Effect of radiotherapy on microhardness and surface morphology of pretreated primary teeth with silver diamine fluoride: an in vitro study

<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Surface Microhardness (SMH) of the samples was tested by a Vickers microhardness testing machine (MITUTOYA, Japan) under a load of 50 grams &nbsp;for 10 seconds. The microhardness for each sample was assessed at five different sites within the sample, 300 &micro;um <a href="#_msocom_4">]</a>&nbsp;apart from each other and their mean was considered as the final&nbsp;microhardness for that particular sample. Two representative samples for from each group that is 2 samples from SDF group and 2 samples from control group were prepared to be evaluated using carry out SEM&nbsp;(JEOL JSM-6380A). The samples were scanned at power of 100X, 500X and 1000X magnification &nbsp;and photomicrographs were taken to observe the structural changes in the enamel.</p> <p>&nbsp;</p>