Effect of adding ribbond fibres on marginal adaptation in class II composite restorations in teeth with affected dentine

Abstract

To evaluate the feasibility and effect on marginal adaptation in class II composite restoration reinforced with polyethylene fibres in teeth with affected dentine using scanning electron microscopy. Method and material: Class II cavities with dimension 1.5 +0 .25 pulpal depth and 4 ± 0.25 mm buccolingual width/.were prepared on proximal surfaces extracted human molars or premolar with affected/sound dentine on gingival margin. The etching priming and restorations were done in prepared samples as per manufacture directions. The samples were divided in 2 groups depending on use of ribbond inserts in composite restorative material. Samples were finished, stored in distilled water and then thermocycled manually and then sectioned longitudinally through the restorations. The marginal adaptation was evaluated using scanning electron microscope (SEM). Result: The result showed that there was a definite gap all along the interface between caries affected dentine and the composite material in both the groups. The bigger gap was present in group II compared to group I.

Effect of Using Fiber Reinforcement Ribbond® System on Marginal Adaptation of Fluoride Releasing Restorations: An In Vitro Study

“…These findings agreed with the previous studies 33,43 . These studies affirmed that the use of Ribbond ® fibers improved the marginal adaptation of the restoration.…”

“…The marginal adaptation of the gingival margins of the restorations was assessed using SEM and expressed in terms of percentage of gapped margin/ total margin. This method was chosen because it is reliable and truly quantitative method as it avoids the shortcomings of the classical microleakage assessment methods 19,43 .…”

“…Therefore, achieving adequate bonding to dentin in the gingival floor is still one of the challenges in restoring class II cavities 42 . It was supposed that the use of reinforcement polyethylene fiber ribbon could control shrinkage of resin-based restorative materials during polymerization, thus improving the marginal adaptation at the gingival floor in class II 43 . Therefore, this study aimed to evaluate the effect of using reinforcement polyethylene fiber ribbon on the marginal adaptation of three Giomer restorations at the gingival floor of class II.…”

Effect of a fiber‐reinforcing technique for direct composite restorations of structurally compromised teeth on marginal microleakage

“…Recent studies investigated the application of reinforcing fibers in composite resin restorations and highlighted that incorporation of UHMWPE fibers seemed to have beneficial effects regarding tooth resistance and longevity of the dental restorations 37–45 . However, the effect of UHMWPE fibers combined with different restorative materials and techniques on reducing the polymerization shrinkage stresses that are developed during photopolymerization and the detrimental effects that may follow such as bond failure and marginal microleakage, has not yet been widely investigated.…”

“…Recent studies investigated the application of reinforcing fibers in composite resin restorations and highlighted that incorporation of UHMWPE fibers seemed to have beneficial effects regarding tooth resistance and longevity of the dental restorations. [37][38][39][40][41][42][43][44][45]…”