Bond Strength of a Bisphenol-A-Free Fissure Sealant With and Without Adhesive Layer under Conditions of Saliva Contamination

Mesquita-Guimarães, Késsia Suênia Fidelis de; Sabbatini, Iliana Ferraz; Almeida, Cíntia Guimarães de; Galo, Rodrigo; Filho, Paulo Nelson; Borsatto, Maria Cristina

doi:10.1590/0103-6440201600569

Cited by 11 publications

(16 citation statements)

References 24 publications

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“…Similar to these studies, the results of the present study also showed a significant difference between bonding and non-bonding groups, and a higher percentage of microleakage in non-bonding groups. These findings are in line with the results of the studies carried out by Bahrololumi et al [12] and Mesquita-Guimarães et al [18]. Cehreli and Gungor [14] evaluated the microleakage of Helioseal F fissure sealant with and without different bonding agents.…”

supporting

confidence: 89%

“…Hence, bonding systems were recommended to be used before sealant to reduce the effects of saliva contamination. Mesquita-Guimarães et al [18] evaluated the effect of saliva contamination on bond strength of a Bisphenol-A free fissure sealant with and without an adhesive layer. They concluded that an adhesive system layer should be used prior to the sealant placement in either dry and saliva-contaminated enamel.…”

mentioning

confidence: 99%

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Evaluation of Microleakage in Fissure Sealants following Contamination with Artificial Saliva at Different Curing Times with or without using bonding agent

Seraj

Mokhtari

Ghadimi

et al. 2018

J Islam Dent Assoc Iran

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Background and Aim: One of the important factors in microleakage of fissure sealants is saliva contamination. Researchers believe that applying bonding agents can reduce the microleakage. The present study compared the microleakage of a fissure sealant contaminated with artificial saliva at different curing times with or without using a bonding agent. Materials and Methods: In this in-vitro study, 96 extracted premolars were randomly divided into eight groups. Fissure sealant was applied to all groups; in 4 groups after putting on a bonding agent and in remaining four without a bonding agent. Specimens of each group were contaminated with saliva at different times (5, 10, 15 and 20 seconds) during curing. Then the microleakage of samples was measured. Mann-Whitney and Kruskal-Wallis tests were used to statistically analyze the collected data. Results: No-bonding groups had significantly higher microleakage values than bonding groups. Among bonding groups, the microleakage values were significantly lower when contamination occurred after 15 and 20 seconds of light curing. Amounts of microleakage were similar in no-bonding groups (P=0.39) when contamination occurred at 5, 10 and 15 seconds of curing; however, contamination after 20 seconds led to significantly lower microleakage (P<0.001). Conclusion: The findings revealed that when using the bonding agent, retreatment is not required if contamination occurs after 10 th second of curing; however, retreatment is required when no bonding has been applied, and contamination happens before 20 th s of curing. Thus the isolation is more critical when pits and fissure sealants are applying without using a bonding agent.

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supporting

confidence: 89%

mentioning

confidence: 99%

Evaluation of Microleakage in Fissure Sealants following Contamination with Artificial Saliva at Different Curing Times with or without using bonding agent

Seraj

Mokhtari

Ghadimi

et al. 2018

J Islam Dent Assoc Iran

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“…Mesquita-Guimarães et al in 2016 evaluated the shear bond strength of hydrophilic resinbased fissure sealant on 90 extracted third molars teeth in a laboratory study using saliva contaminated and non-contaminated surfaces. Embrace WetBond exhibited the lowest shear bond results as reported in comparison to Fluoroshield hydrophobic sealant (27).…”

Section: Introductionmentioning

confidence: 77%

“…The bond strength was calculated according to following equation: Shear bond strength (MPa) = the maximum failure load recorded in (N)/surface area in mm2 Finally Fracture mode assessment (27) was completed by examining each specimen using the light stereomicroscope (OLYMPUS SZ II. Olympus optical Co. Tokyo, Japan) under x25 magnification to determine the location and type of failure whether it was cohesive or adhesive or mixed (fig 3 -6).…”

Section: Methodsmentioning

confidence: 99%

Evaluation of Bond Strength of Hydrophilic Pit and Fissure Sealants (In Vitro Study).

