Clinical retention comparison of fissure sealant versus flowable composite in type I adhesive conservative restoration sfter preparation with self etch bonding

Abstract

Introduction: Tooth decay is one of the most common challenges in childhood. Pit and fissures have the highest risk of caries due to their deep anatomical shape and design. Today, dentistry is more oriented towards prevention. Methods of caries prevention include fluoride therapy, fissure sealant therapy, and conservative adhesive restoration (CAR). Conservative adhesive restorations are a replacement method for restoring young permanent teeth that require only minimal tooth prepration to remove caries. Longterm retention of conservative adhesive restoration is critical . In children, a separate stage of etching and washing causes the patient to become uncooperative and reduce isolation, so the self-etching system was used to overcome the clinical limitations of previous studies in this study. The aim of this study was to compare the clinical retention rate of composite flow and fissure sealants in type 1 conservative adhesive restorations after tooth preparation with self-etch bonding.

Material and method: In this clinical trial study, 55 subjects (110 teeth) in the age group of 6-12 years were randomly who had first permanent bilateral mandible molars with occlusal surface caries at the level of enamel and eligible for CAR repair. The tooth was isolated and prepaired.. Two layers of self-etch bonding material were applied, then a gentle stream of air was used, and then curing was performed for 10 seconds. On one side, a flow composite was applied to the pit and adjacent fissures and on the other side, a sealant was placed on the pit and fissure and cavity for sealing, and curing was performed on both sides for 20 seconds. After 3 and 6 months, restorations were examined and compared with Mirrors and catheters. If the treatment failed in the follow-up, the tooth was retreated. Results were reported using descriptive statistics.

Results: 47 of 55 subjects were recalled after 3 month from wich 97.9% of composite flow restorations showed full retention with no caries and 2.1% of composite flow restorations showed partial loss with no caries. 70.2% of subjects restored with fissure sealent material showed full retention with no caries , 17%showed patial loss with no caries ,4.3% showed partial loss and evidence of caries ,6.4% showed complete retention loss with no caries and 2.1% showed complete retention loss with caries. 43 of 55 subjects were recalled after 6 month from wich wich 95.3% of composite flow restorations showed full retention with no caries and 4.7% of composite flow restorations showed partial loss with no caries. 55.8% of subjects restored with fissure sealent material showed full retention with no caries ,30.2 %showed patial loss with no caries ,4.7 % showed partial loss and evidence of caries ,7 % showed complete retention loss with no caries and 2.3 % showed complete retention loss with caries.

Conclusion: The retention of flowable composite is higher than fissure sealant after conservative adhesive restoration in 3 and 6 months follow up and this difference is statistically significant (p <0.05).