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:: Volume 30, Issue 3 (7-2018) ::
J Iran Dent Assoc 2018, 30(3): 113-118 Back to browse issues page
Evaluation of Microleakage in Fissure Sealants following Contamination with Artificial Saliva at Different Curing Times with or without using bonding agent
Bahman Seraj1 , Saeedeh Mokhtari2 , Sara Ghadimi * 3, Fatemeh Ghanaat4 , Hossein Bagheri5
1- Associate Professor, Dental Research Center, Dental Research Institute, Tehran University of Medical Sciences, Tehran, Iran and Department of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
2- Assistant Professor, Department of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
3- Associate Professor, Laser Research Center of Dentistry, Dental Research Institute, Tehran University of Medical Sciences, Tehran, Iran and Department of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran , sghadimi@tums.ac.ir
4- Dentist, Private Practice, Tehran, Iran
5- Dental Materials Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
Abstract:   (3520 Views)
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 sec-onds) 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 10th second of curing; however, retreatment is required when no bonding has been applied, and contamination happens before 20th s of curing. Thus the isolation is more critical when pits and fissure sealants are applying without using a bonding agent.
Keywords: Dental Leakage, Pit and Fissure Sealants, Dental Bonding
Full-Text [PDF 411 kb]   (1326 Downloads)    
Type of Study: Original | Subject: Pediatric Dentistry
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Seraj B, Mokhtari S, Ghadimi S, Ghanaat F, Bagheri H. Evaluation of Microleakage in Fissure Sealants following Contamination with Artificial Saliva at Different Curing Times with or without using bonding agent . J Iran Dent Assoc 2018; 30 (3) :113-118
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Volume 30, Issue 3 (7-2018) Back to browse issues page
Journal of Iranian Dental Association

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