Effect of Precuring and Postcuring of Total-etch and Self-etch Bonding Agents on the Microleakage of Fissure Sealants

Seraj, Bahman; Meighani, Ghasem; Milani, Shabnam; Fatemi, Mostafa

doi:10.18502/fid.v16i6.3441

Cited by 2 publications

(1 citation statement)

References 23 publications

(22 reference statements)

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“…Sealant retention is usually evaluated by the shear bond strength (SBS) test and the results are considered to be reliable and valid in the comparative study of determining the adhesion between the dental material and tooth structure [21]. Microleakage tests are designed to evaluate the sealing ability by marking the permeable area around the restoration or sealant material with a penetrant [13,22]. Methylene blue, fuchsine, and silver nitrate were the most commonly used penetrants, with no significant differences.…”

Section: Introductionmentioning

confidence: 99%

Shear Bond Strength and Microleakage of Pit and Fissure Sealants Placed after Saliva-Contaminated Etched Enamel

et al. 2022

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Saliva contamination of etched enamel before sealant application is the most common reason for failure of fissure sealants, thus affecting the effect of caries prevention. This study aimed to evaluate the shear bond strength (SBS) and microleakage of resin-based fissure sealant on saliva-contaminated etched enamel after rinsing, re-etching, and applying universal adhesive. Fifty human third molars were sectioned into 2 parts and embedded in acrylic resin to obtained 100 samples. The samples were randomly assigned to 5 groups: 1, etching; 2, etching + contamination; 3, etching + contamination + rinsing; 4, etching + contamination+ re-etching; 5, etching + contamination + universal adhesive. Each group was divided into 2 subgroups: 24 h storage and 5000× thermocycling. After measuring SBS, failure mode was analyzed. In an additional 15 teeth, microleakage was tested using dye penetration method. Three more teeth were used for scanning electron microscope (SEM) observation of the enamel surface morphology in each group. The adhesive group had significantly higher mean SBS after 24 h storage, while the re-etching group were better after 5000× thermocycling. The etching, etching+ contamination+ re-etching, and etching+ contamination+ universal adhesive groups showed the least microleakage. The SEM reveals considerable variations in the enamel surface appearance within groups. Re-etching or applying universal adhesive in saliva-contaminated etched enamel before sealant can achieve satisfactory results. Considering the less operative steps and the shorter chair time, applying universal adhesive is more recommended for a pediatric patient if saliva-contamination happened before sealant application.

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Section: Introductionmentioning

confidence: 99%

Shear Bond Strength and Microleakage of Pit and Fissure Sealants Placed after Saliva-Contaminated Etched Enamel

et al. 2022

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Effect of adhesive system on retention of different sealants: an in vitro study

Jayatri,

Ankita,

Rituraj

et al. 2024

IJPedoR

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Introduction: Fissure sealants' (FSs) clinical success is closely tied to their proper application and ability to achieve good adhesion. Aim: The aim of the study was to determine whether bonding agents with co-curing / staged-curing were more effective at retaining various RBS in permanent teeth than those without co-curing / staged-curing. Materials and methods: 36 healthy extracted human premolars were selected and removed from debris/blood stains which were then mounted in acrylic resin with the buccal surface facing upward. The samples were etched with 37% phosphoric acid for 15 seconds and divided evenly into 2 groups I & II(n=18). Helioseal-F plus (group I) and Clinpro (group II). Each group was subsequently split into three subgroups, A, B and C (n=6). Subgroup A (No-bonding) was not received bonding agent. Prior to sealant application, subgroup B (Staged-curing) received bonding agent that had been cured. while subgroup C (Co-curing) received cured adhesive system after the application of sealant. Shear bond test was tested by using the universal testing machine. A post hoc Tukey test and ANOVA (analysis of variance) were used to analyse the data. Results: The results showed that the shear bond strength of group I (Subgroup IB) and group II (Subgroup IIB) which interact with Staged-curing was much greater than that of the other groups. Conclusion In comparison to No-bonding and Co-curing using a bonding agent as Staged-curing prior to the insertion of an RBS in permanent teeth increased SBS.

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Effect of Precuring and Postcuring of Total-etch and Self-etch Bonding Agents on the Microleakage of Fissure Sealants

Cited by 2 publications

References 23 publications

Shear Bond Strength and Microleakage of Pit and Fissure Sealants Placed after Saliva-Contaminated Etched Enamel

Shear Bond Strength and Microleakage of Pit and Fissure Sealants Placed after Saliva-Contaminated Etched Enamel

Effect of adhesive system on retention of different sealants: an in vitro study

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