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[The effect of air abrasion on enamel composite resin adhesive strength]
1Department of Oral Medicine, Ninth People's Hospital, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China.
Objective:
In this study we observed the effect of air abrasion on enamel-composite resin adhesive strength in vitro.
Methods:
Thirty teeth were prepared and divided into three groups. One group was air abraded and was acid-etched, another one was air abraded, and the other one was acid-etched. Next the bond and resin were used. Then we observed and compared the shear bond strength. The data were analysed by Chi square(chi(2)) test.
Results:
Enamel-composite resin adhesive strength were not affected by acid etching and air abrading, but can be affected by air abrading alone.
Conclusion:
In clinic the traditional acidetch technique that used in composite resin restoration can be replaced with air abrasion surface preparation technique.
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