with aging. The Tg and E' of the sealant changed only slightly. The chemical structure of the sealant was not obviously changed, and its aggregation state was changed only slightly, thus indicating that this sealant is characterized by good hydrothermal resistance.

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Glass-Ionomer Fissure Sealant May Not Be as Effective as Resin-Based Sealant in Preventing Caries

Cited by 3 publications

References 7 publications

A 48-month randomized controlled trial of caries prevention effect of a one-time application of glass ionomer sealant versus resin sealant

A 48-month randomized controlled trial of caries prevention effect of a one-time application of glass ionomer sealant versus resin sealant

Effect of Thermo-Oxidative Ageing on Aviation Polysulfide Sealants

Effects of Hydrothermal Treatment on the Structure and Properties of Aviation Polysulfide Sealant

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