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2017, Number 4

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Rev ADM 2017; 74 (4)

Enamel and dentin hybridization of high density glass ionomers; SEM study

Cedillo VJJ, Herrera AA, Farías MR

Language: Spanish
References: 27
Page: 177-184
PDF size: 1012.46 Kb.


ABSTRACT

According to minimal invasive dentistry philosophy glass ionomers, are making a comeback in restorative dentistry, due to their actual advantages like: hardness, aesthetics and active fluor liberation. Now it has been demonstrated, thanks to studies and clinical trials, that the new glass ionomers called high-density glass ionomers have an important clinical time span, similar to resins, with more advantages; and with a very simplified placement technique. The aim of this study is to analyze the adhesion and marginal adaptation of four high-density glass ionomers to the enamel and dentin. Material and methods: 16 first premolars were selected. To each one was made the conventional preparation class, one cavity of Black of 2 mm of height by 2 mm of width. The cavity (enamel and dentin) was conditioned with 10% polycyclic acid for 10 seconds, then washed and dried generously; and the glass ionomers were placed. They were divided into four groups; 1. Ionofil Molar® (VOCO), 2. Ketac Molar® (3M ESPE), 3. EQUIA FiL® (GC), 4. EQUIA Forte® (GC). At the end of the obturation. When the samples were already selected and prepared, were analyzed by scanning electron microscopy (SEM). Results: The characteristics found in the four groups, were as follows: the integration of glass ionomer with the dentin, was better than the enamel. The inorganic fillings of these materials are better defined in the last two groups. The adaptation of the restorative material is well observed inside the cavity. The formation of hybridization in the enamel and the dentin, were better in groups 2, 3 and 4. Conclusion: Of four studied groups: those that presented excellent marginal adaptation, hybridization to the enamel and dentin, were EQUIA FiL and EQUIA Forte, noting that those of group 4 (EQUIA Forte) resulted in having the best marginal adaptation, than any other glass ionomer included in this study.


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