Category: Laboratory Research
Comparison of Microleakage of Class V Cavities restored with Nanofilled Resin Composite, Highly Viscous Glass-Ionomer Cement and Highly Viscous Glass-Ionomer Cement/Resin Coating.
Kornkamon Sukchita* (nidchan46@yahoo.com)| Kirati Srichuanchuenskunb
aFaculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand
bMaha Sarakham Hospital, Maha Sarakham, Thailand
Objective: The purpose of this in vitro study was to evaluate the microleakage of class V cavities restored with nanofilled resin composite (Filtek Z350 XT, 3M), highly viscous glass-ionomer cement (Ketac Universal Aplicap, 3M), and a highly viscous glass-ionomer cement/resin coating (EQUIA Forte Fil, GC) at occlusal and gingival margins.
Methods: Thirty sound extracted human maxillary premolars were prepared for class V cavities (2.6 mm. mesio-distal width, 4 mm, occluso-gingival width, and 2 mm depth) on the buccal surfaces. All the prepared teeth were randomly divided into 3 groups (n=10) and restored with the 3 materials following the manufacturers’ recommendations. After that, all restored teeth were submitted to simultaneous 5,000 thermal cycles in water at 55oC and 5oC and stained with the 2% methylene blue solution for 4 hours. All teeth were sectioned and evaluated for microleakage with a stereoscopic microscope. The statistically differences among the 3 groups were analyzed by using Mann-Witney U test (α=0.05).
Results: At the occlusal margins, the percentage of microleakage scores of Filtek Z350 XT, EQUIA Forte Fil glass ionomer cement, and Ketac Universal Aplicap glass ionomer cement restorations were 21.45±10.25, 27.48±15.49, and 100 respectively. At the gingival margins, the percentage of microleakage scores of Filtek Z350 XT, EQUIA Forte Fil glass ionomer cement and Ketac Universal Aplicap glass ionomer cement restorations were 24.82±6.19, 51.63±20.21, and 100 respectively. The class V cavity restored with resin composite Filtek Z350 XT had the lowest percentage of mean microleakage score than EQUIA Forte Fil glass ionomer cement and Ketac Universal Aplicap glass ionomer cement both at occlusal and gingival margins.
Conclusion: The class V cavity restored with resin composite Filtek Z350 XT had lower percentage of mean microleakage score than EQUIA Forte Fil glass ionomer cement and Ketac Universal Aplicap glass ionomer cement both at occlusal and gingival margin. Ketac Universal Aplicap glass ionomer cement restoration had the significantly highest percentage of mean microleakage score.
Funding/Conflict of Interest: None.
Keywords: microleakage, highly viscous glass-ionomer cement, resin composite
