Evaluation of Gingival Microleakage in Class II Composite Restorations with Different Lining Techniques: An In Vitro Study
| Autor: | Swapna Devarasanahalli Venkataramanaswamy, Swaroop Hegde, Vedavathi Bore Gowda, Rashmi Krishna, B V Sreenivasa Murthy, Veena S Pai |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Molar
Materials science Article Subject business.industry Varnish Composite number lcsh:R Glass ionomer cement Dentistry lcsh:Medicine visual_art Stereo microscope visual_art.visual_art_medium Flowable Composite In vitro study lcsh:Q Adper single bond 2 General Agricultural and Biological Sciences business lcsh:Science General Environmental Science Research Article |
| Zdroj: | Scientifica, Vol 2015 (2015) Scientifica |
| Popis: | Aim. To compare the microleakage in class II composite restorations without a liner/with resin modified glass ionomer and flowable composite liner.Method. Forty standardized MO cavities were prepared on human permanent mandibular molars extracted for periodontal reasons and then divided into 4 groups of ten specimens. The cavity preparations were etched, rinsed, blot dried, and light cured and Adper Single Bond 2 is applied. Group 1 is restored with Filtek P60 packable composite in 2 mm oblique increments. Group 2 is precure group where 1 mm Filtek Z350 flowable liner is applied and light cured for 20 sec. Group 3 is the same as Group 2, but the liner was cocured with packable composite. In Group 4, 1 mm RMGIC, Fuji Lining LC is applied and cured for 20 sec. All the teeth were restored as in Group 1. The specimens were coated with nail varnish leaving 1 mm around the restoration, subjected to thermocycling, basic fuchsin dye penetration, sectioned mesiodistally, and observed under a stereomicroscope.Results. The mean leakage scores of the individual study groups were Group 1 (33.40), Group 2 (7.85), Group 3 (16.40), and Group 4 (24.35). Group 1 without a liner showed maximum leakage. Flowable composite liner precured was the best. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|