zaghloul

Abdelrahman

Bakry

et al. 2022

Alexandria Dental Journal

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BACKGROUND: Pit and fissure sealants are considered a major tool of prevention. A new hydrophilic sealant which can be used in young permanent will be better for caries prevention. OBJECTIVES:The aim of this study to assess the retention of the hydrophilic resin-based fissure sealant compared to the hydrophobic conventional fissure sealants. MATERIAL AND METHOD: 22 premolars were collected and randomly allocated into two groups (n= 11), Group I (test); hydrophilic sealant Embrace wetbond; Group II (control) hydrophobic sealant Helioseal F. The buccal surface of all teeth was prepared, flattened, etched and rinsed. Group I was contaminated with artificial saliva then dried with cotton pellet and Group II was dried with air only. Sealants were applied and cured. Specimens were thermocycled and shear bond strength was evaluated using a universal testing machine. A stereomicroscope at magnification ×25 was used to evaluate mode of failure of each specimen. RESULTS: According to statistical analysis (Mann whitney U), Hydrophilic sealant demonstrated significant lower median shear bond strength at P<0.001 compared to hydrophobic sealant. Hydrophilic sealant showed mostly adhesive mode of failure compared to higher mixed failure in hydrophobic sealant, however, it was nonsignificant at P= 0.19 (Fisher exact). CONCLUSION: Hydrophilic sealant retention is not efficient as conventional hydrophobic sealant.

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“…However, other studies found that the addition of this step had no advantages ( 6 , 7 ). One study reported that applying an adhesive reduced the negative effect of saliva contamination on sealant bond strength to the enamel surface ( 8 ).…”

Section: Introductionmentioning

confidence: 99%

Sealing effectiveness of fissure sealant bonded with universal adhesive systems on saliva-contaminated and noncontaminated enamel

et al. 2017

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BackgroundThe effectiveness of sealants is dependent upon their adhesion to enamel surface. The aim of the study was to evaluate the sealing ability of a pit and fissure sealant used with a universal adhesive (etch-and-rinse vs. self-etch modes) when the site is contaminated with saliva. Adhesive properties were evaluated as microleakage and scanning electron microscopic (SEM) characteristics.Material and MethodsA total of 72 mandibular third molars were randomly divided into 6 groups (n=12). Occlusal pits and fissures were sealed with an unfilled resin fissure sealant (FS) material with or without saliva contamination. The groups included: 1) phosphoric acid etching + FS (control), 2) phosphoric acid etching + Scotchbond Universal (etch-and-rinse) + FS, 3) phosphoric acid etching + saliva + Scotchbond Universal (etch-and-rinse) + FS, 4) Scotchbond Universal (self-etching) + FS,5) Scotchbond Universal (self-etching) + saliva + FS, and 6) Scotchbond Universal (self-etching) + saliva + Scotchbond Universal + FS. After thermocycling, the teeth were placed in 0.5% fuchsin, sectioned, and evaluated by digital microscopy. Two samples from each group were also observed by SEM. The data were analyzed with Kruskal-Wallis and Mann-Whitney tests for a significance of p<0.05.ResultsThere were significant differences among groups. Groups 1,2 and 4 showed the least microleakage, with no significant differences among groups. Saliva contamination led to increased microleakage and gap formation in SEM images in groups 3, 5 and 6.ConclusionsThe fissure sealing ability of the universal adhesive in etch-and-rinse or self-etch modes was similar to that of conventional acid etching. Saliva contamination had a negative effect on sealant adhesion to pretreated enamel. Key words:Pit and fissure sealant, Universal adhesive, Saliva.

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Bond Strength of a Bisphenol-A-Free Fissure Sealant With and Without Adhesive Layer under Conditions of Saliva Contamination

Cited by 11 publications

References 24 publications

Evaluation of Microleakage in Fissure Sealants following Contamination with Artificial Saliva at Different Curing Times with or without using bonding agent

Evaluation of Microleakage in Fissure Sealants following Contamination with Artificial Saliva at Different Curing Times with or without using bonding agent

Evaluation of Bond Strength of Hydrophilic Pit and Fissure Sealants (In Vitro Study).

Sealing effectiveness of fissure sealant bonded with universal adhesive systems on saliva-contaminated and noncontaminated enamel

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