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Effectiveness of mixing procedure on the microleakge of glass ionomer cement as filling material in primary molars (in vitro study)

Author: Maha Abdul- Kareem مها عبد الكريم
Journal: Tikrit Journal for Dental Sciences مجلة تكريت لعلوم طب الاسنان ISSN: 20731213 Year: 2015 Volume: 3 Issue: 1 Pages: 55-61
Publisher: Tikrit University جامعة تكريت


Background: Well-adapted restorations with adequate marginal sealing are of extreme importance for the success of atraumatic restorative treatment, The present study was carried out to find if the mixing procedure affect the marginal seal of hand mixed and capsulated glass-ionomer in Class I cavities of 30 non carious primary molars.Materials and Methods:Standardized Class I cavity preparations were prepared in 30 extracted sound primary molars. The teeth were then randomly divided into two groups: Group I: filled with mechanically mixed (capsulated) glass ionomer cement (GIC). Group II: filled with hand mixed glass ionomer . After that the teeth were subjected to 250 thermal cycles with a 15 second dwell time in each, then sectioned to be examined under the stereo microscope.Results:The sealing ability of the GIC filling materials was determined by their ability to inhibit dye penetration. Data were analyzed according to t-test. The hand mixed GIC provides a better seal than capsulated GIC, there were no significant differences between the two studied groups in their resistance to dye penetration. Conclusion: Hand mixed GIC presented a better performance regarding microleakage in comparison to capsulated GIC.

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