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Articles by H. Torabzadeh
Total Records ( 1 ) for H. Torabzadeh
  M. Vahid Golpayegani , A. Ganji , A. Ghassem , H. Torabzadeh and G. Ansari
  The purpose of this in vitro study was to compare the surface roughness of two different composite resin restorations (Heliomolar and Supreme) following treatment by three fluoride components of APF, Neutral NaF Gel and foam. APF (1.23%) and Neutral NaF in the form of gel and foam were selected and the tested composites were Supreme and Heliomolar. Twenty cylindrical specimens were made from each composite and randomly divided into 20 groups. After 48 h of storage in distilled water, the composites were subjected to the fluoride treatments so that the total number of applications became equal to 1 year fluoride treatment regimen (4 min/6 months). The control groups were not subjected to the fluoride treatments and were kept in distilled water. Then all specimens were assessed by Scanning Electron Microscopy (SEM). In the second stage, another twenty cylindrical specimens were made in the same manner and each specimen was weighed on a scale with 0.0001 precision. The specimens were again weighed accordingly both after the first and second fluoride applications. The SEM observations were evaluated by calculating Kappa agreement index. Agreement could not be calculated except for APF foam group. The data of second stage showed no significant differences among three groups.
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