Gönülol, Nihan Ondokuz Mayis Üniversitesi - Dis Hekimligi Fakültesi - Restoratif Dis Tedavisi Anabilim Dali, Turkey , Özer, Sezin Ondokuz Mayis Üniversitesi - Dis Hekimligi Fakültesi - Pedodonti Anabilim Dali, Turkey , Demirel, Neslihan Ondokuz Mayis Üniversitesi - Dis Hekimligi Fakültesi - Pedodonti Anabilim Dali, Turkey

Microleakage evaluation of giomer flowable composites and adhesive systems in Class V cavities

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OBJECTIVE: To evaluate the microleakage of a giomer-based flowable composite resin and an adhesive system, and their combination with a conventional flowable composite resin and an adhesive system in Class V cavities. MATERIALS AND METHOD: Standardized Class V cavities (mesial-distal width: 4 mm, occlusal-gingival width: 3 mm, depth: 2mm) were prepared on the buccal and lingual sides of 20 human third molars. The teeth were randomly divided into 4 groups containing 10 cavities each. Giomer adhesive system FL-Bond II and flowable composite Beautifil Flow Plus and conventional adhesive system Clearfil SE Bond and flowable composite Filtek Ultimate were used as follows; Group FLB: FL-Bond II+Beautifil Flow Plus, Group FLU: FL-Bond II+Filtek Ultimate, Group SEB: Clearfil SE Bond+Beautifil Flow Plus, Group SEU: Clearfil SE Bond+Filtek Ultimate. The teeth were subjected to 1000 thermal cycles between 5-55 °C and then immersed in 0.5% basic fuchsin solution for 24 h. The dye penetration was examined under a stereomisroscope and scored. The results were statistically analyzed by using Kruskal-Wallis and Mann-Whitney U tests. RESULTS: Significant differences were detected both in enamel and in dentin (p 0.05). In dentin, Group FLB exhibited significantly higher microleakage scores than the other groups (p 0.05). In enamel, Group SEU exhibited significantly higher microleakage scores than Group FLB and Group SEB (p 0.05). CONCLUSION: In dentin, combination of both type of flowable composites with the 10-MDP-containing conventional adhesive system (Clearfil SE Bond) caused less microleakage. In enamel, regardless of the type of the adhesive system groups restored with the giomer composite exhibited less microleakage.

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Composite resins , dental leakage , flowable hybrid composite , fluorid, giomer

Acta Odontologica Turcica

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