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Background: The aim of the present study was to determine Shear bond strength (SBS) of different flowable
compomers on the enamel surface of primary teeth. The null hypothesis to be tested was that none of the flowable
compomer would differ significantly from the other two with respect to SBS. As a result, the tested materials that
have the easiest application on child patient is preferred.
Material and Methods: Sixty newly extracted non carious primary molars were selected. The buccal surface was
cleaned and polished to obtain a flat enamel surface. The specimens were randomly divided into three groups of
20 teeth each, based on the flowable compomers applied, as follows: group I: Dyract Flow® (Dentsply, Konstanz,
Germany); group II: Twinky Star Flow® (Voco, Cuxhaven, Germany); and group III: R&D Series Nova Compomer Flow® (Imicryl, Konya, Turkey).
Results: SBS in group II (6.78± 0.45 MPa) were significantly lower than groups I and III (8.30 ± 0.29 and 8.43 ±
0.66 MPa, respectively) (
P
<.001). No significant difference was found between groups I and III (
P
<.05).
Conclusions: Significant differences existed between the SBS of the groups. Therefore, the null hypothesis was
rejected. Flowable compomers can provide adequate SBS with self-etching system at restoration of primary teeth.
Thus, successful restorations in pediatric patients can be done in a practical way
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